Alternatives to Firecamp
An open-source API client for testing REST, GraphQL, WebSocket and Socket.IO requests in the browser. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Firecamp
An open-source API client for testing REST, GraphQL, WebSocket and Socket.IO requests in the browser.
Replacements
Listings that take over the same core job as Firecamp.
Hoppscotch
A fast API client that runs in a browser tab, with a self-hostable workspace if you want one.
Hoppscotch also runs in the browser and is open source under MIT, adds Server-Sent Events and MQTT, and can be self-hosted so collections stay on your infrastructure.
Postman
The most widely used API client, for sending HTTP requests, organising them into collections and sharing them with a team.
Postman offers desktop apps and a browser version with collections, scripts, documentation and mock servers, but it is closed source and stores collections on its cloud by default.
Insomnia
An API client for REST, GraphQL and gRPC that can keep everything local or sync through Git instead of a cloud.
Insomnia moves to an open-source desktop client covering REST, GraphQL, gRPC and WebSockets, with local storage or Git sync, though most features expect an account.
Restfox
A lightweight, offline-first open-source HTTP client that runs in the browser and on the desktop.
Restfox is a lightweight, offline-first open-source HTTP client usable in the browser without installing anything, but with fewer collaboration and automation features than Firecamp.
Bruno
An API client that saves collections as plain files in a folder, so Git handles the sharing instead of a cloud account.
Bruno is an open-source MIT desktop client that stores collections as plain files shared through Git, covering REST, GraphQL, gRPC and WebSocket but not Socket.IO.
Yaak
An offline-first API client for REST, GraphQL, gRPC, WebSockets and SSE, with requests stored as files you can commit to git.
Yaak is an open-source offline desktop client for REST, GraphQL, gRPC, WebSockets and SSE, keeping requests as files in git with no cloud account needed.
ReqBin
An online tool for sending REST and SOAP API requests directly from the browser.
ReqBin sends REST and SOAP requests from the browser without login, but sends them from its own servers and lacks WebSocket and Socket.IO support; it is closed source.
RESTer
A browser extension for Firefox and Chrome for crafting and sending HTTP requests.
RESTer runs as a Firefox and Chrome extension for crafting and saving HTTP requests, without an account, but it is closed source and lacks real-time protocol support.
Also worth comparing
These listings name Firecamp as their own alternative, so the relationship runs both ways.
Apollo Sandbox
A free web-based GraphQL explorer for writing and running queries against any GraphQL endpoint.
Firecamp is an open-source browser client that handles GraphQL along with REST, WebSocket and Socket.IO, though saving requests and collections requires an account.
WebSocket King
A web-based client for connecting to, testing and debugging WebSocket servers.
Firecamp is an open-source browser client handling WebSocket and Socket.IO alongside REST and GraphQL, with a guest mode, though saving collections requires an account.
Similar software
Related functionality, not a direct replacement.
Altair GraphQL Client
A GraphQL client for writing, sending and debugging queries on desktop, in a browser extension and online.
MQTTX
A desktop, web and command-line MQTT client for testing brokers, topics and messages.
