Restfox – Open source lightweight alternative to Postman
Last time I posted this it didn't garner much interest. There have been lots of improvements and fixes since the last release. Quick list of features: - Workspaces - Tabs - Nested Folders - Lots of context menus - Response history - Plugins - Runs fully in the browser and runs offline if necessary - Chrome and Firefox extension to bypass CORS restrictions - Desktop builds for all platforms - GraphQL support - Import collections exported from Postman and Insomnia - Simple user friendly interface I built this because I love Insomnia but wanted a portable version that I could run in the…
In plain words
Restfox is an open source API testing tool that runs in the browser, as a desktop application, or offline. It supports workspaces, tabs, nested folders, response history, plugins, and GraphQL, with the ability to import collections from Postman and Insomnia. The tool includes browser extensions for Chrome and Firefox to bypass CORS restrictions and offers a simpler interface than Postman. Restfox is designed for developers who want a lightweight, portable alternative to heavier API testing platforms.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Last time I posted this it didn't garner much interest. There have been lots of improvements and fixes since the last release. Quick list of features: - Workspaces - Tabs - Nested Folders - Lots of context menus - Response history - Plugins - Runs fully in the browser and runs offline if necessary - Chrome and Firefox extension to bypass CORS restrictions - Desktop builds for all platforms - GraphQL support - Import collections exported from Postman and Insomnia - Simple user friendly interface I built this because I love Insomnia but wanted a portable version that I could run in the browser. If you're tired of Postman's bloated interface and slow startup times, do give this a try.
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