Fast, private, browser-based utilities. Nothing leaves your device.
Format, beautify, and validate JSON with instant error reporting.
Explore large JSON as an interactive, searchable, virtualized tree.
Encode text to Base64 or decode it back, UTF-8 safe.
Percent-encode or decode URLs and query components.
Inspect a JSON Web Token's header and payload in your browser.
Generate random v4 UUIDs in bulk and copy them instantly.
Compute SHA-1, SHA-256, SHA-384, and SHA-512 hashes of text.
Convert Unix timestamps to human-readable dates and back.
Convert text between camelCase, snake_case, Title Case, and more.
Convert numbers between binary, octal, decimal, and hex.
Test regular expressions with live match highlighting and flags.
Compare two blocks of text and highlight line-by-line changes.
Write cron schedules and read them back in plain English.
Count words, characters, sentences, and estimated reading time.
Generate placeholder paragraphs, sentences, or words.
Turn any text into a clean, URL-friendly slug.
Trim, collapse whitespace, strip HTML, and tidy up messy text.
Convert colors between HEX, RGB, and HSL with a live preview.
Check color contrast against WCAG AA/AAA accessibility levels.
Design linear gradients and copy the CSS in one click.
Generate strong, random passwords with configurable character sets.
Convert length, weight, and temperature between units.