ACT

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ACT is a free native macOS application for checking colour contrast against WCAG accessibility requirements.

Cost / License

Free
Proprietary

Origin

United Kingdom

Platforms

Mac

Colour picker

Colour code conversion

ACT alternatives

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Features

Properties

Lightweight
Privacy focused
Local-First
AI-Powered

Features

Portable
No registration required
Ad-free
No Coding Required
No Tracking
Live Preview
Works Offline
Color Picker

Tags

ACT News & Activities

Highlights All activities

Recent activities

ColinS added ACT
about 10 hours ago
Maoholguin updated ACT
about 10 hours ago
ColinS added ACT as alternative to Colour Contrast Analyser, Kontrast, Who Can Use and Wave (accessibility tool) + 4 similar activities
2 days ago

ACT information

Developed by
Colin Shanley
Licensing
Proprietary and Free product.
Alternatives
4 alternatives listed
Badge
Get an embeddable badge for ACT
Supported Languages
- English

AlternativeTo Categories

Photos & Graphics, OS & Utilities, Development

Popular alternatives

ACT was added to AlternativeTo by ColinS on Sep 21, 2026 and this page was last updated Sep 21, 2026.

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What is ACT?

ACT is a free native macOS application for checking colour contrast against WCAG accessibility requirements.

It supports permissive colour-format entry, opacity-aware testing, colour conversion and accessible colour alternatives.

ACT runs locally on the Mac and requires no account, subscription or browser.