# Why Folder

One folder on your Mac, your iPhone and the web, kept with us or in your own Cloudflare, with every version kept and an undo for Claude Code.

One folder on your Mac, your iPhone and the web. Kept with us, or in your own Cloudflare.

## It's Just a Folder

Folder sits in Finder's sidebar and in the Files app, and opens at folder.dev in any browser. Files download when you open them. Drop one on the menu bar icon and its link is on your clipboard.

## With Us, or in Your Cloudflare

Start on ours and move a folder to yours whenever you want.

- On Folder: Sign in with Apple and start. 5 GB free, stored by us in the EU.
- In Your Cloudflare: Your own R2 buckets and your own bill, usually $0. The files never pass through us.

## Nothing Is Lost

Every overwrite and every delete is kept, on the Mac, the iPhone and the web. Each version says who made it, and putting one back keeps the one it replaces. R2 has no history of its own; Folder adds it.

## Agents Work on Something You Can Undo

Before each Claude Code session, Folder copies the project on your Mac, then lists what the session changed for you to keep or put back. ChatGPT and Claude reach only the folders you pick, and ask before they share anything.

## Projects That Don't Choke Dropbox

Add a project that lives in Dropbox to Folder. `node_modules` and the other build folders stay out of Dropbox and Time Machine, and new ones are left out as they appear.

## Try It With 5 GB Free

- [Get Folder for Mac](https://apps.apple.com/app/id6819667588?mt=12&pt=128232389&ct=folder-web)
- [Sign In on the Web →](/signin)

Source: https://folder.dev/why