CSS Units
Convert px rem em vw vh between CSS unit types live
Text Case Converter
Quickly convert selected text to UPPERCASE or lowercase with a right-click.
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Kanbranch by DevKan
Minimalistic extension that adds a button in Jira tickets so that the ticket ID can easily be copied in the clipboard (and then used to create a branch in git for example).
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On Pace
On Pace helps you focus by easily blocking distracting websites, letting you enhance your productivity and stay in control of your online habits.
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Return Button
Adds a 'Return' button to any website, allowing users to go back one page in their browsing history.
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Sell The Flip — List Everywhere
Auto-post and fill marketplace listing forms from your Sell The Flip listings
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VarScope
A browser extension built for penetration testers and security researchers. Inspect, snapshot, diff, and export all JavaScript variables on any web page — including variables assigned live via the F12 browser console.
Declutter
Remove distracting elements and apply reading CSS styles
HTML from MD
Transform Markdown into styled HTML and export to clipboard
Num Facts
Enter a number to see its mathematical properties and facts
OneImage Resize
Resize images with pixel-perfect controls or quick percentages right in your browser. Private, offline, instant.
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File Diff Tools
View and search 118 essential file difference utilities: diff, diff3, sdiff, wdiff, patch, diffstat, and related tools. • Safe offline sidebar reference for Firefox desktop. No tracking. No data collection. No permissions required.
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Grad Text
Generate CSS gradient text with live preview and copy
Broken Link Finder
Scan webpages to find broken, redirected, and valid links.
Vision Mode
Simulate deuteranopia protanopia tritanopia on any page
Select To Format JSON
Select JSON text, right-click, and view formatted JSON in a popup window.
Twitch Dev Dark Theme
Changes the background color of dev.twitch.dev to rgb(36, 36, 36) and color white.
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DAT Ex Pro
Export and merge browser cookies efficiently, allowing users to manage, backup, and combine cookies across websites with ease.
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Alt Magic: Alt text generator
Create accessible, SEO‑friendly alt text in your browser with a click. Just link your Alt Magic account to get started.
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Fistbump
Connects web apps to the Fistbump desktop app via window.fistbump.
