What is a Base64 Data URI and why use it?

A Data URI allows you to embed image data directly into HTML, CSS, or JSON documents as text strings, eliminating extra HTTP roundtrips and optimizing initial rendering speed for icons and logos.

Which image formats are supported?

All modern image formats are supported: PNG, JPG/JPEG, SVG vector, WebP, GIF, ICO, and AVIF.

Are my images uploaded to any server?

No! All encoding and decoding operations run 100% client-side inside your browser. No files or strings are transmitted.

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Premium

Image to Base64 & Data-URI Suite

Free online image to Base64 converter: convert PNG, JPG, SVG, WebP to Base64 Data-URI, HTML img tags, CSS background, or decode Base64 strings to images.

Image

Image to Base64 & Data-URI Suite

Free online tool to convert images to Base64 Data-URIs or decode Base64 strings back to image files.

⚡ 100% Client-Side Engine

Drag & drop image here or browse

PNG, JPG, SVG, WebP, GIF, ICO, AVIF (100% lokal im Browser)

How it works

Simply upload your file using the dropzone above. Our cloud-based processing engine will handle the heavy lifting and provide you with a high-quality result in seconds.

Safe & Secure

Your privacy is our priority. Files are processed over encrypted connections and automatically deleted from our servers after 2 hours.

Step-by-step

How Image to Base64 & Data-URI Suite Works

Free online image to Base64 converter: convert PNG, JPG, SVG, WebP to Base64 Data-URI, HTML img tags, CSS background, or decode Base64 strings to images.

1. Select Mode & Input

Choose "Image to Base64" to encode any image file or "Base64 to Image" to decode a Base64 string / Data-URI.

2. Pick Output Format

Choose from full Data-URI, HTML <img> tag, CSS background-image snippet, or raw Base64 string.

3. Copy Snippet or Download Image

Copy the ready-to-use code with one click or download the restored image file.

Key Benefits & Data Privacy

Dual mode: Image to Base64 encoder and Base64 to Image decoder

4 developer formats: Data-URI, HTML <img> tag, CSS background, and raw Base64

Support for all formats: PNG, JPG, SVG, WebP, GIF, ICO & AVIF

Live rendering preview, dimension detection, and file size analysis

100% Client-Side & Private: Zero server uploads

FAQ

Frequently Asked Questions

Topic Cluster

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