VersionLens
AI-assisted semver, free first scan

What version should your repo be on?

VersionLens walks every commit in any public GitHub repo — heuristic first, AI for the rest — and infers the semantic version that history implies. Starting from 0.0.0.

Try or .

· 1st scan: free, no sign-in· 2nd scan: free with Google· 3rd+: €5/month

Heuristic first

Conventional Commits (feat/fix/BREAKING) classified instantly with zero AI cost.

AI for the rest

Anything ambiguous is batched to Claude and cached by commit SHA — re-scans are free.

Compare any refs

Inferred bump from v1.2.0 → HEAD, with a downloadable CHANGELOG.md.

How VersionLens decides

  1. 1. Fetch full commit history of the chosen ref (up to 1,000 commits).
  2. 2. Parse each commit. feat: → minor, fix: → patch, !:/BREAKING CHANGE → major.
  3. 3. Send ambiguous commits to Claude for classification (conservative bias).
  4. 4. Walk chronologically from 0.0.0 — apply each bump in order.

Pre-1.0 repos use the conservative “0.x” convention: breaking changes bump the minor, not the major. See pricing.