Vesper

The internet is broken for a lot of people. You have the power to fix your corner of it. Accessibility isn't a feature - it's the difference between someone being able to use your work or not.

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Chrome Extension

Hover over any element to instantly surface its accessibility attributes - ARIA labels, roles, alt text, tab order, and font data - without opening DevTools.

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macOS Desktop App

Point it at any website and walk away. It crawls every page, runs WCAG 2.2 A/AA checks, and delivers a fully structured report. Free forever, upgrade to Pro for full-site crawls.

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iOS + Web

Check any foreground and background color pair against WCAG 2.2 AA and AAA contrast thresholds instantly. Free, no account required.

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Web

Plain-language explanations of WCAG, ARIA, and accessible design - written for web teams, not lawyers. Free, no account required.

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