A ready-to-use diff component
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I just stumbled over this package: @pierre/diffs.
@pierre/diffsis an open source diff and code rendering library. It's built on Shiki for syntax highlighting and theming, is super customizable, and comes packed with features.
The package just hit v1 and seems to be pretty new. The docs live on diffs (no idea how one could snatch this domain in 2026) and it looks amazing.
It comes as a React and Vanilla JS component, supports server-side rendering, and the configuration options look solid.
Disclaimer: I haven't tried diffs but I can imagine that I will take it as a starter for this blog eventually.
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Frontend nerd with over ten years of experience, freelance dev, "Today I Learned" blogger, conference speaker, and Open Source maintainer.