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A source and web editor with built-in HTML preview, file tools and language-server support.

A Notion web clipper for capturing articles, highlights, and other web content.

Turn three RGB channel values into a hexadecimal colour code.

Adjust CSS colour pairs and inspect their changing contrast ratio.

Convert colours between spaces and control their CSS output.

Edit photos with filters and advanced tools

Render HTML and CSS into PDF from a command line or Python

Publish XML and HTML documents using XSL-FO or CSS

Recreate target images with CSS in scored challenges

ZURB’s application symbols with CSS styling and semantic-name guidance.

Browsers, CSS and the work of building web interfaces

Automatically generates gaming highlights from Twitch and YouTube streams and local videos.

Cultural-heritage image discovery with copyright-status filters

Experiment with image filters and editable adjustments

Photo app that turns pictures into art with 1000+ filters.

Build browser interfaces with declarative components compiled from HTML, CSS, and JavaScript.

Build interactive Python applications for the terminal with widgets, CSS, and keyboard bindings.

Turn a text description or photograph into a colour palette.

A programmable font-subsetting and conversion pipeline for Node.

Searchable interface symbols delivered through CSS, SVG and React.

Build colour tools with JavaScript objects, conversions and gamut controls.

Outline and solid interface icons ready to copy as SVG or JSX.

A cross-platform IDE with language-aware editing, refactoring, project wizards, and application tooling.

Tailwind interface components with documented interactive behavior