Fiddler AlternativesOnly apps categorised as API Clients

The best API Client alternative to Fiddler is HTTP Toolkit, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Fiddler and ten of them are API Clients so hopefully you can find a suitable replacement. Other interesting API Client alternatives to Fiddler are HttpMaster, Requestly, Advanced REST Client and Stoplight.

filter to find the best alternatives

Fiddler alternatives are mainly API Clients, but if you're looking for HTTP Clients or HTTP(S) Debuggers 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. 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
  2. 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
     
  4. 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
  5. Advanced REST Client icon

    Advanced REST Client

     27 likes
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    API testing tool. Which allows web developers to create and test custom HTTP requests.

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Chrome OS
    • AppImageHub
    • Google Chrome
    • Chromium
    Advanced REST Client screenshot 1
     
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    1
    Comments about Advanced REST Client as an Alternative to Fiddler
    Guest
    Negative
    5

    Fiddler is a Proxy tool used to intercept and examine HTTP requests not to create an test HTTP requests.

    Review by a new / low-activity user.
    Fiddler Icon
    Advanced REST Client icon

    • This alternative is disputed. Advanced REST Client is a legitimate Fiddler alternative, but it might have issues that some users think are important.

    • Advanced REST Client is Free and Open SourceFiddler is Freemium and Proprietary
  6. Stoplight icon

    Stoplight

     12 likes
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    Stoplight is an API Design, Development, and Documentation platform that enables consistency, reusability, and quality, all with an easy, enjoyable developer experience.

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    Stoplight screenshot 1
     
  7. ArdorQuery icon

    ArdorQuery

     1 like
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    ArdorQuery is a cross-platform tool for performing any HTTP(S) endpoints like REST API, HTML, Images, GraphQL, OData etc.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Linux
    • Flathub
    ArdorQuery screenshot 1
     
  9. Apidog icon

    Apidog

     4 likes
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    Design and debug APIs in a powerful visual editor. Describe and debug easily with JSON Schema support. Apidog is a complete set of tools that connects the entire API lifecycle, helping R&D teams implement best practices for API Design-first development.

    42 Apidog alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    Apidog screenshot 1
     
  10. API Tester icon

    API Tester

     6 likes
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    API Tester is the first mobile app to test any type of API on the go. Test REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, and HTTPS APIs completely for free, on iOS or Android.

    Cost / License

    • Free
    • Proprietary

    Application types

    Platforms

    • Mac
    • Android
    • iPhone
    • Android Tablet
    • HUAWEI AppGallery
    • iPad
    Test any type of API
    Construct complex requests
    Import collections
     

    • API Tester is the most popular Android Tablet alternative to Fiddler.

    • API Tester is Free and ProprietaryFiddler is Freemium and Proprietary
  11. ApiClient icon

    ApiClient

     Like
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    Helps you to test the Rest API with your phone including features like import, edit and export postman collections.With this, you don't need to look for your laptop or PC whenever you need to test and modify your REST APIs. You can work on them anytime, on the go.

    Cost / License

    • Freemium (Pay once)
    • Proprietary

    Application type

    Platforms

    • Android
    ApiClient screenshot 1
    ApiClient screenshot 2
    ApiClient screenshot 3
     
  12. RestCase icon

    RestCase

     1 like
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    RestCase is a security-focused API development platform that enables its users to rapidly create secure microservices, mock them in order to start testing, monitor APIs and collaborate on their development and testing.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application type

    Platforms

    • Online
    RestCase screenshot 1
     
10 of 10 Fiddler alternatives