MJJ Tools - 160+ free tools that run in your browser
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MJJ Tools brings together 160+ free calculators, converters, generators, and utilities for developers and everyday tasks. No registration or download is required, and most tools run directly in your browser with a privacy-first approach.
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Hi Product Hunt! I built MJJ Tools because I kept bouncing between small single-purpose sites for everyday calculations, conversions, and developer tasks. It now brings 160+ free tools into one fast, searchable place, with no account required and most processing happening directly in the browser. I’d especially value feedback on which tools you use most, what’s missing, and whether the categories and search make the collection easy to navigate.