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Encode plain text to Base64 format, or decode a Base64 string back to its original text. Useful for APIs, email, and data transfer.

Compare two versions of text and see the differences visually. Added lines are highlighted green, removed lines are highlighted red.

Format, validate, and minify JSON. Syntax highlighting, error detection, and one-click copy. Supports 2-space, 4-space, and tab indentation.

Convert colors between HEX, RGB, and HSL formats. Includes a color picker, visual sliders, and quick preset colors.

Test and debug regular expressions in real time. See matches highlighted, capture groups listed, with a quick reference cheat sheet.

Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes from any text. Toggle uppercase output.

Decode and inspect JSON Web Tokens. View header, payload claims, expiry time, and issuer — all without leaving your browser.

Create and sign JSON Web Tokens with custom headers, payloads, and HMAC secrets. Supports HS256, HS384, HS512. Fully private — runs in your browser.

Build cron expressions visually with field editors and quick presets. See the next scheduled run times in plain English.

Generate QR codes from any text, URL, or data. Customize size, colors, and error correction. Download as PNG or SVG.

Decode QR codes by uploading an image or scanning with your camera in real time. Works entirely in your browser.

Write and preview Markdown side-by-side in real time. Includes toolbar shortcuts, sync scroll, and copy as HTML.

Generate UUID v4 identifiers instantly. Bulk generate up to 100 UUIDs. Choose format: standard, no-hyphens, braces, or URN.

Generate strong random passwords with custom length, character sets, and strength indicator. Bulk generate up to 50 passwords.

Generate lorem ipsum placeholder text by paragraphs, sentences, or words. Customize count and optionally wrap in HTML tags.

Convert JSON data to YAML format instantly. Real-time conversion with syntax validation and one-click copy.

Generate HTTP Basic Authentication headers from username and password. Get Base64 tokens, cURL commands, and fetch examples.

View detailed browser, device, screen, and network information. Check user agent, viewport, color depth, timezone, and more.

Convert Unix timestamps to human-readable dates and vice versa. Supports seconds, milliseconds, ISO 8601, UTC, local time, and relative display.

Convert numbers between decimal, binary, octal, and hexadecimal instantly. Supports large integers and fixed-width binary representations.

Generate HMAC-SHA1, HMAC-SHA256, HMAC-SHA384, and HMAC-SHA512 message authentication codes. Hex and Base64 output. Runs in your browser.

Encrypt and decrypt text using AES-GCM with PBKDF2 key derivation. Authenticated encryption runs entirely in your browser — nothing leaves your device.

Generate Time-based One-Time Passwords (RFC 6238) compatible with Google Authenticator, Authy, and other 2FA apps. Live countdown included.

Build CSS box-shadow values visually. Add multiple layers, adjust offset, blur, spread, color, and opacity. Copy the CSS with one click.

Create linear, radial, and conic CSS gradients visually. Add color stops, adjust angles, choose from presets, and copy ready-to-use CSS.

Stay focused with a Pomodoro timer. Customizable work and break durations, session tracking, sound alerts, and auto-start support.

Convert CSV to JSON and JSON to CSV instantly. Supports commas, semicolons, tabs, custom delimiters, header rows, and type inference.

Generate shades, tints, and harmonious color schemes from any base color. Get hex, RGB, HSL values and CSS custom properties.

Format, validate, and minify XML online. Pretty-print with custom indentation and detect syntax errors instantly.

Format, beautify, and minify CSS online. Syntax highlighting for selectors, properties, values, and at-rules. One-click copy.

Complete reference for all HTTP status codes — 1xx to 5xx — with descriptions, use cases, and examples. Searchable and filterable.

Generate complete HTML meta tags for SEO, Open Graph, and Twitter Card. Includes search result and social card preview.

Hash passwords with BCrypt and verify plaintext against existing hashes. Configurable salt rounds. Runs entirely in your browser.

Generate favicons from emoji or text initials. Preview at 16×16, 32×32, 64×64, 128×128 and download as PNG.

Generate production-ready Nginx server block configs for WordPress, Laravel, and reverse proxy setups. Includes SSL, gzip, security headers, and PHP-FPM options.

Break any URL into protocol, host, port, path, query parameters, and fragment. Edit each part individually and copy the rebuilt URL.

Generate RSA 2048-bit or 4096-bit public/private key pairs in PEM format using the browser WebCrypto API. Supports encryption and signing modes.

Select languages, frameworks, and IDEs to generate a combined .gitignore file. Covers Node.js, Python, Laravel, Django, Go, Rust, VS Code, JetBrains, macOS, and more.