# Base64 Converter

> Encode and decode Base64 strings.

Page: https://askcalculators.com/calculator/base64-converter/
Definition: https://askcalculators.com/calculator/base64-converter/definition.json
JSON Schema: https://askcalculators.com/calculator/base64-converter/schema.json
Version: 7.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/base64-converter/?text=Hello+World&mode=encode

## Inputs
- text: Text; type=text; optional; default=Hello World
- mode: Mode; type=select; optional; default=encode

## Outputs
- result: Result; format=text; primary

## Formula
Encode converts UTF-8 bytes to Base64; decode converts valid Base64 bytes back to UTF-8 text.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.