Free Online Tools

Fast, free, and private. No signup required. All tools run entirely in your browser.

Markdown to HTML Converter

Convert Markdown to HTML instantly with live preview. Free online tool for developers, bloggers, and writers.

Generate secure, random passwords with customizable length and character options. Free online password generator with strength meter.

Calculate your Body Mass Index (BMI) instantly. Free online BMI calculator with health categories and weight status.

Calculate percentages instantly. Free online percentage calculator for discounts, tips, taxes, scores, and more.

Calculate your exact age from birthdate instantly. Free online age calculator with years, months, days and detailed statistics.

Convert colors between HEX, RGB, and HSL formats instantly. Free online color converter for designers and developers.

Convert units instantly - length, weight, temperature, volume, area, speed, and more. Free online unit converter for everyday use.

Generate custom QR codes instantly for URLs, text, WiFi, emails, and more. Free online QR code creator with download option.

Generate cryptographic hashes (MD5, SHA-1, SHA-256, SHA-512) instantly. Free online hash generator for developers and security professionals.

Format, validate, and minify JSON instantly. Free online JSON tool for developers with syntax highlighting and error detection.

Generate UUIDs (v1, v3, v4, v5) and validate UUID formats. Free online UUID generator for developers with batch generation.

Convert time between time zones instantly. Free online world clock and time zone converter for global meetings and travel planning.

Count words, characters, paragraphs, and sentences in real-time. Perfect for writers, students, and content creators.

Encode or decode Base64 data instantly. Free online Base64 converter for developers with URL-safe and line-wrap options.