One folder. Every device.

A development server in the cloud, open on your iPad, your Mac and any browser. The files never move.

An iPad with a keyboard on a desk at night, with map.ts from the Trailhead project open in the Serin Cloud IDE editor and its dev server running in the terminal.

The files never move. There is nothing to push, pull or sync. Save on your iPad and it’s already on the server, ready for your Mac, a browser or an agent running in the terminal.

Trailhead running in the Preview tab: a 3D map of Mount Si, with a finger on the elevation chart marking the same spot on the trail. — Live preview

The Changes view with the diff for map.ts open. — Source control

New workspace

Pick a starter. Next.js, Vite + React, Website, Astro blog, Express API or FastAPI. It installs, starts, and opens in the preview in seconds.

One tap each

Only the tools you pick. Claude Code, Codex, Gemini CLI, Copilot, Cursor, Grok Build, Aider, Bun, Deno, Python, Go, Rust, and the CLIs for Vercel, Fly.io, Supabase and Neon.

Check a box and it installs on your server’s disk. It’s there the next time you open it. AI tools sign in with your own account.

Works with

Claude Code
Codex
Gemini CLI
GitHub Copilot
Cursor
Grok Build
Qwen Code

TypeScript
Python^™
Rust
Vercel
Netlify
Cloudflare
Fly.io
Supabase
Firebase
Neon

Agents

You see every change first. An agent’s edit arrives as a diff to apply or deny. Its questions reach you as a notification, and a command is always shown before you approve it.

Claude Code proposes an edit to src/cart.ts: a diff with one line removed and two added, and Deny and Apply edit buttons. The sidebar shows its question: Which payment provider should checkout use? — An edit, waiting for you

Compare: two agents' worktrees, checkout-1 and checkout-2, side by side with the files each changed and a Merge into main button under each. — Two agents, compared

Parallel agentsEach works in its own worktree. Compare them side by side and merge the one you want with one tap.
Ask an agent to mergeWhen a merge conflicts, hand the file to an agent. You approve what it proposes.
CheckpointsEvery agent turn is saved apart from your Git history, so you can undo one turn.
Claude Code and Gemini CLIBoth connect to Serin as their IDE. Their diffs open in the app for you to approve.
Siri and Shortcuts“Ask Serin” starts an agent on your server. “What Needs Me” lists the ones waiting on you.
Scheduled agentsHourly, daily, on weekdays, or from a webhook URL. Set them up at serin.work.

In the editor

More room to work. Split editors, a Markdown preview beside its source, Problems with Check Project, files dragged in from Files and Photos, and environment variables you can hide from agents.

Publish it. A workspace’s build goes live at its own serin.work address and stays up while the server sleeps. Every deploy is kept, so you can roll back.

https://my-site.serin.work

serin.work, built in. Your Drive, every server and the whole day’s activity open inside the app. One toggle next to the sidebar button.

See serin.work

Have your own computer? Run the Serin server on your Mac or Linux computer and pair the app with a one-time code.

$ npm run service -- install

Coming to iPad first.

Serin Cloud IDE is in development. The Mac app follows.