Can I self-host an alternative to Postman?

Yes — Bruno, Hoppscotch, HTTPie all support self-hosting. Most ship as Docker containers and run on any VPS.

Bruno is open-source under MIT. You can self-host for free. Many also offer a hosted cloud option with a free tier and paid plans.

All alternatives

API Testing

Best Open-Source Alternatives to Postman

Q: What is the best open-source alternative to Postman?

The top open-source alternative to Postman is Bruno: Bruno is the cleanest Postman replacement in 2026. Collections live as plain text files in your git repo — you can diff API changes alongside code, just like everything else you ship. Native desktop a

Postman is the dominant API testing client but went cloud-only in 2024 — forcing teams onto its servers and breaking offline workflows. The open-source alternatives put your collections back in git, work offline, and skip the per-user pricing.

TL;DR — top pick

Bruno

Bruno is the cleanest Postman replacement in 2026. Collections live as plain text files in your git repo — you can diff API changes alongside code, just like everything else you ship.

github.com/usebruno/bruno

All 3 alternatives ranked

Bruno

MITSelf-hostable★ ~32k

github.com/usebruno/bruno

Bruno is the cleanest Postman replacement in 2026. Collections live as plain text files in your git repo — you can diff API changes alongside code, just like everything else you ship. Native desktop app for Mac/Win/Linux, no login, no cloud sync, no rate-limited free tier. The "Postman quit being open-source" answer most teams have switched to.

Pick Bruno if

Your team is on git and you want API collections under version control. Or Postman's mandatory cloud forced your hand.

Skip if

You need shared team workspaces with comments and live collaboration — Bruno is local-first only.

Hoppscotch

MITSelf-hostable★ ~65k

github.com/Hoppscotch/hoppscotch

Hoppscotch is the browser-first Postman alternative. Fast, lightweight, runs at hoppscotch.io free or self-host. Supports REST, GraphQL, WebSocket, SSE in one UI. The PWA loads in <2 seconds and feels snappier than Postman ever did.

Pick Hoppscotch if

You want a Postman-like UX without installing anything, or you need GraphQL + WebSocket testing in the same place.

Skip if

You're testing flows with auth/cookies that browsers block — desktop apps like Bruno handle these cleaner.

HTTPie

BSD-3-ClauseSelf-hostable★ ~35k

github.com/httpie/cli

HTTPie is the curl that humans deserve. CLI-first API testing with colored output, JSON pretty-printing, session persistence, and form-data syntax that doesn't require a memory of bash quoting rules. Use it in scripts, CI, and one-off debug sessions.

Pick HTTPie if

You live in the terminal and want a curl replacement that doesn't hate you.

Skip if

You need a GUI for managing 200+ saved requests — pair HTTPie with Bruno instead.

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