Fluxzy

7.2easy start · #5 of 27
in Web Debugging Proxies

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you workyes

Runs on Android, api, iOS, Linux, Mac, self-hosted, Windows.

Fluxzy is ranked #5 of 27 in web debugging proxies on The Geeks Club. It runs on Android, API, iOS, Linux, macOS, Self-hosted, Windows. There is a free plan.

Fluxzy plans and pricing

All plans

Community Edition Free Personal use · x-fluxzy-community header · all features included fluxzy.io · 30 Sept 2026

Pro (Perpetual) €49 once Pay once, own forever One developer · No personal-use restriction · Windows, macOS, Linux fluxzy.io · 30 Sept 2026

Enterprise (Perpetual) €59 once One-time payment Minimum 3 seats · €59/seat for 1–9 · €49/seat for 10–49 · €39/seat for 50+ fluxzy.io · 30 Sept 2026

Compared on web debugging proxies

Free plan: Yes
Request/response editing: Yes
Breakpoint rules: Yes
Traffic replay: Yes
Response mocking: Yes
WebSocket inspection: Yes
Proxy chaining: Yes

Best Fluxzy alternatives

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NetworkSpy 0 of 4 in the starter kit Lesson 17.9 HTTP Toolkit 0 of 4 in the starter kit Lesson 27.5 Reqable 0 of 4 in the starter kit Lesson 37.5 mitmproxy 0 of 4 in the starter kit Lesson 47.3 Proxyman 0 of 4 in the starter kit Lesson 67.2 Charles 0 of 4 in the starter kit Lesson 77.1

The record

What it does: Fluxzy is an HTTP intermediate and man-in-the-middle proxy for recording, analyzing, debugging, and altering HTTP/1.1, HTTP/2, and WebSocket traffic over plain or secure channels.
Proxyless capture: Proxyless capture records applications’ HTTP and HTTPS traffic without proxy configuration, including apps that ignore system proxy settings.
Traffic modification: Rules can modify request and response headers, inject authentication, simulate slow networks, forward requests, spoof DNS, change TLS fingerprints, and force HTTP versions.
gRPC debugging: Fluxzy decodes gRPC and Protobuf traffic with schema-less decoding or real field names supplied from .proto files.
LLM API inspection: Fluxzy can capture and inspect OpenAI, Anthropic, and Google Gemini API requests and responses, including streaming responses and tool calls.
Exports: Fluxzy exports captures as HAR, Fiddler SAZ, PCAPNG for Wireshark, cURL commands, .http files, and native .fxzy files.
Integrations: Official NuGet packages provide Fluxzy engine access for .NET Standard 2.1, .NET 6, and .NET 8 applications.
Offline and telemetry: Fluxzy works offline without an account or cloud sync, and the site states that it has no telemetry.
Open-source status: Fluxzy.Core is open source under GPLv3, while the Fluxzy Desktop application is not open source.
Binary security: Desktop downloads publish SHA-256 checksums, CLI downloads publish SHA-512 checksums, Windows binaries are Authenticode-signed, and macOS builds are Apple-signed and notarized.
Mobile capture: Fluxzy Connect captures Android app traffic through a local VPN, while iOS apps can be routed to the proxy for inspection.
License limits: The free Community edition is intended for personal use and adds an x-fluxzy-community header; paid licenses remove that header and the personal-use restriction.
Refund policy: Fluxzy offers a full refund when contacted within 14 days of purchase.
Audience: Fluxzy describes itself as a debugging tool for developers and security engineers.
Price from: Free

Where it ranks on The Geeks Club

Best Web Debugging Proxies in 2026#5 of 27

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Sources

fluxzy.io/resources/documentation/overview· checked 30 Sept 2026
fluxzy.io/features/transparent-capture· checked 30 Sept 2026
fluxzy.io/features· checked 30 Sept 2026
fluxzy.io· checked 30 Sept 2026
fluxzy.io/download· checked 30 Sept 2026
fluxzy.io/pricing· checked 30 Sept 2026