Decode Base64 encoded text or files back to their original format with this free online tool. Supports multiple output encodings (UTF-8, ASCII, UTF-16), manual input, or file upload, with copy and download options. Compatible with all devices.
The Base64 Decoder Tool is a free online utility that converts Base64 encoded text or files back to their original format. This tool supports multiple output encodings (UTF-8, ASCII, UTF-16, ISO-8859-1, Windows-1252) and is essential for developers who need to decode data received from APIs, email attachments, or any Base64-encoded source.
Select "Manual Input" to paste Base64 encoded text, or choose "Upload File" to decode a file. Select your preferred output encoding (UTF-8 is recommended for most cases), then click "Decode" to convert back to the original format. Use "Copy Result" to copy the decoded 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 decoder is fast, accurate, and completely free. It's perfect for decoding images embedded in CSS/HTML, extracting data from API responses, decoding email attachments, or debugging data transmission issues. The tool features instant decoding, copy-to-clipboard functionality, file upload support, and works seamlessly on all devices including smartphones, tablets, and desktop computers. No installation or signup required – just open and decode!
Base64 decoding is the process of converting Base64 encoded text back to its original binary or text format. It reverses the Base64 encoding process, allowing you to retrieve the original data from its encoded representation.
Yes! Our Base64 decoder is completely free with no limitations, no registration required, and no hidden charges. Use it as many times as you need without any restrictions.
Absolutely! All decoding happens locally in your browser using JavaScript. Your data never leaves your device and is not sent to any server, ensuring complete privacy and security.
Yes! Click the "Upload File" button to select and decode any Base64 encoded file. The tool will convert the file content back to its original format, which you can then copy or download.
UTF-8 is recommended for most cases as it supports all Unicode characters and is widely used. Use ASCII for simple English text, UTF-16 for languages with special characters, and ISO-8859-1 or Windows-1252 for legacy systems.
Error messages typically indicate invalid Base64 input. Ensure your input contains only valid Base64 characters (A-Z, a-z, 0-9, +, /, =) and has proper padding. Remove any extra spaces or line breaks if necessary.