Free Image to Base64 Converter Online
Encode any image (JPG, PNG, WebP, GIF) to a Base64 string or data URI. Instantly copy for use in HTML <img> tags, CSS background-image, or JSON payloads.
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JPG, PNG, WebP, GIF, SVG, BMP
About Image to Base64
Base64 encoding converts binary image data into a text string that can be embedded directly in HTML, CSS, or JSON without a separate file reference. This is useful for embedding small icons in stylesheets, embedding images in emails, or sending images in API payloads.
Note: Base64 encoded strings are ~33% larger than the original binary file. For large images, always use a separate file reference instead of Base64 embedding.
When to Use Base64 Images
Small Icons & Logos
Embed tiny icons directly in CSS to eliminate HTTP requests.
Email Templates
Embed images in HTML emails that are blocked by some clients.
API Payloads
Send images as JSON strings in REST API requests/responses.
Single-file Documents
Self-contained HTML documents with all assets inline.