Compression Savings Proof Tool
Compare actual local compression outputs and ratios for user-supplied web assets.
Produce real gzip or zlib-deflate bytes with browser APIs, verify exact decompression, and compare actual sizes.
Using Compression Savings Proof Tool
Compare actual local compression outputs and ratios for user-supplied web assets.
- Start with Try worked example. Or open supported local evidence. Any nonempty local files up to 25 MiB each. Browser Compression Streams support is required.
- Use Details & settings to adjust the declared inputs, thresholds or component content. Review cards retain source evidence and any supported manual decisions.
- Open Preview for the actual analysis or interactive component. Test keyboard behavior and narrow layouts before relying on generated UI.
- Use Export for task artifacts and the complete workflow ZIP. Save review retains settings/decisions and source fingerprints; file-based projects need the original sources to reopen.
Example
The tailored example for Compression Savings Proof Tool demonstrates Produce real gzip or zlib-deflate bytes with browser APIs, verify exact decompression, and compare actual sizes.
Questions & answers
What does Compression Savings Proof Tool support?
Produce real gzip or zlib-deflate bytes with browser APIs, verify exact decompression, and compare actual sizes.
What input should I use?
Any nonempty local files up to 25 MiB each. Browser Compression Streams support is required.
What can I download?
Use the Export tab for task-specific artifacts, typed JSON, CSV and a workflow ZIP. Supported artifacts can include compressed files, reviewed CSS, source-position evidence, screenshot PNGs or qualified review reports.
Does this run a live website audit or deploy changes?
No. Performance diagnostics use imported evidence, explicit simulations or selected local bytes. Builders export code for you to review and integrate. No URLs are crawled, no service worker is installed and nothing is deployed. Public pages retain approved ads and optional consent-based analytics.
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