270+ Free Online Tools
All tools run entirely in your browser. No data is uploaded. Fast, private, and free.
All Categories
AI Tools
AI-powered tools running entirely in your browser. Image upscaling, speech recognition, translation, and more — all private, no data uploaded.
Math & Calculator
Scientific calculators, loan interest, ROI, and more mathematical tools.
Unit Converter
Convert length, weight, temperature, data size, speed, and more units.
Health & Fitness
Calculate BMI, BMR, TDEE, calories, ideal weight, and more.
Date & Time
Timestamp converter, date difference, timezone converter, and more.
Text & Language
Case converter, word counter, language tools for Vietnamese, Japanese, Chinese.
Developer Tools
JSON formatter, Base64, UUID, hash generator, regex tester, and more.
Color & Design
Color picker, HEX/RGB/HSL converter, gradient generator, contrast checker.
Image Tools
Resize, crop, compress, convert images — all processed in your browser.
Data & Charts
CSV to chart, statistics calculator, data visualization tools.
Security
Password generator, hash checker, password strength analyzer.
QR Code
Generate and read QR codes, barcode generator.
Document Tools
PDF merge, split, text extraction, image to PDF conversion, and metadata editing.
Miscellaneous
Roman numerals, number to words, coin flip, dice roller, and more.
SEO & Marketing
Tools to generate JSON-LD schema, build UTM links, validate sitemaps, and analyse on-page SEO.
Accessibility
Tools to audit and improve web accessibility (WCAG, ARIA, semantic HTML).
Legal & Compliance
Templates and pickers for OSS licenses, policies, and compliance snippets.
Audio Tools
In-browser audio converter, trimmer, normalizer, BPM detector, and text-to-speech.