Use the Base64 Encoder & Decoder in three steps
Paste the value
Enter readable text or a Base64 string.
Encode or decode
Choose the operation that matches the input.
Copy the output
Use the transformed value in your workflow.
Encoding is not encryption
Base64 changes how bytes are represented so text-based systems can carry them. Anyone can reverse it, so never use it as protection for a secret.
Unicode is converted through UTF-8
Emoji, accented letters, and non-Latin scripts are first converted to UTF-8 bytes. This avoids the corrupted characters produced by older ASCII-only browser snippets.
Base64 Encoder & Decoder FAQ
Is Base64 secure?＋
No. It is a reversible encoding and must not be used instead of encryption.
Why does Base64 end with equals signs?＋
One or two equals signs may be added as padding so the encoded length aligns with Base64 blocks.
Can I encode emoji and non-English text?＋
Yes. The tool converts Unicode text through UTF-8 before Base64 encoding.
Why is the encoded value longer?＋
Base64 represents every three bytes with four text characters, so output is commonly about one-third larger.
Are spaces and line breaks in Base64 allowed?＋
Whitespace is ignored during decoding, which helps with Base64 copied from wrapped text.
Can this decode arbitrary binary files?＋
This page is designed for Base64 that represents valid UTF-8 text, not arbitrary binary downloads.