Format, validate and beautify JSON instantly. Catches errors, shows structure clearly.

Convert text to Base64 and back. Perfect for encoding API credentials or debugging.

Generate valid UUIDs (v4) instantly. Bulk generation supported, copy with one click.

Convert between HEX, RGB, HSL. Visual picker, accessible contrast checker included.

Test regular expressions in real-time. See matches, groups, and explanations live.

Generate MD5, SHA-1, SHA-256, SHA-512 hashes. Fast cryptographic hashing tool.

Encode and decode URLs safely. Perfect for query strings and API parameters.

Decode and inspect JSON Web Tokens. View header, payload, and check expiration.

Convert Unix timestamps to dates and vice versa. Real-time clock included.

Generate placeholder text for mockups. Paragraphs, sentences, or words.

Generate strong, cryptographically secure passwords. Customizable length and character types.

Create QR codes for URLs, WiFi, contact info. Download as PNG with custom sizes.

Compress images while maintaining quality. 100% client-side, supports JPG, PNG, WebP.

Compress and optimize CSS code. Remove whitespace, comments for faster page loads.

Compare two texts side-by-side. See differences highlighted. Perfect for code review.

Format and beautify SQL queries. Supports MySQL, PostgreSQL, SQL Server and more.

Real-time GitHub Flavored Markdown preview. Export to HTML. Perfect for docs.

Beautify and minify HTML code. Customizable indentation. Clean code output.

Convert JSON to CSV for Excel. Download as .csv file. Perfect for data analysis.

Convert text between camelCase, snake_case, kebab-case and more. 8 case styles.

Encode and decode HTML entities. Convert special characters safely for web.

Complete keyboard shortcuts reference. Search by OS (Windows, Mac, Linux).

Build cron expressions visually. See human-readable explanations instantly.