Proxyman

Debug HTTP(s) in few clicks

5.0•5 reviews•

27 followers

Debug HTTP(s) in few clicks

5.0•5 reviews•

27 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 NetworkSpy, Requestly, Kampala by Zatanna, Ngrok, and Decoy.

NetworkSpy

Choose NetworkSpy if...

✓you debug OpenAI chat and streaming responses
✓you want custom traffic viewers in GitHub
✓you need shared, domain-specific inspection views

See details ↓

Requestly

4.8 ·

Choose Requestly if...

✓you want browser-based interception without certificates
✓you frequently swap URLs with regex rules
✓you need session replay for faster bug triage

See details ↓

Kampala by Zatanna

Choose Kampala by Zatanna if...

✓you capture SSO and MFA authenticated workflows
✓you automate request flows instead of UI scripts
✓you must avoid anti-bot fingerprint detection

See details ↓

Ngrok

4.5 ·

Choose Ngrok if...

✓you need public tunnels to localhost quickly
✓you debug webhooks against a local server
✓you share live demos from your machine

See details ↓

Decoy

Choose Decoy if...

✓you need a local webhook inspector and mock
✓you want native macOS without Docker
✓you simulate errors, timeouts, and redirects

See details ↓

What to Consider

Proxyman is a go-to choice for macOS developers who want a polished, general-purpose HTTPS debugging proxy for inspecting, rewriting, and testing API traffic. But the alternatives split into distinct camps: NetworkSpy leans into LLM-first inspection with structured views for chat/completions and a shareable, Git-versioned viewer layer; Requestly prioritizes browser-native interception and rule-based rewrites plus team-friendly session replay; Kampala by Zatanna focuses on capturing authenticated workflows for deterministic automation with an eye toward anti-bot fingerprint preservation; and tools like Ngrok and Decoy complement (rather than replace) proxying by solving adjacent needs like public tunnels for webhooks/demos and lightweight local mock endpoints.

In evaluating these options, the key considerations were setup friction (system proxy/certs vs browser-based flows), depth of traffic visualization (raw HTTP vs domain-specific viewers like LLM payloads), request rewriting and replay/automation capabilities, collaboration and sharing (including session replay and versioned viewers), and practical constraints like pricing, reliability, and support for common developer workflows such as webhooks, staging/prod switching, and demos.

NetworkSpy

HTTP(s) proxy debugger with custom viewer

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LLM-focused traffic inspection is where NetworkSpy really separates from Proxyman’s general-purpose proxy workflow. Instead of forcing teams to sift through raw JSON, it provides purpose-built viewers for OpenAI-style /completions and /chat/completions requests, making it easier to see messages, tool calls, choices, and streaming chunks in a structured way.

The bigger differentiator is its extensible viewer layer. Teams can build custom viewers that visualize their own domain conventions, aggregate multiple related requests into a single “story,” and standardize how everyone inspects traffic. That makes NetworkSpy a strong fit when debugging requires shared context beyond filters and search.

Collaboration is treated like software delivery: custom viewers can be versioned and shared via GitHub, which helps teams keep debugging tooling consistent across environments and projects. If Proxyman feels optimized for individual debugging sessions, NetworkSpy is compelling when the inspection UI itself becomes a team asset that evolves over time.

Best for

Best for teams building LLM-powered apps that need shared, structured debugging views for chat and streaming traffic.

Standout features

✓Structured OpenAI chat and completions viewers
✓Streaming chunk visualization
✓Custom viewer builder for domain-specific views
✓GitHub versioning and team sharing

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 be lower-friction than a classic system-proxy setup. For many frontend workflows, it’s faster to drop in rules directly where traffic originates (the browser) and start modifying requests immediately.

Its strength is rule-driven manipulation: swapping URLs, running regex replacements, and toggling environments is a primary workflow rather than an afterthought. That makes it particularly effective for migrations, quick A/B routing changes, and validating how an app behaves against staging versus production without changing code.

Requestly also extends beyond request tweaking with team-oriented debugging features like session replay, capturing the context needed to triage issues without a perfect reproduction on a developer machine. If Proxyman is the better fit for deep, system-wide proxying, Requestly often wins when speed, repeatable rewrite rules, and browser-first debugging matter most.

Best for

Ideal for frontend teams who want fast browser-based request rewriting and shareable debugging context.

Standout features

✓Browser-based interception and overrides
✓URL swapping and regex rewrite rules
✓Header modification for environment switching
✓Session replay for faster bug reproduction

Kampala by Zatanna

Reverse engineer websites, mobile, or desktop apps instantly

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Automation-first reverse engineering is the core reason to look at Kampala by Zatanna instead of a traditional debugging proxy like Proxyman. It’s designed to capture real workflows and turn observed request sequences into deterministic, scriptable automation—useful when UI automation is brittle or too slow to maintain.

Kampala is built with authenticated flows in mind, including scenarios that involve SSO, session tokens, and MFA. Rather than stopping at “inspect and edit,” it aims to help teams reliably replay what happened in the browser and operationalize it as an integration.

A notable focus is staying robust against strict anti-bot systems by preserving network fingerprints that can otherwise get altered during interception. For teams trying to automate access to legacy dashboards or protected web apps, that emphasis can be the deciding factor compared with general-purpose proxies.

Best for

Best for engineers automating complex authenticated web workflows where anti-bot defenses matter.

Standout features

✓Workflow capture and deterministic replay
✓SSO and MFA-aware session handling
✓Fingerprint-preserving proxying approach
✓Agent/MCP-friendly scripting exposure

Ngrok

Secure introspectable tunnels to localhost

4.5 · 13 reviews

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Inbound connectivity is the key gap ngrok fills that Proxyman doesn’t try to solve. Instead of focusing on intercepting outbound client traffic, ngrok creates secure public tunnels to local services, which is invaluable when external systems need to reach a developer machine.

That translates directly into smoother webhook development: services can send real events to localhost, and teams can iterate without deploying temporary environments. It’s also a practical tool for sharing live demos of local builds with teammates or customers when a staging environment isn’t ready.

If Proxyman is the right tool for “what is my app sending?”, ngrok is often the right tool for “how can the internet reach my local app?”. Many teams end up using them side by side: ngrok for exposure and webhook flows, and a proxy tool for deep request/response inspection.

Best for

Ideal for developers who need public tunnels for webhooks, demos, and local testing.

Standout features

✓Secure public tunnels to localhost
✓Webhook testing against local environments
✓Shareable demo URLs
✓Simple setup with clear UI and docs

Decoy

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

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Decoy focuses on the receiving end of development: spinning up local endpoints to inspect incoming requests and mock responses. That makes it a strong alternative when the goal isn’t decrypting device traffic like Proxyman, but quickly validating what webhooks and callbacks actually send.

It’s built to stay lightweight and native on macOS, avoiding the overhead of Dockerized mock stacks or heavy desktop shells. For developers who routinely create ad-hoc servers just to print payloads or return canned JSON, Decoy can replace that glue work with a faster, more repeatable workflow.

Decoy also emphasizes realistic testing conditions by making it easy to simulate failure modes like errors, timeouts, and redirects. If Proxyman excels at tracing and rewriting outbound calls, Decoy is the better fit when local mocking and webhook inspection are the main job.