Image Base64 Converter
Convert images to Base64 strings or decode Base64 data back to preview and download images. Supports multiple formats.
Image Base64 Converter
Convert images to Base64 strings, or decode Base64 strings back to preview and download images.
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Max. 5.0 MB
Supported formats: PNG, JPG, JPEG, WEBP, GIF, SVG, BMP. Max file size: 5MB.
About Image Base64 Conversion
Base64 encoding converts image binary data into an ASCII string format. This string can be embedded directly in HTML, CSS, or JSON payloads.
When to use Base64
- Small icons, SVGs, or graphics to minimize HTTP requests.
- Email templates where external images might be blocked.
- Storing dynamic image payloads in JSON/XML datasets.
- Working offline or within standalone web environments.
Best Practices
- Avoid encoding large images (e.g. >1MB) as Base64 because it increases the payload size by approximately 33%.
- For performance, rely on browser caching for static files instead of loading heavy Data URIs in stylesheets.