Base64 String

Base64 to Image

Best online base64 to image converter

Base64 encoders allow you to embed images in the HTML, CSS HTML, CSS, or JavaScript. Images encoded with Base64 become an element of the HTML and are displayed without loading any files.

The base64 encoded images decrease the number of HTTP requests to download the page. Encoding with base64 can help you reduce HTTP requests! If you have to load several small images, this will increase the volume of HTTP requests. In that scenario, it could be worthwhile to convert your images to base 64. This makes the size of files approximately 33% larger than their binary representations. With HTTP/2, this method is not as important, since the multiplexing can reduce its impact on HTTP requests.

This online tool can encode JPEG, PNG, and GIF images using the base64 format. All you need to do is upload the image to the tool and it will be converted automatically.

The program also decodes the base64 string to return the image in Unicode data (JPG, PNG, and GIF formats).

base to image

What do you get with Base64 to create an image decoder?

  • This tool assists in converting text or string that is base64 to images.
  • After you have converted the image After conversion, you are able to download it as a png image file.
  • This tool will help you transform the Base64 String into an image with ease.
  • Base64 encoder tool allows loading of the Base64 text file to convert into an Image. Click the button Upload File, and choose File.
  • Base64 and Image Online work well on Windows, MAC, Linux, Chrome, Firefox, Edge, and Safari.


About base64

Base64 is a binary-to-text encryption scheme, which encodes binary data as plain text. Base64 encodes Binary data using an ASCII string format.

Base64 allows the transmission of data without losing or alteration of the data. It is helpful for protocols that require ASCII data.

Base64 is an encoding algorithm that transforms any characters into an alphabet that consists of letters, digits, pluses, and slashes.

Thanks to it, you can convert Chinese characters, emojis, and even images into a “readable” string, which can be saved or transferred anywhere.

Imagine that during a phone call Alice wants to send an image to Bob.

When Bob wants to find a perfect version of the image, he must do more than simply describe the look. He needs to have a sample of it.

Alice converts the image to the binary system and dictates to Bob the binary digits (bits), then he will be able to convert them back to the original image.

The second problem is that the tariff for phone calls is too expensive and dictates each byte as eight binary digits will last too long.

By reducing costs, Alice and Bob agree to use a more efficient data transfer method. They agree to replace every “six-digit” number with one “letter”.

To realize the difference, check out a 5x5 image converted to binary digits:

010001 110100 100101 000110 001110 000011 011101 100001 000000 010000 000000 000001 000000 001111 000000 000000 000000 001111 111100 000000 000000 000000 000000 000000 000000 000010 110000 000000 000000 000000 000000 000000 000000 010000 000000 000001 000000 000000 000000 000010 000000 100100 010000 000001 000000 000011 001011

Although the same image converted to Base64 looks like this:

Even if you removed spaces and padding zeros from binary digits, the Base64 string would still be shorter.

I grouped bits only to show that each group meets each character of the Base64 string.

The story about Alice and Bob is just a thought-out example to tell you what kind of problem the Base64 algorithm solves. Q:

When transmitting binary data over the network, or storing the data in databases, the binary data must be converted into text in some way.

Why Is Base64 Encoding Used?

Binary data is usually in raw form when it's sent to text-based systems, which causes issues such as corruption in the media stream. To solve this problem, you can use Base64 encoding.

Email interprets binary data as a wide range of characters, so it often becomes corrupted or lost during the transmission process.

One way to transmit binary data to a computer over a serial port in a way that avoids these transmission problems is to encode it as Base64 and send it as plain ASCII text.

This is an important technique used in the MIME standard for sending data other than plain text.


Base64 started out way back when in those days when engineers argued about how many bits should go into a byte.

Before this was used in the form of eight-bit, seven-bit, six-bit, and even three-bit bytes.

While the 8-bit encoding was still in the works, many systems supported it. In fact, many still do not support it today.

This means the new and the old system were incompatible.

A mail server could simply discard the eighth bit when sending an email.

In addition, there were other problems with the mail servers — they could only send text, but not binary data (such as images, videos, archives


Clever minds develop an algorithm to solve these problems.

After base64 had become the de-facto standard, new approaches were developed. In fact, other ways of representing binary data (e.g.

1. The description of the algorithm was first published in a paper in

2. It was documented as a PEM protocol in an RFC in

Since then, the algorithm has evolved, giving rise to new standards that are actively used throughout the world of IT.



Initially, the algorithm was named as “printable encoding” and only after a couple of years, in June 1992, RFC 1341 defines it as “Base64”

This algorithm uses 64 basic characters, so it's only natural to give it a name. There already exist several algorithms called Base85.

This means that you won't have any problem at all guessing the names of the algorithms such as Base16, Base32, Base36, Base58, Base91, or Base122


During encoding, the Base64 algorithm converts every three bytes into four bytes and, if necessary, adds padding characters to ensure that the result is a multiple of four.

If we consider that all integers are stored in base 10, then the size of the result will always be 33 percent (more precisely, 4⁄3. larger than the original data.

The formula for calculating the length of the result string without padding is as follows: n * 4 / 3, where n is the length of the original data.


Base 64 Encoding binary data as base64 can be used to embed binary data in text-based data formats. For example, images can be encoded to use fewer bytes when transferred over HTTP.

Data is usually encoded when the content to be transferred, stored, or output is not supported or damaged during the transfer, storage, or output.

One of the applications of the algorithm is:


  • Attach files when sending emails
  • Embed images in HTML or CSS via data URI
  • Preserve raw bytes of cryptographic functions
  • Output binary data as XML or JSON in API responses
  • Save binary files to the database when BLOB is unavailable
  • Hide secrets from prying eyes (really a very bad idea)


Base64 is not an encryption algorithm and it shouldn’t be used to “hash” passwords or “encrypt” sensitive data because it’s a reversible algorithm and the encoded data can be easily decoded.

Base64 is only used to encode the result of a cryptographic function.

This is one of the more interesting security topics. For those that don't know Base64, it is a binary encoding system that looks like text. In a nutshell, Base64 encodes and decodes data.

Unfortunately, even they can understand the meaning of the encoded message simply by using an online translator, which instantly returns the original message.


As you start to walk on the way, the way appears.-Rumi

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