Leftoff
WTF was I working on?
Leftoff keeps track of every Claude Code and Codex session you have open. When one goes quiet, it writes down where you left off, so ten tabs later you still know what each one was doing.
curl -fsSL https://leftoff.dev/install | shFree. Runs on your Mac. Plain Markdown in ~/checkpoints.
Or install with npm · See how it works
Claim yourname.leftoff.dev and your board goes with you, end-to-end encrypted. Free while in beta.
Type “what was I doing in the api last week?” on a project and get a short answer, with numbered sources that open the sessions, checkpoints and digests it used. Ask about a whole project, one session, or up to four at once.
Read-only: a separate Claude Code run on your Mac reads your notes, transcripts and git. It never types into your sessions. Like the answer? Start a session from this.
Watch a running session and send it the next prompt from the board or your phone. It arrives in the terminal as Claude’s next prompt, and its permission asks land in Needs you.
Start one with leftoff live, or from the board.
Been away? A session’s Catch me up gives you its goal, what happened since you last looked, and what’s next. Or get one recap of every repo since Friday.
Start a session from the board: pick a Mac and a repo, type the first prompt, and keep talking to it in Live.
From your phone or another Mac, it waits for a yes on that Mac unless you’ve allowed it there.
Codex too. Codex sessions show up on the board with a badge, with checkpoints, to-dos, the digest and Resume. Live and New session start Claude Code.
When a session sits idle, Leftoff writes a short checkpoint: what it was Doing, where it Stopped, and what's Next. Every checkpoint also keeps the command to resume that exact session.
Want one right now? Type /cp in the session.
When a session stops for a permission prompt or a question, it jumps to the top of the board. Answer right there: Allow once, Allow for this session, or Deny with a note. Or hit Go and land in the right terminal tab.
Nothing is ever auto-allowed, and the terminal still works as usual. Answering from the board is off for other devices unless you turn it on.
Sessions hand steps back to you: “add these DNS records”, “run npm login”. Leftoff catches them and lists them as to-dos, with the commands as Copy buttons.
Next to them: the docs, plans and claude.ai artifacts each session made. Tap a doc to read it, phone included.
Real work spans repos: the API, the app that calls it, the database. Group them into a project and the board filters to it in one tap, every card wears its project, and the digest is grouped by it.
Add a repo from any card's ⋯ menu, or run leftoff project add acme . in it. Every machine sees the same projects.
Press ⌘K and type. Sessions (open or closed), PRs, projects, to-dos, files and actions like Checkpoint now, in one list. Enter opens it.
On your phone it's the search button.
The sessions you already have show up on their own, from every Mac. Pair your iPhone once with a QR code and your board lives at yourname.leftoff.dev. It's end-to-end encrypted: the relay passes along scrambled bytes and never sees your sessions.
No Tailscale, no SSH, no open ports. Nothing to keep open, either: Leftoff runs in the background on each Mac while it's awake. Answer and Go work between your Macs too.
Every morning Leftoff builds a digest of where everything stands, across every repo and project. Read it with your coffee and pick up where you left off.
What shipped lists the PRs you merged and the commits that landed on main.
Local Leftoff: no database, no account, no cloud. Every session and checkpoint is a plain file in a folder you can read, grep, sync or commit. A small background service on your own machine serves the board, and it rebuilds everything from those files when it starts, so a restart loses nothing.
Checkpoints can come from Claude in the session itself (no key needed), or a local model through Ollama or LM Studio.
# ~/checkpoints/sessions/<machine>/…/checkpoints/2026-10-09T214500Z.md --- session_title: auth refactor repo: api branch: auth-refactor --- Doing: moving session tokens to httpOnly cookies Stopped at: refresh endpoint returns 401 in tests Next: fix the cookie path, rerun auth tests Resume: cd ~/src/api && claude --resume 7a1e0b…
/cp prints board links too./cp-park locks the worktree, so Claude Code's exit cleanup can't delete it./cp-name --auto to retitle it from the latest messages.Free forever
Everything above, for personal use on your own Macs, as plain files.
Free beta
Hosted and team features will be paid later
Your board at yourname.leftoff.dev from any phone or browser, end-to-end encrypted.
The Claude Code and Codex transcripts on your Mac, and git in your repos. It writes plain Markdown into ~/checkpoints. It changes nothing in Codex.
Nothing to us. A small service on your Mac (127.0.0.1) serves the board. Checkpoints are written by Claude inside the session, with your normal Claude Code login, or by a local model through Ollama or LM Studio. Ollama Cloud or an Anthropic API key only if you pick one. Ask runs Claude Code on your Mac with your login.
The hosted board at yourname.leftoff.dev is optional and end-to-end encrypted: the relay passes along bytes it can’t read.
None in the app. The only thing it fetches on its own is a daily check for a newer version, which you can turn off. If you use the hosted relay, it counts how many accounts have a Mac connected each day: a number, no content.
Mac-first. The background service also runs on Linux, but Go and Restore open tabs in Mac terminals (Ghostty, iTerm2, Terminal.app). Windows is untested.
Free for personal use on your own Macs, forever. Hosted and team features will be paid. The hosted relay is free during beta, and you'll get notice before that changes.
leftoff uninstall removes its hooks and background service and keeps your ~/checkpoints folder. Add --purge to delete that too.
Run this on your Mac. A two-minute setup installs the Claude Code plugin and starts your board. Needs Node 20+ and Claude Code.
curl -fsSL https://leftoff.dev/install | shOr with npm:
npm i -g @leftoff/cli && leftoff setupWant it on your phone? Short names go first.
No tracking, no spam.