api-client
Insomnia
Open-source API client + design platform — the developer-first Postman alternative
OSS (MIT) API client by Kong. REST, GraphQL, gRPC, WebSockets. Local-first with optional E2E encrypted cloud sync. Faster + lighter than Postman. Git sync for collections. 800k+ developers.
Pricing
| Tier | Price | Notes |
|---|---|---|
| Free | Free | $0. Unlimited local. Cloud sync with E2EE. 1 project. Local + Git storage. Up to 3 members. |
| Pro | $5/mo | $5/user/mo annual. Unlimited projects, cloud sync + Git sync + Insomnia AI. |
| Enterprise | $25/mo | $25/user/mo. SSO, SAML, RBAC, audit log, dedicated SLA, VPC. |
Limits
| Tier | Metric | Value | Notes |
|---|---|---|---|
| — | api design | Built-in API design (OpenAPI + Swagger) + docs preview | API design |
| — | collections | Uses OpenAPI-like specs for API definitions + request collections | Collections |
| — | git sync f | Native Git sync — collections versioned in your repo | Git sync |
| — | license | MIT (app source code) — OSS core | License |
| — | local first | Works fully offline — cloud sync optional (E2EE) | Local-first |
| — | parent company | Owned by Kong Inc. since 2019 | Parent |
| — | plugins ecosystem | Extensible via Node.js plugins — community + custom | Plugins |
| — | protocols | HTTP/REST, GraphQL, gRPC, WebSockets, SOAP | Protocols |
| — | storage options | Local storage, Cloud Sync (E2EE), or Git Sync (your repo) | Storage |
| — | vs hoppscotch | Insomnia = desktop-first + Kong-backed; Hoppscotch = web-first + OSS + self-host | vs Hoppscotch |
| — | vs postman | Insomnia = OSS + local-first + lighter; Postman = cloud + feature-rich + enterprise | vs Postman |
Features
- API Design (OpenAPI) — Spec editor + preview.
- Auth Helpers — OAuth, AWS, Hawk, Bearer, etc.
- Cloud Sync (E2EE) — Opt-in encrypted sync.
- Environments — Variables per env.
- Git Sync — Version with your repo.
- GraphQL — Query + schema explorer.
- gRPC — gRPC client.
- HTTP Client — REST request builder.
- inso CLI — Run API tests + lint specs in CI.
- Insomnia AI — AI-assisted request building.
- Local-First Storage — No account required.
- Mock Server — Build mocks from OpenAPI (Pro).
- Plugins — Extend via Node.js.
- Request Collections — Grouped requests.
- Scratch Pad — Local-only mode (re-added after backlash).
- SOAP — WSDL + SOAP.
- Teams — Shared workspaces.
- Templating Engine — Nunjucks + JS snippets.
- WebSockets — WS connection + messages.
Developer interfaces
| Slug | Name | Kind | Version |
|---|---|---|---|
| git-sync | Git Sync (built-in) | other | — |
| cli-inso | inso CLI | cli | 11.x |
| rest-api | Insomnia Cloud API | rest | v1 |
| desktop | Insomnia Desktop | other | — |
| plugins | Plugin API | sdk | 1.x |
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