Instead of HTTP Toolkit
HTTP Toolkit alternatives
HTTP Toolkit is an open-source tool for debugging, testing, and building with HTTP. It captures traffic from supported clients, mobile apps, devices, containers, browser windows, backend processes, and terminal sessions. Search and filtering help locate messages, while formatted views cover request and response details. Breakpoints allow edits, redirects, locally supplied responses, or closed connections. Its free Hobbyist plan includes interception, inspection, and manual breakpoints; Professional adds automated mocking and rewriting, reusable rules, and documentation and validation for built-in APIs.
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Fluxzy
Free plan Open source AndroidAPIiPhone+4Proxyless capture and gRPC or LLM API inspection — Fluxzy captures traffic without proxy configuration and adds gRPC decoding, LLM API inspection, and exports in several formats.
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Moni Proxy
Free plan AndroidiPhoneLinux+2On-device traffic tools and generated data models — Moni Proxy works directly on devices and adds JSON-to-model generation and a built-in utilities toolbox.
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Reqable
Free plan AndroidAPIiPhone+4API testing with collection imports and cloud sync — Reqable adds API testing for HTTP/3 and Server-Sent Events, broad collection imports, and account-based cloud sync.
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Tucano Proxy
Free plan APIExtensionLinux+4Free CLI, terminal, web, and desktop workflows — Tucano Proxy is free and open source, with CLI and terminal interfaces, capture comparison, notes, and coding-agent integrations.
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mitmproxy
Free plan Open source APILinuxMac+3Flexible proxy modes and Python customization — mitmproxy offers multiple proxy modes, three interfaces, and Python addons for changing proxy behavior.
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NetworkSpy
Free plan Open source AndroidAPIiPhone+4AI traffic analysis and custom data viewers — NetworkSpy adds streaming-token and latency analysis, custom viewers, an MCP bridge, and gRPC decoding.
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Probe
Free plan AndroidAPIiPhone+2Visual request automation and AI-agent integrations — Probe combines traffic inspection with visual flows, an API client, an MCP server, and file transfer integrations.
7.3 Visit site - 8
HTTPeep
Free plan LinuxMacWindows - 9
Mediator
Free plan LinuxMacWindows - 10
httpmon
Free plan LinuxMac - 11
Proxyfor
Free plan LinuxMacSelf-hosted+2 - 12
Proxyman
Free plan AndroidAPIiPhone+3 - 13
ProxyHawk
Free plan AndroidiPhoneMac - 14
Sniper
Free plan APIMacSelf-hosted+1 - 15
Rockxy
Free plan iPhoneMac - 16
Charles
Free trial iPhoneLinuxMac+1 - 17
WePROXA
Free plan MacWindows - 18
FiddlerCore
Free trial APILinuxMac+1 - 19
Fiddler Everywhere
Free trial AndroidiPhoneLinux+2 - 20
ProxyBoy
Free plan Windows - 21
Microsoft Dev Proxy
Free plan LinuxMacWindows - 22
HTTP Debugger
Free trial Windows - 23
Requestly
Free trial LinuxMacWindows - 24
Webber
Free trial LinuxMacWindows5.7 Visit site
Some workflows call for capture without proxy settings, specialist protocol analysis, or a different route from mobile devices to desktop tools. Compare capture methods, API testing and automation, replay and export options, certificate requirements, local or cloud storage, and platform coverage. The right alternative depends on which of those capabilities matters most and whether its price and interface suit your work.