🖼️ Image to Base64 Converter
Upload any image and get the base64 string with optional MIME prefix. Live preview & download
📁 Click to upload an image, or drag and drop
Supports: PNG, JPG, GIF, SVG, WebP
👁️ Image Preview
📋 Base64 Output
Embed This Tool
Want to embed this image to base64 converter on your website? Use this code:
📘 Base64 Usage Examples
🖼️ HTML Image
🎨 CSS Background
📄 Data URL in link
⚡ Favicon
📖 Base64 Tutorials
What is Base64 Encoding?
Learn why we encode binary data as text and how it's used on the web.
Read Tutorial →When to use inline images (data URLs)
Pros and cons of embedding images directly in HTML/CSS.
Read Tutorial →⚖️ Base64 Tool Comparison
| Feature | Our Tool | Tool A | Tool B |
|---|---|---|---|
| Free & unlimited | ✅ | ✅ | ❌ (limit) |
| Live image preview | ✅ | ✅ | ❌ |
| Data URL / raw base64 toggle | ✅ | ✅ | ✅ |
| Copy & download | ✅ | ✅ | ❌ |
| Drag & drop upload | ✅ | ✅ | ✅ |
| Client-side / private | ✅ | ❌ | ✅ |
❓ Frequently Asked Questions
Base64 is a way to encode binary data (like images) into ASCII text. It's often used to embed images directly in HTML or CSS as "data URLs".
Embedding images as base64 reduces HTTP requests, which can improve page load speed for small images. It's also useful for email signatures, self‑contained HTML documents, and situations where you can't host images separately.
A Data URL includes the MIME type prefix (e.g., data:image/png;base64,) and can be used directly in src attributes. Raw base64 is just the encoded string without the prefix.
Yes, base64 encoding increases the size by about 33% due to the way binary data is represented as text. It's best used for small images (under 10KB).
📝 Version History
Version 1.0.0 – Initial release
- 🚀 Upload images (PNG, JPG, GIF, SVG, WebP)
- 👁️ Live image preview
- 📋 Data URL / raw base64 toggle
- 📋 Copy base64 to clipboard
- 💾 Download as .txt file
- 📁 Drag & drop support
🧠 Why use Base64 for images?
Base64‑encoded images can be embedded directly in HTML, CSS, or JavaScript, eliminating extra HTTP requests. This can speed up page loading for small icons and sprites. However, the encoded string is larger, so it's best for images under 10KB.
📦 Self‑contained
Perfect for email signatures or single‑file demos.
⚡ Fewer requests
Reduces round trips for small assets.
📱 No external hosting
Works offline, no broken links.
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