What are code tools?
Code tools are lightweight browser utilities that format, validate, convert, or inspect code and structured data — without requiring an IDE, terminal, or any installed software. They handle tasks that come up constantly in development work: prettifying a minified JSON response, validating a YAML config before deploying, converting between data formats, or checking syntax errors in a payload. Because they run entirely in your browser, no code or config data is ever uploaded or stored.
Common uses for online code tools
Code tools save time on repetitive formatting and validation tasks that come up throughout the development workflow:
- Formatting and validating JSON payloads from API responses, logs, or configuration files
- Prettifying YAML configs that have been minified or poorly indented
- Converting between JSON and YAML when switching between config formats
- Encoding and decoding Base64 strings for debugging authentication headers or data URIs
- Checking syntax errors in structured data before committing or deploying
- Quickly inspecting or reformatting data from clipboard without opening a full code editor