GitBook vs Insomnia
GitBook and Insomnia are both API & developer docs tools aimed at developers and small businesses. Insomnia costs less, from $12/mo versus $65/mo for GitBook. Both have a free plan.
Docs that sync with Git
Open-source API client for REST, GraphQL, gRPC and MCP from Kong
| Pricing | Freemium · $65 | Open source · $12 |
| Starting price | $65/mo | $12/mo |
| Free plan | Yes | Yes |
| Free trial | 14 days | 14 days |
| Built for | Developers, Small businesses | Developers, Small businesses, Enterprise |
| Platforms | web | macos, windows, linux |
| Country | FR · 2014 | US · 2015 |
| Rating | — | — |
Choose GitBook if
Product and developer teams who want Git-backed docs with a friendly editor.
- Good balance of editor UX and Git workflows
- AI answers improve self-service
- Suitable for both technical and product docs
Look elsewhere if: API-first startups wanting maximum polish (Mintlify) or teams needing many separate sites cheaply.
Choose Insomnia if
Developers who want a fast, local-first, open-source API client with Git-based collaboration.
- Open-source core under the Apache 2.0 license
- Local-first storage keeps sensitive requests off the cloud
- Clean, fast interface that is lighter than Postman
Look elsewhere if: Teams that need a full API platform with published docs and broad workspace collaboration (Postman, Apidog, Stoplight).
GitBook vs Insomnia pricing
GitBook
- Free$0For individuals
- Essential$65/site/moBilled annually; +$12/user/mo; $20 AI credits
- Ultimate$249/site/moBilled annually; +$12/user/mo; $100 AI credits
- EnterpriseCustomCustomized pricing
Insomnia
- Essentials$0Local, Git and cloud projects; Git Sync for up to 3 users
- Pro$12/user/mo$10 billed annually; unlimited users, RBAC, 10K mock requests
- Enterprise$45/user/moSelf-serve up to 50 users; SSO, SCIM, storage policies
GitBook · Key features
- Block editor with Markdown shortcuts and Git sync
- OpenAPI blocks and code samples
- Change requests and review workflows
- AI answers and search for readers
- Custom domains, branding and analytics
- Authenticated access and variants (Ultimate)
Cons
- Per-site pricing adds up for multiple products
- Design flexibility is limited
- Some Git sync edge cases
Insomnia · Key features
- Requests for REST, GraphQL, gRPC, WebSocket, SSE and Socket.IO
- MCP client for testing Model Context Protocol servers
- OpenAPI design editor with live preview and linting
- Local, Git or end-to-end encrypted cloud storage per project
- Collection runner with pre- and post-request scripts and tests
- Mock servers built from specs, responses or plain-language prompts
Cons
- Collaboration and API documentation features trail Postman
- Free Git Sync is limited to 3 users
- Past login and sync changes hurt community trust
GitBook vs Insomnia: FAQ
Which is cheaper, GitBook or Insomnia?
Insomnia starts at $12/mo and GitBook at $65/mo. Both prices are checked on the vendors' own pricing pages.
Do GitBook and Insomnia have a free plan?
Yes, both GitBook and Insomnia have a free plan; paid plans add more usage and features.