Base64 Image Encoder/Decoder
Encode images to Base64 or decode Base64 strings to images. Toggle between modes.
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Frequently Asked Questions
What is Base64 encoding for images?
Base64 encoding for images is a method to convert binary image data (pixels, format information) into a text-based string. This allows images to be easily embedded in text-based formats like HTML, CSS, or JSON.
Why use Base64 encoding for images?
Base64 encoding is used to embed images directly into code, reducing HTTP requests for small images, preventing issues with image paths, and simplifying data transfer in certain protocols where only text is allowed.
Does Base64 encoding compress images?
No, Base64 encoding does not compress images. In fact, it typically increases the file size by about 33% because it represents 6 bits of binary data with 8 bits (one ASCII character).
Is Base64 encoding secure for images?
Base64 is an encoding scheme, not an encryption method. It's easily reversible. Do not use it for protecting sensitive image data; it only obscures the data, it doesn't secure it.
When should I use Base64 encoded images?
Use Base64 for very small images like icons or tiny graphics in HTML/CSS to reduce HTTP requests. It's also useful when images need to be transmitted as part of a text-based payload (e.g., JSON).
What are the disadvantages of Base64 images?
The main disadvantages are increased file size (approx. 33% larger), potentially slower page loading for larger images, and a lack of browser caching for embedded images compared to externally linked ones.
How do I convert an image to Base64?
You can convert an image to Base64 using online tools (like this one!), programming libraries in languages like Python or JavaScript, or command-line utilities. These tools read the image's binary data and transform it into a Base64 string.