Base64 Encode/Decode
Encode text to Base64 or decode Base64 back to text — instantly.
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What is Base64 Encoding?
B6Base64 Encode
Convert text or data to Base64 encoded strings online — the standard encoding format used in email attachments, JWT tokens, data URLs, and API authentication headers.
"Hello World" → "SGVsbG8gV29ybGQ="
D6Base64 Decode
Decode Base64 strings back to readable text instantly. Essential for developers debugging API responses, reading encoded cookies, or inspecting JWT payloads.
"SGVsbG8gV29ybGQ=" → "Hello World"
UcCommon Use Cases
Base64 encoding is used in HTML image src (data:image/png;base64,...), CSS backgrounds, email MIME encoding, and storing binary data as text in JSON or XML.
data:image/png;base64,iVBOR...