Tools

Convert Unicode domain names to Punycode (ACE) and back. Supports IDNA2008 with Unicode TR#46 processing, handles full domains including TLD labels, and converts both single labels and complete hostnames. Free online tool — no account or installation required.

Strip scripts, inline styles, CSS classes, comments, and unnecessary markup from messy HTML in one click. Accepts pasted HTML, uploaded files, or a URL to fetch. Produces clean, minimal markup that's safe to embed or further process. Free online tool — no account required.

Fix broken or malformed HTML by completing missing tags, reordering overlapping tags, and correcting nesting errors. Also formats and re-indents the corrected output. Accepts pasted HTML or uploaded files. Free online tool — no account required.

Edit HTML with a live preview that updates as you type. Switch between a rich-text WYSIWYG editor and raw HTML source at any time. Useful for quick prototyping, checking markup output, or learning HTML. Free online tool — no account required.

Convert identifiers between naming conventions: camelCase, PascalCase, snake_case, kebab-case, SCREAMING_SNAKE_CASE, Title Case, and more. Handles batch conversion of multiple tokens at once. Useful when migrating codebases or integrating APIs with different naming styles. Free online tool.

Encode plain text or HTML to HTML entities and decode entities back to characters. Supports named entities, decimal numeric references, and hexadecimal numeric references. Handles bulk input and special characters including angle brackets, quotes, and Unicode. Free online tool.

Encode and decode URLs with percent-encoding per RFC 3986. Handles Unicode characters, reserved characters, and special symbols. Automatically converts Punycode domain names. Useful for debugging query strings, API URLs, and redirect targets. Free online tool.

Generate RFC 4122 version 4 (random) UUIDs instantly. Options for uppercase output, stripping hyphens, wrapping in braces, and generating multiple UUIDs in a batch. Copy results with one click. Free online tool — no account required.

Encode text or binary files to Base64 (RFC 4648) and decode Base64 back to its original form. Accepts pasted text or file uploads up to several megabytes. Supports the standard alphabet and the URL-safe base64url variant. Free online tool — no account required.

Encode text or binary files to hexadecimal (Base16) and decode hex strings back to their original form. Accepts pasted text or file uploads. Outputs uppercase or lowercase hex with optional separators. Free online tool — no account required.

Escape and unescape strings for use in C and C++ source code. Handles standard escape sequences, hex escapes (\xHH), octal escapes, and Unicode escapes (\uHHHH). Useful when embedding binary data, file paths, or regex patterns in C string literals. Free online tool.

Escape and unescape C# strings in classic and verbatim (@) string formats. Handles Unicode escapes (\uHHHH), supplementary character escapes (\UHHHHHHHH), and all standard C# escape sequences. Free online tool.

Escape and unescape JSON strings per RFC 8259. Handles backslashes, double quotes, control characters, and Unicode escapes (\uHHHH). Useful when constructing JSON by hand or debugging malformed payloads. Free online tool.

Escape and unescape Rust strings in classic and raw string (r#...#) formats. Handles byte escapes (\xHH) and Unicode escapes (\u{HHHHHH}). Free online tool.

Escape and unescape Python strings in classic and raw string formats. Handles hex escapes (\xHH), Unicode escapes (\uHHHH), and extended Unicode escapes (\UHHHHHHHH). Free online tool.

Escape and unescape JavaScript strings in classic and template literal formats. Handles Unicode escapes (\uHHHH) and ES6 extended escapes (\u{HHHHH}). Useful when embedding dynamic content in JS string literals. Free online tool.

Escape and unescape Java strings in classic and text block (Java 13+) formats. Handles Unicode escapes (\uHHHH) and surrogate pairs. Free online tool.

Convert Word documents (.docx) to clean HTML. Strips proprietary Microsoft markup, normalizes heading structure, and produces semantic HTML ready to paste into a CMS or web page. Accepts file uploads. Free online tool — no account required.

Extract clean, readable article text from any web page. Uses Trafilatura to remove navigation, ads, cookie banners, and boilerplate, leaving the main content as plain text or Markdown. Useful for feeding web content to LLMs or archiving articles. Free to try — no login required.