Base64 Encode / Decode
Encode and decode UTF-8 text with Base64 for APIs, debugging, and light data transformations.
JSON FormatJSON ValidateBase64URL EncodeTimestampUUIDJWT DecodeHashRegexHTML EntitySQL FormatYAML to JSONJSON to YAML
Settings
Input
Type or paste content directly. Processing stays in the browser whenever possible.
Example data
Output
Process some input and the result will appear here.
Process some input and the result will appear here.
How to use
Enter raw text or Base64 content.
Choose encode or decode mode.
Use swap input/output to reverse the flow quickly.
Best for
Debug Basic Auth, frontend storage, and API parameters.
Inspect how UTF-8 text behaves in Base64 form.
Handle quick two-way text transformations.
FAQ
Does it support non-English text?
Yes. The tool encodes and decodes text as UTF-8.
What happens with invalid Base64?
A clear error is shown instead of failing silently.
Can I download the result?
Yes. Text output can be downloaded as a txt file.