A VS Code extension to check incompatible CSS
I've developed a handy tool for Visual Studio Code that makes checking CSS compatibility very easy for developers. It provides instant feedback on syntax, keywords, types, and function compatibility. It even highlights deprecated, non-standard, and experimental features.
A VS Code extension to check incompatible CSS launched on May 19, 2024 with 21 votes, #841 of 4,539 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 2 years on.
In plain words
This Visual Studio Code extension checks CSS compatibility by providing instant feedback on syntax, keywords, types, and function compatibility. It highlights deprecated, non-standard, and experimental CSS features to help developers identify potential issues. The tool is designed for developers working with CSS who need to ensure their code meets compatibility standards.
written from the facts on this page · September 2026
From the sources
A VS Code extension to check, on hover, which CSS sytax, keywords, types or functions are compatible or supported with all browsers and their versions. - vivek9patel/vscode-css-compatibility
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