Postman's March 2026 pricing change dropped the Free plan to a single user, and every plan up to Enterprise caps collection runs at 25 per month unless you buy a separate Collection Runner add-on. Organizing anything beyond a single ad-hoc request also requires signing in, since collections and environments sync to Postman Cloud by default with no purely local storage option in the desktop app. Bruno and Yaak instead write each request to a plaintext file on disk with no sign-in step, so collections commit straight into a git repo and diff like ordinary source code. Hoppscotch and Firecamp ship as Docker containers you can run behind your own reverse proxy, keeping every request, mock server, and monitor check on infrastructure you control instead of metered against a 25-run-per-month quota.
| Name | Main Category | Sub-Category | Target Alternative | Free Tier Summary | Self-Hostable? | Short Description | Primary Link |
|---|---|---|---|---|---|---|---|
Yaak | DevOps & Application Hosting | API Client / Testing Suite | Postman | Free - Personal/Non-Commercial Use (MIT); Commercial License Required for Work Use | Yes - Binary | Desktop client built on Tauri and Rust that runs fully offline with no telemetry, mirrors workspaces to local files for Git versioning, and imports existing Postman collections directly. | |
Firecamp | DevOps & Application Hosting | Multi-Protocol API Client / Testing Suite | Postman | 100% Free - Self-Hosted (AGPL-3.0) | Yes - Docker | Multi-protocol API platform covering REST, GraphQL, WebSocket, and Socket.IO in one workspace, deployable as a self-hosted stack instead of the vendor's hosted plan. | |
Insomnia | DevOps & Application Hosting | API Client / Testing Suite | Postman | Free - Open Source Core (Apache-2.0); Paid Cloud Sync and Team Add-Ons via Kong | Yes - Binary | Kong-maintained API client covering REST, GraphQL, WebSockets, SSE, and gRPC, with a Local Vault storage mode and Git Sync so collections never have to touch a vendor cloud. | |
Bruno | DevOps & Application Hosting | API Client / Testing Suite | Postman | Free - Open Source (MIT); Paid Pro/Ultimate plans for advance Git & Enterprise features | Yes - Binary | Offline-first API client that stores every request as a plaintext .bru file on disk, so collections commit directly into a git repo and diff like ordinary source code with no forced cloud account. | |
Hoppscotch | DevOps & Application Hosting | API Client / Testing Suite (Self-Hosted Web App) | Postman | 100% Free - Self-Hosted Community Edition (MIT License); Paid Enterprise tier for SAML & admin controls | Yes - Docker | MIT-licensed API client available as a web app, PWA, or desktop app, with a Docker Compose or Kubernetes stack for self-hosting REST, GraphQL, WebSocket, and gRPC testing behind your own domain. | |
ATAC | DevOps & Application Hosting | Terminal-Based API Client | Postman | 100% Free - Open Source (MIT) | Yes - Binary | Terminal (TUI) API client written in Rust that runs entirely offline with no account required, importing existing Postman collections for teams that never want to leave the shell. | |
Milkman | DevOps & Application Hosting | API Client / Testing Suite | Postman | 100% Free - Open Source (MIT License) | Yes - Binary | Plugin-driven JavaFX workbench supporting REST, GraphQL, gRPC, and JDBC/SQL requests in one desktop app, built specifically so no account is ever required. |
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