2,100+ free in-browser utilities, no signup
About Online Mini Tools
Online Mini Tools is a free library of focused web utilities for developers, designers, and everyday work. Format JSON, encode data, convert files, run calculators, and use SEO helpers in the browser without an account. Most tools run client-side for privacy. Chrome and Firefox extensions help you open any tool from the toolbar. New tools ship from community requests.
✓ VerifiedOct 19, 2026
Made by
Prajwal Hallale
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