205+ free tools
Your Ultimate Toolbox
205+ utilities right in your browser. Converters, calculators, generators and developer tools.
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Why Ultimate Tools?
Ultimate Tools is a collection of 205+ free online tools right in your browser. No downloads needed — everything works instantly.
Unit and color converters, calculators (scientific, mortgage, percentage), password generators, QR codes, UUID, JSON formatter, regex tester, Base64, image compression, SEO utilities and more. All data is processed locally — privacy guaranteed.