Developer Tools
Extract CSS Keyframes
Extract CSS @keyframes animation names from pasted stylesheets without rendering, executing, fetching, or uploading code.
0 / 30,000 characters. No upload, storage, or account required.
CSS keyframe extraction workflows
Use this extractor when pasted animation CSS needs a browser-local inventory of keyframe names before refactoring, migration, or design-system documentation.
Audit animation usage
Pair this with Extract CSS Classes, Extract CSS Variables, and Extract Inline Styles.
Document stylesheet structure
Use Extract CSS Media Queries, Extract CSS Imports, and CSS Formatter alongside animation inventories.
Prepare cleanup notes
Send copied names to Remove Duplicate Lines, Sort Lines, or Find and Replace Text.
What this tool does
Extract CSS Keyframes finds @keyframes and vendor-prefixed keyframes names in pasted CSS, removes duplicates, shows source lines, and runs locally in your browser.
Common use cases
Extract @keyframes animation names from pasted stylesheets, component CSS, design-system files, or copied source before animation audits, refactors, migration, or documentation cleanup.
Use Extract CSS Keyframes when you are working with copied API payloads, logs, encoded values, config snippets, identifiers, or debugging data and need a quick browser-local check before pasting the result into docs, tickets, tests, or another developer tool.
How to use it
- Paste CSS, animation stylesheets, component styles, or copied source that may define keyframe animations.
- Choose whether duplicate animation names should be removed and whether keyframe names should be normalized.
- Review animation names with source lines, then copy the clean list for design-system audits, cleanup tickets, or migration notes.
Example workflow
Copy a small payload or encoded value from an API response, request URL, log line, or config file. Run the focused check here, confirm the output is readable, then continue with related developer data tools such as validation, formatting, decoding, timestamp conversion, or CSV/JSON conversion.
Privacy note
CSS keyframe extraction runs locally in your browser. Your pasted CSS is not uploaded, rendered, fetched, crawled, executed, stored, or logged.
FAQ
Does Extract CSS Keyframes run animations?
No. It reads pasted CSS text only and extracts keyframe names. It does not render, animate, fetch, execute, upload, store, or log snippets.
Are vendor-prefixed keyframes included?
Yes. The extractor recognizes @keyframes and vendor-prefixed forms such as @-webkit-keyframes.
When is this useful?
Use it while auditing animation names, documenting design-system motion, cleaning unused CSS, or migrating stylesheets.
Explore more tools
Browse the Developer Tools hub or continue with the Developer Data Toolkit when this task is part of a larger workflow.