DevKnife: Color Picker, Ruler, Font, CSS Tools & More - AUFOUNDATION icon

DevKnife: Color Picker, Ruler, Font, CSS Tools & More - AUFOUNDATION

by AUFOUNDATION · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

All-in-one dev toolkit: Color Picker, Font Finder, Page Ruler, CSS Outliner, Image Downloader & Source Grabber.

Users
84
+8 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#90K
#75K among extensions
Version
1.5
updated 25 Sep 2026

Users

monthly, 8 months
04284Feb 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 84 usersMove the mouse over the chart for any month

Ratings count

monthly, 8 months
001Feb 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About DevKnife: Color Picker, Ruler, Font, CSS Tools & More - AUFOUNDATION

Stop Tab-Switching. Start Building. DevKnife is the essential "Swiss Army Knife" for modern web developers and designers. Why clutter your browser with five different extensions when you can have one sharp, high-performance tool? Whether you are debugging CSS, picking the perfect brand color, or analyzing typography, DevKnife provides the precision you need in a single click. 🚀 Key Features for Power Users** - Advanced Color Picker (Eyedropper): Get the HEX or RGB code of any pixel on any website with pixel-perfect accuracy. - Smart Font Finder: Instantly identify font families, sizes, weights, and line heights used on any page. - Interactive Page Ruler: Measure margins, padding, and element dimensions with a simple drag-and-drop tool. - CSS Outliner (Element Inspector): Visualize the DOM structure. Toggle outlines to see how containers are nested and aligned. - Pro Image Downloader: Extract and download all images from a webpage in high resolution with one click. - Source Code Grabber: Copy the clean, formatted HTML/CSS of any live site for analysis or inspiration. ⚡ Designed for Speed - Global Shortcuts: Use `Shift+1` to `Shift+6` to trigger tools instantly without opening the popup. - Lightweight & Fast: Zero bloat. DevKnife is optimized for performance and won't slow down your browser. - Privacy-Focused: We don't track your data. Your workspace is yours alone. 🛠 How to Use: 1. Click the DevKnife icon in your toolbar. 2. Select the tool you need (Color, Font, Ruler, etc.). 3. Use ESC to deactivate any active mode. 4. (Optional) Turn on **Global Shortcuts** in the settings for maximum speed.

Growth

WindowUsersChangeRatingsRating
7 days+1+1.2%00.00
30 days+8+10.5%00.00
6 months+53+171.0%00.00

Version history

3 versions recorded
1.525 Sep 2026
1.415 Mar 2026
1.317 Feb 2026

Details

Category
Developer Tools
First seen
17 Feb 2026
Size
54 KB
Languages
de, en, id, nl, vi, tr, es, fr
Pricing
Free
Privacy policy
docs.google.com
Support
x.com/AUFOUNDATIONS
Extension ID
mdhkiiddcnmdeefmlknmaklacmlmphhn

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
activeTabstorage
Site access
<all_urls>
Can read and change data on every website you visit.

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