Free Online Developer, Text, Finance & Calculator Tools

Format, validate, and beautify JSON data instantly

Encode and decode Base64 strings, files, and images

Decode and inspect JSON Web Tokens instantly

Encode and decode URLs with percent-encoding

Test regular expressions with real-time matching

Generate MD5, SHA-1, SHA-256, and other hashes

Generate strong random passwords and passphrases

Compare two texts and find differences

Pick colors and convert between HEX, RGB, HSL formats

Convert Unix timestamps to dates and dates to timestamps

Generate QR codes from text or URLs with custom colors

Count words, characters, sentences, and reading time

Convert text to UPPER, lower, Title, camelCase, and more

Generate placeholder text for your designs

Write Markdown and preview rendered HTML in real-time

Convert text to ASCII art with multiple FIGlet-style fonts

Browse, search, and copy emojis with one click

Calculate monthly payments, total interest, and amortization schedule

Calculate compound interest growth with regular contributions

Convert between 30+ world currencies with live exchange rates

Calculate percentages, discounts, and percentage changes instantly

Calculate days between dates or add/subtract days from a date

Convert length, weight, temperature, volume, and more

Calculate tips and split bills among friends easily

Calculate your exact age in years, months, days, and more

Calculate your Body Mass Index and check your weight status

Convert between bytes, KB, MB, GB, TB and other data units

Spin a wheel, flip a coin, or roll dice to make random decisions