polyfills-db

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library 3.0.0 ·javascript
verified May 27, 2026

A database of browser polyfill features, version 3.0.0, released as needed. Provides structured metadata about which browsers support each feature and which modules/files implement it. Supports runtime JS polyfills, recast-based JS transpilation, and postcss-based CSS transpilation. Key differentiator: centralized polyfill data for multiple transpilation targets, manually maintained with community contributions. Release cadence: irregular, stable.

total hits 25
actors 8 distinct systems
last hit 1d ago AhrefsBot
Amazonbot
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MetaBot
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GPTBot
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Script
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ClaudeBot
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Search engines
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Humans
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