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Developer tools that just work

Format SQL, beautify JSON, merge PDFs, compare texts — and much more. Everything processes 100% locally in your browser, so your data stays completely private.

Try SQL Formatter PDF Utilities

Lightning Fast

All processing happens instantly in your browser — zero network latency.

100% Private

Your data never leaves your device. Zero uploads, zero tracking.

Works Everywhere

No installation needed. Works on Chrome, Firefox, Safari, Edge, and mobile.

Always Free

All 30+ tools are completely free with no usage limits or sign-ups required.

All Available Tools (30)

Pick a tool and start using it instantly — no sign-up or installation required.

SQL Tools(1 tool)

Format and beautify SQL queries with support for multiple dialects including PostgreSQL, MySQL, SQLite, and more.

100% Client-Side Private

JSON Tools(1 tool)

Format, validate, and minify JSON data instantly. Detect syntax errors with precise line and column information.

100% Client-Side Private

YAML Tools(1 tool)

Format and validate YAML documents. Convert between YAML and JSON effortlessly, all in your browser.

100% Client-Side Private

PDF Tools(7 tools)

Combine multiple PDF files into a single document. Drag to reorder pages before merging.

100% Client-Side Private

Split a PDF into multiple files by specifying custom page ranges to extract.

100% Client-Side Private

Reduce the file size of your PDF documents by stripping metadata and optimizing internal structures.

100% Client-Side Private

Extract all text content from a PDF document, organized page by page.

100% Client-Side Private

Convert PDF pages to high-quality PNG, JPEG, or WebP images with customizable DPI resolution.

100% Client-Side Private

Convert JPEG, PNG, and WebP images to a single PDF document with customizable page sizes.

100% Client-Side Private

Rotate PDF pages by 90°, 180°, or 270°. Select all pages or specific ones.

100% Client-Side Private

Text Tools(5 tools)

Convert text between UPPER, lower, Title, Sentence, camelCase, snake_case, kebab-case, and CONSTANT_CASE.

100% Client-Side Private

Count words, characters, sentences, and paragraphs in real time with estimated reading time.

100% Client-Side Private

Compare two texts side by side and see differences highlighted line by line, like a GitHub diff.

100% Client-Side Private

Generate placeholder text in paragraphs, sentences, or words for your designs and prototypes.

100% Client-Side Private

Markdown Preview

Write and preview GitHub Flavored Markdown in real-time with split, edit, and preview modes.

100% Client-Side Private

Developer Tools(13 tools)

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 strings back to text. Supports Unicode UTF-8 and URL-Safe modes.

100% Client-Side Private

Generate cryptographically secure v4 UUIDs in single or bulk batches with custom formatting.

100% Client-Side Private

Password Generator

Generate strong random passwords with custom length, character sets, and bit entropy meter.

100% Client-Side Private

Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hash digests from text or files.

100% Client-Side Private

Convert between CSV and JSON formats with PapaParse engine. Auto-detection and dynamic typing.

100% Client-Side Private

QR Code Generator

Generate QR codes with custom colors, error correction levels. Download as PNG or SVG.

100% Client-Side Private

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

100% Client-Side Private

Timestamp Converter

Convert between Unix timestamps and human-readable dates. Live clock with ISO 8601 and relative time.

100% Client-Side Private

URL Encoder / Decoder

Encode and decode URL strings with encodeURIComponent, encodeURI, and Base64URL modes.

100% Client-Side Private

Color Converter

Convert colors between HEX, RGB, and HSL formats with visual picker and quick presets.

100% Client-Side Private

Test regular expressions with live match highlighting, match details, and preset patterns.

100% Client-Side Private

Format, validate, and minify XML documents. Powered by xml-formatter for robust processing.

100% Client-Side Private

Cron Expression Generator

Build, validate, and understand cron expressions with human-readable descriptions and next runs.

100% Client-Side Private

Media Tools(2 tools)

Image Compressor

Compress JPEG, PNG, WebP, and BMP images with adjustable quality levels powered by Pillow.

100% Client-Side Private

Resize images to exact dimensions with Lanczos resampling. Supports aspect ratio lock and presets.

100% Client-Side Private