Open source Insomnia alternatives

All Insomnia alternatives

1. 

   

   Bruno

   47.5KstarsLike

   Bruno is an open source API client that keeps collections as plain-text files on your disk rather than in a vendor cloud. Requests live next to your code and can be versioned and reviewed with Git like any other file. It handles REST and GraphQL requests, environments, scripting and assertions, and works fully offline without an account. Paid editions add advanced Git tools, AI assistance and enterprise features.

   6 Bruno alternatives

   Pros

   • Collections stored as plain-text files you can version with Git
   • Works fully offline, with no account required
   • Open source, with REST, GraphQL, scripting and assertions

   Cons

   • No built-in cloud sync: teams share collections through Git
   • Advanced Git tools and AI features need a paid edition
   • Smaller ecosystem than long-established API clients

   Cost / License

   FreemiumOpen source

   Categories

   API Clients

   Platforms

   WindowsMacLinux

   Features

   Automated API testingGit integrationGraphQL supportOffline modeRequest collections

   Visit websiteMore about Bruno
2. 

   

   Yaak

   19.3KstarsLike

   Yaak is a desktop API client created by Gregory Schier, the original author of Insomnia. It handles REST, GraphQL, gRPC, WebSocket and server-sent event requests, stores them as files that work with Git, and supports plugins for auth, importers and template functions. No account is required and secrets can be encrypted. Yaak is open source under MIT and free for personal use, with a paid license for use at work.

   6 Yaak alternatives

   Pros

   • Requests are stored as plain files that work well with Git
   • No account needed, with optional encryption for secrets
   • Fast, clean desktop app from the original author of Insomnia

   Cons

   • Use at work requires a paid license
   • Younger project with a smaller plugin ecosystem than Postman
   • Desktop only, with team sharing handled through Git rather than a cloud workspace

   Cost / License

   FreemiumOpen source

   Categories

   API Clients

   Platforms

   WindowsMacLinux

   Features

   Git integrationGraphQL supportOffline modePlugins & extensionsRequest collections

   Visit websiteMore about Yaak
3. 

   

   Hoppscotch

   80.6KstarsLike

   Hoppscotch is an open source API client that runs in the browser, as a desktop app or on your own server. It tests REST, GraphQL, WebSocket, Socket.IO, MQTT and server-sent events with collections, environments, pre-request scripts and tests. Teams can share workspaces, and organizations can self-host the whole platform with Docker. A browser extension helps send requests that CORS would otherwise block.

   6 Hoppscotch alternatives

   Pros

   • Runs in the browser with nothing to install
   • Supports REST, GraphQL, WebSocket, Socket.IO, MQTT and SSE
   • The whole platform can be self-hosted with Docker

   Cons

   • In the browser, CORS limits require an extension or proxy
   • Some team and enterprise features are paid

   Cost / License

   FreemiumOpen source

   Categories

   API Clients

   Platforms

   WebWindowsMacLinuxSelf-hostedBrowser extension

   Features

   Automated API testingGraphQL supportRequest collectionsTeam collaboration

   Visit websiteMore about Hoppscotch
4. 

   

   HTTPie

   38.8KstarsLike

   HTTPie is a family of HTTP clients designed to make working with APIs readable and quick. The open source command-line tool offers an intuitive syntax, built-in JSON support, colorized output, sessions and plugins, and is widely used in scripts and documentation. HTTPie for Web and Desktop adds a graphical interface with collections and environments, and HTTPie AI turns plain-language prompts into requests.

   6 HTTPie alternatives

   Pros

   • Readable command-line syntax that is easier to type than curl
   • Formatted, colorized JSON output makes responses quick to scan
   • One tool covers terminal scripts and a graphical app on desktop and web

   Cons

   • The graphical app has fewer testing and automation features than full API platforms
   • Not preinstalled like curl, so scripts carry an extra dependency

   Cost / License

   FreeOpen source

   Categories

   API Clients

   Platforms

   WebWindowsMacLinux

   Features

   AI assistantPlugins & extensionsRequest collections

   Visit websiteMore about HTTPie