diff --git a/.env.example b/.env.example
index f1963f7..5de04b7 100644
--- a/.env.example
+++ b/.env.example
@@ -18,7 +18,12 @@ ALLOWED_SCRIPT_PATHS="scripts/"
 WEBSOCKET_PORT="3001"
 
 # User settings
+# Optional tokens for private repos: GITHUB_TOKEN (GitHub), GITLAB_TOKEN (GitLab),
+# BITBUCKET_APP_PASSWORD or BITBUCKET_TOKEN (Bitbucket). REPO_URL and added repos
+# can be GitHub, GitLab, Bitbucket, or custom Git servers.
 GITHUB_TOKEN=
+GITLAB_TOKEN=
+BITBUCKET_APP_PASSWORD=
 SAVE_FILTER=false
 FILTERS=
 AUTH_USERNAME=
diff --git a/src/app/_components/GeneralSettingsModal.tsx b/src/app/_components/GeneralSettingsModal.tsx
index fbeb1a7..a9146de 100644
--- a/src/app/_components/GeneralSettingsModal.tsx
+++ b/src/app/_components/GeneralSettingsModal.tsx
@@ -1617,7 +1617,7 @@ export function GeneralSettingsModal({
                       <Input
                         id="new-repo-url"
                         type="url"
-                        placeholder="https://github.com/owner/repo"
+                        placeholder="https://github.com/owner/repo or https://git.example.com/owner/repo"
                         value={newRepoUrl}
                         onChange={(e: React.ChangeEvent<HTMLInputElement>) =>
                           setNewRepoUrl(e.target.value)
@@ -1626,8 +1626,9 @@ export function GeneralSettingsModal({
                         className="w-full"
                       />
                       <p className="text-muted-foreground mt-1 text-xs">
-                        Enter a GitHub repository URL (e.g.,
-                        https://github.com/owner/repo)
+                        Supported: GitHub, GitLab, Bitbucket, or custom Git
+                        servers (e.g. https://github.com/owner/repo,
+                        https://gitlab.com/owner/repo)
                       </p>
                     </div>
                     <div className="border-border flex items-center justify-between gap-3 rounded-lg border p-3">
diff --git a/src/env.js b/src/env.js
index cb4aae6..6b6972f 100644
--- a/src/env.js
+++ b/src/env.js
@@ -23,8 +23,11 @@ export const env = createEnv({
     ALLOWED_SCRIPT_PATHS: z.string().default("scripts/"),
     // WebSocket Configuration
     WEBSOCKET_PORT: z.string().default("3001"),
-    // GitHub Configuration
+    // Git provider tokens (optional, for private repos)
     GITHUB_TOKEN: z.string().optional(),
+    GITLAB_TOKEN: z.string().optional(),
+    BITBUCKET_APP_PASSWORD: z.string().optional(),
+    BITBUCKET_TOKEN: z.string().optional(),
     // Authentication Configuration
     AUTH_USERNAME: z.string().optional(),
     AUTH_PASSWORD_HASH: z.string().optional(),
@@ -62,8 +65,10 @@ export const env = createEnv({
     ALLOWED_SCRIPT_PATHS: process.env.ALLOWED_SCRIPT_PATHS,
     // WebSocket Configuration
     WEBSOCKET_PORT: process.env.WEBSOCKET_PORT,
-    // GitHub Configuration
     GITHUB_TOKEN: process.env.GITHUB_TOKEN,
+    GITLAB_TOKEN: process.env.GITLAB_TOKEN,
+    BITBUCKET_APP_PASSWORD: process.env.BITBUCKET_APP_PASSWORD,
+    BITBUCKET_TOKEN: process.env.BITBUCKET_TOKEN,
     // Authentication Configuration
     AUTH_USERNAME: process.env.AUTH_USERNAME,
     AUTH_PASSWORD_HASH: process.env.AUTH_PASSWORD_HASH,
diff --git a/src/server/lib/gitProvider/bitbucket.ts b/src/server/lib/gitProvider/bitbucket.ts
new file mode 100644
index 0000000..4205c70
--- /dev/null
+++ b/src/server/lib/gitProvider/bitbucket.ts
@@ -0,0 +1,55 @@
+import type { DirEntry, GitProvider } from './types';
+import { parseRepoUrl } from '../repositoryUrlValidation';
+
+export class BitbucketProvider implements GitProvider {
+  async listDirectory(repoUrl: string, path: string, branch: string): Promise<DirEntry[]> {
+    const { owner, repo } = parseRepoUrl(repoUrl);
+    const listUrl = `https://api.bitbucket.org/2.0/repositories/${owner}/${repo}/src/${encodeURIComponent(branch)}/${path}`;
+    const headers: Record<string, string> = {
+      'User-Agent': 'PVEScripts-Local/1.0',
+    };
+    const token = process.env.BITBUCKET_APP_PASSWORD ?? process.env.BITBUCKET_TOKEN;
+    if (token) {
+      const auth = Buffer.from(`:${token}`).toString('base64');
+      headers.Authorization = `Basic ${auth}`;
+    }
+
+    const response = await fetch(listUrl, { headers });
+    if (!response.ok) {
+      throw new Error(`Bitbucket API error: ${response.status} ${response.statusText}`);
+    }
+
+    const body = (await response.json()) as { values?: { path: string; type: string }[] };
+    const data = body.values ?? (Array.isArray(body) ? body : []);
+    if (!Array.isArray(data)) {
+      throw new Error('Bitbucket API returned unexpected response');
+    }
+    return data.map((item: { path: string; type: string }) => {
+      const name = item.path.split('/').pop() ?? item.path;
+      return {
+        name,
+        path: item.path,
+        type: item.type === 'commit_directory' ? ('dir' as const) : ('file' as const),
+      };
+    });
+  }
+
+  async downloadRawFile(repoUrl: string, filePath: string, branch: string): Promise<string> {
+    const { owner, repo } = parseRepoUrl(repoUrl);
+    const rawUrl = `https://api.bitbucket.org/2.0/repositories/${owner}/${repo}/src/${encodeURIComponent(branch)}/${filePath}`;
+    const headers: Record<string, string> = {
+      'User-Agent': 'PVEScripts-Local/1.0',
+    };
+    const token = process.env.BITBUCKET_APP_PASSWORD ?? process.env.BITBUCKET_TOKEN;
+    if (token) {
+      const auth = Buffer.from(`:${token}`).toString('base64');
+      headers.Authorization = `Basic ${auth}`;
+    }
+
+    const response = await fetch(rawUrl, { headers });
+    if (!response.ok) {
+      throw new Error(`Failed to download ${filePath}: ${response.status} ${response.statusText}`);
+    }
+    return response.text();
+  }
+}
diff --git a/src/server/lib/gitProvider/custom.ts b/src/server/lib/gitProvider/custom.ts
new file mode 100644
index 0000000..a4db2a0
--- /dev/null
+++ b/src/server/lib/gitProvider/custom.ts
@@ -0,0 +1,44 @@
+import type { DirEntry, GitProvider } from "./types";
+import { parseRepoUrl } from "../repositoryUrlValidation";
+
+export class CustomProvider implements GitProvider {
+  async listDirectory(repoUrl: string, path: string, branch: string): Promise<DirEntry[]> {
+    const { origin, owner, repo } = parseRepoUrl(repoUrl);
+    const apiUrl = `${origin}/api/v1/repos/${owner}/${repo}/contents/${path}?ref=${encodeURIComponent(branch)}`;
+    const headers: Record<string, string> = { "User-Agent": "PVEScripts-Local/1.0" };
+    const token = process.env.GITEA_TOKEN ?? process.env.GIT_TOKEN;
+    if (token) headers.Authorization = `token ${token}`;
+
+    const response = await fetch(apiUrl, { headers });
+    if (!response.ok) {
+      throw new Error(`Custom Git server: list directory failed (${response.status}).`);
+    }
+    const data = (await response.json()) as { type: string; name: string; path: string }[];
+    if (!Array.isArray(data)) {
+      const single = data as unknown as { type?: string; name?: string; path?: string };
+      if (single?.name) {
+        return [{ name: single.name, path: single.path ?? path, type: single.type === "dir" ? "dir" : "file" }];
+      }
+      throw new Error("Custom Git server returned unexpected response");
+    }
+    return data.map((item) => ({
+      name: item.name,
+      path: item.path,
+      type: item.type === "dir" ? ("dir" as const) : ("file" as const),
+    }));
+  }
+
+  async downloadRawFile(repoUrl: string, filePath: string, branch: string): Promise<string> {
+    const { origin, owner, repo } = parseRepoUrl(repoUrl);
+    const rawUrl = `${origin}/${owner}/${repo}/raw/${encodeURIComponent(branch)}/${filePath}`;
+    const headers: Record<string, string> = { "User-Agent": "PVEScripts-Local/1.0" };
+    const token = process.env.GITEA_TOKEN ?? process.env.GIT_TOKEN;
+    if (token) headers.Authorization = `token ${token}`;
+
+    const response = await fetch(rawUrl, { headers });
+    if (!response.ok) {
+      throw new Error(`Failed to download ${filePath} from custom Git server (${response.status}).`);
+    }
+    return response.text();
+  }
+}
diff --git a/src/server/lib/gitProvider/github.ts b/src/server/lib/gitProvider/github.ts
new file mode 100644
index 0000000..5a08aaa
--- /dev/null
+++ b/src/server/lib/gitProvider/github.ts
@@ -0,0 +1,60 @@
+import type { DirEntry, GitProvider } from './types';
+import { parseRepoUrl } from '../repositoryUrlValidation';
+
+export class GitHubProvider implements GitProvider {
+  async listDirectory(repoUrl: string, path: string, branch: string): Promise<DirEntry[]> {
+    const { owner, repo } = parseRepoUrl(repoUrl);
+    const apiUrl = `https://api.github.com/repos/${owner}/${repo}/contents/${path}?ref=${encodeURIComponent(branch)}`;
+    const headers: Record<string, string> = {
+      Accept: 'application/vnd.github.v3+json',
+      'User-Agent': 'PVEScripts-Local/1.0',
+    };
+    const token = process.env.GITHUB_TOKEN;
+    if (token) headers.Authorization = `token ${token}`;
+
+    const response = await fetch(apiUrl, { headers });
+    if (!response.ok) {
+      if (response.status === 403) {
+        const err = new Error(
+          `GitHub API rate limit exceeded. Consider setting GITHUB_TOKEN. Status: ${response.status} ${response.statusText}`
+        );
+        (err as Error & { name: string }).name = 'RateLimitError';
+        throw err;
+      }
+      throw new Error(`GitHub API error: ${response.status} ${response.statusText}`);
+    }
+
+    const data = (await response.json()) as { type: string; name: string; path: string }[];
+    if (!Array.isArray(data)) {
+      throw new Error('GitHub API returned unexpected response');
+    }
+    return data.map((item) => ({
+      name: item.name,
+      path: item.path,
+      type: item.type === 'dir' ? ('dir' as const) : ('file' as const),
+    }));
+  }
+
+  async downloadRawFile(repoUrl: string, filePath: string, branch: string): Promise<string> {
+    const { owner, repo } = parseRepoUrl(repoUrl);
+    const rawUrl = `https://raw.githubusercontent.com/${owner}/${repo}/${encodeURIComponent(branch)}/${filePath}`;
+    const headers: Record<string, string> = {
+      'User-Agent': 'PVEScripts-Local/1.0',
+    };
+    const token = process.env.GITHUB_TOKEN;
+    if (token) headers.Authorization = `token ${token}`;
+
+    const response = await fetch(rawUrl, { headers });
+    if (!response.ok) {
+      if (response.status === 403) {
+        const err = new Error(
+          `GitHub rate limit exceeded while downloading ${filePath}. Consider setting GITHUB_TOKEN.`
+        );
+        (err as Error & { name: string }).name = 'RateLimitError';
+        throw err;
+      }
+      throw new Error(`Failed to download ${filePath}: ${response.status} ${response.statusText}`);
+    }
+    return response.text();
+  }
+}
diff --git a/src/server/lib/gitProvider/gitlab.ts b/src/server/lib/gitProvider/gitlab.ts
new file mode 100644
index 0000000..089b3c5
--- /dev/null
+++ b/src/server/lib/gitProvider/gitlab.ts
@@ -0,0 +1,58 @@
+import type { DirEntry, GitProvider } from './types';
+import { parseRepoUrl } from '../repositoryUrlValidation';
+
+export class GitLabProvider implements GitProvider {
+  private getBaseUrl(repoUrl: string): string {
+    const { origin } = parseRepoUrl(repoUrl);
+    return origin;
+  }
+
+  private getProjectId(repoUrl: string): string {
+    const { owner, repo } = parseRepoUrl(repoUrl);
+    return encodeURIComponent(`${owner}/${repo}`);
+  }
+
+  async listDirectory(repoUrl: string, path: string, branch: string): Promise<DirEntry[]> {
+    const baseUrl = this.getBaseUrl(repoUrl);
+    const projectId = this.getProjectId(repoUrl);
+    const apiUrl = `${baseUrl}/api/v4/projects/${projectId}/repository/tree?path=${encodeURIComponent(path)}&ref=${encodeURIComponent(branch)}&per_page=100`;
+    const headers: Record<string, string> = {
+      'User-Agent': 'PVEScripts-Local/1.0',
+    };
+    const token = process.env.GITLAB_TOKEN;
+    if (token) headers['PRIVATE-TOKEN'] = token;
+
+    const response = await fetch(apiUrl, { headers });
+    if (!response.ok) {
+      throw new Error(`GitLab API error: ${response.status} ${response.statusText}`);
+    }
+
+    const data = (await response.json()) as { type: string; name: string; path: string }[];
+    if (!Array.isArray(data)) {
+      throw new Error('GitLab API returned unexpected response');
+    }
+    return data.map((item) => ({
+      name: item.name,
+      path: item.path,
+      type: item.type === 'tree' ? ('dir' as const) : ('file' as const),
+    }));
+  }
+
+  async downloadRawFile(repoUrl: string, filePath: string, branch: string): Promise<string> {
+    const baseUrl = this.getBaseUrl(repoUrl);
+    const projectId = this.getProjectId(repoUrl);
+    const encodedPath = encodeURIComponent(filePath);
+    const rawUrl = `${baseUrl}/api/v4/projects/${projectId}/repository/files/${encodedPath}/raw?ref=${encodeURIComponent(branch)}`;
+    const headers: Record<string, string> = {
+      'User-Agent': 'PVEScripts-Local/1.0',
+    };
+    const token = process.env.GITLAB_TOKEN;
+    if (token) headers['PRIVATE-TOKEN'] = token;
+
+    const response = await fetch(rawUrl, { headers });
+    if (!response.ok) {
+      throw new Error(`Failed to download ${filePath}: ${response.status} ${response.statusText}`);
+    }
+    return response.text();
+  }
+}
diff --git a/src/server/lib/gitProvider/index.js b/src/server/lib/gitProvider/index.js
new file mode 100644
index 0000000..24c6c60
--- /dev/null
+++ b/src/server/lib/gitProvider/index.js
@@ -0,0 +1 @@
+export { listDirectory, downloadRawFile, getRepoProvider } from "./index.ts";
diff --git a/src/server/lib/gitProvider/index.ts b/src/server/lib/gitProvider/index.ts
new file mode 100644
index 0000000..493e70b
--- /dev/null
+++ b/src/server/lib/gitProvider/index.ts
@@ -0,0 +1,28 @@
+import type { DirEntry, GitProvider } from "./types";
+import { getRepoProvider } from "../repositoryUrlValidation";
+import { GitHubProvider } from "./github";
+import { GitLabProvider } from "./gitlab";
+import { BitbucketProvider } from "./bitbucket";
+import { CustomProvider } from "./custom";
+
+const providers: Record<string, GitProvider> = {
+  github: new GitHubProvider(),
+  gitlab: new GitLabProvider(),
+  bitbucket: new BitbucketProvider(),
+  custom: new CustomProvider(),
+};
+
+export type { DirEntry, GitProvider };
+export { getRepoProvider };
+
+export function getGitProvider(repoUrl: string): GitProvider {
+  return providers[getRepoProvider(repoUrl)]!;
+}
+
+export async function listDirectory(repoUrl: string, path: string, branch: string): Promise<DirEntry[]> {
+  return getGitProvider(repoUrl).listDirectory(repoUrl, path, branch);
+}
+
+export async function downloadRawFile(repoUrl: string, filePath: string, branch: string): Promise<string> {
+  return getGitProvider(repoUrl).downloadRawFile(repoUrl, filePath, branch);
+}
diff --git a/src/server/lib/gitProvider/types.ts b/src/server/lib/gitProvider/types.ts
new file mode 100644
index 0000000..7d16df5
--- /dev/null
+++ b/src/server/lib/gitProvider/types.ts
@@ -0,0 +1,14 @@
+/**
+ * Git provider interface for listing and downloading repository files.
+ */
+
+export type DirEntry = {
+  name: string;
+  path: string;
+  type: 'file' | 'dir';
+};
+
+export interface GitProvider {
+  listDirectory(repoUrl: string, path: string, branch: string): Promise<DirEntry[]>;
+  downloadRawFile(repoUrl: string, filePath: string, branch: string): Promise<string>;
+}
diff --git a/src/server/lib/repositoryUrlValidation.js b/src/server/lib/repositoryUrlValidation.js
new file mode 100644
index 0000000..f145fa6
--- /dev/null
+++ b/src/server/lib/repositoryUrlValidation.js
@@ -0,0 +1,37 @@
+/**
+ * Repository URL validation (JS mirror for server.js).
+ */
+const VALID_REPO_URL =
+  /^(https?:\/\/)(github\.com|gitlab\.com|bitbucket\.org|[^/]+)\/[^/]+\/[^/]+$/;
+
+export const REPO_URL_ERROR_MESSAGE =
+  'Invalid repository URL. Supported: GitHub, GitLab, Bitbucket, and custom Git servers (e.g. https://host/owner/repo).';
+
+export function isValidRepositoryUrl(url) {
+  if (typeof url !== 'string' || !url.trim()) return false;
+  return VALID_REPO_URL.test(url.trim());
+}
+
+export function getRepoProvider(url) {
+  if (!isValidRepositoryUrl(url)) throw new Error(REPO_URL_ERROR_MESSAGE);
+  const normalized = url.trim().toLowerCase();
+  if (normalized.includes('github.com')) return 'github';
+  if (normalized.includes('gitlab.com')) return 'gitlab';
+  if (normalized.includes('bitbucket.org')) return 'bitbucket';
+  return 'custom';
+}
+
+export function parseRepoUrl(url) {
+  if (!isValidRepositoryUrl(url)) throw new Error(REPO_URL_ERROR_MESSAGE);
+  try {
+    const u = new URL(url.trim());
+    const pathParts = u.pathname.replace(/^\/+/, '').replace(/\.git\/?$/, '').split('/');
+    return {
+      origin: u.origin,
+      owner: pathParts[0] ?? '',
+      repo: pathParts[1] ?? '',
+    };
+  } catch {
+    throw new Error(REPO_URL_ERROR_MESSAGE);
+  }
+}
diff --git a/src/server/lib/repositoryUrlValidation.ts b/src/server/lib/repositoryUrlValidation.ts
new file mode 100644
index 0000000..36479b5
--- /dev/null
+++ b/src/server/lib/repositoryUrlValidation.ts
@@ -0,0 +1,57 @@
+/**
+ * Repository URL validation and provider detection.
+ * Supports GitHub, GitLab, Bitbucket, and custom Git servers.
+ */
+
+const VALID_REPO_URL =
+  /^(https?:\/\/)(github\.com|gitlab\.com|bitbucket\.org|[^/]+)\/[^/]+\/[^/]+$/;
+
+export const REPO_URL_ERROR_MESSAGE =
+  'Invalid repository URL. Supported: GitHub, GitLab, Bitbucket, and custom Git servers (e.g. https://host/owner/repo).';
+
+export type RepoProvider = 'github' | 'gitlab' | 'bitbucket' | 'custom';
+
+/**
+ * Check if a string is a valid repository URL (format only).
+ */
+export function isValidRepositoryUrl(url: string): boolean {
+  if (typeof url !== 'string' || !url.trim()) return false;
+  return VALID_REPO_URL.test(url.trim());
+}
+
+/**
+ * Detect the Git provider from a repository URL.
+ */
+export function getRepoProvider(url: string): RepoProvider {
+  if (!isValidRepositoryUrl(url)) {
+    throw new Error(REPO_URL_ERROR_MESSAGE);
+  }
+  const normalized = url.trim().toLowerCase();
+  if (normalized.includes('github.com')) return 'github';
+  if (normalized.includes('gitlab.com')) return 'gitlab';
+  if (normalized.includes('bitbucket.org')) return 'bitbucket';
+  return 'custom';
+}
+
+/**
+ * Parse owner and repo from a repository URL (path segments).
+ * Works for GitHub, GitLab, Bitbucket, and custom (host/owner/repo).
+ */
+export function parseRepoUrl(url: string): { origin: string; owner: string; repo: string } {
+  if (!isValidRepositoryUrl(url)) {
+    throw new Error(REPO_URL_ERROR_MESSAGE);
+  }
+  try {
+    const u = new URL(url.trim());
+    const pathParts = u.pathname.replace(/^\/+/, '').replace(/\.git\/?$/, '').split('/');
+    const owner = pathParts[0] ?? '';
+    const repo = pathParts[1] ?? '';
+    return {
+      origin: u.origin,
+      owner,
+      repo,
+    };
+  } catch {
+    throw new Error(REPO_URL_ERROR_MESSAGE);
+  }
+}
diff --git a/src/server/services/githubJsonService.js b/src/server/services/githubJsonService.js
index da5f53b..519d526 100644
--- a/src/server/services/githubJsonService.js
+++ b/src/server/services/githubJsonService.js
@@ -2,6 +2,7 @@
 import { writeFile, mkdir, readdir, readFile } from 'fs/promises';
 import { join } from 'path';
 import { repositoryService } from './repositoryService.js';
+import { listDirectory, downloadRawFile } from '../lib/gitProvider/index.js';
 
 // Get environment variables
 const getEnv = () => ({
@@ -28,76 +29,9 @@ class GitHubJsonService {
     }
   }
 
-  getBaseUrl(repoUrl) {
-    const urlMatch = /github\.com\/([^\/]+)\/([^\/]+)/.exec(repoUrl);
-    if (!urlMatch) {
-      throw new Error(`Invalid GitHub repository URL: ${repoUrl}`);
-    }
-    
-    const [, owner, repo] = urlMatch;
-    return `https://api.github.com/repos/${owner}/${repo}`;
-  }
-
-  extractRepoPath(repoUrl) {
-    const match = /github\.com\/([^\/]+)\/([^\/]+)/.exec(repoUrl);
-    if (!match) {
-      throw new Error('Invalid GitHub repository URL');
-    }
-    return `${match[1]}/${match[2]}`;
-  }
-
-  async fetchFromGitHub(repoUrl, endpoint) {
-    const baseUrl = this.getBaseUrl(repoUrl);
-    const env = getEnv();
-    
-    const headers = {
-      'Accept': 'application/vnd.github.v3+json',
-      'User-Agent': 'PVEScripts-Local/1.0',
-    };
-    
-    if (env.GITHUB_TOKEN) {
-      headers.Authorization = `token ${env.GITHUB_TOKEN}`;
-    }
-    
-    const response = await fetch(`${baseUrl}${endpoint}`, { headers });
-
-    if (!response.ok) {
-      if (response.status === 403) {
-        const error = new Error(`GitHub API rate limit exceeded. Consider setting GITHUB_TOKEN for higher limits. Status: ${response.status} ${response.statusText}`);
-        error.name = 'RateLimitError';
-        throw error;
-      }
-      throw new Error(`GitHub API error: ${response.status} ${response.statusText}`);
-    }
-
-    return response.json();
-  }
-
   async downloadJsonFile(repoUrl, filePath) {
     this.initializeConfig();
-    const repoPath = this.extractRepoPath(repoUrl);
-    const rawUrl = `https://raw.githubusercontent.com/${repoPath}/${this.branch}/${filePath}`;
-    const env = getEnv();
-    
-    const headers = {
-      'User-Agent': 'PVEScripts-Local/1.0',
-    };
-    
-    if (env.GITHUB_TOKEN) {
-      headers.Authorization = `token ${env.GITHUB_TOKEN}`;
-    }
-    
-    const response = await fetch(rawUrl, { headers });
-    if (!response.ok) {
-      if (response.status === 403) {
-        const error = new Error(`GitHub rate limit exceeded while downloading ${filePath}. Consider setting GITHUB_TOKEN for higher limits.`);
-        error.name = 'RateLimitError';
-        throw error;
-      }
-      throw new Error(`Failed to download ${filePath}: ${response.status} ${response.statusText}`);
-    }
-
-    const content = await response.text();
+    const content = await downloadRawFile(repoUrl, filePath, this.branch);
     const script = JSON.parse(content);
     script.repository_url = repoUrl;
     return script;
@@ -105,16 +39,13 @@ class GitHubJsonService {
 
   async getJsonFiles(repoUrl) {
     this.initializeConfig();
-    
     try {
-      const files = await this.fetchFromGitHub(
-        repoUrl,
-        `/contents/${this.jsonFolder}?ref=${this.branch}`
-      );
-      
-      return files.filter(file => file.name.endsWith('.json'));
+      const entries = await listDirectory(repoUrl, this.jsonFolder, this.branch);
+      return entries
+        .filter((e) => e.type === 'file' && e.name.endsWith('.json'))
+        .map((e) => ({ name: e.name, path: e.path }));
     } catch (error) {
-      console.error(`Error fetching JSON files from GitHub (${repoUrl}):`, error);
+      console.error(`Error fetching JSON files from repository (${repoUrl}):`, error);
       throw new Error(`Failed to fetch script files from repository: ${repoUrl}`);
     }
   }
diff --git a/src/server/services/githubJsonService.ts b/src/server/services/githubJsonService.ts
index b70b3d6..64da8a7 100644
--- a/src/server/services/githubJsonService.ts
+++ b/src/server/services/githubJsonService.ts
@@ -3,6 +3,7 @@ import { join } from 'path';
 import { env } from '../../env.js';
 import type { Script, ScriptCard, GitHubFile } from '../../types/script';
 import { repositoryService } from './repositoryService';
+import { listDirectory, downloadRawFile } from '~/server/lib/gitProvider';
 
 export class GitHubJsonService {
   private branch: string | null = null;
@@ -22,96 +23,24 @@ export class GitHubJsonService {
     }
   }
 
-  private getBaseUrl(repoUrl: string): string {
-    const urlMatch = /github\.com\/([^\/]+)\/([^\/]+)/.exec(repoUrl);
-    if (!urlMatch) {
-      throw new Error(`Invalid GitHub repository URL: ${repoUrl}`);
-    }
-    
-    const [, owner, repo] = urlMatch;
-    return `https://api.github.com/repos/${owner}/${repo}`;
-  }
-
-  private extractRepoPath(repoUrl: string): string {
-    const match = /github\.com\/([^\/]+)\/([^\/]+)/.exec(repoUrl);
-    if (!match) {
-      throw new Error('Invalid GitHub repository URL');
-    }
-    return `${match[1]}/${match[2]}`;
-  }
-
-  private async fetchFromGitHub<T>(repoUrl: string, endpoint: string): Promise<T> {
-    const baseUrl = this.getBaseUrl(repoUrl);
-    
-    const headers: HeadersInit = {
-      'Accept': 'application/vnd.github.v3+json',
-      'User-Agent': 'PVEScripts-Local/1.0',
-    };
-    
-    // Add GitHub token authentication if available
-    if (env.GITHUB_TOKEN) {
-      headers.Authorization = `token ${env.GITHUB_TOKEN}`;
-    }
-    
-    const response = await fetch(`${baseUrl}${endpoint}`, { headers });
-
-    if (!response.ok) {
-      if (response.status === 403) {
-        const error = new Error(`GitHub API rate limit exceeded. Consider setting GITHUB_TOKEN for higher limits. Status: ${response.status} ${response.statusText}`);
-        error.name = 'RateLimitError';
-        throw error;
-      }
-      throw new Error(`GitHub API error: ${response.status} ${response.statusText}`);
-    }
-
-    const data = await response.json();
-    return data as T;
-  }
-
   private async downloadJsonFile(repoUrl: string, filePath: string): Promise<Script> {
     this.initializeConfig();
-    const repoPath = this.extractRepoPath(repoUrl);
-    const rawUrl = `https://raw.githubusercontent.com/${repoPath}/${this.branch!}/${filePath}`;
-    
-    const headers: HeadersInit = {
-      'User-Agent': 'PVEScripts-Local/1.0',
-    };
-    
-    // Add GitHub token authentication if available
-    if (env.GITHUB_TOKEN) {
-      headers.Authorization = `token ${env.GITHUB_TOKEN}`;
-    }
-    
-    const response = await fetch(rawUrl, { headers });
-    if (!response.ok) {
-      if (response.status === 403) {
-        const error = new Error(`GitHub rate limit exceeded while downloading ${filePath}. Consider setting GITHUB_TOKEN for higher limits. Status: ${response.status} ${response.statusText}`);
-        error.name = 'RateLimitError';
-        throw error;
-      }
-      throw new Error(`Failed to download ${filePath}: ${response.status} ${response.statusText}`);
-    }
-
-    const content = await response.text();
+    const content = await downloadRawFile(repoUrl, filePath, this.branch!);
     const script = JSON.parse(content) as Script;
-    // Add repository_url to script
     script.repository_url = repoUrl;
     return script;
   }
 
   async getJsonFiles(repoUrl: string): Promise<GitHubFile[]> {
     this.initializeConfig();
-    
     try {
-      const files = await this.fetchFromGitHub<GitHubFile[]>(
-        repoUrl,
-        `/contents/${this.jsonFolder!}?ref=${this.branch!}`
-      );
-      
-      // Filter for JSON files only
-      return files.filter(file => file.name.endsWith('.json'));
+      const entries = await listDirectory(repoUrl, this.jsonFolder!, this.branch!);
+      const files: GitHubFile[] = entries
+        .filter((e) => e.type === 'file' && e.name.endsWith('.json'))
+        .map((e) => ({ name: e.name, path: e.path } as GitHubFile));
+      return files;
     } catch (error) {
-      console.error(`Error fetching JSON files from GitHub (${repoUrl}):`, error);
+      console.error(`Error fetching JSON files from repository (${repoUrl}):`, error);
       throw new Error(`Failed to fetch script files from repository: ${repoUrl}`);
     }
   }
@@ -233,8 +162,7 @@ export class GitHubJsonService {
     try {
       console.log(`Starting JSON sync from repository: ${repoUrl}`);
       
-      // Get file list from GitHub
-      console.log(`Fetching file list from GitHub (${repoUrl})...`);
+      console.log(`Fetching file list from repository (${repoUrl})...`);
       const githubFiles = await this.getJsonFiles(repoUrl);
       console.log(`Found ${githubFiles.length} JSON files in repository ${repoUrl}`);
       
diff --git a/src/server/services/repositoryService.js b/src/server/services/repositoryService.js
index d7a7ac9..1c18143 100644
--- a/src/server/services/repositoryService.js
+++ b/src/server/services/repositoryService.js
@@ -1,5 +1,6 @@
 // JavaScript wrapper for repositoryService (for use with node server.js)
 import { prisma } from '../db.js';
+import { isValidRepositoryUrl, REPO_URL_ERROR_MESSAGE } from '../lib/repositoryUrlValidation.js';
 
 class RepositoryService {
   /**
@@ -89,9 +90,8 @@ class RepositoryService {
    * Create a new repository
    */
   async createRepository(data) {
-    // Validate GitHub URL
-    if (!data.url.match(/^https:\/\/github\.com\/[^\/]+\/[^\/]+$/)) {
-      throw new Error('Invalid GitHub repository URL. Format: https://github.com/owner/repo');
+    if (!isValidRepositoryUrl(data.url)) {
+      throw new Error(REPO_URL_ERROR_MESSAGE);
     }
 
     // Check for duplicates
@@ -122,10 +122,9 @@ class RepositoryService {
    * Update repository
    */
   async updateRepository(id, data) {
-    // If updating URL, validate it
     if (data.url) {
-      if (!data.url.match(/^https:\/\/github\.com\/[^\/]+\/[^\/]+$/)) {
-        throw new Error('Invalid GitHub repository URL. Format: https://github.com/owner/repo');
+      if (!isValidRepositoryUrl(data.url)) {
+        throw new Error(REPO_URL_ERROR_MESSAGE);
       }
 
       // Check for duplicates (excluding current repo)
diff --git a/src/server/services/repositoryService.ts b/src/server/services/repositoryService.ts
index c9045dd..b5fed86 100644
--- a/src/server/services/repositoryService.ts
+++ b/src/server/services/repositoryService.ts
@@ -1,5 +1,5 @@
-/* eslint-disable @typescript-eslint/prefer-regexp-exec */
 import { prisma } from '../db';
+import { isValidRepositoryUrl, REPO_URL_ERROR_MESSAGE } from '../lib/repositoryUrlValidation';
 
 export class RepositoryService {
   /**
@@ -93,9 +93,8 @@ export class RepositoryService {
     enabled?: boolean;
     priority?: number;
   }) {
-    // Validate GitHub URL
-    if (!data.url.match(/^https:\/\/github\.com\/[^\/]+\/[^\/]+$/)) {
-      throw new Error('Invalid GitHub repository URL. Format: https://github.com/owner/repo');
+    if (!isValidRepositoryUrl(data.url)) {
+      throw new Error(REPO_URL_ERROR_MESSAGE);
     }
 
     // Check for duplicates
@@ -130,10 +129,9 @@ export class RepositoryService {
     url?: string;
     priority?: number;
   }) {
-    // If updating URL, validate it
     if (data.url) {
-      if (!data.url.match(/^https:\/\/github\.com\/[^\/]+\/[^\/]+$/)) {
-        throw new Error('Invalid GitHub repository URL. Format: https://github.com/owner/repo');
+      if (!isValidRepositoryUrl(data.url)) {
+        throw new Error(REPO_URL_ERROR_MESSAGE);
       }
 
       // Check for duplicates (excluding current repo)
diff --git a/src/server/services/scriptDownloader.js b/src/server/services/scriptDownloader.js
index 25436dd..e3d0002 100644
--- a/src/server/services/scriptDownloader.js
+++ b/src/server/services/scriptDownloader.js
@@ -1,6 +1,7 @@
 // Real JavaScript implementation for script downloading
 import { join } from 'path';
 import { writeFile, mkdir, access, readFile, unlink } from 'fs/promises';
+import { downloadRawFile } from '../lib/gitProvider/index.js';
 
 export class ScriptDownloaderService {
   constructor() {
@@ -82,51 +83,18 @@ export class ScriptDownloaderService {
   }
 
   /**
-   * Extract repository path from GitHub URL
-   * @param {string} repoUrl - The GitHub repository URL
-   * @returns {string}
-   */
-  extractRepoPath(repoUrl) {
-    const match = /github\.com\/([^\/]+)\/([^\/]+)/.exec(repoUrl);
-    if (!match) {
-      throw new Error(`Invalid GitHub repository URL: ${repoUrl}`);
-    }
-    return `${match[1]}/${match[2]}`;
-  }
-
-  /**
-   * Download a file from GitHub
-   * @param {string} repoUrl - The GitHub repository URL
+   * Download a file from the repository (GitHub, GitLab, Bitbucket, or custom)
+   * @param {string} repoUrl - The repository URL
    * @param {string} filePath - The file path within the repository
    * @param {string} [branch] - The branch to download from
    * @returns {Promise<string>}
    */
-  async downloadFileFromGitHub(repoUrl, filePath, branch = 'main') {
-    this.initializeConfig();
+  async downloadFileFromRepo(repoUrl, filePath, branch = 'main') {
     if (!repoUrl) {
       throw new Error('Repository URL is not set');
     }
-
-    const repoPath = this.extractRepoPath(repoUrl);
-    const url = `https://raw.githubusercontent.com/${repoPath}/${branch}/${filePath}`;
-    
-    /** @type {Record<string, string>} */
-    const headers = {
-      'User-Agent': 'PVEScripts-Local/1.0',
-    };
-    
-    // Add GitHub token authentication if available
-    if (process.env.GITHUB_TOKEN) {
-      headers.Authorization = `token ${process.env.GITHUB_TOKEN}`;
-    }
-    
-    console.log(`Downloading from GitHub: ${url}`);
-    const response = await fetch(url, { headers });
-    if (!response.ok) {
-      throw new Error(`Failed to download ${filePath} from ${repoUrl}: ${response.status} ${response.statusText}`);
-    }
-
-    return response.text();
+    console.log(`Downloading from repository: ${repoUrl} (${filePath})`);
+    return downloadRawFile(repoUrl, filePath, branch);
   }
 
   /**
@@ -184,9 +152,8 @@ export class ScriptDownloaderService {
             const fileName = scriptPath.split('/').pop();
             
             if (fileName) {
-              // Download from GitHub using the script's repository URL
               console.log(`Downloading script file: ${scriptPath} from ${repoUrl}`);
-              const content = await this.downloadFileFromGitHub(repoUrl, scriptPath, branch);
+              const content = await this.downloadFileFromRepo(repoUrl, scriptPath, branch);
               
               // Determine target directory based on script path
               let targetDir;
@@ -250,7 +217,7 @@ export class ScriptDownloaderService {
         const installScriptName = `${script.slug}-install.sh`;
         try {
           console.log(`Downloading install script: install/${installScriptName} from ${repoUrl}`);
-          const installContent = await this.downloadFileFromGitHub(repoUrl, `install/${installScriptName}`, branch);
+          const installContent = await this.downloadFileFromRepo(repoUrl, `install/${installScriptName}`, branch);
           const localInstallPath = join(this.scriptsDirectory, 'install', installScriptName);
           await writeFile(localInstallPath, installContent, 'utf-8');
           files.push(`install/${installScriptName}`);
@@ -274,7 +241,7 @@ export class ScriptDownloaderService {
         const alpineInstallScriptName = `alpine-${script.slug}-install.sh`;
         try {
           console.log(`[${script.slug}] Downloading alpine install script: install/${alpineInstallScriptName} from ${repoUrl}`);
-          const alpineInstallContent = await this.downloadFileFromGitHub(repoUrl, `install/${alpineInstallScriptName}`, branch);
+          const alpineInstallContent = await this.downloadFileFromRepo(repoUrl, `install/${alpineInstallScriptName}`, branch);
           const localAlpineInstallPath = join(this.scriptsDirectory, 'install', alpineInstallScriptName);
           await writeFile(localAlpineInstallPath, alpineInstallContent, 'utf-8');
           files.push(`install/${alpineInstallScriptName}`);
@@ -681,7 +648,7 @@ export class ScriptDownloaderService {
       console.log(`[Comparison] Local file size: ${localContent.length} bytes`);
       
       // Download remote content from the script's repository
-      const remoteContent = await this.downloadFileFromGitHub(repoUrl, remotePath, branch);
+      const remoteContent = await this.downloadFileFromRepo(repoUrl, remotePath, branch);
       console.log(`[Comparison] Remote file size: ${remoteContent.length} bytes`);
       
       // Apply modification only for CT scripts, not for other script types
@@ -739,7 +706,7 @@ export class ScriptDownloaderService {
             // Find the corresponding script path in install_methods
             const method = script.install_methods?.find(m => m.script === filePath);
             if (method?.script) {
-              const downloadedContent = await this.downloadFileFromGitHub(repoUrl, method.script, branch);
+              const downloadedContent = await this.downloadFileFromRepo(repoUrl, method.script, branch);
               remoteContent = this.modifyScriptContent(downloadedContent);
             }
           } catch {
@@ -756,7 +723,7 @@ export class ScriptDownloaderService {
         }
 
         try {
-          remoteContent = await this.downloadFileFromGitHub(repoUrl, filePath, branch);
+          remoteContent = await this.downloadFileFromRepo(repoUrl, filePath, branch);
         } catch {
           // Error downloading remote install script
         }