Do you have a Base64-encoded image that you want to convert to a BMP format? If so, you can use this tool to easily decode and save your image as a BMP file.
Base64 to BMP Converter
Input: Base64 Image
What is Base64?
Base64 is a widely employed binary-to-text encoding system utilized for converting binary data, such as images, audio files, and other binary content, into ASCII text format. This encoding facilitates the representation of binary data as text, simplifying its transmission over text-based protocols like email or HTTP.
What is Base64 Decoding?
Decoding, in a general sense, refers to the process of converting encoded data back into its original, human-readable form. This process is the reverse of encoding, where information is transformed to ensure data integrity or efficient transmission.
In the context of Base64, decoding specifically refers to the reversal of the Base64 encoding process. As mentioned earlier, Base64 encoding converts binary data into ASCII text format. To decode Base64-encoded data, you take the Base64-encoded text and transform it back into its original binary representation.
How Does Base64 Decoding Work?
Base64 decoding works by taking a Base64-encoded string and converting it back into its original binary form. The process involves the following steps:
- Breaking into 4-character chunks: The Base64-encoded text is divided into chunks of four characters each. Each character in the chunk represents 6 bits of the original binary data.
- Mapping to binary values: Each character in the chunk is mapped to its corresponding 6-bit binary value. This mapping is predefined in the Base64 encoding standard.
- Combining bits: The 24 bits from the four characters are combined into three 8-bit bytes, reconstructing a portion of the original binary data.
- Repeating the process: Steps 1-3 are repeated for each 4-character chunk in the encoded text until the entire encoded string is processed.
- Handling padding: Base64 encoding often involves padding with ‘=’ characters to ensure that the length of the encoded text is a multiple of 4. During decoding, these padding characters are ignored.
- Outputting the binary data: The result of the decoding process is the original binary data that was encoded using Base64.
What is BMP?
The BMP file format, also known as bitmap, is a raster graphics image file format used to store bitmap digital images, independently of the display device (such as a graphics adapter), especially on Microsoft Windows and OS/2 operating systems.
What is the Base64 to BMP Converter?
A Base64 to BMP Converter is a program that converts a Base64 encoded string into a BMP image. Simply paste your Base64 encoded string into the tool’s input box, and it will convert it to a BMP picture for you.
How Do I Use the Online Base64 to BMP Image Decoder?
- First, paste the encoded Base64 image.
- No need to press a button, wait until Base64 is decoded. For large images, this may take longer.
- The decoded BMP image will automatically appear in the Output box.
- If you want, you can download the result using the Download button.
How does the Base64 to BMP Converter work?
A Base64 to BMP converter works by taking a Base64-encoded string representing a BMP (Bitmap) image and decoding it to retrieve the binary BMP data.
Why would I need to convert Base64 to BMP?
Converting Base64 to BMP is useful in scenarios where data, especially images, is transmitted or stored in a Base64-encoded format. This conversion is relevant in web development for displaying BMP images on websites, handling image data in APIs, or integrating with systems that prefer BMP format. It is also beneficial for file handling, compatibility with legacy systems, image processing tools that work with BMP, and recovering original files from Base64-encoded data. The need for this conversion depends on the specific requirements of an application, system, or workflow.
Is it secure to use your Base64 to BMP Converter?
Safe. Our application works exclusively on your device, performing all conversion processes directly within your web browser. There’s no data storage on external servers, so your information remains private and confidential throughout the conversion process.
Base64 Characters
Capitalizing on uppercase letters (A-Z), lowercase letters (a-z), numerical digits (0-9), and two supplementary characters, usually “+” and “/”, forms the ensemble of 64 ASCII characters employed in the Base64 encoding scheme. In cases where the binary data’s length is not a multiple of three bytes, the “=” character is introduced for padding purposes.
| Value | Character | Binary Value |
|---|---|---|
| 0 | A | 000000 |
| 1 | B | 000001 |
| 2 | C | 000010 |
| 3 | D | 000011 |
| 4 | E | 000100 |
| 5 | F | 000101 |
| 6 | G | 000110 |
| 7 | H | 000111 |
| 8 | I | 001000 |
| 9 | J | 001001 |
| 10 | K | 001010 |
| 11 | L | 001011 |
| 12 | M | 001100 |
| 13 | N | 001101 |
| 14 | O | 001110 |
| 15 | P | 001111 |
| 16 | Q | 010000 |
| 17 | R | 010001 |
| 18 | S | 010010 |
| 19 | T | 010011 |
| 20 | U | 010100 |
| 21 | V | 010101 |
| 22 | W | 010110 |
| 23 | X | 010111 |
| 24 | Y | 011000 |
| 25 | Z | 011001 |
| 26 | a | 011010 |
| 27 | b | 011011 |
| 28 | c | 011100 |
| 29 | d | 011101 |
| 30 | e | 011110 |
| 31 | f | 011111 |
| 32 | g | 100000 |
| 33 | h | 100001 |
| 34 | i | 100010 |
| 35 | j | 100011 |
| 36 | k | 100100 |
| 37 | l | 100101 |
| 38 | m | 100110 |
| 39 | n | 100111 |
| 40 | o | 101000 |
| 41 | p | 101001 |
| 42 | q | 101010 |
| 43 | r | 101011 |
| 44 | s | 101100 |
| 45 | t | 101101 |
| 46 | u | 101110 |
| 47 | v | 101111 |
| 48 | w | 110000 |
| 49 | x | 110001 |
| 50 | y | 110010 |
| 51 | z | 110011 |
| 52 | 0 | 110100 |
| 53 | 1 | 110101 |
| 54 | 2 | 110110 |
| 55 | 3 | 110111 |
| 56 | 4 | 111000 |
| 57 | 5 | 111001 |
| 58 | 6 | 111010 |
| 59 | 7 | 111011 |
| 60 | 8 | 111100 |
| 61 | 9 | 111101 |
| 62 | + | 111110 |
| 63 | / | 111111 |
