Essential Browser-Based Developer Tools
As a developer, you constantly need small utility tools — formatting JSON, encoding URLs, generating UUIDs, testing regex patterns. Instead of installing packages or visiting ad-heavy sites, ToolBox gives you 280+ developer tools that run instantly in your browser.
Code Formatters & Validators
Our JSON Formatter, CSS Beautifier, SQL Formatter, and HTML Prettifier help you clean up messy code instantly. The JSON Validator checks syntax errors in real-time, and our YAML Validator catches common indentation issues.
Generators That Save Hours
Generate Dockerfiles, nginx configs, .gitignore files, README templates, package.json scaffolds, and more. Each generator uses sensible defaults and best practices so you get production-ready output.
Encoding & Security Tools
Base64 encode/decode, URL encode/decode, JWT decoder, UUID generator, password generator, hash info — all the security and encoding tools a developer needs, with no data sent to any server.
Data Conversion Pipeline
Convert between JSON, YAML, XML, TOML, CSV, and SQL. Turn JSON into TypeScript interfaces, Python dataclasses, or Go structs. Create SQL INSERT statements from JSON arrays. All transformations happen client-side.