Open-source · agent-native IDE

The IDE where agents do the work.

Cipher is the open, web-native editor built for autonomous coding agents. Fully customizable, self-hostable, and running anywhere Chrome runs — no install required.

See how it works
Prompt
Plan
Generate
Review
Ship
Try
cipher.dev · agent://buildready
passkey.ts
Ready. Describe a feature to build.
planner
idle
coder
idle
tester
idle
Features

One workspace. Every agent.

Cipher rebuilds the editor, terminal, and file tree from scratch for a world where autonomous agents do most of the typing.

Agents, built in

Multi-agent orchestration, tool-use, and sandboxed shells live at the core — not bolted on as a sidebar.

Runs in the browser

Monaco + LSP over WASM, offline via service worker. Open a repo and start shipping in seconds — zero install.

Every panel is a plugin

Drag, split, or replace any surface. Rebuild the editor around your workflow with a simple React plugin API.

Self-host in one command

One Docker command, bring your own models and storage. Your code and your keys never leave your infra.

Ships real PRs

Agents scaffold, edit, test, and open pull requests you review — not throwaway snippets in a chat box.

Open by default

Apache 2.0, auditable, and forkable. No lock-in, no proprietary fork gating the features that matter.

Workflow

From prompt to production.

The whole loop — plan, code, test, ship — happens in one place, with you steering and agents doing the heavy lifting.

01

Describe the change

Type an intent — “add passkey auth” or “migrate to the new API.” No boilerplate, no scaffolding by hand.

02

Agents plan & split work

A planner breaks it down and hands tasks to coding and testing agents that run in parallel, sandboxed shells.

03

Watch it build live

Files stream into the editor as agents work. Step in, redirect, or edit alongside them at any moment.

04

Review a real PR

Cipher opens a pull request with tests and a diff you approve — production-ready, not a throwaway snippet.

Why Cipher

Built in the open, owned by you.

Cipher is early — and open from day one. Instead of asking you to trust a black box, we let you read the source, run it yourself, and keep your code where it belongs.

CapabilityCipherClosed IDEs
Runs fully in the browserYesNo
Self-host in one commandYesNo
Bring your own models & keysYesLimited
Every panel is a pluginYesNo
Multi-agent orchestrationYesSingle assistant
Source-available licenseApache 2.0No
Your code stays on your infraYesNo
Apache 2.0Open source

Every line is auditable and forkable. No proprietary core gating the features that matter.

$0To self-host

Run the full workspace on your own hardware. Pay for hosting only if you want us to run it.

100%Your data

Your repositories, keys, and model calls never route through our servers when self-hosted.

Pricing

Free to self-host. Simple to scale.

Start on open source, upgrade when you want managed agents and team features. No lock-in, ever.

Open Source
$0forever

Self-host with unlimited seats.

  • All editor features
  • Bring your own models
  • Community plugins
  • Apache 2.0 license
ProPopular
$20/ mo

Hosted agents, zero setup.

  • Hosted agent runtime
  • Priority models
  • Cloud workspaces
  • Email support
Team
$60/ seat

For teams shipping together.

  • SSO & audit logs
  • Shared agent memory
  • Role-based access
  • Priority support
Enterprise
Custom

VPC, on-prem, SOC 2, SLAs.

  • On-prem deploy
  • Dedicated infra
  • SOC 2 & compliance
  • White-glove onboarding
Cipher logo

Stop typing boilerplate. Start shipping.

Join the developers building with agents in the open. We're onboarding early access in small batches — claim your spot on the waitlist.