Open Base64 encoder and decoder
What problem does this solve?
Encode or decode UTF-8 text using standard or URL-safe Base64 with padding and pad-bit validation.
Step by step in ViBytes Tools
- Enter text or Base64 according to the selected operation.
- Choose standard with padding or URL-safe without padding.
- Process and copy the full result even if the preview is partial.
Worked example and how to check it
Input: Text hello, standard encoding.
Expected result: aGVsbG8=; decoding returns hello.
Common mistakes and decisions
Base64 represents bytes: accented letters and emoji are first encoded as UTF-8. Standard mode uses +, / and = padding; this tool’s URL-safe mode uses - and _ without padding. Do not mix alphabets or treat decoded text as executable code.
Limits before you continue
- Base64 is not encryption and does not hide secrets. This tool accepts UTF-8 text, not arbitrary binary files.
- Up to 100,000 UTF-16 units. Only spaces, tabs and CR/LF are ignored when decoding; invalid UTF-8 is rejected.
Frequently asked question
Can I use it to hide a password?
No. Anyone can decode it; it provides neither confidentiality nor authentication. Avoid entering unnecessary secrets.