Buyer's guide

The 15 Best APIs & Dev Tools & Websites in 2026

Looking for the best apis & dev tools? We curate hundreds of tools on DesignBookmark, and these are the 15 best picks worth your time in 2026 — whether you're just starting out or leveling up your stack.

  1. GitHub screenshot

    Where the world builds software — code, review and ship.

    Visit GitHub
  2. Postman screenshot

    The API platform for building and using APIs.

    Visit Postman
  3. Stripe screenshot

    Payments infrastructure and APIs for the internet.

    Visit Stripe
  4. Wappalyzer screenshot

    Identify the tech stack of any website instantly.

    Visit Wappalyzer
  5. Polypane screenshot

    The browser for ambitious web developers and designers.

    Visit Polypane
  6. GitLab screenshot

    The complete DevOps platform in a single application.

    Visit GitLab
  7. Cloudflare screenshot

    The connectivity cloud — security, performance and edge compute.

    Visit Cloudflare
  8. Clerk screenshot

    Complete user management and authentication for modern apps.

    Visit Clerk
  9. Twilio screenshot

    APIs for SMS, voice, video and authentication.

    Visit Twilio
  10. Resend screenshot

    The email API for developers, built on React Email.

    Visit Resend
  11. Sentry screenshot

    Application monitoring and error tracking for developers.

    Visit Sentry
  12. Algolia screenshot

    The fast and reliable search and discovery API platform.

    Visit Algolia
  13. RapidAPI screenshot

    The world's largest API hub to find and connect to APIs.

    Visit RapidAPI
  14. Hoppscotch logo

    An open-source, lightweight API development ecosystem.

    Visit Hoppscotch
  15. Mintlify screenshot

    Beautiful, AI-native documentation that converts users.

    Visit Mintlify

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