Image to Base64
Instant conversion • 100% private
Drop your image here
or click to browse — or paste from clipboard (Ctrl+V)
Convert Images to Base64 Data URIs
Transform any image into a Base64 data URI for inline embedding in HTML, CSS, JSON and APIs. Instant conversion, one-click copy, multi-format support. All in your browser, 100% private.
Fast & Flexible Base64 Conversion
Everything you need to convert images to data URIs.
Instant Conversion
Convert any image to a Base64 data URI in milliseconds. No waiting, no processing delays — just instant results.
One-Click Copy
Copy the Base64 string or full data URI to your clipboard with a single click. Ready to paste into HTML, CSS or JSON.
Download Output
Download the Base64 output as a .txt file for later use. Perfect for saving data URIs for projects.
Multi-Format Support
Supports PNG, JPG, WebP, GIF, BMP, SVG and AVIF. The output data URI preserves the original format.
100% Private
All conversion happens in your browser. Your images are never uploaded — safe for sensitive or confidential content.
Batch Convert
Convert multiple images at once. Each image gets its own Base64 output that you can copy or download individually.
Convert in 4 Easy Steps
From upload to data URI in milliseconds.
Upload Your Image
Drag & drop or browse to upload an image. You can also paste an image directly from your clipboard.
Auto-Convert
The tool automatically converts your image to a Base64 data URI the moment it is loaded. No buttons to click.
Copy or Download
Copy the Base64 string or full data URI to your clipboard, or download it as a .txt file for later use.
Use Anywhere
Paste the data URI into HTML img tags, CSS background-image, JSON files, API requests or any code that needs inline images.
Perfect for Every Project
From email templates to API payloads.
Inline HTML Images
Embed images directly in HTML without external files. Perfect for email templates, single-file demos and prototypes.
CSS Backgrounds
Use Base64 data URIs in CSS background-image properties. Eliminate HTTP requests for small icons and patterns.
API & JSON
Send images as Base64 strings in JSON API payloads. Common in REST APIs, mobile backends and serverless functions.
Email Templates
Embed images in HTML email templates where external image loading is blocked. Base64 ensures images display inline.
Single-File Apps
Bundle all images into a single HTML or JS file. Useful for offline apps, browser extensions and embedded systems.
Data URIs
Generate data URIs for SVGs, icons and small graphics. Reduce HTTP requests and simplify asset management.
Frequently Asked Questions
Everything you need to know about Image to Base64.
Is the Image to Base64 converter free to use?
Yes! It is completely free with no sign-up required. Convert unlimited images with no daily limits, and no hidden fees.
What is a Base64 data URI?
A Base64 data URI is a string that encodes binary image data as text, prefixed with a data URI scheme (e.g., data:image/png;base64,...). This allows images to be embedded directly in HTML, CSS, JSON or other text-based formats without a separate file.
What image formats are supported?
You can convert PNG, JPG, WebP, GIF, BMP, SVG and AVIF images. The output data URI preserves the original format's MIME type.
Are my images uploaded to a server?
No. All conversion happens entirely in your browser using the FileReader API. Your images never leave your device — zero uploads, zero server processing, zero data collection.
Is there a file size limit?
There is no hard file size limit, but very large images will produce very large Base64 strings (approximately 1.33x the original file size). Browsers may slow down with extremely large outputs.
Can I convert multiple images at once?
Yes! You can upload multiple images and each one will be converted to its own Base64 data URI. You can copy or download each one individually.
Ready to Convert Your Images?
Start converting right now. Completely free, no sign-up, no watermarks.