Fredrin | App for Vibe Coders & FDEs Building Demanding Projects

2 min read Original article ↗

macOS, 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

How it works

Each ticket gets a plan, a build, and a PR you review.

  1. 01

    Write the ticket

    A sentence is enough. Fredrin drafts the plan and the acceptance checks. Edit them, or run it as written.

  2. 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.

  3. 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.

Explore all features

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.

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.

✓ 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.