Does Base64 encoding increase file size?

Yes. Base64 encoding typically increases data size by about 33%, because every 3 bytes of raw data becomes 4 Base64 characters.

Can I decode the Base64 back to the original file?

Yes. Base64 is a reversible encoding. Use the decode function to restore the original file or image without data loss.

Encode and decode files, images and text as Base64

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Encoding & Security

Mode

Select local fileClick to select or drag files here

Choose a local file or paste text, select Encode or Decode in the tool panel, then run to convert between files and Base64.

1.
Does Base64 encoding increase file size?
Yes. Base64 encoding typically increases data size by about 33%, because every 3 bytes of raw data becomes 4 Base64 characters.
2.
Can I decode the Base64 back to the original file?
Yes. Base64 is a reversible encoding. Use the decode function to restore the original file or image without data loss.