Base64 Encode/Decode
Encode text to Base64 or decode Base64 strings back to text.
Drag a file here or click to select
Max 5MB
What is Base64?
Base64 is an encoding method that converts binary data into ASCII strings.
• Widely used in email attachments, data URIs, and API communication.
• Encoding increases the size by approximately 33%.
• This is encoding, not encryption — do not use it to protect sensitive data.
• This tool runs entirely in your browser — no data is sent to the server.