🔠Image to Base64
Convert images to Base64 data URI strings.
🆓 Free🔒 Secure⚡ Instant📱 Mobile-friendly🚫 No signup
Convert images to Base64 data URI strings online for free. Useful for embedding images in HTML/CSS.
Drop files here or click to upload
Max 20 files · 50 MB each
How to Use Image to Base64 — Step by Step
- 1Upload the image you want to encode (JPG, PNG, WebP, etc.)
- 2Click 'Convert to Base64' — the image is encoded instantly
- 3Copy the Base64 string to use in HTML, CSS, or JSON
- 4Use the data URI format directly in an img src or CSS background-image
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Frequently Asked Questions
Is this tool completely free?
Yes. All ToolNest tools are 100% free with no signup required, no account, and no watermarks added to output files.
Are my uploaded files secure and private?
All uploads use HTTPS encryption during transfer. Files are processed on secure isolated servers and automatically deleted within 2 hours of upload.
Does this tool work on mobile phones?
Yes. ToolNest works on any modern browser on iPhone, Android, tablet, or desktop — no app download or plugin needed.
Do I need to create an account?
No. Just open the tool, upload your file, and download the result. No email, no signup, no password.