Developer Tools That Respect Your Privacy
Free online utility tools for developers. Everything runs in your browser — nothing is uploaded, nothing is tracked, nothing is stored.
100% Private
All tools run client-side. Nothing leaves your browser.
No Sign Up
Free to use. No accounts, no emails, no nonsense.
Blazing Fast
Zero server latency. Results appear instantly in your browser.
Always Free
No hidden fees, no usage limits, no premium tiers.
All Developer Tools
18 free tools across 7 categories. Every tool runs 100% in your browser.
Formatters
Format and beautify your code and data
JSON Formatter
Format, validate, and beautify your JSON data with syntax highlighting and error detection.
SQL Formatter
Format and beautify SQL queries for better readability and maintainability.
XML Formatter
Format, validate, and beautify XML data with syntax highlighting.
Encoders & Decoders
Encode and decode data in various formats
Base64 Encoder / Decoder
Encode or decode text and files to and from Base64 format instantly.
URL Encoder / Decoder
Encode or decode URLs and query parameters for proper web transmission.
HTML Entities Encoder
Convert special characters to HTML entities and vice versa for safe web rendering.
Generators
Generate passwords, UUIDs, and more
Password Generator
Generate strong, secure passwords with customizable length and character sets.
UUID Generator
Generate UUID v4 identifiers for databases, APIs, and distributed systems.
Lorem Ipsum Generator
Generate placeholder text for your designs, mockups, and layouts.
Converters
Convert between different formats and units
Text Tools
Manipulate and analyze text content
Image Tools
Process and convert images in your browser
Security
Hash, encrypt, and analyze security data
Why Use WebUtil?
WebUtil is a collection of free online developer tools designed with privacy and performance in mind. Unlike other online tool websites, every tool on WebUtil runs entirely in your browser using client-side JavaScript. Your data never leaves your device — there are no server uploads, no data logging, and no tracking.
Our tools cover a wide range of developer needs: JSON formatting and validation, Base64 encoding and decoding, URL encoding, password generation, UUID generation, color conversion, text case conversion, Markdown preview, text diff checking, YAML/JSON conversion, and more.
Whether you're a web developer, software engineer, or just someone who needs a quick utility, WebUtil provides the tools you need with a clean, fast, and intuitive interface.