Fiddler Classic vs Fluxzy

FCFiddler Classic8.5Visit Fluxzy7.9Visit

Higher score FC Fiddler Classic #5 in Local Development Proxy Tools 8.5/10 Free plan Free plan✓ 3 of 4 features Try Fiddler Classic

vs

Fluxzy #7 in Local Development Proxy Tools 7.9/10 Free plan Free plan✓ 1 of 4 features Visit Fluxzy

• Fiddler Classic fits best

  Windows users debugging traffic for non-commercial use

• Fluxzy fits best

  Developers who need protocol depth and a free tier

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Side by side

Feature	FCFiddler Classic 8.5/10 Visit ↗	Fluxzy 7.9/10 Visit ↗
At a glance
Editor score	8.5	7.9
Ranking	#5 in Local Development Proxy Tools	#7 in Local Development Proxy Tools
Best for	Windows users debugging traffic for non-commercial use	Developers who need protocol depth and a free tier
Pricing model	Free	Free plan + paid
Starting price	Free plan	€49/user one-time
Free plan	✓	✓
Free trial	—	—
Deployment	Desktop	Desktop, Self-hosted, Mobile
Platforms	Windows	Windows, macOS, Linux, Android
Support	Community, Docs	Email, Community, Docs
Built for	Solo	Solo, Small business, Mid-market, Enterprise
Features Fiddler Classic 3/4 · Fluxzy 1/4
HTTPS interception	✓ (best)	Not checked yet
Edit requests and responses	✓	✓
Mobile app debugging	Not checked yet	Not checked yet
API debugging tools	✓ (best)	Not checked yet
Specs
Supported platforms	Windows	Not checked yet
Our review
Pros	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	Inspects HTTP(S), WebSockets, gRPC, Protobuf, and raw PCAPNG traffic Supports editing, breakpoints, transformation rules, mocking, and replay Exports to HAR, SAZ, cURL, and .http formats
Cons	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	Community Edition is restricted to personal use Paid licenses remove the personal-use restriction but start at €49 Desktop support is limited to Windows, macOS, and Linux
Our verdict	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 →	Fluxzy is a debugging proxy for developers and security engineers who need to capture, inspect, and change application traffic. Its coverage spans HTTP/1.1, HTTP/2, HTTPS, WebSockets, gRPC, and SOCKS5, with proxy and proxyless capture… Read the review →

Strengths and trade-offs

• 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

• Fluxzy — where it wins

  • Inspects HTTP(S), WebSockets, gRPC, Protobuf, and raw PCAPNG traffic
  • Supports editing, breakpoints, transformation rules, mocking, and replay
  • Exports to HAR, SAZ, cURL, and .http formats

  Where it doesn't

  • Community Edition is restricted to personal use
  • Paid licenses remove the personal-use restriction but start at €49
  • Desktop support is limited to Windows, macOS, and Linux

• FCFiddler Classic8.5/10 · Free plan

  A free Windows proxy for inspecting, composing, mocking, and modifying HTTP(S) traffic.

  Try Fiddler ClassicFull verdict →
• Fluxzy7.9/10 · Free plan

  A protocol-rich debugging proxy with a free personal edition and perpetual paid licenses.

  Visit FluxzyFull verdict →