Proxyman

Debug HTTP(s) in few clicks

5.0•5 reviews•

30 followers

Debug HTTP(s) in few clicks

5.0•5 reviews•

30 followers

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Testing and QA software

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Observability tools

Best-in-class native macOS app to Capture, Decrypt, and Mock your HTTP/HTTPS with all advanced debugging tools. Support macOS, iOS, Windows and Linux.

The Best Proxyman Alternatives

The best Proxyman alternatives are Requestly, NetworkSpy, Kampala by Zatanna, Decoy, and Ngrok.

Requestly

4.8 ·

Choose Requestly if...

✓you only need browser-level request interception
✓you want fast redirects and regex rewrites
✓you need session replay for team debugging

See details ↓

NetworkSpy

Choose NetworkSpy if...

✓you debug llm requests and streaming responses
✓you want structured viewers for chat completions
✓you need shareable custom viewers via github

See details ↓

Kampala by Zatanna

Choose Kampala by Zatanna if...

✓you must automate authenticated workflows from captured traffic
✓you need fingerprint-preserving requests to avoid detection
✓you want request-sequence replay turned into scripts

See details ↓

Decoy

Choose Decoy if...

✓you need a local mock server for webhooks
✓you want to simulate errors latency and redirects
✓you prefer a lightweight native macos app

See details ↓

Ngrok

4.5 ·

Choose Ngrok if...

✓you must expose localhost publicly for webhooks
✓you need quick demos from a local machine
✓you want an ingress platform for kubernetes

See details ↓

What to Consider

Proxyman is a go-to choice for developers who want a powerful, system-wide macOS debugging proxy for intercepting and inspecting HTTP(S) traffic. But the alternatives landscape is broader than classic MITM tooling: Requestly takes a browser-native route with quick rewrites and team-friendly session replay, NetworkSpy focuses on higher-level inspection for LLM and streaming API traffic, and Kampala by Zatanna leans into capturing workflows for deterministic automation where anti-bot fingerprinting matters. On the other end of the spectrum, Decoy prioritizes lightweight local mocking and webhook inspection, while ngrok is less about interception and more about safely exposing localhost to the internet for inbound testing and demos.

In evaluating options, we weighed setup friction and day-to-day UX, how well each tool supports collaboration and sharing (replays, reusable viewers), the depth of traffic manipulation vs. mocking vs. tunneling capabilities, and how specialized each product is for modern needs like AI requests or authenticated workflow replay. We also considered pricing posture and trust factors (like open-source signals and account requirements), plus how well each tool scales from solo debugging to team and platform workflows.

Requestly

Simple & Powerful HTTP Interceptor built for teams

4.8 · 17 reviews

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Requestly takes a browser-native approach to interception and rewriting, which can feel dramatically lighter than configuring an OS-level proxy. For teams focused on web apps, it shines when the main job is tweaking how the browser talks to APIs rather than capturing every process on the machine.

Its core strength is fast request manipulation: redirecting URLs, applying regex-based replacements, and editing headers to switch between staging and production without code changes. That makes it especially handy for migrations, vendor swaps, and environment toggles where speed matters more than deep packet-level diagnostics.

Requestly also leans into collaboration with Session Replay, making it easier to hand off a reproducible network timeline across teammates. Add cross-browser coverage and an open-source posture, and it becomes a strong alternative to Proxyman when the workflow lives primarily inside the browser and needs quick, shareable debugging.

Best for

Best for frontend teams who primarily debug and modify browser traffic across environments.

Standout features

✓Browser extension-based interception
✓URL redirects and regex rewrites
✓Header modifications for environment routing
✓Session replay for sharing reproductions
✓Cross-browser support including Firefox

NetworkSpy

HTTP(s) proxy debugger with custom viewer

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NetworkSpy stands out by treating AI traffic as a first-class citizen instead of just another JSON payload. If the day-to-day work involves OpenAI-compatible chat and completions endpoints, it provides higher-level views that are easier to reason about than raw request and response bodies.

A key advantage over a general-purpose proxy is how it organizes LLM concepts like messages, tools, choices, and streaming chunks into structured viewers. That helps debug prompt formatting, tool-calling behavior, and partial outputs without constantly scrolling through nested objects.

Where it goes beyond typical inspection is extensibility: a custom viewer builder lets teams create organization-specific visualizations and share them, versioned in GitHub. For AI-focused development, this approach can be a better fit than Proxyman when clarity and standardization of LLM debugging matter more than broad, system-wide capture.

Best for

Ideal for AI product teams debugging LLM calls and streaming responses at high velocity.

Standout features

✓Structured chat and completions viewers
✓Streaming chunk inspection
✓Custom viewer builder
✓Version and share viewers via GitHub
✓OpenAI-compatible traffic focus

Kampala by Zatanna

Reverse engineer websites, mobile, or desktop apps instantly

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Kampala by Zatanna is geared toward capturing workflows and turning them into deterministic automation, not just inspecting traffic. It’s an alternative to Proxyman when the end goal is replayable, scriptable behavior across complex authenticated flows rather than one-off debugging.

A major differentiator is its emphasis on preserving network fingerprints to reduce anti-bot detection risk. That makes it compelling for scenarios where traditional MITM approaches can inadvertently alter TLS or HTTP/2 characteristics and trigger defenses.

Kampala also focuses on extracting value from real sessions by leveraging existing cookies and session tokens, then translating captured sequences into scripts and APIs via an agent-style harness. For integration work against strict, authentication-heavy systems, it can outperform a general debugging proxy by prioritizing repeatability and workflow construction over manual inspection.

Best for

Best for teams reverse-engineering and automating authenticated workflows that resist browser automation.

Standout features

✓Workflow capture and deterministic replay
✓Fingerprint-preserving request execution
✓Session token and cookie reuse
✓Turns sequences into scripts and APIs
✓Automation-oriented MITM proxy

Decoy

Local server mocks in macOS, all in a lightweight native app

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Decoy approaches the problem from the receiving side: it’s built to mock endpoints and inspect inbound requests locally. That makes it a strong alternative to Proxyman when the priority is testing how an app behaves under controlled server responses rather than intercepting third-party HTTPS traffic.

It’s particularly useful for webhook development, where developers need quick visibility into payloads and headers and a simple way to respond with specific status codes. Simulating redirects, latency, and error conditions helps validate retries, timeouts, and edge cases without spinning up ad-hoc servers.

The lightweight, native macOS feel is part of the appeal, especially for teams that want a focused tool instead of heavier stacks or account-based platforms. If Proxyman is the lens for observing outbound calls, Decoy is the sandbox for shaping inbound behavior and testing resilience.

Best for

Ideal for developers building webhooks who need fast local mocking and inspection.

Standout features

✓Local mock endpoints
✓Webhook request inspector
✓Simulated latency and error responses
✓Redirect and timeout testing
✓Native macOS app experience

Ngrok

Secure introspectable tunnels to localhost

4.5 · 14 reviews

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ngrok solves a different but adjacent problem: getting traffic into your local machine from the public internet. Compared with Proxyman’s emphasis on intercepting outbound client requests, ngrok is the go-to alternative when the main need is inbound connectivity for webhooks, demos, and external integrations.

It excels at spinning up secure tunnels quickly so services can call back into localhost without firewall gymnastics. Built-in traffic inspection and replay help debug webhook deliveries and validate endpoints during development.

Beyond individual developers, ngrok can also act as a platform component with more advanced ingress capabilities and controls. For teams that need reliable public exposure, access restrictions, and a smoother path from local testing to shared environments, ngrok is often the better fit than a pure debugging proxy.