Fiddler Everywhere

Fiddler Everywhere 8.3.0

A secure and modern web debugging proxy to capture, inspect, debug, mock and export HTTP/HTTPS network traffic on macOS, Linux and Windows.

  • By Progress Software Corporation
  • Proprietary
  • Updated Oct 20, 2026
Download for Windows

About Fiddler Everywhere

A secure and modern web debugging proxy to capture, inspect, debug, mock and export HTTP/HTTPS network traffic on macOS, Linux and Windows.

What's new in 8.3.0

New

  • Add support for custom inspectors built for Fiddler Classic on Windows.
  • Add support for GPT-6 models in the Chat Assistant.

Fixed

  • Sanitization does not consistently mask nested JSON and XML values.
  • Removed sanitization keywords continue to mask matching data until the application restarts.
  • The Do Not Show rule action incorrectly changes gateway proxy behavior.
  • Updated third-party dependencies to address potential security vulnerabilities.

Full release notes »

Technical details

PublisherProgress Software Corporation
Version8.3.0
Release date2026-10-20
LicenseProprietary
Installer typenullsoft
Architecturex64
Package IDTelerik.Fiddler.Everywhere

Links & install command

Install Fiddler Everywhere from the command line with Windows Package Manager (winget):

winget install --id=Telerik.Fiddler.Everywhere -e

capturedebugnetworkproxyrequestresponsetrafficweb

Older versions

  • 8.2.0
  • 8.1.0
  • 8.0.2
  • 8.0.1
  • 7.8.0
  • 7.7.3
  • 7.7.2
  • 7.7.1
  • 7.7.0