Base64 Encoder/Decoder
Easily convert text, images, and files to Base64 format.
Supports files up to 5.0 MB
File Encoding Result
What is File Base64 Encoding?
Converting files to Base64 strings allows binary files such as images and documents to be transmitted in text form.
This is useful when embedding images directly into HTML/CSS, or when sending file data through text-based protocols like JSON or XML. This tool processes files directly in your browser, ensuring your privacy.
FAQ
What file formats are supported?
All file formats are supported, including images (PNG, JPEG, GIF, SVG), documents (PDF, TXT), audio, and video. Any binary file within the size limit can be converted to Base64.
Why is the Base64 string larger than the original?
Base64 encoding represents 3 bytes of binary data as 4 ASCII characters, resulting in roughly a 33% increase in size.