1
iHateRegex
ihateregex.ioAlso covers developer tools
Regular expressions can be tested and shared in iHateRegex, a playground with diagrams and notes.
Alternatives
The Best RegExr Alternatives in 2026
24 alternatives5 free · 2 open source
Looking for something like RegExr? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 5 are free or have a free plan and 2 are open source.
Regular expressions can be learned, built, and tested with RegExr, an online editor with reference material.
Top picks at a glance
First suggestioniHateRegexRegular expressions can be tested and shared in iHateRegex…Free or freemium optionDevToysHandle tasks such as JSON formatting, text comparison, and…Open source optionripgrepSearch directories recursively for regular expression…Another optionRegex VisRegex Vis provides a visualizer and editor for exploring…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | iHateRegex | — | Not stated | Web |
| 2 | Regex Vis | — | Not stated | Web |
| 3 | DevToys | Free | Not stated | Linux, macOS, Web |
| 4 | regex101 | — | Not stated | Web |
| 5 | Sift | — | Not stated | Web |
| 6 | ripgrep | — | Yes | — |
| 7 | tl;drLegal | — | Not stated | Web |
| 8 | ReDoc | — | Not stated | Web |
| 9 | Responsively | — | Not stated | Web |
| 10 | Motion | Free | Not stated | iOS, Web |
All RegExr alternatives
2
Regex Vis
regex-vis.comAlso covers developer tools · same kind of online tool
Regex Vis provides a visualizer and editor for exploring regular expressions.
3
Also covers developer tools · same kind of online tool · free
Handle tasks such as JSON formatting, text comparison, and regular expression testing with DevToys, a desktop toolkit.
4
regex101
regex101.comAlso covers developer tools · same kind of online tool
regex101 tests and debugs regular expressions with live matches, explanations, and support for several regex engines.
5
Sift
sift-tool.orgAlso covers developer tools
Search large sets of text with sift, a fast command-line alternative to grep that provides regular expression matching.
6
Also covers developer tools · open source
Search directories recursively for regular expression matches with ripgrep, while respecting gitignore rules.
7
tl;drLegal
tldrlegal.comAlso covers developer tools · same kind of online tool
tl;drLegal summarizes popular software licenses in plain English for quick reference.
8
ReDoc
redocly.github.io/redocAlso covers developer tools · same kind of online tool
Explore the ReDoc interactive demo for OpenAPI-generated API reference documentation.
9
Responsively
responsively.appAlso covers developer tools · same kind of online tool
Responsively App helps developers inspect responsive web designs in a browser built for device previews.
10
Also covers developer tools · same kind of online tool · free
Animations for React, JavaScript, and Vue interfaces can be built with Motion, a library for web projects.
11
Crontab Guru
crontab.guruAlso covers developer tools · same kind of online tool
Crontab Guru provides an editor for creating and checking cron schedule expressions.
12
LangChain Docs
reference.langchain.com/pythonAlso covers developer tools
LangChain’s reference docs cover packages for LangChain, LangGraph, agents, LangSmith, and integrations.
13
Also covers developer tools · open source
The Potato project provides a portable tool for annotating data and research materials.
14
GSAP
gsap.comAlso covers developer tools
Web animations can be built with GSAP, a JavaScript library for creating motion effects.
15
React Native Apps
github.com/ReactNativeNews/React-Native-AppsAlso covers developer tools
Browse a curated list of open-source applications built with React Native in this repository.
16
windML
github.com/cigroup-ol/windmlAlso covers developer tools
Wind data sources can be accessed from Python with windML, a framework built on NumPy, SciPy, scikit-learn, and Matplotlib.
17
Nuklear
github.com/Immediate-Mode-UI/NuklearAlso covers developer tools
Cross-platform graphical user interfaces can be built with Nuklear, a single-header ANSI C library.
18
Also covers developer tools · same kind of online tool · free
App DevTools groups browser-based tools for text, web code, encoding, validation, and data conversion tasks.
19
Also covers developer tools · same kind of online tool
Command Not Found helps users identify which package provides a missing command and how to install it.
20
Also covers developer tools · same kind of online tool · free
WakaTime tracks coding time and AI usage across editors, with views by project and language.
21
editorconfig
editorconfig.orgAlso covers developer tools · same kind of online tool
EditorConfig helps maintain consistent coding styles across different text editors through a shared file format.
22
Markdown Editor
markdown-editor.github.ioAlso covers developer tools · same kind of online tool
This online Markdown editor lets users write Markdown and view rendered examples alongside a tutorial.
23
HexEd.it
hexed.itAlso covers developer tools · same kind of online tool
Inspect and edit binary files in a browser with HexEd.it, a hex editor for hexadecimal data.
24
Also covers developer tools · same kind of online tool · free
Website Carbon Calculator estimates a website’s carbon footprint using the Sustainable Web Design Model.
No alternatives match this filter.
RegExr comparisons
Head-to-head breakdowns for the most common switches.
Alternatives to similar tools
AppDevTools24 alternativesCommand Not Found24 alternativesCarbon Calculator24 alternativesResponsively24 alternativesDevToys24 alternativesReact Native Apps24 alternatives
TopicDeveloper Tools · 423 sites Best-of list8 Best Regex Testing Tools for Matching and Understanding PatternsBest-of list8 Best Documentation Site Generators for Product and Project DocsBest-of list8 Best Free Git GUI Clients in 2026 ListingRegExr details
What is the best alternative to RegExr?
Based on features, tags and platforms, the closest alternatives to RegExr are iHateRegex, Regex Vis, and DevToys.
Is there a free alternative to RegExr?
Yes. DevToys, Motion, and AppDevTools are free or offer a free plan.
Are there open-source alternatives to RegExr?
Yes: ripgrep and Potato.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative