Top 12 Open-Source Alternatives to Google Chrome Developer Tools

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Product categories

A/B Testing API API Clients API Tools APIs Debugging Developer Tools Error Tracking Exception Monitoring Proxy Security Software Development

Summary

The top open-source alternatives to Google Chrome Developer Tools are Postman, Proxyman.io, and HTTP Toolkit. 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.

Postman Landing Page
1

Postman

The Collaboration Platform for API Development
Pricing:
- Open Source
#API Tools #Developer Tools #APIs 30 social mentions
Proxyman.io Landing Page
2

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
HTTP Toolkit Landing Page
3

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 26 social mentions
mitmproxy Landing Page
4

mitmproxy

mitmproxy is an SSL-capable man-in-the-middle proxy for HTTP.
Pricing:
- Open Source
#Software Development #Security #Developer Tools 87 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 129 social mentions
Chrome Mobile DevTools Landing Page
6

Chrome Mobile DevTools

Mobile Debugging Tools
Pricing:
- Open Source
#Error Tracking #Exception Monitoring #Developer Tools 9 social mentions
Hoppscotch Landing Page
7

Hoppscotch

Open source API development ecosystem
Pricing:
- Open Source
- Freemium
- Free Trial
#Productivity #API Tools #Developer Tools 92 social mentions
Flagsmith Landing Page
8

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
Buglife Landing Page
9

Buglife

Seriously awesome bug reporting for iOS apps
Pricing:
- Open Source
#Error Tracking #Exception Monitoring #Developer Tools
Arachni Landing Page
10

Arachni

Arachni is a Free/Public-Source Web Application Security Scanner aimed towards helping users evaluate the security of web applications.
Pricing:
- Open Source
#Web Application Security #Security #Monitoring Tools
Sass Landing Page
11

Sass

Syntatically Awesome Style Sheets
Pricing:
- Open Source
#CSS Framework #Web Frameworks #Developer Tools 145 social mentions
GitHub Landing Page
12

GitHub

Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
Pricing:
- Open Source
#Software Development #Version Control #Git 2263 social mentions