CyberChefFree Online Tools
100+ converters, calculators, encoders, formatters, and generators — all running securely in your browser.
Featured Tools
Most popular tools loved by developers
JSON XML Converter
DevelopmentConvert JSON to XML format easily. Transform data between these popular formats with this free online tool.
JSON TOML Converter
DevelopmentConvert JSON to TOML format easily. Transform data between these popular formats with this free online tool.
JSON Formatter
DevelopmentFormat and beautify JSON with customizable indentation. Supports JSON5, comments, trailing commas and advanced formatting options.
String to Slug
ConverterConvert a string to a slug.
Shrug Emoji Generator
TextGenerate shrug emoji ¯_(ツ)_/¯ in different fonts and styles.
Brat Generator
TextCreate authentic Charli XCX BRAT album style meme images with custom text and colors. Generate lime green aesthetic images inspired by the iconic Brat album cover. Perfect for social media, fan art, and expressing your brat summer energy!
Discord Time Converter
ConverterConvert time to Discord time format.
One Rep Max Calculator
CalculatorCalculate your one rep max based on your weight and reps. Perfect for calculating your one rep max based on your weight and reps.
New Tools
Recently added to our collection
Hex to Decimal Converter
ConverterConvert hexadecimal to decimal with exact large-number and fraction results, binary output, calculation steps, and signed two's-complement values.
Mulch Calculator
CalculatorFree mulch calculator — estimate how much mulch you need by area and depth. Instant results in cubic yards, cubic feet, 2-cu-ft bags, and weight. Supports rectangle, circle, and total-area input with mulch types and optional cost.
Gravel Calculator
CalculatorFree gravel calculator — estimate how much gravel you need by area and depth. Instant results in cubic yards, cubic feet, tons, lbs, kg, and bags. Supports rectangle, circle, and total-area input with material density presets and optional cost.
Fuel Cost Calculator
CalculatorEstimate your trip's fuel cost based on distance, fuel efficiency, and gas price. Supports miles, km, MPG, L/100km, km/L, per gallon, and per liter. Includes round-trip mode and vehicle presets.
Pea Gravel Calculator
CalculatorFree pea gravel calculator — estimate how much pea gravel you need by area and depth. Get instant results in cubic yards, cubic feet, tons, lbs, kg, and 50-lb bags. Supports rectangle, circle, and custom area input with optional cost estimate.
Tip Calculator
CalculatorCalculate tip amount, total bill, and split between people. Supports custom tip percentages, tax rate, and shows a comparison table for common tip rates.
Dice Roller
RandomFree online virtual dice roller. Roll d4, d6, d8, d10, d12, d20 or custom-sided dice. Perfect for tabletop RPGs, Dungeons & Dragons, and board games.
Credit Card Calculator
CalculatorCalculate credit card payoff time, monthly payments, and total interest. Plan your debt-free journey with our free calculator.
Why Choose CyberChef?
Built for developers who value speed, security, and simplicity
Secure & Private
All processing happens in your browser. Your data never leaves your device, ensuring complete privacy and security.
Lightning Fast
Built with performance in mind, CyberChef processes your data instantly with no server delays or loading times.
100+ Free Tools
CyberChef offers 100+ professional tools including converters, calculators, crypto tools, network utilities, JSON formatters, image processors, and text generators. All completely free.
Cross-Platform
Works on any device with a modern web browser. No installation required, access your tools anywhere.
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