![]() ![]() You can embed a Base64 encoded image as an inlined image in HTML by placing a Base64 encoded image in the src attribute of an img tag. ![]() How to embed a Base64 encoded image in HTML ![]() So in order to use Base64 encoded images wisely, it's recommended to use them for tiny images only, such as web icons unless you have a good reason not to. Nowadays using Base64 encoded images seems to have a disadvantage over using binary ones considering the larger file sizes, CPU overhead, and the arrival of multiplexing in HTTP/2. When to actually use Base64 encoded images Therefore, using Base64 encoded images instead of binary ones to improve the performance of your website is not the case anymore if you use a web server that supports HTTP/2. With the arrival of HTTP/2, the need of reducing HTTP requests is a lot less because multiplexing in HTTP/2 can handle multiple HTTP requests asynchronously in one single TCP connection. How multiplexing in HTTP/2 affects the benefit of using Base64 encoded images However, the size of a Base64 encoded image is approximately 33% larger than that of the original, so it may not be practical to convert large images to Base64 encoded ones to use in production.Īdditionally, when parsing Base64 encoded images to the original ones in binary, it adds CPU overhead to the process which is an unnecessary extra task. In web development, it's common to convert images to Base64 to gain a benefit from reducing HTTP requests. What are the cons of using Base64 encoded images? The advantage of using Base64 encoded images is to reduce the number of HTTP requests to the server rather than making more requests specifically for the images themselves. You can store Base64 encoded images in database as strings or embed them directly in your code where binary data is not necessary for your use case. What is the purpose of using Base64 encoded images instead of binary ones?īase64 encoded images are simply in a string format, so they can be transferred to any medium that doesn't support binary data. However, there are pros and cons of using Base64 encoded images, so make sure you're aware of them before deciding to use Base64 encoded images on your website especially in production. Base64 encoded images are commonly used in web development as inlined images embedded in HTML, CSS, and JavaScript files. Base64 uses 64 different ASCII characters including uppercase letters A-Z, lowercase letters a-z, numeric characters 0-9, and the special symbols + and / to represent binary data in a string format.Ī Base64 encoded image is the result of converting a binary image to a Base64 string. And once the process is finished, you can either right click on the image or simply use the download button to save it to your device.īase64 is a binary-to-text encoding representing binary data in an ASCII string format. The output image will show up instantly.įor a large image, this process may take a moment. ![]() You will have to copy the Base64 output manually.īase64 Image Decoder - Converts a Base64 string to an image by pasting a Base64 string in the input field. Please note that if the image file is too large, the copy button will fallback to a window prompt with the Base64 output. When the process is done, the input image and Base64 output will be displayed accordingly. Therefore, you are not uploading any image file or sending any Base64 string to the internet.īase64 Image Encoder - Converts an image to Base64 by either browsing an image file locally or fetching an image from a URL. You can either browse an image file locally from your device or fetch an image file from a URL.īoth modes process on the browser. This tool is split into two modes: Base64 Image Encoder and Base64 Image Decoder. Base64 Image Encoder / Decoder is a free online developer tool to encode an image to Base64 or decode Base64 to an image on your browser without uploading it. ![]()
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