Life & fun · alternatives · 2026

24 alternatives to Regex 101

Online regex tester and debugger

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Regex 101 launched in 2016; newer entries below may have overtaken it.

1
RegExr 2.0▲101
Online tool to learn, build, & test Regular Expressions
2014 · regexr.com · its alternatives →
2
RegViz▲84
Debugging regular expressions visually
2015 · regviz.org · its alternatives →
3
Regex Tester Pro▲6
Online regular expression testing tool
2025 · its alternatives →
4
Online Regex Tester for PHP, PCRE, Python, Golang and JavaScript▲21
Online regex tester and debugger with real-time match highlighting, detailed explanations, substitutions, unit tests, benchmarking, and code generation. Supports PCRE2, JavaScript, Python, Go, Java, .NET, Rust, POSIX ERE, and POSIX BRE.
2018 · regex101.com · its alternatives →
5
Regex Cheatsheet▲499
A modern regular expression playground with live matching, visual railroad diagrams, rich notes, and easy sharing.
2020 · ihateregex.io · its alternatives →
6
Regulex▲167
Visualize Regular Expressions using Javascript
2015 · jex.im · its alternatives →
7
RegexLearn▲336
Learn RegEx step by step, from zero to advanced
2021 · regexlearn.com · its alternatives →
8
Get Regex▲140
Get a custom regex expression made within 1 hour
2016 · getregex.com · its alternatives →
9
UltimateRegexResource▲113
Regex syntax and resources to power up your programming
2021 · github.com · its alternatives →
10
RegexOne▲9
Learn regex with simple, interactive exercises.
2016 · regexone.com · its alternatives →
11
Regxr▲151
A minimal, lightweight MacOS desktop app for RegEx
2018 · github.com · its alternatives →
12
Chrome Experiments▲137
Showcase of web experiments written by creative coders
2015 · experiments.withgoogle.com · its alternatives →
13
Regex library▲276
A curated list of most commonly used regular expressions
2022 · uibakery.io · its alternatives →
14
Regex Crossword▲65
Welcome to the fantastic world of nerdy regex fun!
2016 · regexcrossword.com · its alternatives →
15
Regex.ai – AI-powered regular expression generator▲294
Regex.ai is an AI-powered tool that generates regular expressions. It can accurately generate regular expressions that match specific patterns in text with precision. Whether you're a novice or an expert, Regex.ai's intuitive interface makes it easy to input sample text and generate complex regular expressions quickly and efficiently. Overall, Regex.ai is a game-changer that will save you time and streamline your workflow.
2023 · regex.ai · its alternatives →
16
TypeWonder▲106
Test web fonts on any site
2014 · namecheap.com · its alternatives →
17
Simply Testable▲105
Free one-click full-site frontend web testing
2014 · its alternatives →
18
Expressions▲233
An app to play with regular expressions. Easily and nicely.
2016 · apptorium.com · its alternatives →
19
Test Cafe▲92
Automated browser testing
2016 · devexpress.github.io · its alternatives →
20
A minimal, native MacOS desktop app for checking regex matches▲39
2018 · github.com · its alternatives →
21
Analyze My Writing▲160
Text content and readability analyzer
2015 · analyzemywriting.com · its alternatives →
22
PostScripting▲111
Proofreading and editing done right
2015 · postscripting.net · its alternatives →
23
Harness▲63
Automated Tests For Your Web App
2014 · harness.io · its alternatives →
24
RegEx Helper▲112
Free AI powered RegEx generator
2024 · regex.fav83.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →