Developer Calculators & Tools

Explore practical developer tools from URTools. Each tool includes an explanation of the method and common limitations.

Base64 Encoder & Decoder

Encode and decode Base64 text in your browser.

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JSON Formatter & Validator

Format and validate JSON directly in your browser.

Unix Timestamp Converter

Convert Unix timestamps to readable dates and back.

URL Encoder & Decoder

Encode and decode URL components safely.

UUID Generator

Generate UUID v4 identifiers locally in your browser.

About Developer tools

These tools are designed for common developer tasks. Open an individual tool to see how the calculation works, a worked example, assumptions, FAQs and related tools.