Image to Base64 – Free Online Tool

Image to Base64 inlines a binary image as a Base64-encoded text string and matching data: URI. Best for small icons, logos, and SVG previews that you want embedded directly in CSS, HTML emails, or JSON payloads — avoiding an extra HTTP request at the cost of about 33% size overhead.

• Your data stays private — all processing happens locally in the browser
• No telemetry, no tracking pixels, no third-party scripts
• Open-and-go: bookmark the page once and never look for an alternative
• Supports PNG, JPG, WebP, GIF, and SVG with consistent quality across formats
• Your original file is never uploaded — sensitive screenshots stay on your device

1. Drop or pick an image file (PNG, JPG, GIF, WebP, SVG)
2. The Base64 string and full data URI are generated locally
3. Copy the Base64 alone, or the data: URI ready for CSS background-image / <img src>
4. Use for inlining small images into stylesheets, emails, or HTML attributes

• Inlining small icons/logos in CSS to avoid extra requests
• Embedding images in HTML emails that block external loads
• Pasting images into JSON payloads (debug logs, test fixtures)
• Data: URIs for one-off prototypes without an image server

Resulting Base64 is huge for a small file.

Base64 adds ~33% overhead. For files >50 KB, normal image hosting is usually a better choice than inlining.