Proxyman

Debug HTTP(s) in few clicks

5.0•5 reviews•

32 followers

Debug HTTP(s) in few clicks

5.0•5 reviews•

32 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 Hoppscotch.

Requestly

4.8 ·

Choose Requestly if...

✓you want browser-based setup without certificates
✓you need quick URL rewrites with regex
✓your team shares rules to speed debugging

See details ↓

NetworkSpy

Choose NetworkSpy if...

✓you debug LLM and streaming API traffic
✓you want structured views over raw JSON
✓you need custom viewers shareable via GitHub

See details ↓

Kampala by Zatanna

Choose Kampala by Zatanna if...

✓you must replay authenticated flows deterministically
✓you need to avoid anti-bot fingerprint detection
✓you want automation scripts exposed via MCP

See details ↓

Decoy

Choose Decoy if...

✓you need a local webhook receiver and inspector
✓you want to simulate errors delays redirects easily
✓you prefer a lightweight native app no accounts

See details ↓

Hoppscotch

4.7 ·

Choose Hoppscotch if...

✓you want an API client for REST GraphQL WebSockets
✓you need self-hosting for privacy and compliance
✓you want open-source collaboration around requests

See details ↓

What to Consider

Proxyman is a go-to choice for developers who need a full-featured macOS web debugging proxy—capturing and inspecting HTTP(S) traffic across apps and devices with deep control. But the alternatives landscape is broader than “another MITM proxy”: Requestly leans into low-friction, browser-first rule-based rewriting and team workflows; NetworkSpy focuses on making modern (especially LLM/streaming) traffic understandable with structured viewers; Kampala by Zatanna targets workflow reverse-engineering and deterministic replay automation in bot-sensitive environments; Decoy flips the model with a lightweight local mock server for webhook and failure-mode testing; and Hoppscotch centers on API testing and collaboration with an open-source, self-hostable posture.

In evaluating options, we looked at setup friction (system proxy/certs vs in-browser), how much control you get over rewriting vs inspecting vs mocking, collaboration and shareability for teams, extensibility for domain-specific debugging, platform and privacy considerations (including self-hosting), and overall value across budgets—from lightweight single-purpose tools to power-user suites.

Requestly

Simple & Powerful HTTP Interceptor built for teams

4.8 · 17 reviews

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Requestly shines when the priority is speed and low setup friction, especially for web debugging that lives in the browser. Instead of relying on a full system proxy and certificate installation like Proxyman, it focuses on browser extensions and a companion desktop app to get productive quickly.

Its core strength is rule-based manipulation: rewrite or redirect URLs (including regex), swap endpoints during migrations, and adjust headers to simulate different routing or CDN behaviors. That makes it particularly effective for toggling between staging and production or validating frontend changes against real backends without code edits.

Requestly also leans more team-oriented than classic single-machine proxy tools, with workflows designed around sharing rules and standardizing how requests are modified across environments. If the main need is controlled request rewriting for frontend testing and collaboration rather than full-device traffic capture, it can be the more practical daily driver.

Best for

Best for frontend developers and teams who need fast, shareable request rewriting and environment switching in the browser.

Standout features

✓Browser extension based interception
✓URL rewrite and redirect with regex
✓Header modification rules
✓Environment switching for staging and prod
✓Team sharing for rules and workflows

NetworkSpy

HTTP(s) proxy debugger with custom viewer

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NetworkSpy is built for the moment when raw network logs aren’t the problem—interpretation is. Compared with Proxyman’s general-purpose capture and inspection, it puts structured understanding first, especially for GraphQL, streaming responses, and OpenAI-style APIs.

A standout difference is its purpose-built LLM traffic experience: it can present prompts, tool calls, choices, and streaming chunks in a way that’s easier to reason about than scrolling through large JSON payloads. This is a better fit when debugging is about the semantics of a conversation or stream, not just headers and timings.

Where it gets especially compelling for teams is the Custom Viewer Builder, which lets organizations define their own domain-specific traffic views and share/version them in GitHub. If the goal is consistent, tailored interpretation of complex requests across a team, NetworkSpy offers a more workflow-specific approach than a traditional proxy.

Best for

Ideal for developers and teams debugging LLM, streaming, or domain-specific API traffic who want structured, shareable views.

Standout features

✓Structured LLM request and response viewer
✓Streaming response chunk inspection
✓Custom Viewer Builder for bespoke views
✓GitHub versioned sharing of viewers
✓Designed for complex modern API traffic

Kampala by Zatanna

Reverse engineer websites, mobile, or desktop apps instantly

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Kampala by Zatanna targets a different job than a typical debugging proxy: capturing a workflow once and turning it into deterministic automation. While Proxyman is excellent for inspection and manual debugging, Kampala is designed to help replay authenticated, multi-step flows reliably.

Its positioning is especially relevant for bot-sensitive environments where TLS/HTTP2 fingerprints and subtle client behaviors can trigger blocks. By focusing on preserving fingerprints and reusing existing session tokens and cookies, it aims to keep request-layer automation viable where many MITM-style approaches get detected.

Kampala also emphasizes tooling that surfaces scripts and replay capabilities cleanly, making it more suitable for building repeatable integrations and agents around captured workflows. For reverse engineering, QA automation, or operations teams who need robust replay without full browser automation, it can be the more direct path.

Best for

Best for reverse engineering and automation teams that need deterministic replay of authenticated, bot-protected workflows.

Standout features

✓Deterministic workflow capture and replay
✓Fingerprint preservation for bot-sensitive targets
✓Session token and cookie reuse
✓Automation scripting via MCP integration
✓Request-layer alternative to browser automation

Decoy

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

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Decoy is the better alternative when the problem is not intercepting traffic, but receiving it. Instead of acting like Proxyman’s man-in-the-middle proxy, Decoy runs a local server that captures incoming requests and helps you control responses.

That shift is ideal for webhook development and integration testing: you can see exactly what hits your endpoint and simulate tricky conditions like errors, slow responses, or redirects without spinning up custom apps. It’s also useful for validating clients and automation against stable local endpoints.

Decoy’s appeal is simplicity and focus—a lightweight native tool that avoids the overhead of heavier setups. If you primarily need a fast request inspector and mock responder for inbound traffic, it’s a more direct fit than a full proxy suite.

Best for

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

Standout features

✓Local mock server and request inspector
✓Webhook capture and inspection
✓Simulate errors delays and redirects
✓Lightweight native macOS experience
✓No accounts or subscriptions focus

Hoppscotch

Open source API development ecosystem.

4.7 · 3 reviews

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Hoppscotch is an API client first, making it a natural alternative when capturing live device traffic is less important than authoring requests. Compared with Proxyman’s proxy-centric workflow, it focuses on composing, sending, and iterating on REST, GraphQL, and WebSocket calls with a clean, developer-friendly interface.

The collaboration angle is where it often beats proxy tools: requests can be organized, shared, and standardized across a team so debugging and testing doesn’t depend on reproducing network traffic from a specific machine. For many API-driven products, that repeatability matters more than passive inspection.

Hoppscotch also stands out with an open-source, self-hostable option for organizations that need privacy, control, or compliance-friendly deployments. If the goal is a shared API testing workspace with the option to keep everything on-prem, it’s a more aligned choice than a desktop MITM proxy.