Fiddler AlternativesOnly apps categorised as Web Debuggers

The best Web Debugger alternative to Fiddler is Charles. It's not free, so if you're looking for a free alternative, you could try mitmproxy or HTTP Toolkit. If that doesn't suit you, our users have ranked more than 25 alternatives to Fiddler and 12 are Web Debuggers so hopefully you can find a suitable replacement. Other interesting Web Debugger alternatives to Fiddler are HTTP Debugger, Zed Attack Proxy (ZAP), HttpMaster and Requestly.

filter to find the best alternatives

Fiddler alternatives are mainly Web Debuggers, but if you're looking for HTTP(S) Debuggers or HTTP Clients you can filter on that. Other popular filters include Mac, Linux, Open Source, Mac + Open Source, Windows, iPhone and Google Chrome. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Fiddler.
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Alternatives list

  1. Charles icon

    Charles

     68 likes
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    Charles is an HTTP proxy / HTTP monitor / Reverse Proxy that enables a developer to view all of the HTTP and SSL / HTTPS traffic between their machine and the Internet. This includes requests, responses and the HTTP headers (which contain the cookies and caching information).

    28 Charles alternatives

    Cost / License

    • Pay once
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • iPhone
    • iPad
    Charles screenshot 1
     
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    1
    51
    Comments about Charles as an Alternative to Fiddler
    Guest
    Negative
    -23

    It doesnt log outgoing and incoming requests.

    Review by a new / low-activity user.
    Fiddler Icon
    Charles icon

    • Most users think Charles is a great Fiddler alternative.

    • Charles is the most popular iPhone & iPad alternative to Fiddler.

    • Charles is the most popular commercial alternative to Fiddler.

    • Charles is Paid and ProprietaryFiddler is Freemium and Proprietary
  2. mitmproxy icon

    mitmproxy

     76 likes
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    mitmproxy is an SSL-capable man-in-the-middle proxy for HTTP. It provides a console interface that allows traffic flows to be inspected and edited on the fly. It also features mitmdump, a commandline tool that provides a tcpdump-like interface for saving, viewing and...

    20 mitmproxy alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Flatpak
    mitmweb
     
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    3
    30
    Comments about mitmproxy as an Alternative to Fiddler
    Guest
    Positive
    4

    mitmproxy is able to edit response data

    Review by a new / low-activity user.
    Guest
    Positive
    0

    mitmproxy is free and well featured, but fiddler does have an easier workflow to start with

    Review by a new / low-activity user.
    Guest
    Positive
    0

    It's able to analyze http requests made by other proxies, many other of the alternatives here only allow creating requests

    Review by a new / low-activity user.
    Fiddler Icon
    mitmproxy icon

    • Most users think mitmproxy is a great Fiddler alternative.

    • mitmproxy is Free and Open SourceFiddler is Freemium and Proprietary
  4. HTTP Toolkit icon

    HTTP Toolkit

     81 likes
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    HTTP Toolkit is a beautiful, cross-platform & open-source HTTP(S) debugging proxy, analyzer & client, with built-in support for modern tools and automatic interception for clients from Docker to Android to iOS.

    50 HTTP Toolkit alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Docker
    HTTP Toolkit screenshot 1
     

    • HTTP Toolkit is the most popular Android alternative to Fiddler.

    • HTTP Toolkit is Freemium and Open SourceFiddler is Freemium and Proprietary
    • HTTP Toolkit is LightweightFiddler is not according to our users
  6. Zed Attack Proxy (ZAP) icon

    Zed Attack Proxy (ZAP)

     30 likes
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    The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Java
    Zed Attack Proxy (ZAP) screenshot 1
     
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    1
    9
    Comments about Zed Attack Proxy (ZAP) as an Alternative to Fiddler
    Guest
    Negative
    6

    ZAP is a proxy for attacks, not a proxy for development

    Review by a new / low-activity user.
    Fiddler Icon
    Zed Attack Proxy (ZAP) icon

    • Some users think Zed Attack Proxy (ZAP) is a great Fiddler alternative, some don't.

    • Zed Attack Proxy (ZAP) is Free and Open SourceFiddler is Freemium and Proprietary
  7. HttpMaster icon

    HttpMaster

     9 likes
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    Practical and easy-to-use software tool for testing HTTP applications and services.

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Windows
    HttpMaster screenshot 1
     
  9. Requestly icon

    Requestly

     32 likes
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    Requestly is a lightweight proxy available as a browser extension & desktop app to intercept & modify network requests. Using Requestly you can Modify Headers, Redirect Url, Mock API response, Delay/Throttle requests, etc.

    30 Requestly alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Microsoft Edge
    • Google Chrome
    • Software as a Service (SaaS)
    • Selenium
    • Firefox
    Modify HTTP Headers
     

    • Requestly is the most popular Web-based & SaaS alternative to Fiddler.

    • Requestly is Freemium and Open SourceFiddler is Freemium and Proprietary
    • Requestly is LightweightFiddler is not according to our users
  10. Surge for Mac icon

    Surge for Mac

     3 likes
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    Working quietly on the Menubar, Surge is a high-performance HTTP/SOCKS5 proxy server. It is capable of intercepting and logging the summary of HTTP traffic, and meanwhile transmitting the traffic to other proxy servers according to the flexible rule system.

    Cost / License

    • Pay once
    • Proprietary

    Application type

    Platforms

    • Mac
    • iPhone
    • iPad
    Surge for Mac screenshot 1
     
  11. HttpFox icon

    HttpFox

     10 likes
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    HttpFox monitors and analyzes all incoming and outgoing HTTP traffic between the browser and the web servers.

    Cost / License

    • Free
    • Proprietary

    Application types

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Waterfox
    • Pale Moon
    HttpFox screenshot 1
     
  12. James icon

    James

     5 likes
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    James is a HTTP Proxy and Monitor that enables developers to view and intercept requests made from the browser. It is an open-source alternative to the popular developer tool Charles.

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • React
    • Electron / Atom Shell
    • Node.JS
    James screenshot 1
     
  14. ReqRes icon

    ReqRes

     2 likes
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    ReqRes is an open-source, high-performance, modern native web debugging proxy for macOS. It lets you capture, inspect, modify, and intercept HTTP(S) traffic in real time.

    8 ReqRes alternatives

    Cost / License

    • Freemium (Pay once)
    • Open Source

    Application types

    Platforms

    • Mac
    ReqRes screenshot 1
     
12 of 12 Fiddler alternatives