Top 11AI made for AI

Free developer tools · code review in the Top 11

10 providers in the Top 11 CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026 offer a free tier; the most credible is CodeRabbit.

Why this answer

Filtered to entries with a published free tier (not just a free trial). When the pricing page is ambiguous we err conservative — paid-only by default.

Showing all 10 matches. Top 11 publishes whatever the data supports — we don’t pad lists. See the full ranked CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026.

  1. #1CodeRabbit(rank #1 in CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026)

    Free tier

    Best all-round PR reviewer, free for public repos.

    Full CodeRabbit review · Compare: CodeRabbit vs GitHub Copilot Code Review · Alternatives

  2. #2GitHub Copilot Code Review(rank #2 in CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026)

    Free tier

    Already bundled with Copilot seats you likely pay for.

    Full GitHub Copilot Code Review review · Alternatives

  3. #3Qodo Merge(rank #4 in CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026)

    Free tier

    Reviews the PR, then writes the missing tests.

    Full Qodo Merge review · Alternatives

  4. #4Graphite Diamond(rank #5 in CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026)

    Free tier

    Fewest comments, highest hit rate per comment.

    Full Graphite Diamond review · Alternatives

  5. #5Cursor Bugbot(rank #6 in CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026)

    Free tier

    Bug hunting that hands fixes back to your editor.

    Full Cursor Bugbot review · Alternatives

  6. #6Amazon Q Developer(rank #7 in CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026)

    Free tier

    Cheapest credible option if you already run AWS.

    Full Amazon Q Developer review · Alternatives

  7. #7Snyk Code(rank #8 in CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026)

    Free tier

    Best security findings, weakest general review.

    Full Snyk Code review · Alternatives

  8. #8Sourcery(rank #9 in CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026)

    Free tier

    Cheapest editor-time refactoring feedback.

    Full Sourcery review · Alternatives

  9. #9Codacy(rank #10 in CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026)

    Free tier

    Best dashboards, average AI commentary.

    Full Codacy review · Alternatives

  10. #10Semgrep Assistant(rank #11 in CodeRabbit vs Copilot vs Greptile: 11 Best AI Code Review Tools 2026)

    Free tier

    Deterministic rules, AI used only to triage.

    Full Semgrep Assistant review · Alternatives

Methodology: /methodology · No paid placement ever · Verified .