Fiddler

aid: fiddler
name: Fiddler
description: Fiddler by Telerik (Progress Software) is a suite of HTTP debugging proxy tools for capturing, inspecting, modifying,
  and replaying HTTP and HTTPS traffic between computers. The product family includes Fiddler Everywhere (cross-platform),
  Fiddler Classic (Windows), and Fiddler Jam (browser-based collaboration tool) for API debugging, performance testing, and
  web development workflows.
type: Index
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- API Debugging
- HTTP Debugging
- HTTP Proxy
- Performance Testing
- Traffic Inspection
- Web Development
url: https://raw.githubusercontent.com/api-evangelist/fiddler/refs/heads/main/apis.yml
created: '2026-03-26'
modified: '2026-03-26'
specificationVersion: '0.19'
apis:
- aid: fiddler:fiddler-everywhere
  name: Fiddler Everywhere
  description: Fiddler Everywhere is a cross-platform web debugging proxy for macOS, Windows, and Linux. It captures HTTP
    and HTTPS traffic, provides API composition capabilities, and includes collaboration features for team debugging and API
    testing workflows.
  humanURL: https://www.telerik.com/fiddler/fiddler-everywhere
  tags:
  - API Testing
  - Cross Platform
  - HTTP Debugging
  - Traffic Capture
  properties:
  - type: Documentation
    url: https://docs.telerik.com/fiddler-everywhere/introduction
  - type: GettingStarted
    url: https://docs.telerik.com/fiddler-everywhere/get-started/quickstart
  - type: Download
    url: https://www.telerik.com/download/fiddler-everywhere
- aid: fiddler:fiddler-classic
  name: Fiddler Classic
  description: Fiddler Classic is the original free Windows-based HTTP debugging proxy for logging all HTTP and HTTPS traffic
    between a computer and the Internet. It supports traffic inspection, breakpoints, and extensibility through FiddlerScript
    and extensions.
  humanURL: https://www.telerik.com/fiddler/fiddler-classic
  tags:
  - Free Tool
  - HTTP Debugging
  - Traffic Logging
  - Windows
  properties:
  - type: Documentation
    url: https://docs.telerik.com/fiddler/configure-fiddler/tasks/configurefiddler
  - type: Download
    url: https://www.telerik.com/download/fiddler
- aid: fiddler:fiddler-jam
  name: Fiddler Jam
  description: Fiddler Jam is a browser-based troubleshooting solution that enables non-technical users to capture HTTP traffic
    logs and share them with development teams for collaborative debugging of web issues and API problems.
  humanURL: https://www.telerik.com/fiddler/jam
  tags:
  - Browser Extension
  - Collaboration
  - Support
  - Troubleshooting
  properties:
  - type: Documentation
    url: https://docs.telerik.com/fiddler-jam/introduction
common:
- type: GitHubOrganization
  url: https://github.com/fiddler-labs
- type: LinkedIn
  url: https://www.linkedin.com/company/fiddler-ai
- type: Website
  url: https://www.telerik.com/fiddler
- type: Documentation
  url: https://docs.telerik.com/fiddler-everywhere/introduction
- type: Blog
  url: https://www.telerik.com/blogs/fiddler
- type: Pricing
  url: https://www.telerik.com/purchase/fiddler
- type: Download
  url: https://www.telerik.com/download/fiddler-everywhere
- type: Support
  url: https://www.telerik.com/support/fiddler-everywhere
- type: Login
  url: https://www.telerik.com/login
- type: Signup
  url: https://www.telerik.com/login#register
- type: Videos
  url: https://www.youtube.com/c/progresssw
- type: Twitter
  url: https://twitter.com/anthropaboroshi
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com