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Base64 to Image Decoder Free Online

Paste a Base64 string to decode it into a downloadable image. PNG, JPG, WebP output. Browser-based, instant, no signup.

Decoding runs locally in your browser. No server upload, no signup, no watermark.

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What is Base64 Image Encoding?

Base64 encoding represents binary image data as ASCII text. It is commonly used to embed images directly in HTML, CSS, JSON, or email messages without requiring separate file references. This tool reverses the process — it decodes the Base64 text back into a viewable image file.

When to Use

Decode Base64 strings from API responses, data URIs, email attachments, or embedded resources. The tool auto-detects the image format (JPG, PNG, GIF, WebP) from the encoded data.

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