Base64 does not protect data
Base64 only encodes bytes as text. Anyone can decode it, so it cannot hide passwords or other secrets. The tool works locally using UTF-8.
Base64 encode / decode
Base64 is not encryption. It represents bytes as text and does not provide confidentiality.
Reviewed: 23 September 2026
No account required. Local tools keep your input in your browser.
Frequently asked questions
Is Base64 encryption?
No. Base64 is an encoding that represents data with a limited character set. Anyone can decode it without a key.
Does it support accented characters and other Unicode text?
Yes. Text is handled as UTF-8, so you can encode and decode accented letters, emoji and other Unicode characters.
Is the content sent to splet.me?
No. Encoding and decoding happen locally in the browser.
Is this the same as Base64URL?
Not automatically. Base64URL uses a slightly different character set and often omits final padding, so check the format before substituting one for the other.
Related
Next steps
RelatedURL encode / decodeEncode or decode a URL component with encodeURIComponent and decodeURIComponent, directly in your browser.RelatedJSON formatter and validatorFormat and validate JSON locally in your browser. Your JSON is not sent to the server for formatting.RelatedStrong password generatorGenerate a random password locally using the Web Crypto API. The password is not sent to splet.me.