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Free online calculators, unit converters, image editors, and developer utilities — 1131+ tools that run entirely in your browser with zero uploads.

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100 tools

Calculators

Finance, health, math, and date tools

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Unit Converters

Units & measurement conversions

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Image Tools

Compress, resize, convert, crop, and rotate images

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15 tools

Developer Tools

JSON, CSV, SQL, HTML & CSS formatters, minifiers, and converters

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