Top 11 Open-Source Alternatives to RegViz

RegViz

Debugging regular expressions visually.

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Product categories

A/B Testing API API Tools Configuration Management Debugging Developer Tools Feature Flags Productivity Programming Tools Proxy Regular Expressions Testing

Summary

The top open-source alternatives to RegViz are Proxyman.io, RegExr, and i Hate Regex. 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.

Proxyman.io Landing Page
1

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
RegExr Landing Page
2

RegExr

RegExr.com is an online tool to learn, build, and test Regular Expressions.
Pricing:
- Open Source
#Productivity #Programming Tools #Development 367 social mentions
i Hate Regex Landing Page
3

i Hate Regex

regex cheatsheet for the haters
Pricing:
- Open Source
#Productivity #Tech #Programming Tools 7 social mentions
httpbin(1) Landing Page
4

httpbin(1)

HTTP request and response service
Pricing:
- Open Source
#Testing #Debugging #Developer Tools 59 social mentions
Rollout Landing Page
5

Rollout

Fix or prevent critical bugs while your app is live.
Pricing:
- Open Source
#Configuration Management #Release Management #Developer Tools
Sonar by Facebook Landing Page
6

Sonar by Facebook

Extensible mobile app debugging for iOS and Android
Pricing:
- Open Source
#Error Tracking #Visual Bug Reports #Exception Monitoring 17 social mentions
HTTP Toolkit Landing Page
7

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
Insomnia REST Landing Page
8

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
HyperDX Landing Page
9

HyperDX

Fix bugs faster with affordable end-to-end webapp monitoring
Pricing:
- Open Source
#CMS #Monitoring Tools #Developer Tools 3 social mentions
Flagsmith Landing Page
10

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
11

Postman

The Collaboration Platform for API Development
Pricing:
- Open Source
#API Tools #Developer Tools #APIs 30 social mentions