JSON Formatter
Format, minify and validate JSON with useful syntax errors.
Developer toolsBase64 Encoder / Decoder
Encode Unicode text to Base64 or decode it back to text.
Processed locally in your browser — your data is not uploaded.Loading your tool…
How to use Base64 Encoder / Decoder
- Choose encoding or decoding.
- Enter text or Base64.
- Process and copy the result.
Does Base64 encrypt data?
No. Base64 is reversible encoding and provides no secrecy.
No sign-up is required. The calculation or transformation happens in this browser tab and the result is available immediately.
A useful next step
Cleaning and validating data locally in your browserSeparate syntax checks, text cleanup, encoding and integrity verification while keeping working data in the browser.Good to know
Does it support Unicode?+
Yes. Text uses UTF-8 during conversion.
Can decoded input contain whitespace?+
Yes. Spaces and line breaks are ignored.
Is my input uploaded?+
No. This tool runs in your browser and does not send input or results to Metyris or a third-party processor.