Free encoding tool
Encode text to Base64 or decode Base64 to UTF-8 online. Free, instant, browser-only processing with full Unicode support and no uploads.
Your result will appear here.
About this tool
Convert readable UTF-8 text to its Base64 representation or decode valid Base64 back to text. Unicode characters are handled correctly rather than treated as single-byte ASCII.
Text is converted to UTF-8 bytes with TextEncoder before Base64 encoding. Decode mode reverses the process and rejects malformed Base64 or byte sequences that are not valid UTF-8.
Common uses
Scope
Worked example
Use the prefilled value in the tool above or paste a similar value of your own.
odmin.biz — private browser tools
b2RtaW4uYml6IOKAlCBwcml2YXRlIGJyb3dzZXIgdG9vbHM=
Quick answers
No. Anyone can decode Base64. Use established encryption when confidentiality is required.
Yes. Input is encoded as UTF-8 first, so Unicode text is preserved correctly.
Equals signs are optional padding characters used to complete a four-character Base64 block.