Show HN: ClaudeFS – Give claude.ai access to a local folder, no local process

Developer Vincent Ping has released ClaudeFS, a free browser extension for Chrome and Edge that lets users connect a local folder to claude.ai, enabling Claude to read, search, and edit files directly from the chat without a desktop app, API key, or command line. The extension runs all file operations locally in the browser and requires only a claude.ai account and a Chromium-based browser with Manifest V3 and File System Access API support. ClaudeFS is an independent open-source project not affiliated with Anthropic.

Connect a local folder to claude.ai https://claude.ai . A browser extension MV3 for Chrome and Edge: authorize a folder once, and Claude can read, search, and edit the files in it right from the chat — no desktop app, no API key, no command line. Works on the free claude.ai plan. Prerequisites: a Chromium-based browser Chrome, Edge, etc. with Manifest V3 and File System Access API support, plus a claude.ai https://claude.ai account. Edge recommended : install from the Microsoft Edge Add-ons store https://microsoftedge.microsoft.com/addons/detail/claudefs/mfngoeppdmboplcgllagnnggehdcigna . Chrome / from source: clone or download this repository no build step needed , then load the src/ folder via Developer mode → "Load unpacked". A Chrome Web Store listing is under review — this section will be updated once it's live. - Open claude.ai https://claude.ai . - Click the connect button at the bottom right of the page and pick a local folder. - Ask Claude something like "read xx file" — that's it. Tip: the file tools only appear in Claude's available tool list after it discovers them — if Claude doesn't use the tools at first, rephrase and mention file operations explicitly. All file operations run locally in your browser; the extension itself sends nothing to any server. File content that Claude reads via the tools goes only into your claude.ai conversation — the same as if you had pasted or uploaded it there yourself. Your folder reference is stored only in the browser's local storage IndexedDB . Full policy: PRIVACY.md /vincentping/claudeFS/blob/main/PRIVACY.md . Every write operation write / edit / move / delete, etc. shows a diff confirmation dialog before touching your disk — you review the change and decide whether to approve it. claudeFS is an independent open-source project, not affiliated with or endorsed by Anthropic. Claude is a trademark of Anthropic. MIT — see LICENSE /vincentping/claudeFS/blob/main/LICENSE . 一个支持 Chrome 与 Edge 的浏览器扩展（MV3），让你在 claude.ai https://claude.ai 授权一个本地文件夹后，Claude 能像 agent 一样直接读写该文件夹里的文件——零安装、无 API Key、无命令行，claude.ai 免费版即可使用。 前置条件： 一个支持 Manifest V3 与 File System Access API 的 Chromium 内核浏览器（Chrome、Edge 等），以及一个 claude.ai https://claude.ai 账号。 - Edge（推荐）： 从 Microsoft Edge 扩展商店 https://microsoftedge.microsoft.com/addons/detail/claudefs/mfngoeppdmboplcgllagnnggehdcigna 直接安装。 - Chrome / 源码安装： 克隆或下载本仓库（无需构建），在开发者模式下"加载已解压的扩展程序"，选择 src/ 文件夹。 （Chrome 应用商店版本正在审核中，上架后会更新此处。） - 打开 claude.ai https://claude.ai 。 - 点击页面右下角的连接按钮，选择要授权的本地文件夹。 - 对 Claude 说"读一下 xx 文件"之类的话即可。 提示：文件工具需要 Claude 先检索到，才会出现在它当次对话可用的工具列表里——如果它一开始没用工具，换个更明确提到文件操作的说法再试一次。 所有文件操作都在你本地浏览器完成，扩展自身不向任何服务器传输任何数据；Claude 通过工具读到的文件内容，只会进入你正在使用的 claude.ai 对话（等同于你手动粘贴/上传给 Claude）。你选的文件夹引用仅保存在浏览器本地存储（IndexedDB）中。完整政策见 PRIVACY.md /vincentping/claudeFS/blob/main/PRIVACY.md 。 所有写操作（write / edit / move / delete 等）执行前都会弹出 diff 确认，你可以查看改动内容后再决定是否放行。 本项目并非 Anthropic 官方产品，与 Anthropic 无关联、未获其背书。Claude 是 Anthropic 的商标。 MIT，见 LICENSE /vincentping/claudeFS/blob/main/LICENSE 。