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Alpha — open source, built in the open

The Agentic
Development Environment

Delegate the code. Control the outcome.

SimpleEdit is built around reviewing code agents have written — not writing it yourself. Steer multiple Claude Code sessions across worktrees, inspect diffs, and ship faster.

SimpleEdit [simpleedit]
SimpleEdit IDE showing diff editor with Discuss with Agent popover

Built for the agentic workflow

When you run agents in parallel, your job changes. SimpleEdit is designed for that shift.

Diff-first UI

Commit review and staged change inspection are first-class citizens, not buried in a menu. The moment you click a commit, a side-by-side Monaco diff fills the pane.

Multi-worktree by design

Run separate agents on separate branches simultaneously. Each pane tracks its own worktree with independent editor state — review a diff in one while an agent runs in the other.

Live agent awareness

See which files Claude Code has touched and what it's currently doing — without leaving your review flow. File tree highlights update in real time as the agent works.

Contextual agent interaction

Send questions about a specific commit or diff directly to a Claude terminal, with context pre-filled. Select a line of code and ask the agent to reconsider it — right from the editor.

Multi-worktree workflow

Two agents.
Two branches.
One screen.

SimpleEdit works best with a bare git repository and git worktrees — one per agent session. Open the repo once and get a pane for each branch. The git log, file tree, editor, and terminal are all per-pane.

1
Open a bare repo
SimpleEdit clones any repo into the bare + worktree structure automatically.
2
Spawn agents in terminal tabs
Hit the ✦ Claude button to launch a Claude Code session. Each worktree gets its own terminal.
3
Review and steer
Click commits to see diffs, run an AI review to find bugs, ask Claude about specific code, and decide what ships.
SimpleEdit AI review showing findings alongside a diff, with Claude Code in the terminal
SimpleEdit Tour panel showing AI-generated walkthrough of a commit
AI Code Tour

Understand any commit
in seconds

Click Tour on any commit and Claude narrates the changeset — an overview, then a topic-by-topic walkthrough of every file touched. Streamed live, cached for instant replay.

High-level overview before diving into code

Grouped by topic, not file order

Inline compact diffs alongside the explanation

Cached on disk — revisit without re-running Claude

Contextual agent interaction

Question the diff,
not the codebase

Select any line in the diff, press ⌘I, and ask Claude about it. The commit hash, file, and selected lines are sent as context — no copy-pasting, no context loss.

Route the question to any running Claude Code terminal. The agent sees exactly what you see, so its answer is precise.

SimpleEdit diff editor with Discuss with Agent popover open
SimpleEdit Monaco editor with TypeScript autocomplete dropdown
Editor & LSP

A real editor,
not just a viewer

Monaco Editor under the hood — the same engine as VS Code. LSP-powered diagnostics, hover info, and go-to-definition for TypeScript, JavaScript, CSS, JSON, Rust, Python, and Go.

TypeScript
JavaScript
CSS / SCSS
JSON
Rust
Python
Go
More soon

Try SimpleEdit today

Alpha software — expect rough edges, but the core workflow is solid. We're building SimpleEdit with SimpleEdit, so the sharpest edges get found fast.