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Software · Networking & admin

Restfox

A powerful minimalistic HTTP client.

  • Completely free
  • Windows, Linux and the web
  • Open source
  • No account

Overview

Features described in its GitHub repository and in its Flathub listing: offline use, plugins and add-ons.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Offline-First Minimalistic HTTP & Socket Testing Client for the Web & Desktop” — GitHub, 10 November 2026
  • “Additionally, Restfox offers plugin support to help developers modify request data before a request is sent, adjust response data after a response is received, set environment variables using the response data, and…” — Flathub, 10 November 2026

At a glance

Restfox is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (MIT) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

  • Open source code
  • No account needed
  • Commercial use allowed

About

Restfox is an HTTP client application that allows users to test and interact with RESTful APIs. It provides a user-friendly interface for making HTTP requests, viewing responses, and managing API endpoints. Restfox is designed to help developers and testers streamline their API development and testing processes. Additionally, Restfox offers plugin support to help developers modify request data before a request is sent, adjust response data after a response is received, set environment variables using the response data, and perform testing.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Official plan pages (pricing, licence, terms) (commercial use) —
  • Facts collected from Winget (Windows Package Manager) (credit card, account, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from GitHub (credit card, account, source code, publisher, licence, free status, platforms, commercial use) —
  • Last technical check: 8 November 2026
  • Description from Flathub — AppStream (Flathub)

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