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Head-to-head · Local Development Proxy Tools

Charles vs Fiddler Classic

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Charles #1 in Local Development Proxy Tools 9.2/10 30-day trial Free trial✓ 1 of 4 features Visit Charles
Fiddler Classic #5 in Local Development Proxy Tools 8.5/10 Free plan Free plan✓ 3 of 4 features Try Fiddler Classic

Charles leads on 0 checks, Fiddler Classic on 1, and 3 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCharles · 9.2/10
  • Free planonly Fiddler Classic
  • Free trialonly Charles
  • Most featuresFiddler Classic · 3 of 4

Charles scores higher on our rubric for local development proxy tools: 9.2 against 8.5 out of 10; our editors rank them #1 and #5.

Fiddler Classic offers free plan; Charles doesn't.

Charles is the better fit for teams needing a mature, cross-platform debugging proxy. Fiddler Classic is the better fit for windows users debugging traffic for non-commercial use.

  • Charles fits best

    Teams needing a mature, cross-platform debugging proxy

  • Fiddler Classic fits best

    Windows users debugging traffic for non-commercial use

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. How we rank.

Side by side

Feature Charles 9.2/10 Visit ↗ Fiddler Classic 8.5/10 Visit ↗
At a glance
Editor score 9.2 8.5
Ranking #1 in Local Development Proxy Tools #5 in Local Development Proxy Tools
Best for Teams needing a mature, cross-platform debugging proxy Windows users debugging traffic for non-commercial use
Pricing model Paid Free
Starting price $50/user one-time Free plan
Free plan — ✓ (best)
Free trial 30 days —
Deployment Desktop Desktop
Platforms Windows, macOS, Linux Windows
Support Email, Docs Community, Docs
Built for Solo, Small business, Mid-market, Enterprise Solo
Features Charles 1/4 · Fiddler Classic 3/4
HTTPS interception Not checked yet ✓ (best)
Edit requests and responses ✓ ✓
Mobile app debugging Not checked yet Not checked yet
API debugging tools Not checked yet ✓ (best)
Specs
Supported platforms Not checked yet Windows
Our review
Pros
  • Inspects HTTP, HTTPS, and SOCKS traffic across Windows, macOS, and Linux
  • Breakpoints, editing, replay, rewriting, and local or remote mapping
  • Supports WebSockets, throttling, SSL proxying, and headless operation
  • Logs and inspects HTTP(S) traffic from browsers and desktop apps
  • API Composer lets developers compose HTTP/S requests
  • AutoResponder can mock responses and modify traffic
Cons
  • No separate perpetual free plan
  • Individual licenses are limited to one computer at a time
  • Volume and site pricing may not suit teams seeking subscription billing
  • Windows-only desktop availability limits platform fit
  • Free use is limited to personal and other permitted non-commercial use
  • Maintenance mode means it is not in active development
Our verdict

Charles is a desktop web debugging proxy for developers working with web and networked applications. It records HTTP, HTTPS, and related traffic for inspection of requests, responses, headers, cookies, and bodies. Support for Windows,…

Read the review →

Fiddler Classic is a Windows desktop proxy for developers who need to inspect and debug HTTP(S) traffic from browsers and desktop apps. It logs network traffic and provides tools to compose requests, mock responses, and modify traffic. Its…

Read the review →
  1. CharlesLocal Development Proxy Tools 9.230-day trial
  2. Fiddler ClassicLocal Development Proxy Tools 8.5Free plan

Strengths and trade-offs

  • Charles — where it wins

    • Inspects HTTP, HTTPS, and SOCKS traffic across Windows, macOS, and Linux
    • Breakpoints, editing, replay, rewriting, and local or remote mapping
    • Supports WebSockets, throttling, SSL proxying, and headless operation

    Where it doesn't

    • No separate perpetual free plan
    • Individual licenses are limited to one computer at a time
    • Volume and site pricing may not suit teams seeking subscription billing

  • Fiddler Classic — where it wins

    • Logs and inspects HTTP(S) traffic from browsers and desktop apps
    • API Composer lets developers compose HTTP/S requests
    • AutoResponder can mock responses and modify traffic

    Where it doesn't

    • Windows-only desktop availability limits platform fit
    • Free use is limited to personal and other permitted non-commercial use
    • Maintenance mode means it is not in active development

More comparisons

All local development proxy tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update