Text Base64 encoder and decoder
Encode UTF-8 text as Base64 or decode Base64 back to UTF-8.
Local processing · Nothing is uploaded · 1 MB input limit
Input & settings
Ready. Enter your input to begin.
How to use this tool
Choose encode or decode. The result can be copied or downloaded as text.
Limits and behavior
Decoding requires standard, canonical, padded Base64 without whitespace. URL-safe Base64 and arbitrary binary data are not supported by this text workflow. Input is limited to 1 MB and output to 3 MB. No input content is saved by CraftAI.
Encode and decode Base64 text
Use this Base64 converter when a developer workflow requires representing UTF-8 text in Base64 form or decoding Base64 back into text.
Is Base64 encryption?
No. Base64 is reversible encoding, not secure encryption. Anyone with the encoded data can decode it.
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