Encode and decode Base64 strings and files with support for multiple formats.
Do not execute or open decoded files from untrusted sources. Base64 encoding is not encryption and provides no security.
Encode text to Base64 or decode Base64 back to original text with full Unicode support.
Upload and encode any file type including images, documents, and binary files.
Support for UTF-8, ASCII, and Latin-1 character encodings for maximum compatibility.
Base64 is an encoding scheme that converts binary data into a text format using 64 printable ASCII characters. It's commonly used to encode binary data, images, and files for transmission over text-based protocols like email or HTTP. The encoding ensures that data remains intact during transport without modification.
To encode text to Base64: 1) Enter or paste your text in the input field, 2) Click the 'Encode' button, 3) Your Base64-encoded result will appear in the output field. You can then copy or download the result. The entire process is instant and secure.
To decode Base64 to text: 1) Paste your Base64-encoded string in the input field, 2) Click the 'Decode' button, 3) The decoded text will appear in the output field. If the Base64 string is invalid, you'll receive an error message.
Yes! You can encode any file type to Base64 by clicking the 'Upload File' button and selecting your file. The tool supports text files, images, documents, and binary files up to 10MB in size. The file content will be automatically encoded to Base64 format.
Base64 encoding is NOT encryption and provides no security. It's simply an encoding format that converts data to text. Anyone can easily decode Base64-encoded data. Do not use Base64 to protect sensitive information - use proper encryption instead.
Our Base64 tool supports UTF-8 (default and recommended), ASCII, and Latin-1 (ISO-8859-1) character encodings. UTF-8 provides the best compatibility for international characters and emojis. You can select your preferred encoding from the settings dropdown.
Base64 encoding is used to: 1) Embed images and files in HTML/CSS as data URLs, 2) Encode binary data for transmission over text-based protocols, 3) Store binary data in JSON or XML, 4) Encode credentials for HTTP Basic Authentication, 5) Transmit binary attachments in emails (MIME), and 6) Ensure data integrity during transport.
Yes! All encoding and decoding operations are performed locally in your browser using JavaScript. No data is uploaded to our servers or transmitted anywhere. Your files and text remain completely private and secure on your device.