Image to Base64 Converter (Free, PNG/JPG)
Convert images to Base64 encoded strings for embedding.
Free tier: 3 / 3 conversions remaining.
Note: Base64 encoding increases file size by ~33%. Best for small images or when you need to embed images directly in HTML/CSS.
Why Convert Images to Base64?
Base64 encoding converts images (PNG, JPG, SVG) into text strings (data:image/png;base64,...) that can be embedded directly in HTML, CSS, or JSON. This eliminates external file requests, speeds up page loads by reducing HTTP requests, and enables inline images in emails, PDFs, or offline applications.
Common Use Cases
- Email templates: Embed images in HTML emails without external hosting
- CSS sprites: Inline small icons or logos directly in stylesheets for faster loading
- Offline apps: Embed images in PWAs or Electron apps without external dependencies
- JSON APIs: Include thumbnail images in API responses as Base64 strings
- Data URIs: Create self-contained HTML files with embedded images for sharing
- PDF generation: Embed images in PDF generation libraries (jsPDF, pdfmake)
Why This Tool?
- Drag & drop: Upload images by dragging into browser—no complicated forms
- Multiple formats: Supports PNG, JPG, GIF, SVG, and other image formats
- 100% client-side: Images never leave your browser—complete privacy
- Instant conversion: See Base64 output immediately after upload
- Free forever: Unlimited image conversions with no file size limits on free tier
Pro tip: Base64 increases file size by ~33%. Only use for small images (<10KB). For larger images, use CDN hosting and our URL Encoder for proper URLs.