Insomnia
Insomnia is an open-source, cross-platform API client for GraphQL, REST, WebSockets, Server-Sent Events (SSE), gRPC and other HTTP-compatible protocols. API debugging offers CI/CD streams with design, testing packages, fake (mock) server and CLI with OpenAPI editor. Projects can be stored entirely locally with Local Vault or with optional end-to-end encrypted Cloud Sync; Git Sync and unlimited collaboration are included in paid plans.
Insomnia
100Kong · API Testing & Mocking
Common commercial products in this category: Postman, Insomnia, Paw
- Using popular protocols and formats, you debug API
- Design API with local OpenAPI editor
- Imitate API with cloud or your own hosted server
- • High number of open issues (916)
- ↓ NegativeHacker News
Insomnia 3.0 – A simple and beautiful REST API client
“I've used Insomnia in the past when I was evaluating various REST clients. At the time I was using mainly Burp and sometimes Postman. I did not stick to it mainly because I could not find some features that I needed for my work. From what I can see on the website, the new update…”
- ↑ PositiveHacker News
Insomnia 3.0 – A simple and beautiful REST API client
“I cannot agree more on this :) The first time I saw Insomnia last year, I found it already very well designed. It had a smooth UX on most basic actions and, I have to say, a fun use of the ".rest" domain name! I'm the founder of Paw and I can safely say that building a good UI…”
Verified against README · Oct 26, 2026 · source
My note
Alternative pages
More in: API Testing & Mocking
- Hoppscotch★ 80,711 · yesterday
- Swagger UI★ 29,067 · yesterday
- openapi-generator★ 26,843 · yesterday
- keploy★ 18,923 · today
- posting★ 12,557 · 15 days ago
- resty★ 11,824 · 12 days ago