Top 6 Open-Source Alternatives to httptools.dev

httptools.dev

Online tools for inspecting and debugging HTTP requests.

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Product categories

A/B Testing API API Clients API Testing API Tools APIs Configuration Management Debugger Debugging Developer APIs Developer Tools Testing

Summary

The top open-source alternatives to httptools.dev are HTTP Toolkit, Flagsmith, and Postman. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

HTTP Toolkit Landing Page
1

HTTP Toolkit

Beautiful, cross-platform & open-source tools to debug, test & build with HTTP(S). One-click setup for browsers, servers, Android, CLI tools, scripts and more.
Pricing:
- Open Source
- Freemium
- €7.0 / Monthly (for a Pro subscription)
#Software Development #Development Tools #Security 27 social mentions
Flagsmith Landing Page
2

Flagsmith

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.
Pricing:
- Open Source
- Freemium
- Free Trial
#A/B Testing #Configuration Management #Developer Tools 13 social mentions
Postman Landing Page
3

Postman

The Collaboration Platform for API Development
Pricing:
- Open Source
#API Tools #Developer Tools #APIs 30 social mentions
Proxyman.io Landing Page
4

Proxyman.io

Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.
Pricing:
- Open Source
- $49.0 / Annually
#Debugging #Developer Tools #Proxy 25 social mentions
Insomnia REST Landing Page
5

Insomnia REST

Design, debug, test, and mock APIs locally, on Git, or cloud. Build better APIs collaboratively for the most popular protocols with a dev‑friendly UI, built-in automation, and an extensible plugin ecosystem.
Pricing:
- Open Source
#API #API Tools #Developer Tools 131 social mentions
Requestly Landing Page
6

Requestly

A Powerful API Mocking and Testing Tool
Pricing:
- Open Source
- Freemium
- Free Trial
#Open Source #Testing #Developer Tools 33 social mentions