Base64 Converter
Encode UTF-8 text or decode standard and URL-safe Base64 locally with normalization warnings for pasted payloads.
LocalText stays in the browser while the converter encodes or decodes Base64.
NormalizeDecode mode can clean whitespace, data URL prefixes, URL-safe characters, and missing padding.
Payload input
Paste plain text, Base64, URL-safe Base64, or a data URL payload.
Conversion results
Add input to encode or decode a payload locally.
Converted output
Review the converted payload before copying it into code, API clients, or docs.
Converted output will appear here.