Image to Base64 — Encode & Decode Base64 Images Online
Free online image to Base64 converter to encode images into Base64 strings and decode Base64 strings back to images. Supports JPG, PNG, GIF, and WebP. Ideal for web developers embedding images directly in HTML, CSS, or JavaScript — 100% client-side.
Output Format
Click or drag & drop your image
JPG, PNG, WebP, GIF, SVG · Processed locally
Your image never leaves your device — 100% local processing.
How to Use Image to Base64
Choose Encode or Decode
Select Encode to convert an image to Base64, or Decode to convert Base64 back to an image.
Upload or Paste Input
Drag and drop an image to encode, or paste a Base64 string to decode.
Select Format Options
Choose the image format for the encoded output or download the decoded image.
Copy and Use
Copy the Base64 string to your clipboard and embed it in HTML, CSS, or JavaScript.
FAQ
Base64 is an encoding method that converts binary data (like images) into a text string of ASCII characters.
Base64 is useful for embedding small images directly in HTML, CSS, or JavaScript to reduce HTTP requests.
Yes. Base64 encoding increases the size by approximately 33% compared to the original binary file.
Yes. Switch to the Decode tab, paste the Base64 string, and click Decode to Image.
We support JPG, PNG, WebP, GIF, and SVG for encoding and decoding.
Yes. All processing happens locally in your browser — nothing is uploaded to any server.
Try an Example
HTML Image Embed
Encode a small icon as Base64 and embed it directly in HTML using a data URL.
Format: PNG · Size: ~33% overhead
A complete data URL string ready to paste into your HTML src attribute.
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