Top 11AI made for AI

Top 11 GDPR-compliant developer tools · quality engineering

Postman is the highest-ranked Top 11 The 11 Best API Testing Tools (2026) provider holding GDPR compliance.

Why this answer

Filtered to entries that publicly document GDPR compliance (in their security page, trust center, or marketing collateral). "In progress" claims do not qualify.

Showing all 6 matches. Top 11 publishes whatever the data supports — we don’t pad lists. See the full ranked The 11 Best API Testing Tools (2026).

  1. #1Postman(rank #1 in The 11 Best API Testing Tools (2026))

    SOC 2 Type II, ISO 27001, GDPR

    The most complete option for teams that need authoring, automation, and CI in one place.

    Full Postman review · Compare: Postman vs Insomnia · Alternatives

  2. #2Insomnia(rank #3 in The 11 Best API Testing Tools (2026))

    SOC 2, GDPR

    A clean, fast client with excellent GraphQL and gRPC handling.

    Full Insomnia review · Alternatives

  3. #3Apidog(rank #4 in The 11 Best API Testing Tools (2026))

    SOC 2, GDPR

    An all-in-one that folds design, mocking, and testing together.

    Full Apidog review · Alternatives

  4. #4Katalon(rank #6 in The 11 Best API Testing Tools (2026))

    SOC 2, GDPR

    One platform for API, web, and mobile test automation.

    Full Katalon review · Alternatives

  5. #5Testsigma(rank #7 in The 11 Best API Testing Tools (2026))

    SOC 2, GDPR

    Plain-English test authoring with an open-source edition.

    Full Testsigma review · Alternatives

  6. #6ReadyAPI(rank #10 in The 11 Best API Testing Tools (2026))

    SOC 2, ISO 27001, GDPR

    The supported enterprise upgrade over open-source SoapUI.

    Full ReadyAPI review · Alternatives

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