All Tools

Format, validate and beautify JSON online. Pretty print with customizable indentation, minify, and catch syntax errors instantly.

Count words, characters, sentences and paragraphs in your text. Get reading time estimates and keyword density analysis.

Generate random UUID v4 identifiers. Create single or bulk UUIDs with format options: dashes, uppercase, lowercase.

Encode text to Base64 or decode Base64 back to text. Supports file-to-Base64 conversion with drag and drop.

Generate URL-friendly slugs from any text. Supports Unicode transliteration (Polish, German, French and more), custom separators and max length.

Generate placeholder lorem ipsum text in paragraphs, sentences, or words. Customize the amount and copy with one click.

Compare two texts side by side and see the differences highlighted. Find added, removed, and unchanged lines instantly.

Convert colors between HEX, RGB, and HSL formats. See a live preview swatch and use the native color picker for visual selection.

Encode or decode URL components online. Convert special characters to percent-encoded format or decode them back to readable text.

Convert Unix timestamps to human-readable dates and vice versa. See local time, UTC, and ISO 8601 format with a live clock.

Test regular expressions in real-time with highlighted matches, capture groups, and common pattern presets. Supports g, i, m, s flags.

Write Markdown and see the rendered preview in real-time. Split-pane editor with copy HTML output. Supports headings, bold, italic, links, lists, and more.

Generate SHA-1, SHA-256, and SHA-512 hashes from any text using the Web Crypto API. Real-time hashing with copy buttons.

Convert JSON arrays to CSV format. Choose delimiter (comma, semicolon, tab), toggle headers, and download as .csv file.

Generate strong, random passwords with customizable length, character sets, and entropy-based strength indicator. Uses cryptographic randomness.

Generate QR codes from any text or URL. Choose size, preview instantly, and download as PNG. Free online QR code maker.

Resize images online with custom dimensions, presets, and format conversion. Supports JPEG, PNG, WebP. All processing happens in your browser.

Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and more. Real-time conversion with character count.

Convert text to binary, hexadecimal, or octal — and back. Real-time conversion with space-separated output for easy reading.

Generate colorful placeholder images with custom dimensions, text overlay, grayscale, and blur. Download as PNG. No external services needed.

Calculate percentages with three modes: find X% of Y, find what percent X is of Y, and calculate percentage change between two values.

Browse and copy Unicode characters: arrows, math symbols, currency signs, emoji, box drawing, Greek letters, and punctuation. Search by name or codepoint.

Convert JSON to YAML and YAML to JSON online. No external libraries — runs entirely in your browser with instant results.

Detect your screen resolution, viewport size, device pixel ratio, color depth, orientation, and touch support. Live updates on resize.

Scientific calculator, unit converter, programmer calculator and date calculator — all in one powerful tool. Evaluate expressions, convert units, work with binary/hex, and calculate dates.