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Insomnia vs Postman

Self-host swap-in for Postman. · Self-host Postman · Insomnia on os-alt

Insomnia is one of the open-source self-host replacements for Postman — license Apache-2.0 (open core; some sync features are SaaS-only), 5min (desktop app) to stand up, and $0 for local-only use; cloud sync requires kong account. Compare against Postman's Free tier; $14-29/user/mo for paid tiers below.

Insomniaopen-sourcePostmanpaid SaaS
CategoryAPI client / API workspaceAPI client / API workspace
License / pricingApache-2.0 (open core; some sync features are SaaS-only)Free tier; $14-29/user/mo for paid tiers
Starting price$0 self-host$14/user/mo
GitHubKong/insomnia ★ 38.4k · last commit 2d agoaliveclosed source
Setup time5min (desktop app)SaaS — sign up + bill
Monthly cost$0 for local-only use; cloud sync requires Kong account.from $14/user/mo (Free tier; $14-29/user/mo for paid tiers)

Switching from Postman to Insomnia

Postman → Export → Collection v2.1. Insomnia → Application → Preferences → Data → Import Data → File. Both Postman and Bruno formats are supported.

Good fit for
Devs migrating off Postman who still want a polished desktop GUI.
Weak at
Multi-user sync is gated behind Kong's cloud unless you self-host their backend (paid).

Other open-source self-host alternatives to Postman

  • Bruno
    MIT5min (desktop app install)$0 — collections are flat files in your Git repo.
  • Hoppscotch
    MIT10min docker-compose$5 VPS for the SH backend; or use the public app at hoppscotch.

In a terminal? npx os-alt postman prints Postman's self-host options — how the CLI works →

FAQ

Is Insomnia a free alternative to Postman?

Yes — Insomnia is open source under Apache-2.0 (open core; some sync features are SaaS-only). Self-host cost: $0 for local-only use; cloud sync requires Kong account.. Postman starts at $14/user/mo (Free tier; $14-29/user/mo for paid tiers).

How long does Insomnia take to set up vs Postman?

Self-hosting Insomnia: 5min (desktop app). Postman is a hosted SaaS — sign up and you're in.

What is Insomnia good at, and what is it weak at?

Good fit for: Devs migrating off Postman who still want a polished desktop GUI.. Weak at: Multi-user sync is gated behind Kong's cloud unless you self-host their backend (paid)..