🖼️
Base64 to Image
Decode Base64 strings back into viewable and downloadable image files instantly.
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📋 How to Use
- Paste your Base64 string (raw or data URI format) into the input field.
- The tool automatically detects the image type from the data URI prefix.
- Click Decode to convert the string to an image.
- Preview the decoded image in the browser.
- Click Download Image to save the file to your device.
About This Tool
Base64 to Image Decoder — Convert Encoded Strings Back to Images
When working with web applications, APIs, or email templates, you will frequently encounter Base64-encoded image strings. Our Base64 to Image decoder converts these text strings back into viewable, downloadable image files in just one click.
When Do You Need to Decode Base64 Images?
- Debugging web applications: Inspect Base64-encoded images from network responses, localStorage, or cookies by decoding them visually.
- API response inspection: REST and GraphQL APIs often return images as Base64 strings in JSON. Decode them to verify the correct image is being returned.
- Email template debugging: HTML email sources frequently contain Base64-embedded images. Decode them to view the actual image content.
- Data recovery: Extract images embedded in HTML source files, CSS stylesheets, or JavaScript bundles.
- Documentation: Copy Base64 image strings from technical documentation and decode them to see what they represent.
Supported Input Formats
The decoder accepts:
- Raw Base64 strings: The pure encoded text without any prefix.
- Data URIs: Full
data:image/[type];base64,[string]format as used in HTML and CSS. - Padded and unpadded: Handles both standard Base64 (with
=padding) and URL-safe Base64 variants.
Output Options
After decoding, you can:
- Preview the image directly in the browser before downloading.
- Download as original format: The image is saved in its original format (JPG, PNG, WebP, GIF, etc.) as detected from the data URI type.
- Download as a specific format: Convert the decoded image to a different format on download.
Security and Privacy
All Base64 decoding happens locally in your browser — the encoded string is never sent to our servers. This ensures complete privacy when decoding sensitive or confidential image data.
Decode your Base64 image strings now — free, instant, and private.
❓ Frequently Asked Questions
The decoder accepts raw Base64 strings and full data URIs (data:image/png;base64,...). Both standard and URL-safe Base64 variants are supported.
The MIME type in the data URI prefix (e.g., image/png, image/jpeg) tells the decoder what format to use. For raw Base64 without a prefix, the tool auto-detects the format from the data.
No. Base64 decoding is performed entirely in your browser. Your encoded data never leaves your device.
The tool handles Base64 strings representing images up to approximately 5 MB (about 6.7 million Base64 characters).
Yes. Animated GIFs encoded as Base64 are decoded and downloaded with their animation intact.
Common causes include incomplete strings (missing padding characters =), non-image Base64 data, or corrupted strings. Ensure you have copied the complete string without extra spaces or line breaks.
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