FredrinmacOS, Windows & Linux
Run UNLIMITED agents in parallel.
The all-in-one platform that ships like a team of 100 🚀.
Built for vibe coders, FDEs, and teams who demand high throughput.
Used by developers from
AWS
Google
Microsoft
Tesla
Corgi
SeatGeek
Whatnot
and more
How it works
Each ticket gets a plan, a build, and a PR you review.
- 01
Write the ticket
A sentence is enough. Fredrin drafts the plan and the acceptance checks. Edit them, or run it as written.
- 02
Run it
The ticket gets a branch, a real git worktree, and its own agent session. The agent builds, runs those checks, and rebases when main moves ahead.
- 03
Review the diff
Finished work lands in Review with the diff and the PR, the conflict fix as its own diff. Ship it, or send it back.
Interactive demo
Try it now
Open a ticket, start building, and watch an agent take it from plan to diff. Click around below on a desktop screen.
One window for the whole loop
The board that runs the agents, the machines that host them, and every surface you review the work in.
What you keep
Control, not just parallelism: three facts about what an agent can and can’t do to your repository.
Every ticket gets its own branch and a real git worktree.
Agents never see each other's working copy, and never touch your main branch. Isolation is filesystem-level, not prompt-level.
Agents open pull requests. They never merge.
Merging is the human's gate; the agent never crosses it. Nothing reaches your base branch until you press the button.
A red check is reported, never hidden.
Each Worker runs the ticket's acceptance checks as its final act and reports real exit codes, never assumed. The pull request opens either way, with the failing checks written into it, so you review the red instead of hunting for work that never surfaced.
We ship Fredrin from a Fredrin board
Every change in the changelog was written by agents on our own board and merged after one human review.
- days shipped in a row
- 29
- changes merged
- 1582
- person reviewing
- 1
Counted from the changelog on this site. The streak runs 6 July to .
How Fredrin compares to the alternatives
What it takes to keep a board of agents moving, and who covers it.
- manual (partial)Run many agents at once
- you wire it (partial)Isolated git worktree per ticket
- Not supportedPlan + agent + diff + PR on one ticket
- your tokens (partial)Flat price, bring your own model (no metered API)
- Not supportedRun many agents at once
- Not supportedIsolated git worktree per ticket
- across tools (partial)Plan + agent + diff + PR on one ticket
- per-seat + metered (partial)Flat price, bring your own model (no metered API)
- Yes, built inRun many agents at once
- Yes, built inIsolated git worktree per ticket
- Yes, built inPlan + agent + diff + PR on one ticket
- Yes, built inFlat price, bring your own model (no metered API)
✓ built-in · partial = manual, or split across tools · ✕ not supported
Get an invite
Fredrin is invite-only while we scale the beta. Leave your email and we’ll send a download link for macOS, Windows or Linux.