Base64 Image Encoder / Decoder
Convert images to Base64 data URIs or decode Base64strings back to viewable images. Upload a file or paste encoded text directly. Everything runs in your browserânothing uploads to servers. Useful for embedding images in CSS, HTML emails, or APIs without hosting separate files.
Base64 Image Encoder / Decoder
Upload an image to get its Base64 data URI, or paste a Base64 string to preview the image.
How to use it
- Choose Encode to upload an image file, or Decode to paste Base64 text
- View the result instantly: data URI for images, or rendered preview for Base64
- Click Copy to grab the result for use in code or documents
Pro tips
- Base64 data URIs work inline in CSS background-image and HTML img src attributes
- Encoding adds ~33% size overhead, so use sparingly for large images
- Paste incomplete Base64? The decoder shows errors so you can fix the string
FAQ
Is my image sent to a server?
No. All encoding and decoding happens in your browser. Nothing leaves your device.
What image formats work?
PNG, JPG, GIF, WebP, SVG, and most others. Output is always valid Base64.
Can I decode any Base64 string?
Only strings that represent image data. Paste carefullyâerrors show if the data is corrupted or incomplete.
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