Encode text or files to Base64 format with this free online tool. Supports multiple input encodings (UTF-8, ASCII, UTF-16), manual input, or file upload, with copy and download options. Compatible with all devices.
The Base64 Encoder Tool is a free online utility that converts text or files to Base64 format, a binary-to-text encoding scheme that represents binary data in an ASCII string format. This tool supports multiple input encodings (UTF-8, ASCII, UTF-16, ISO-8859-1, Windows-1252) and is essential for developers working with APIs, email attachments, and data transmission.
Select "Manual Input" to type or paste text, or choose "Upload File" to encode a file. Select your preferred input encoding (UTF-8 is recommended for most cases), then click "Encode" to convert to Base64. Use "Copy Result" to copy the encoded output to your clipboard, "Download" to save it as a text file, or "Reset" to clear all fields and start over. The tool runs entirely in your browser, ensuring your data remains private and secure.
Our Base64 encoder is fast, accurate, and completely free. It's perfect for encoding images for CSS/HTML, preparing data for API requests, encoding email attachments, or debugging data transmission issues. The tool features instant encoding, copy-to-clipboard functionality, file upload support, and works seamlessly on all devices including smartphones, tablets, and desktop computers. No installation required – just open and encode!
Base64 is a binary-to-text encoding scheme that converts binary data into a text format using 64 ASCII characters (A-Z, a-z, 0-9, +, /). It's commonly used to encode data that needs to be transmitted over text-based protocols.
Yes! Our Base64 encoder is completely free with no limitations, no registration required, and no hidden charges. Use it as many times as you need.
Absolutely! All encoding happens locally in your browser. Your data never leaves your device and is not stored on any server, ensuring complete privacy and security.
Yes! Click the "Upload File" button to select and encode any file type. The file content will be converted to Base64 format, which you can then copy or download.
UTF-8 is recommended for most cases as it supports all Unicode characters. Use ASCII for simple English text, UTF-16 for languages with special characters, and ISO-8859-1 or Windows-1252 for legacy systems.