Insomnia
Medusa
| Feature | Insomnia | Medusa |
|---|---|---|
| Pricing | Free / from $5/mo | Free only |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.2 / 5 | 4.4 / 5 |
| Best For | developers, api-designers, small-teams, individual-developers | developer-teams, custom-commerce, headless-commerce, multi-region-stores |
| Founded | 2015 | 2021 |
| Api Client | ✓ | ✗ |
| Graphql Explorer | ✓ | ✗ |
| Environment Variables | ✓ | ✗ |
| Git Sync | ✓ | ✗ |
| Plugins | ✓ | ✓ |
| Design Specs | ✓ | ✗ |
| Automated Testing | ✓ | ✗ |
| Headless Api | ✗ | ✓ |
| Multi Region | ✗ | ✓ |
| Admin Dashboard | ✗ | ✓ |
| Payment Providers | ✗ | ✓ |
| Fulfillment | ✗ | ✓ |
| Tax Engine | ✗ | ✓ |
✓ Insomnia Pros
- Beautiful and intuitive desktop application
- Git-based sync for version control of API specs
- Plugin system for extending functionality
- Supports REST, GraphQL, gRPC protocols
✗ Insomnia Cons
- Kong acquisition changed direction (cloud-focused)
- Free tier became more limited over time
- Fewer integrations than Postman
✓ Medusa Pros
- Fully open-source and developer-friendly
- Headless architecture for any frontend framework
- Built-in multi-region and multi-currency support
- Modular design allows replacing any component
✗ Medusa Cons
- Requires development resources to set up
- Newer platform with smaller ecosystem
- No visual store builder for non-developers
The Verdict
Insomnia is built for developers and api designers, with a focus on api-client and graphql-explorer. Medusa targets developer teams and custom commerce and leads with headless-api and multi-region.
Medusa uses custom enterprise pricing, while Insomnia starts at $5/mo — a tangible advantage for teams with a fixed budget.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.