About This Tool
Convert plain text to Base64 encoding or decode Base64 strings back to readable text. Base64 is commonly used for embedding data in URLs, API tokens, email attachments, and data URIs in HTML/CSS.
Free Tool
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 strings back to plain text. Free online Base64 conversion tool.
Frequently Asked Questions
Base64 is a binary-to-text encoding scheme that represents binary data using 64 ASCII characters (A-Z, a-z, 0-9, +, /). It is used to safely transmit binary data over text-based protocols.
No. Base64 is an encoding, not encryption. Anyone can decode a Base64 string. Do not use it to protect sensitive data.
Base64 uses 4 characters to represent every 3 bytes of data, resulting in roughly 33% size increase.
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