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Regular Expressions
Regex
What are the best regular expression (regex) testing tools?
24
Options
Considered
122
User
Recs.
Nov 22, 2023
Last
Updated
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24
Options
Considered
Best regular expression (regex) testing tools
Price
Platforms
Last Updated
83
Regex 101
Free
Web
Nov 22, 2023
--
Regex Pal
Free
-
May 23, 2023
--
RegExr
FREE
Web
Apr 6, 2023
--
Expresso
Free
Windows
Apr 12, 2023
--
ExtendsClass Regex Tester
Free
Web
Jul 28, 2022
See Full List
83
Regex 101
My Rec
ommendation
for
Regex 101
My Recommendation for
Regex 101
All
10
Experiences
1
Pros
7
Cons
1
Specs
Top
Pro
•••
Code generator
Can generate C#, Java, JavaScript, Go, Python code etc.
See More
Top
Con
•••
Slow with large data
See More
RickZeeland's Experience
Can generate C#, Java, JavaScript, Go, Python code etc.
See More
Specs
Platforms:
Web
Top
Pro
•••
Color-codes capture groups
See More
Top
Pro
•••
Easy to use UI
See More
Top
Pro
•••
Regex library
Searchable community patterns.
See More
Top
Pro
•••
Debugger
See More
Top
Pro
•••
Performance
Good performance with data.
See More
Top
Pro
•••
Fun regex quiz
See More
Hide
See All
Free
Recommend
44
1
--
Regex Pal
My Rec
ommendation
for
Regex Pal
My Recommendation for
Regex Pal
All
1
Pros
1
Top
Pro
•••
Syntax highlighting that alternates between shades
This makes it much easier to deal with metacharacters that would normally seem ambiguous.
See More
Hide
Free
Recommend
10
--
RegExr
My Rec
ommendation
for
RegExr
My Recommendation for
RegExr
All
7
Experiences
2
Pros
3
Cons
1
Specs
Top
Pro
•••
OAUTH2 registration via GitHub
No need to create unique site credentials, just authorize using your GitHub account and gain access to being able to save your patterns.
See More
Top
Con
•••
Does not color-code capture groups
See More
Peter J. Mello's Experience
I love this site, I've never seen a better cheat sheet for regular expressions anywhere and its performance is top-notch, probably because it's also not crawling with advertisements everywhere. The developer is just a super-decent human being in the interactions I've had with him.
See More
Specs
Platforms:
Web
Top
Pro
•••
Examples
Lots of examples added by users, e.g. for phone numbers.
See More
RickZeeland's Experience
Excellent online Regex tool, intended for Javascript but I found the expressions can also be used for .NET. Gives a nice explanation by hovering over the expression with the mouse.
See More
Top
Pro
•••
Useful replacement features
See More
Hide
See All
FREE
Recommend
12
2
--
Expresso
My Rec
ommendation
for
Expresso
My Recommendation for
Expresso
All
12
Experiences
1
Pros
4
Cons
6
Specs
Top
Pro
•••
If offers a really neat way of constructing your regular expressions, without forcing you to remember every single regex option from memory
See More
Top
Con
•••
It only supports the .Net flavor
See More
CaffeinatedBolina's Experience
It is a really good tool to have around, when writing or learning RegEx.
See More
Specs
Platforms:
Windows
Top
Pro
•••
Easy to use
See More
Top
Con
•••
No dark theme
See More
Top
Pro
•••
Contains expression library
See More
Top
Con
•••
Rarely updated
See More
Top
Pro
•••
Includes performance testing
See More
Top
Con
•••
Windows only
See More
Top
Con
•••
On Windows 10 the font is slightly fuzzy
Needs to be rebuilt with a newer version of the .NET Framework.
See More
Top
Con
•••
Lags behind .NET Framework
See More
Hide
See All
Free
Recommend
12
3
--
ExtendsClass Regex Tester
My Rec
ommendation
for
ExtendsClass Regex Tester
My Recommendation for
ExtendsClass Regex Tester
All
8
Experiences
6
Pros
1
Specs
Top
Pro
•••
String generator
See More
KnowledgeableLugh's Experience
Best regex tester
See More
Specs
Platforms:
Web
AffableChimalma's Experience
There is a nice regex visualizer !
See More
JoyfulSogbo's Experience
I love the regex visualizer!
See More
OptimisticAdephagia's Experience
I love the regex visualizer
See More
FearlessEileithyia's Experience
The regex visualizer is great!
See More
RealisticRosmerta's Experience
The regex visualizer is very nice!
See More
Hide
See All
Free
Recommend
17
--
Regex Editor
My Rec
ommendation
for
Regex Editor
My Recommendation for
Regex Editor
All
3
Experiences
1
Pros
1
Specs
Top
Pro
•••
Free
Free and open-source.
See More
RickZeeland's Experience
Visual Studio extension to edit and test regular expressions.
See More
Specs
Platforms:
VS extension
Hide
See All
Free
Recommend
4
--
Regex Hero
My Rec
ommendation
for
Regex Hero
My Recommendation for
Regex Hero
All
1
Specs
Specs
Platforms:
Web, Windows
Hide
Free
Recommend
3
--
Regex Workbench
My Rec
ommendation
for
Regex Workbench
My Recommendation for
Regex Workbench
All
4
Pros
2
Cons
1
Specs
Top
Con
•••
Delay on startup
Takes several seconds to start.
See More
Top
Pro
•••
VS Code add-on
See More
Specs
Platforms:
VS Code add-on
Top
Pro
•••
Free
See More
Hide
See All
Free
Recommend
4
--
Rubular
My Rec
ommendation
for
Rubular
My Recommendation for
Rubular
All
2
Pros
2
Top
Pro
•••
Clean UX
See More
Top
Pro
•••
Includes a cheat sheet
See More
Hide
Free
Recommend
2
--
RegexBuddy
My Rec
ommendation
for
RegexBuddy
My Recommendation for
RegexBuddy
All
7
Experiences
1
Pros
4
Cons
1
Specs
Top
Pro
•••
Regex debugger
Includes a regex debugger to find problems in a regular expression.
See More
Top
Con
•••
Windows only
Unfortunately Windows only.
See More
Mike's Experience
Easily create, understand, test and debug regex expressions in different flavors.
See More
Specs
Platforms:
Windows
Top
Pro
•••
Pattern Library
Includes a comprehensive regex pattern library.
See More
Top
Pro
•••
Different regex flavors
Supports PCRE, Perl, Python, GNU, and many more regex flavors.
See More
Top
Pro
•••
Regex analysis
Analysis screen which explains how the regex works.
See More
Hide
See All
€ 29.95
Recommend
2
--
Regex Storm
My Rec
ommendation
for
Regex Storm
My Recommendation for
Regex Storm
All
2
Cons
1
Specs
Top
Con
•••
Old ASP
Written in classic ASP and .NET 4.0.
See More
Specs
Platforms:
Web
Hide
Free
Recommend
1
--
ViRE – Visual Regular Expression
My Rec
ommendation
for
ViRE – Visual Regular Expression
My Recommendation for
ViRE – Visual Regular Expression
All
10
Experiences
1
Pros
7
Cons
2
Top
Pro
•••
Versatile
ViRE can be used for a wide range of tasks that involve regular expressions, including data cleaning, text processing, and web scraping.
See More
Top
Con
•••
Mac or iPad only
Have a limit to only those platforms.
See More
FlexibleResheph's Experience
Easy to read RegEx as it shown visually in new way never seen before. Also it has few more great options: unit tests, step-by-step replacement and my most lovely is Code Complete.
See More
Top
Pro
•••
Free to try and use most of functionality
ViRE is available for free and can be downloaded and installed on macOS. This makes it accessible to a wide range of users who need to work with regular expressions.
See More
Top
Con
•••
Pricing
As the tool is great, but price a little bit high. But it can save a lot of time for sure. So might be not so high if you need to use it a lot.
See More
Top
Pro
•••
Offline use
ViRE can be used offline, which means that users can work with regular expressions even when they don't have an internet connection.
See More
Top
Pro
•••
Real-time feedback
ViRE provides real-time feedback on the validity of the regular expression as the user builds it. This can save a lot of time and frustration compared to traditional regex tools where you have to test the expression separately. Versatile: ViRE can be used for a wide range of tasks that involve regular expressions, including data cleaning, text processing, and web scraping.
See More
Top
Pro
•••
Interactive tutorial
ViRE includes an interactive tutorial that helps users learn how to use regular expressions effectively. The tutorial is designed to be interactive and engaging, making it easier for users to retain what they learn.
See More
Top
Pro
•••
Real-time testing
ViRE provides real-time testing of regular expressions, so users can immediately see the results of their regex patterns.
See More
Top
Pro
•••
User-Friendly interface
ViRE has a clean and easy-to-use interface that makes it easy for beginners to understand and use.
See More
Hide
See All
Get it
here
Recommend
1
--
Aba Search and Replace
My Rec
ommendation
for
Aba Search and Replace
My Recommendation for
Aba Search and Replace
All
5
Pros
4
Cons
1
Top
Pro
•••
Preview
See More
Top
Con
•••
Not all regex features are supported
See More
Top
Pro
•••
Unicode and different codepages support (UTF-16, UTF-8)
See More
Top
Pro
•••
Command-line support
See More
Top
Pro
•••
Undo
See More
Hide
See All
30
Recommend
2
--
RexV
My Rec
ommendation
for
RexV
My Recommendation for
RexV
Hide
Get it
here
Recommend
--
Kodos
My Rec
ommendation
for
Kodos
My Recommendation for
Kodos
Hide
Get it
here
Recommend
1
--
Debuggex
My Rec
ommendation
for
Debuggex
My Recommendation for
Debuggex
All
2
Pros
2
Top
Pro
•••
Color-codes capture groups
See More
Top
Pro
•••
Visualizes regex
See More
Hide
Get it
here
Recommend
1
--
RegexpLint
My Rec
ommendation
for
RegexpLint
My Recommendation for
RegexpLint
All
3
Pros
3
Top
Pro
•••
Acts as a linter
See More
Top
Pro
•••
Visualizes regex
See More
Top
Pro
•••
Includes a cheat sheet
See More
Hide
See All
Get it
here
Recommend
--
RegViz
My Rec
ommendation
for
RegViz
My Recommendation for
RegViz
Hide
Get it
here
Recommend
--
refiddle
My Rec
ommendation
for
refiddle
My Recommendation for
refiddle
Hide
Get it
here
Recommend
--
Regulex
My Rec
ommendation
for
Regulex
My Recommendation for
Regulex
All
1
Pros
1
Top
Pro
•••
Visualizes regex 
See More
Hide
Get it
here
Recommend
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