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RegExr

Write a regex, see matches, and get it explained

Toolora score93Free

Free

Regex101

Write and debug regular expressions live

Toolora score94Free

Free

Postman

Build, test, and share APIs in one workspace

Toolora score90Free tier

Free

Spec	RegExr	Regex101	Postman
Category	Productivity	Productivity	Productivity
Pricing	Free	Free	Free + paid team plans
Toolora score	93/100	94/100	90/100
Best for	regex, testing, cheatsheet, debug	regex, debug, dev, test	api, http, testing, collections
Top features	·Live match highlighting ·Explain and cheatsheet ·JavaScript and PCRE flavors	·Live match highlighter ·Explain mode ·Multiple flavors	·Request builder and collections ·Environments and tests ·API documentation and mocks