Visual testing for coding agents.

Catch UI regressions before they ship. Give your agent the screenshots your team approved and the comments that explain what changed.

Add Vizzly to a repo See the agent API 
$ vizzly api schema sdk.getBuildContext --json
↳ GET /api/sdk/context/builds/{buildId} · Vizzly-API-Version: 2026-09-12

$ vizzly api /api/sdk/context/builds/abc123 \
  -H 'Vizzly-API-Version: 2026-09-12' -q limit=10 --json

{
  "resource": "build_context",
  "build": {
    "id": "abc123",
    "status": "completed",
    "visual_review": { "state": "pending" }
  },
  "summary": {
    "comparisons": { "total": 1, "pending": 1 }
  },
  "evidence": [{
    "type": "comparison",
    "id": "cmp456",
    "name": "checkout",
    "result": "changed",
    "review_state": "pending"
  }],
  "page": { "returned": 1, "has_more": false }
}

Review only what changed

This is the same review screen you'll use in Vizzly, so click around! Red shows what changed. Flip to Toggle to see the baseline, then approve or reject.

checkout

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From your terminal to the pull request

You get the same baselines and decisions everywhere, and your agent can read them through the API.

$ vizzly tdd run "npm test"

14 screenshots compared
◐ 1 visual change
  checkout   1.02%

→ vizzly tdd start --open

Catch it on your machine

Run your tests locally and get a report of what changed. No account needed.

Review it in the pull request

Your team approves or rejects each change, and the PR check updates when you're done.

$ vizzly context build current \
    --source local --json

{
  "name": "checkout",
  "result": "changed",
  "review_state": "approved"
}

Let your agent read it

Agents find what they need through the API schema, so they know what changed and what you decided.

Free for open source

Public baselines and PR checks your contributors can see.

$0 10 members · 75 GB · preview hosting

Private projects for teams

Start free with one private project. Upgrade when you need more.

$12 per user a month on Starter

Try it on your next pull request

It's free to start, and it stays free for open source.

Add Vizzly to a repo Read the docs