Base64 Image Encode/Decode
Transform images into Base64 Data URIs or decode them back. Ideal for embedding small icons and assets directly into code. All computations are performed locally for maximum privacy.
Drop your image here
PNG, JPG, WebP or SVG up to 10MB
Base64 encoding allows you to embed images directly into HTML or CSS without external file requests. This is perfect for small icons or preventing "flash of unstyled content".
About Base64 Image Encoder & Decoder
Base64 image encoding turns image files into a long text string (a Data URI). That string can be embedded in HTML, CSS, or JSON, so you can display images without a separate file request. Decoding does the reverse: paste a Base64 image string and recover or preview the image. Everything runs locally in your browser for privacy and speed.
Use cases: Embed small icons or thumbnails in HTML or CSS to reduce HTTP requests. Include images in JSON APIs or config (e.g., app icons or badges). Test Data URIs in development. Decode and preview Base64 images from APIs or documentation. Generate inline images for email templates or single-file demos.
How it works: For encoding, upload an image (or drag and drop); the tool converts it to a Base64 Data URI and optionally shows the string length and approximate size impact. For decoding, paste a Base64 or full Data URI string; the tool validates it and displays the image. Large images produce long strings—embedding huge files in code is usually not recommended; this tool is best for small assets.
Privacy and performance: All conversion is done in your browser. No images are uploaded to any server. Keep in mind that Base64 increases size by roughly 33%, so use it where the trade-off (fewer requests, single-file portability) is worth it.