Coding and developer tools

Api testing tools

Clients and testing tools for inspecting, exercising, and validating APIs

Api testing tools is growing in line with its peers; its strongest place is open-source editor extensions at 1.0× the typical product. The fastest product is Flashpost, up 1.7×. 133 products measured, as of Oct 10, 2026.

How we measure

Where it grows against its peers

  • Open-source editor extensions37 products1.05×
  • Code editor extensions46 products1.00×
  • Browser extensions5 products1.00×

The line marks 1×: the typical product in that place.

Fastest products

  1. 1FlashpostOpen-source editor extensions1.7×
  2. 2API ChatOpen-source editor extensions1.6×
  3. 3APIxsOpen-source editor extensions1.6×
  4. 4Gud API - REST & GraphQL ClientOpen-source editor extensions1.6×
  5. 5RequestFlowOpen-source editor extensions1.6×
  6. 6API StudioOpen-source editor extensions1.5×
  7. 7Hurl ClientCode editor extensions1.4×
  8. 8REST Client (do)Open-source editor extensions1.4×
  9. 9Hurl ClientOpen-source editor extensions1.4×
  10. 10REST LabOpen-source editor extensions1.4×

Api testing tools: quick answers

Not faster than its peers right now; the closest is open-source editor extensions at 1.0× the typical product.

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