Developer Tools
Explore Developer Tools Tools
All-in-one developer tools utilities — free, fast, and no signup required.
15 tools available
All Developer Tools Tools
Browse by subcategory or pick a tool below
Data & Encoding
7UUID Generator
Generate random UUIDs (v4), validate existing ones, and create batches instantly. Features history and bulk operations.
Launch toolBase64 Encode / Decode
Robustly encode and decode Base64 strings, including URL-safe variants and binary data.
Launch toolURL Encode / Decode
Encode and decode URLs with support for full URLs and query parameters. Handles Unicode, detects already-encoded strings…
Launch toolHash Generator
Generate secure hash values (SHA-256, SHA-512, SHA-1, etc.) from text or files. Supports multiple algorithms and handles…
Launch toolURL Parser
Parse and analyze URLs to extract protocol, host, path, query parameters, and hash. Decode and display URL components.
Launch toolQuery String Builder
Build and encode URL query strings from key-value pairs. Add, edit, or remove parameters with automatic encoding.
Launch toolJWT Decoder
Decode and inspect JWT tokens. View header, payload, and signature with expiration validation and claim descriptions.
Launch tool
Formatters
7JSON Formatter & Validator
Validate, repair, beautify, and minify JSON data. Features real-time error highlighting and auto-fix for common syntax i…
Launch toolHTML Formatter
Beautify and format HTML with proper indentation. Works with fragments and embedded styles/scripts.
Launch toolJavaScript Minifier
Minify JavaScript files by removing whitespace, comments, and unnecessary characters. Optimize your scripts for producti…
Launch toolCSS Minifier
Minify CSS files by removing whitespace, comments, and unnecessary characters. Optimize your stylesheets for production.
Launch toolXML Formatter
Format, validate, and minify XML documents with proper indentation. Detect syntax errors and beautify your XML data.
Launch toolSQL Formatter
Format and beautify SQL queries with syntax highlighting. Support for multiple SQL dialects including MySQL, PostgreSQL,…
Launch toolYAML Formatter
Format, validate, and minify YAML documents. Convert between JSON and YAML formats with customizable options.
Launch tool
Free Online Tools for Every Task
DozoTools offers free online tools for PDF, text, image, and developer tasks. No signup required—use our productivity and formatting tools anytime. From JSON formatters to calculators, we've got you covered.
Boost Your Productivity
One place for PDF, text, image, and developer tools. Get more done with our free utilities—compress files, convert formats, and automate small tasks without leaving your browser.
Essential Business Utilities
Convert, calculate, and optimize with our business and finance tools. Generate invoices, track expenses, and run loan or EMI calculations in seconds.
Convert, Calculate & Optimize
Handle conversions, hashing, encoding, and formatting in one place. All tools run in your browser so your data stays private and secure.