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

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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.
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