You don't have javascript enabled. Please enable javascript to use this website.
Base64 Decoder

Base64 Decoder

Decode instantly any base64 string

Decode Clear


Copy Copied

Explore More Useful Encoding & Decoding Tools:

   Base32 Encoder
   Base32 Decoder
   Base58 Encoder
   Base58 Decoder
   Base64 Encoder

What is a Base64 Decoder?

A Base64 Decoder is a digital tool that decodes Base64-encoded text back into its original binary data.


How Does a Base64 Decoder Work?

  1. Base64 Input: You input the Base64-encoded text.
  2. Character to Binary Mapping: Each Base64 character is mapped back to its corresponding 6-bit binary value.
  3. Padding Removal: If the encoded text contains padding characters (`=`), they are removed.
  4. Binary Data Reconstruction: The 6-bit chunks are combined to form the original binary data.
  5. Binary to Original Format: The decoded binary data is converted back to its original format, such as text, image, or other binary data.

Why Use a Base64 Decoder?

  • Data Recovery: Decoding Base64-encoded data to recover the original format.
  • Web Development: Decoding Base64-encoded images or other resources.
  • Security Analysis: Analyzing encoded data to identify potential vulnerabilities.
  • Data Transmission: Receiving and decoding Base64-encoded data transmitted over text-based protocols.

By using a Base64 Decoder, you can restore the original binary data from its Base64-encoded representation.