Developer Tools

by Jessy Houle

17 Add-ons in this Collection

Regular Expressions Tester by Sebo

Rated 4 out of 5 stars 23 reviews

7,137 users

Testing tool for regular expressions with color highlighting (including submatches) and helpers for creating expressions

fontinfo by Jonathan Kew

Download Now

Experimental

Rated 4 out of 5 stars 10 reviews

5,415 users

Provides tools to find out details of the fonts used in a web page.
  1. 1
  2. 2
Results 1617 of 17

What are Collections?

Collections are groups of related add-ons that anyone can create and share.

Explore Collections

More by this User

See all collections by this user

Recently Viewed