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

Visit website

Testing and QA software

•

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, Hoppscotch, Decoy, and ngrok.

Requestly

4.8 ·

Choose Requestly if...

✓you need browser-based header changes and URL redirects
✓you want mocks for parallel frontend and backend development
✓you need a browser extension that supports Firefox

See details ↓

NetworkSpy

Choose NetworkSpy if...

✓you need structured views of OpenAI-compatible streaming traffic
✓you want custom visualizations spanning multiple requests
✓you want to version shared viewers in GitHub

See details ↓

Hoppscotch

4.7 ·

Choose Hoppscotch if...

✓you need API testing rather than traffic interception
✓you want an open-source, self-hostable API testing platform
✓you need collaborative API building, testing, and sharing

See details ↓

Decoy

Choose Decoy if...

✓you need local mocks for errors, delays, and redirects
✓you prefer a focused native macOS mock server
✓you want lifetime pricing for local mocking tools

See details ↓

ngrok

4.5 ·

Choose ngrok if...

✓you need external webhooks to reach localhost
✓you want to share local demos across teams
✓you debug local services connected to cloud systems

See details ↓

What to Consider

Proxyman is a well-known tool for inspecting and debugging HTTP and HTTPS traffic, but its alternatives address several different development needs. Requestly emphasizes browser-based traffic modification, while NetworkSpy specializes in structured views of AI API traffic. Hoppscotch offers open-source, self-hostable API testing, Decoy focuses on native macOS mock services, and ngrok makes local services externally reachable for webhooks and demos—distinct workflows rather than interchangeable proxy replacements.

The evaluation considered workflow fit, setup simplicity, platform coverage, collaboration options, and pricing where evidence was available. It also distinguished independent user feedback from maker-described capabilities, giving greater weight to demonstrated benefits and treating historical complaints as context rather than confirmed current limitations.

Requestly

Simple & Powerful HTTP Interceptor built for teams

4.8 · 17 reviews

Learn more →

Browser-centered traffic modification makes Requestly a strong alternative to Proxyman for frontend debugging and testing. Its browser extension lets developers redirect URLs, change headers, and mock responses when they need to alter application behavior rather than inspect an entire device’s traffic.

URL and regex replacement are particularly useful for switching services, testing vendor migrations, or routing selected requests to staging. Header modification also supports targeted environment changes without requiring application code changes. These capabilities help frontend teams work against controlled responses while backend development continues separately.

Requestly’s open-source positioning and Firefox support add appeal for teams that prioritize browser coverage and extensibility. Desktop interception and API testing extend its scope beyond the extension, although browser-focused routing and mocking remain the clearest reasons to choose it over Proxyman.

Best for

Best for frontend developers and QA teams that need browser-based request modification, environment switching, and response mocking.

Standout features

✓Browser-based header modification
✓URL redirects and regex replacement
✓Response mocking for frontend development
✓Firefox browser extension
✓Desktop interception and API testing

NetworkSpy

HTTP(s) proxy debugger with custom viewer

Learn more →

NetworkSpy puts structured interpretation of AI traffic at the center of network debugging. For developers inspecting OpenAI-compatible completion endpoints, its built-in viewers organize messages, tools, response choices, and streaming chunks instead of leaving everything as raw JSON.

That specialization makes it an alternative to Proxyman when understanding AI payloads matters more than general-purpose traffic inspection. Its Custom Viewer Builder also lets developers create domain-specific representations of individual requests or aggregate multiple inspections into a broader flow. Viewers can be versioned in GitHub and shared so teammates use consistent interpretations of complex traffic.

The trade-off is that a unified agent execution timeline requires custom visualization work rather than appearing automatically in the built-in viewers. NetworkSpy is therefore especially compelling for teams that want tailored AI debugging views and are prepared to build the representations their workflows require.

Best for

Best for AI application developers who need readable streaming API traffic and customizable views across related requests.

Standout features

✓Structured OpenAI-compatible API viewers
✓Streaming chunk inspection
✓Custom Viewer Builder
✓Cross-request traffic visualizations
✓GitHub-versioned, shareable viewers

Hoppscotch

Open source API development ecosystem.

4.7 · 3 reviews

Learn more →

For teams whose real need is API testing rather than traffic interception, Hoppscotch offers a different starting point from Proxyman. It centers on explicitly building, sending, and sharing API requests instead of capturing traffic generated by an existing application.

Its open-source availability and browser-based access make it appealing to developers who want an accessible API workspace. Self-hosting provides an additional deployment option for organizations that want to operate the tooling within their own infrastructure. Real-time API building, testing, and sharing support collaborative workflows rather than treating each request as an isolated debugging task.

Hoppscotch is a strong alternative when manually constructed requests can replace the need to observe live application traffic. It is not a like-for-like replacement for Proxyman’s interception workflow, so its advantage depends on whether API development and team testing are the primary goals.

Best for

Best for developers and teams seeking an open-source, self-hostable workspace for collaborative API development and testing.

Standout features

✓Browser-based API testing
✓Open-source availability
✓Self-hosted deployment
✓Real-time API collaboration
✓Shared API testing workflows

Decoy

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

Learn more →

Decoy takes a focused approach to debugging by turning a Mac into a configurable local mock service. Rather than intercepting a real backend’s responses as in a Proxyman workflow, it lets developers point an application at an endpoint whose behavior they control.

Configurable errors, delays, and redirects make it useful for testing how API wrappers and webhook senders handle difficult conditions. Receiving-end request inspection also helps developers verify exactly what their applications send. This packages a workflow that might otherwise require a small custom mock server into a native macOS app.

Its lifetime-purchase positioning offers a different buying model for users who prefer a one-time payment for local mocking. The narrower scope is the main trade-off: Decoy is not a general HTTPS interception replacement, and remote webhook senders still need a separate route to reach the local endpoint.

Best for

Best for Mac developers who want focused local mock services for webhook inspection and controlled failure testing.

Standout features

✓Native macOS mock server
✓Incoming request inspection
✓Configurable error responses
✓Response delays and redirects
✓Lifetime-purchase pricing model

ngrok

Route and secure traffic to your apps, APIs, and AI models

4.5 · 14 reviews

Learn more →

Making a local service reachable from the internet is ngrok’s defining advantage, rather than capturing outgoing application traffic. It becomes an alternative to Proxyman when the debugging problem starts with getting external requests into a development environment.

Tunnels let third-party webhook providers reach a local server, enabling developers to test integrations against code running on their own machines. The same approach supports workstation-hosted demos and sharing unfinished features across teams. It also helps connect local components to cloud-hosted systems during distributed application debugging.

Compared with Proxyman, ngrok addresses connectivity and inbound access rather than general-purpose HTTPS interception. Pricing deserves attention when custom domains or paid capabilities are important, but its tunneling workflow makes it a strong fit for webhook testing and externally accessible development services.