Base64 File Converter
Herramientas de ConversiónHow to use this Base64 file converter
- To encode: choose any file, it converts to a Base64 string automatically.
- To decode: paste a Base64 data URI (starting with "data:") into the text box.
- Click "Decode & Download File" to reconstruct and save the original file.
How does decoding work?
Paste a Base64 data URI (starting with "data:") into the text area and click download to reconstruct the original file, everything happens locally in your browser.
Why does Base64 make files bigger?
Base64 encodes binary data using only text-safe characters, which adds about 33% overhead, a necessary tradeoff for embedding files in text formats like JSON, HTML, or email.
Can I encode very large files?
Yes, but browser memory becomes the practical limit for very large files (typically hundreds of MB), since everything is processed in your device's RAM.