Paste any public GitHub pull request URL and see the schema diff instantly. Breaking changes, risk score, and migration SQL — no install, no token, no signup.
Works for public repos only. The SQL file is read from GitHub, diffed in memory, and never stored.
Zero-config install. SchemaLens comments the diff automatically on every PR.
Learn more →Add a workflow file to your repo for full control over checks and gates.
View Action →Generate a ready-to-paste workflow for GitHub Actions, GitLab CI, Jenkins, CircleCI, or Bitbucket.
Open Wizard →