Insomnia vs Postman

From $12 per user/month (Pro; ~17% off billed annually)

From $9 per user/month (Solo, billed annually)

Free for small teams; Pro lifts the user cap and adds RBAC, and Enterprise at $45 per user/month adds SSO/SCIM and Kong Konnect integration.

Postman reorganised its plans: Solo $9, Team $19 and Enterprise $49 per user/month billed annually — the old Basic tier is gone. The free tier is generous for individuals; costs come from collaborator seats and monitoring/mock-call volume.

Essentials is free for up to 3 users, including local and cloud projects, CLI and 1,000 mock requests a month.

Free plan for individuals and small teams with limited collection runs, mock calls and monitors.

Widely used

Kong · since 2016

Category standard

Postman, Inc. · since 2012

• Noticeably faster and lighter than Postman for everyday request work.
• Best-in-class GraphQL and gRPC ergonomics.
• Design-first OpenAPI workflow with linting built in.

• Near-universal adoption — collections are a lingua franca between teams and vendors.
• Covers design, mocking, testing, documentation and monitoring in one place.
• Newman makes any collection runnable in CI without rewriting it.

• A forced-account change in 2023 damaged trust; check the current model before standardising on it.
• Test scripting is less capable than Postman's.
• Smaller ecosystem of shared collections.

• Cloud-first sync raised real concerns for teams handling sensitive API credentials; the offline story has been repeatedly reduced.
• Collections stored in the vendor cloud rather than your repo make code review and branching awkward.
• The desktop app has grown heavy, and per-seat costs add up on large teams.

Developers who mainly want a fast client with excellent GraphQL support.

Teams that want one tool covering the whole API lifecycle and value ecosystem ubiquity.