Description:
Horizontal and vertical rulers
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Type: Cask
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Latest Version: 2.0.19@0
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Tracked Since: Dec 17, 2025
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Links:
Homepage |
formulae.brew.sh
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Category: Developer tools
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Tags:
measurement
design-tools
productivity
developer-tools
screen-ruler
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Install:
brew install --cask free-ruler
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About:
Free Ruler is a precise measurement utility designed for macOS that provides both horizontal and vertical on-screen rulers. It allows users to measure objects, windows, and screen elements in pixels, inches, centimeters, or points with high accuracy. The tool is invaluable for designers and developers who need to verify dimensions and spacing directly on their screen.
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Key Features:
- Dual-axis measurement (horizontal and vertical rulers simultaneously)
- Multiple unit support (pixels, inches, centimeters, points)
- Always-on-top functionality for continuous measurement
- Pixel-perfect precision for UI and design work
- Lightweight and native macOS application
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Use Cases:
- UI/UX designers measuring element spacing and dimensions
- Web developers verifying pixel-perfect layouts and alignments
- Graphic designers checking print layouts on screen
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Alternatives:
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PixelSnap
– More expensive with auto-measurement features
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xScope
– Comprehensive design tools suite, steeper learning curve
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Built-in macOS Screenshot tool
– Free but lacks continuous measurement capabilities
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| Detected |
Version |
Rev |
Change |
Commit |
| Jun 17, 2026 5:29am |
2.0.19 |
0 |
VERSION_BUMP |
04cd27db |
| Jun 14, 2026 10:53am |
2.0.18 |
0 |
VERSION_BUMP |
1d6ec1af |
| Jun 12, 2026 10:26pm |
2.0.17 |
0 |
VERSION_BUMP |
3ca0f8b4 |
| Jun 12, 2026 5:26am |
2.0.16 |
0 |
VERSION_BUMP |
b891c6e8 |
| Jun 8, 2026 10:31pm |
2.0.15 |
0 |
VERSION_BUMP |
1dec6608 |
| Jun 8, 2026 2:21pm |
2.0.14 |
0 |
VERSION_BUMP |
487361f5 |
| Jun 7, 2026 10:10pm |
2.0.13 |
0 |
VERSION_BUMP |
6e0be9e1 |
| Jun 7, 2026 4:14pm |
2.0.12 |
0 |
VERSION_BUMP |
2bcafb3a |
| Jun 7, 2026 2:06pm |
2.0.10 |
0 |
VERSION_BUMP |
4fa3046a |
| Jun 6, 2026 10:10pm |
2.0.9 |
0 |
VERSION_BUMP |
cf909524 |
| Sep 15, 2025 11:39am |
2.0.8 |
0 |
VERSION_BUMP |
22fd1949 |
| Apr 1, 2024 10:57am |
2.0.7 |
0 |
VERSION_BUMP |
07de95bb |
| Jan 15, 2024 5:20pm |
2.0.6 |
0 |
VERSION_BUMP |
fcaa2656 |
| Mar 26, 2023 6:28am |
2.0.6 |
0 |
VERSION_BUMP |
810baaf2 |
| Dec 26, 2022 9:05pm |
2.0.5 |
0 |
VERSION_BUMP |
99223a97 |
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