Image to Base64

Search Engine Optimization

Image to Base64

Select image to convert
(Size Limit: 2MB per file | Supported Formats: JPEG & PNG)

About Image to Base64

With our free image to Base64 encoder, you can easily copy and paste markup or style for your codebase. A picture may be dragged and dropped, uploaded, or provided as a URL in the controls above, and the encoder will build an image to Base64 encoded version of that image in a few seconds. You don't even need to optimize the image beforehand to generate the data. The picture will be automatically optimized before encoding if the toggle for Optimize image is enabled.

Image to Base64 is an encoding method that turns any text, binary data, or even pictures or sound files into a readable string to ensure that no data is lost during storage or transmission over the network. Base64 encoding produces Latin letters, numerals, pluses, and a slash. Thanks to the program's ability to "read" Chinese characters (emojis included), you may store or transfer them anyplace. MIME (Multipurpose Internet Mail Extensions) transmission encoding is the most prevalent usage of Base64.

Picture data may be embedded in various forms, such as HTML and CSS, using a Base64 encoded image. Because the picture is already embedded in the HTML content, the browser doesn't have to make a separate web request to retrieve it. It takes far longer to encode a huge image into a Base64 representation than to create a distinct image. To get the most excellent results, you should always try embedded and external pictures to discover which works best.

At some point, engineers debated how many bits should be in a byte, and Image to Base64 was born. In the past several years, eight-bit bytes have replaced seven-bit, six-bit, and even three-bit bytes. There were several systems in existence when the eight-bit encoding was accepted as a standard that did not support the "new standard." This resulted in specific data loss during the transfer between the new and old systems. Emails may be sent without the eighth bit, for example.

Furthermore, mail servers could not convey binary data since they could only send a text (images, video, archives). As a result, brilliant brains build an algorithm to resolve these issues in an enchanted fashion. Although various binary-to-text encodings have been created over time, Image to Base64 has been the most widely used because of its simplicity, efficiency, and portability.

If you want to learn more about the algorithm, you may check out RFC 989, Section 4.3, which describes the PEM protocol. It has evolved since then, giving rise to new standards currently in use across the IT industry as a whole.


A few years later, in June 1992, RFC 1341 renamed the technique "Base64" from "printable encoding." It wasn't hard to develop a name for this algorithm because it just needs 64 letters (primarily that Base85 already existed). You should be able to figure out the meaning of the names of algorithms like Base16, Base32, Base36, and so on.


To ensure that the final encoding value is always a multiple of four, the Base64 algorithm substitutes each set of three bytes with four and, if required, inserts padding characters. Simply said, the output will always be 33% bigger than the original data (more precisely, 4x3). If you want to know how long the output string will be without padding, you can use the following formula: n * 4 / 3.

Upload a picture

To upload an image file, click inside the file dropbox or drag and drop an image file into the provided area.

Begin the process of converting

Click the "Convert to Base64" button to begin the conversion procedure.

Wait a few seconds

Wait for the results to appear. After the result is achieved, take screenshots or copy and paste the results into a browser.

  • With this program, you may quickly and easily convert an image to a Base64 group.

  • PNG, JPEG, GIF, and a slew of other image formats are all supported. Data URIs are limited to 32 bytes in Internet Explorer 8. There is no support for versions lower.

  • The maximum file size for uploading images is 4 MB.

  • IMG using Base64 as the src, creates HTML code for Base64 encoded picture (data source).

  • It also generates the CSS background code for an Image using base64.

  • The Base64 encoding tool may be used to load an image file. Select File from the Upload Image button.

  • Images may be converted to Base64 using Image to Base64 Online on any operating system and browser.


You should never "hash" passwords or encrypt sensitive data, such as credit card numbers or social security numbers, using Base64 since it is a reversible method, and the encoded data is easily deciphered. The raw output of a cryptographic function can only be encoded using Base64.

In terms of information security, Base64 is merely a foreign language that certain individuals are unable to comprehend. However, even they may decipher the message's meaning by employing an internet translator, which restores the original message in a matter of seconds.

What is the process of converting an image to Base64?

In JavaScript, the base64 technique converts an image to a base64 string. To transform the image, it does not send it to the server.

How much does generating a Base64 encoded picture from an image cost?

Using our online converter is completely free of charge! It's yours to do with as you like.

Is it possible to use Linux, Mac OS, or Android to convert an image?

You don't need to download any software to use the Base64 converter online.

Does the process of converting a picture to Base64 take long?

This converter is highly efficient. A base64 string may be generated from an image in a matter of seconds.

Why Is The Maximum File Size Of 1.00 Mb?

Multiple explanations exist for the 1 MB upload restriction per file.

  • Private servers with limited resources host this service, which is free to use. A larger server already handles multiple uploads and picture optimization.

  • We received a lot of support inquiries about why encoded images couldn't be viewed in the browsers of my customers. The image to base64 string size was too huge for the hardware or too large for the browsers to handle.

  • If you're only encoding icons, picture sprites, or other small files, 1 MB should do. Almost the majority of the uploads on this page are less than 100 kb in size.

Do the files get stored permanently?

No. Images should only be stored for a fraction of a second since we value your privacy. Here's a quick rundown of what happens to your photos:

  • The photograph is saved to a temporary folder after being submitted.

  • A base64 string is generated from the picture data.

  • Metadata such as file size and mimetype are read.

  • The picture has been removed.

In our Image to Base64 converter, we do not save the name of your files or any other information that belongs to your privacy. In order to present the results, metadata is merely retrieved.

Only non-personally identifiable data is collected and saved (for statistical purposes):

  • Size of file

  • Unknown IP address

Is The Image Not Available In IE 8?

Microsoft places a 32 KB restriction on the size of encoded strings, which photos supplied by users frequently violate. There's a 4 GB restriction in Internet Explorer 9 now. For IE 8 users, you need to pay attention to the size of base64 strings.