Open Source Fiddler Alternatives

    The best open source alternative to Fiddler is Wireshark, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Fiddler and 12 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Fiddler are mitmproxy (Free, Open Source), OWASP Zed Attack Proxy (ZAP) (Free, Open Source), Advanced REST Client (ARC) (Free, Open Source) and HTTP Toolkit (Freemium, Open Source).

    The list of alternatives was last updated Jan 29, 2021

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • iPhone
    • Google Chrome
    • Firefox
    • iPad
    • BSD
    • Chrome Web Store
    • React
    • Electron / Atom Shell
    • Waterfox
    • Pale Moon
    • Node.JS
    • Chromium
    • Chrome OS

    Features

    • Debugger
    • HTTP Monitoring
    • Proxy
    • REST API
    • Network Monitoring
    • HTTP Proxy
    • Firefox Extensions
    • Sniffer
    • Portable
    • Web Testing
    • Penetration Testing
    • Ssl
    • Detailed packet analysis
    • Api
    • Google Chrome Extensions
    • Legacy Firefox Addon
    • Logging
    • Machine Learning
    • Mocking of APIs
    • Monitor HTTP Traffic

    License

    × Clear
    • Free
    • Open Source
    • Paid
    All Filters

    Showing 10 of 12 alternatives