Tools tagged #performance
Every ecech. tool tagged performance: 4 free calculators and utilities across Developer & Code, Image & Photo Tools. No signup, runs in your browser.
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JSON Minifier
Minifying cuts a third of the raw bytes and almost none after gzip, because whitespace compresses away. This measures both, so you know if it is worth doing.
Developer💻JSON Size Analyzer
Total size says there is a problem. Per-key size says which one, and the answer is rarely distributed evenly.
Developer🖼️PNG to WebP
Drop in PNGs and watch the file size fall as you move the slider — usually by 60 to 80% with no visible difference. Transparency is kept, and nothing is uploaded.
Image💻SVG to CSS Background
Base64 makes an SVG 33% bigger and kills gzip. Percent-encoding only what CSS actually chokes on is smaller, still valid, and still readable.
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