HTTP Toolkit
HTTP Toolkit: A broad HTTP debugging proxy for teams working across browsers, apps, containers, and APIs. Ranked #3 of 27 in Web Debugging Proxies by our editors (9.2/10); pricing: Free plan; best for cross-platform teams debugging many client types.
At a glance
- Editor score9.2 / 10
- PricingFree plan
- Best forCross-platform teams debugging many client types
- Free planYes
- Facts checked20 Sep 2026
Where it wins
- Intercepts and edits HTTP, HTTPS, and WebSocket traffic
- Supports mocking, replay, breakpoints, rewrites, and failure injection
- Works across Windows, macOS, Linux, iOS, Android, and browsers
Where it doesn't
- Paid-tier costs are not shown as fixed amounts
- Team workspaces are listed as coming soon
- Its focus is HTTP and HTTPS traffic rather than broader debugging needs
Our verdict on HTTP Toolkit
HTTP Toolkit is an open-source HTTP and HTTPS debugging proxy for developers and testers working across desktop applications, browsers, mobile apps, containers, command-line tools, and backend languages. It combines traffic capture with inspection, filtering, breakpoints, request and response editing, automated rewriting, response mocking, error injection, WebSocket handling, request replay, and a built-in HTTP client. The product is available as a desktop application for Windows, macOS, and Linux, with a hosted browser interface and self-hosting options. It fits cross-platform teams that need one tool for many client types rather than a proxy limited to browser traffic.
The published plans separate core interception from automation and team administration. Hobbyist includes HTTP traffic interception, raw HTTP inspection, manual request and response rewriting, and the built-in HTTP client. Professional adds automated mocking and rewriting, traffic redirection, error injection, HAR and code export, advanced proxy configuration, and API documentation and validation. Team includes Professional features, centralized billing, and transferable team licenses; team workspaces are listed as coming soon. Team pricing is contact-based, so organizations should evaluate the commercial structure alongside their collaboration requirements.
Platform and ecosystem coverage are central strengths. HTTP Toolkit lists integrations for Android, Python, JavaScript, Ruby, Java, Docker, Electron, Chrome, Firefox, cURL, Node.js, and PHP, while its feature set includes proxy chaining, WebSocket inspection, and response bodies served from files. Teams should choose it when debugging spans several runtimes, clients, and deployment environments, or when controlled failures and mocked responses are part of development and testing. It may be a less suitable choice for teams seeking a general-purpose observability platform or fully available team workspaces today.
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HTTP Toolkit pricing
All 3 HTTP Toolkit plans and prices →
HTTP Toolkit fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Platforms | Not verified |
| Request/response editing | Yes |
| Breakpoint rules | Yes |
| Traffic replay | Yes |
| Response mocking | Yes |
| WebSocket inspection | Yes |
| Proxy chaining | Yes |
| Deployment | Cloud, Self-hosted, Desktop, Browser extension |
| Platforms | Web, Windows, macOS, Linux, iOS, Android |
| Support | Email, Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 12 integrations: Android, Python, JavaScript, Ruby, Java, Docker … See all → |
| Pricing | Free plan (source) |
| Website | httptoolkit.com |
| Facts checked | 20 Sep 2026 |
HTTP Toolkit integrations
HTTP Toolkit lists 12 integrations on its own site.
- Android
- Python
- JavaScript
- Ruby
- Java
- Docker
- Electron
- Chrome
- Firefox
- cURL
- Node.js
- PHP
See all HTTP Toolkit integrations →
Alternatives to HTTP Toolkit
- mitmproxyA broad, programmable proxy for debugging HTTP, HTTPS, WebSockets, and related traffic.9.4
- FluxzyA broad debugging proxy with a capable free personal tier and €49 perpetual Pro access.9.3
- Fiddler EverywhereA broad desktop and mobile debugging proxy with replay, mocking, rules, and collaboration.8.9
See all HTTP Toolkit alternatives →
HTTP Toolkit vs the competition
- HTTP Toolkit vs mitmproxy
- HTTP Toolkit vs Fluxzy
- HTTP Toolkit vs Fiddler Everywhere
- HTTP Toolkit vs NetworkSpy
- HTTP Toolkit vs HTTPeep
- HTTP Toolkit vs Whistle
Compare HTTP Toolkit with any tool side by side →
Also Ranked In
HTTP Toolkit is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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