W3C Markup Validation Service

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  GitHub Timestamp Privacy redacts timestamps such as commit dates on GitHub. The precision of timestamps is reduced according to your preference. Click on individual timestamps to reveal more precision if needed.

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  Image Resizer

  Rescale multiple images into different sizes in a single step

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  Color Picker - Native Eyedropper

  Determine the pixel's color on the screen with a magnifying glass eyedropper. It supports color selection history and clipboard copy

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  Web Developer

  Adds a toolbar button with various web developer tools. The official port of the Web Developer extension for Firefox.

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