# Data format

Functions in the **Data format** category of the Studio `fx` menu encode, decode, and convert text and structured data.

Start with JSON query tools when you need to select or reshape payloads:

- [JSON Path](./json-path/) — select values from JSON with a JSONPath expression.
- [JSONata](./jsonata/) — query and transform JSON (filter, aggregate, reshape).

Common encoding and decoding:

- [To Base64](./to-base64/) / [From Base64](./from-base64/) — Base64 with alphabet presets.
- [URL Encode](./url-encode/) / [URL Decode](./url-decode/) — percent-encoding for URIs.
- [To Hex](./to-hex/) / [From Hex](./from-hex/) — hexadecimal byte strings.
- [Encode text](./encode-text/) / [Decode text](./decode-text/) — character encodings.

Open a function page from the sidebar for parameters, returned values, and examples. The transform functions overview
also summarizes this category.