Image ↔ Base64 Converter
ImageEncode images to Base64 Data URIs for embedding in HTML, CSS, Markdown, or JSON. Decode Base64 strings back into images.
Click to upload or drag and drop
Supports PNG, JPG, WEBP, GIF, SVG (Max 15 MB each)
How to use the Image to Base64 Converter
Follow these simple steps to process your files locally in seconds.
Upload one or more images using the dropzone — supports PNG, JPEG, WEBP, GIF, and SVG up to 15 MB each.
Each image is instantly converted to a Base64 Data URI entirely within your browser.
Use the format dropdown on each image to select your desired output: Data URI, Raw Base64, HTML <img> tag, CSS background-image, Markdown, or JSON.
Click Copy to copy the selected format to your clipboard, or Save .txt to download it as a text file.
Use the Export All as JSON button to batch-download all base64 strings in a single structured JSON file.
Switch to the Base64 → Image tab to paste any base64 string and decode it back into a previewable, downloadable image.
All calculations run exclusively inside your browser. No files are ever sent to our servers.
Your data remains entirely yours. Ideal for processing sensitive business or personal files safely.
No account registration, no file size limitations, and no watermarks added to final results.
Frequently Asked Questions
Got questions about using the Image to Base64 Converter? Find answers here.