About

SemanticDiff is a GitHub pull request review tool that renders programming-language-aware diffs for code changes. It highlights moved code, refactorings, and style-only changes, and supports review comments, approve/request-changes actions, and synchronization with GitHub.

The free plan is available for open source projects and small teams of up to 3 members. It includes support for public and private repositories, 14 programming languages plus JSON, XML/DTD, and gettext .po files, and community support through a public issue tracker or discussion forum.

  • Programming-language-aware pull request diffs
  • Moved code and refactoring detection
  • Style-change hiding and minimap
  • 14 supported programming languages
  • Public and private repository support
  • Review comments and GitHub sync
  • Free plan for up to 3 seats
  • Community support via public tracker

Free Tier Value

51
FTV score
Est. value $10 / month
Trial length 14 days
Credit card Required
Feature parity 85%

This free tier is genuinely usable for small teams: it stays available forever, includes the core review workflow, and supports up to 3 seats, public and private repositories, and community support. The cheapest paid plan is $10 per seat per month, so a 3-seat free allowance is worth about $10/month for a small team, though the paid plan adds priority processing and premium support. A credit card is not called out for the free plan, and the 14-day trial on the paid tier is separate from the perpetual free offering.

What's included in the free tier

  • Always free for 3 seats.
  • Hides style changes in diffs.
  • Detects moved code.
  • Detects refactorings.
  • Supports 14 programming languages.
  • Includes minimap view.
  • Allows writing review comments.
  • Allows approving or requesting changes.
  • Synchronizes pull request reviews with GitHub.
  • Supports public repositories.
  • Supports private repositories.
  • Includes community support via public issue tracker.

Paid plans

Professional

$10 / mo
seat
1+
  • Prioritized processing
  • Premium support via email
  • Everything in Free

Pricing extracted from SemanticDiff's pricing page. Always verify current pricing before committing.