Drevin — a Windows desktop coding agent

Drevin is a Windows desktop coding agent for working on local projects, running commands and reviewing code changes.

Download Drevin for Windows

Start with one small coding task. Basic planned monthly price: $29. Paid plans are not open yet. The prices below are planned monthly subscriptions, not offers you can buy today.

It works on the machine your code is already on, with the credentials and containers that only live there. You just say what to build.

On your phone?

One short letter a week while I build it · no spam · one click to leave

See the plan →

The difference

From request to a reviewable change.

An illustrative workflow, not a measured comparison with another product. Check the diff and actual test output on your own task.

The usual loop· suggest, then you verify
assistant · suggestion mode
> add rate limiting to the webhook endpoint, like we already do it
thinking… I’ll look at the open file
search "rate limit"
218 matches across 47 files · ranked the top 5
read auth.ts
a limiter — but it guards login, not webhooks
no clear winner. proposing a limiter inline.
ResultPlausible code, wrong layer — an in-memory counter that won’t survive a restart. It compiles, it reads fine, and nobody ran it. You find out in prod.
With drevin· an illustrative workflow
drevin · build
> add rate limiting to the webhook endpoint, like we already do it
first: how is rate limiting already done here?
read_repo "existing rate-limit pattern"
shared limiter in bridge/limits.ts:42, used by 3 sites
write webhook.ts
reused guardAndResolve() · fail-closed, same as the rest
command npm test
check test output · 0 failed
review self-check
no floating waitUntil · callback ownership ok
Shipped · one passThe limiter already existed. drevin found it, reused it in the webhook handler fail-closed, and proved it green before handing anything over — matching how the repo already worked.

Receipts, not logos

No customers yet. Here’s what there is instead.

Historical build-log claims, not revalidated for the current release. These do not establish a comparison win; read the dates and limitations in the linked receipts.

3/3AtCoder problems reported solved in a historical runABC463-B, ABC463-C, ABC461-C — historical July 2026 build-log result. Training-data overlap has not been independently ruled out. Not re-run for this release; see the dated receipts.
1508tests green on drevin’s own backendThe Cloudflare Worker behind this product — 159 test files, one run, zero failures. Lower than the 1,687 shown here before: ~14k lines of legacy were deleted in August and their tests went too.
87.9%memory recall, from a measured 0.0% baseline58 questions against a real conversation archive, n=2 on a corpus verified clean of test-written sessions — it finds the decision you made weeks ago. Not re-run since 2026-08-26.
100%trap silence — it doesn’t invent what it doesn’t haveQuestions whose answer is deliberately absent from the archive. It has to say it doesn’t know instead of assembling something plausible. 100% in every clean run — the most consistently reproduced result here.
1path-traversal bug caught in its own codeA zip-slip in drevin’s own file writer, found by its own audit round and fixed before ship — commit e06c92a.

Every receipt, with the date it was last checked →

Planned Basic

$29 / month

Paid plans are not open yet. The prices below are planned monthly subscriptions, not offers you can buy today.

  • Basic: $29 USD/month (planned)
  • Power User: $69 USD/month (planned)
  • Ultimate: $200 USD/month (planned)

Enterprise — Power User for teams of at least 5. The proposed USD 50 pricing unit is still being clarified; no team total is quoted.

Usage limits for the planned Basic, Power User and Ultimate subscriptions have not been confirmed. Model availability and task capacity are subject to the account and service limits; access is not unlimited.

Review the proposed changes and command output before relying on them. Approval controls are not an operating-system sandbox, and generated code can contain mistakes.

Paid plans are not open yet. The prices below are planned monthly subscriptions, not offers you can buy today.

I build it in the open. Get the weekly letter and you’ll know the day it opens.

One letter a week while I build it · no spam · one click to leave

Download drevin for Windows

v0.1.3 · Windows, 64-bit · 110.6 MB · account limits apply

This release is unsigned and Windows may show a SmartScreen warning. Verify the download source before deciding whether to install it.