Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 back to readable text.
How Base64 Encoding and Decoding Works
Convert ASCII strings and binary buffers into 64-character radix representation and back.
Calculation & Methodology
3 Binary Bytes (24 bits) $\rightarrow$ 4 Base64 Characters (6 bits each)
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Open JSON ValidatorFrequently Asked Questions
Is Base64 a method of encryption?
No, Base64 is an encoding format designed for safe data transmission, not secure data encryption.
Why does Base64 increase data size?
Representing 3 bytes across 4 ASCII characters introduces approximately 33% data overhead.