Free online tools, no sign-up, no nonsense.
A small, fast collection of developer and everyday utilities that run entirely in your browser. Nothing you type is ever uploaded to a server.
Data & Encoding
🧩JSON FormatterValidate, beautify and minify JSON
🔤Base64 Encode/DecodeUTF-8 safe base64 conversion
🔗URL Encode/DecodePercent-encode or decode strings
📊CSV ⇄ JSONConvert between CSV and JSON
🪪JWT DecoderDecode JSON Web Token header & payload
🔣HTML Entity ConverterEncode text to entities or safely decode back
🧾XML FormatterFormat, validate and minify XML
Security & Generators
🔐Password GeneratorCryptographically secure passwords
🧮Hash GeneratorSHA-1 / SHA-256 / SHA-384 / SHA-512
🆔UUID GeneratorBulk-generate UUID v4 identifiers
🎲Random Number GeneratorUnbiased, cryptographically secure random integers
Text
📝Word CounterWords, characters, reading time
🔡Case ConvertercamelCase, snake_case, Title Case…
🔍Text Diff CheckerCompare two blocks of text
🎯Regex TesterTest patterns against sample text
📄Lorem Ipsum GeneratorPlaceholder text generator
🐌Slug GeneratorTurn any text into a clean URL slug
📃Markdown PreviewerLive-preview a basic Markdown subset
Time & Design
Network
Privacy: None of the tools on this site upload, log, or transmit the data you enter — everything runs client-side in your browser. See the privacy policy for details.