Regex visualizer

Visual editor and tester

From the open-source project Regex Vis

Write and fix regular expressions without the guesswork.

Make it mineTry it (opens the authors’ own copy in a new tab)

“Make it mine” asks you to sign in first. On the Free plan, your copy is your one app; you can delete it any time.
“Try it” opens the authors’ own copy, not yours.

Made by
Bowen7
Licence
MIT
Popularity
4.4k stars on GitHub
Uses
Just a browser

What you can do

  • See a regular expression drawn as a diagram
  • Change the pattern by editing the diagram
  • Test it on sample text and see what matches

Who it’s forDevelopers who write or read regular expressions

Once it’s yours

  • Your own copy, at its own address
  • Anyone with its address can open it, until you choose who can
  • Change it with your own coding agent

Ideas for changing it

Once it’s live, give any line below to your coding agent.

  • Add a list of common patterns, like email and phone number

  • Remember my last regex so it is there next time

  • Use a larger font in the diagram

Source and licence

It comes from the open-source project Regex Vis: its authors, Bowen7, published the code for anyone to use and change. Its licence covers the code, not the name, so the copy on Tofu goes by a plain name.

Its licence, MIT, lets you use and change it freely, as long as you keep the authors’ copyright notice.

Your copy is the version you copied; the authors’ later updates don’t arrive by themselves.

This version on TofuThe authors’ original code

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