Insomnia vs Stoplight
Which automation & integration tool is right for you? Compare features, pricing, and user reviews to make the best choice.
Insomnia
Teams that need a choice of where API data lives (some projects local-only, others shared through Git or cloud), and teams already using Kong Gateway or Konnect.
Stoplight
Teams that design API contracts before writing code, need consistent API style across several teams, or publish polished docs from OpenAPI.
Side by side
| Insomnia | Stoplight | |
|---|---|---|
| Pricing | Free Essentials; Pro $12/user/month | Free (1 user); Basic $44/month (annual, 3 users) |
| G2 Rating | Not yet verified | Not yet verified |
| Best For | Teams that need a choice of where API data lives (some projects local-only, others shared through Git or cloud), and teams already using Kong Gateway or Konnect. | Teams that design API contracts before writing code, need consistent API style across several teams, or publish polished docs from OpenAPI. |
Pros and cons
Insomnia
Pros
- Choose local, Git or cloud storage per project
- Apache-2.0 open-source client with plugins
- Broad protocol support including gRPC and SSE
- Built-in OpenAPI design mode and mocks
- Pairs naturally with Kong's gateway products
Cons
- Free Git Sync is capped at 3 users
- Enterprise at $45/user/month is the priciest seat on this page
- Past account and sync requirement changes left some users wary
- Smaller ecosystem of vendor-published collections than Postman
Stoplight
Pros
- Visual editor makes OpenAPI usable for non-YAML writers
- Docs and mocks come straight from the spec
- Spectral and Prism are free and work in CI
- Included-user pricing is good value on Basic and Startup
Cons
- Not a day-to-day API testing client
- Governance and SSO only from Pro Team ($362/month annual)
- Long-term roadmap under SmartBear is worth confirming
- Overlaps with Postman Spec Hub and Insomnia design mode for light needs
Related comparisons
Best API Testing and Management Tools
For API testing, pick Postman if your team collaborates heavily and wants monitoring built in, or Bruno if collections should live in Git. Add Stoplight for design-first API programs and Kong only when you need a production gateway.
Sarah ChenUpdated October 2026Postman alternatives
If you only use Postman to send requests and run tests, switch to Bruno for a free, Git-first setup, or Insomnia for the closest like-for-like tool. Stay on Postman if you rely on its monitors, governance or API catalog.
Sarah ChenUpdated October 2026