Postman has grown bloated and cloud-dependent. These lightweight alternatives store data locally, respect your privacy, and focus on what matters: testing APIs.
Each app below addresses a specific gap in Postman's offering. We picked them based on real user review patterns and feature differentiation.
Insomnia provides a clean API client for REST, GraphQL, gRPC, and WebSocket testing. The open-source core stores data locally by default. Plugin support extends functionality, and the focused interface avoids the feature bloat that plagues Postman.
Explore Insomnia data →Bruno takes a radical approach by storing API collections as files in your project directory, making them versionable with Git. No cloud account needed, no sync issues, no privacy concerns. The offline-first design means it always works, and collections live alongside your code.
Explore Bruno data →HTTPie provides both a command-line tool and a desktop app for API testing. The CLI is beloved for its intuitive syntax and colorized output. The desktop app adds a visual interface while maintaining the simplicity philosophy. API collections sync across devices.
Explore HTTPie data →Hoppscotch provides a fast, browser-based API testing environment supporting REST, GraphQL, WebSocket, SSE, and MQTT. Being browser-based means instant access with no installation. Self-hosting is available for teams wanting to keep collections private.
Explore Hoppscotch data →Thunder Client brings API testing directly into VS Code as an extension, eliminating the need for a separate application. Collections are stored locally and can be saved to your Git repository. The VS Code integration means your API testing lives where you code.
Explore Thunder Client data →curl remains the universal standard for making HTTP requests from the command line, and paired with jq for JSON processing, it handles most API testing needs. Scripts are infinitely composable, version-controllable, and work on every platform. No GUI needed.
Explore curl and jq data →We compared API testing tools on local storage, offline support, pricing, and developer experience to find the best Postman alternatives.
Bloat, cloud-first data storage, expensive team pricing, and degraded offline experience are the main drivers. Bruno and Thunder Client store collections locally. Insomnia and Hoppscotch are open source. Many developers prefer tools that respect local-first principles.
Bruno is the best free alternative for local-first API testing with Git integration. Hoppscotch is the best browser-based option. Insomnia has a strong open-source core. Thunder Client is ideal for VS Code users. All are free for individual use.
Yes, most alternatives support Postman collection import. Bruno, Insomnia, Hoppscotch, and Thunder Client all accept Postman collection files. Export your collections from Postman as JSON and import into your chosen alternative.
Bruno is designed offline-first with filesystem storage. Thunder Client works within VS Code offline. Insomnia stores data locally by default. curl works everywhere with no internet needed. Explore API tools on AppVulture to find the right developer tooling for your workflow.
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