All tools

Resize images in your browser and export as JPEG, PNG or WebP with quality control.

Click any pixel in an uploaded image and copy the exact HEX and RGB color values.

Generate test tones from 20 Hz to 2000 Hz with selectable waveforms and volume control.

Find song tempo quickly by tapping to the beat with mouse or spacebar.

Count words, characters, sentences, paragraphs and reading time as you type.

Generate placeholder text — words, sentences or paragraphs — for mockups and prototypes.

Convert text instantly between lowercase, UPPERCASE, Title Case, sentence case, camelCase, snake_case and more.

Generate one or many UUIDs (v4) instantly. Copy individual values or download as a list.

Format, validate and minify JSON instantly. Helpful error messages for invalid input.

Encode text to Base64 or decode Base64 back to text. UTF-8 safe.

Convert between Unix timestamps and human-readable dates in any timezone.

Encode unsafe URL characters or decode encoded URLs quickly and safely.

Generate clean, URL-safe slugs from any string. Handles diacritics and special characters.

Parse URL parameters into readable key-value pairs and JSON instantly.

Convert colors between HEX, RGB and HSL. Live preview included.

Generate scannable QR codes for URLs, text, Wi-Fi credentials and more — instantly, in your browser.

Generate strong, cryptographically secure passwords. Configurable length and character sets.

Calculate percent value, percent rate and percentage change in one simple tool.