Encode any image to a Base64 string or data URI for embedding in HTML, CSS, or JSON — or decode a Base64 string back to a viewable image. All processing stays in your browser with no upload required.
How to Use Image to Base64
- 1Upload your image file — the Base64 string appears instantly
- 2Choose output format: raw Base64 or complete data URI
- 3Click "Copy" to copy the string to clipboard
- 4Or paste a Base64 string to decode it back to a viewable image
- 5For text and file Base64 encoding, use the Base64 Encoder
Features
- Encode any image to Base64 instantly — supports JPEG, PNG, WebP, GIF, SVG
- Output as raw Base64 or complete data URI with one-click copy
- Decode Base64 strings back to viewable images
- All processing stays in your browser — files are never uploaded
Frequently Asked Questions
What is Base64 image encoding used for?
Base64 lets you embed images directly in HTML, CSS, or JSON without a separate file. Useful for email templates, inline SVGs, and API responses that include images.
Does Base64 encoding increase file size?
Yes. Base64 encoding increases the file size by approximately 33%. Inline images in HTML/CSS should be small (under 10KB) to avoid page bloat.
What is a data URL?
A data URL is a URI scheme that embeds file data inline: data:image/png;base64,... It allows images to be included directly in HTML or CSS without a separate request.