Free Online Tools
- Image CompressImage
- PDF MergePDF
- PDF to JPG ConverterPDF
- HEIC to JPG ConverterImage
- Image ResizeImage
- Word CounterText
- PNG to JPG ConverterImage
- Percentage CalculatorCalculator
- PDF SplitPDF
- JSON FormatterDeveloper
- Age CalculatorCalculator
- Base64 Encode DecodeEncoding
- Kilometers to Miles ConverterUnit Converter
- Kilograms to Pounds ConverterUnit Converter
- Celsius to Fahrenheit ConverterUnit Converter
- Centimeters to Inches ConverterUnit Converter
- MB to GB ConverterUnit Converter
- Currency ConverterUnit Converter
- Ring Size ConverterUnit Converter
- Days Between Dates CalculatorCalculator
- Tip CalculatorCalculator
- BMI CalculatorCalculator
- Discount CalculatorCalculator
- Mortgage CalculatorCalculator
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Unit Converter
Convert length, weight, temperature, data size, and more using standard factors. Essential for travel, engineering, cooking, and international specs.
Calculator
Financial, health, and everyday math calculators with explained formulas and metrics so you can interpret results with confidence.
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Text
Count, convert, diff, sort, and transform plain text—including CJK scripts, case styles, and reading-time estimates.
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Merge, split, rotate, and compress PDF documents locally. Page structure and compression concepts explained on each tool page.
Image
Resize, compress, crop, convert formats, and strip metadata from images without uploading files to a server.
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Generator
Generate UUIDs, passwords, QR codes, placeholder text, and random data for testing, prototyping, and production IDs.
Utility
Focused single-purpose utilities for quick tasks that do not fit other categories—fast, free, and private.
Security
Hash, encrypt, and check password strength using client-side cryptography. Algorithm details and standards linked for reference.
Color
Pick colors, convert hex/RGB, check WCAG contrast, and build gradients for accessible, production-ready design.
Developer
Format, validate, decode, and inspect JSON, SQL, JWT, regex, and other developer data—all running locally in your browser.
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Encoding
Encode and decode Base64, URL, hex, HTML entities, and binary formats. Understand character sets to prevent data corruption across systems.
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SEO
Build UTM links, preview Open Graph cards, validate meta descriptions, and generate robots.txt for search and social visibility.
Network
Inspect IPs, time zones, world clocks, and user-agent strings—common fields in logs, analytics, and debugging.
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Unit conversion matrix
Convert length, weight, temperature, data size, and more using standard factors. Essential for travel, engineering, cooking, and international specs.
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