The Dev Tools - Free Online Developer Utilities

upload_file

Drag & drop an image here

or click to select a file

Preview

No image to preview

Base64 String

About Image to Base64 Converter

This tool allows you to convert images to base64 encoded strings and vice versa. Base64 encoding is commonly used to embed images directly in HTML, CSS, or JavaScript code, or to transmit binary image data as text.

Features

Image to Base64: Upload or drag & drop any image to convert it to a base64 string
Base64 to Image: Paste a base64 string to preview the image
Instant Preview: See the converted image in real-time
Copy to Clipboard: Easily copy the base64 string
Download: Save the converted image to your device
Multiple Formats: Supports PNG, JPG, JPEG, GIF, and WebP

How to Use

Image to Base64:
- Drag & drop an image into the upload area, or click to select a file
- The base64 string will be generated automatically
- Click the copy button to copy the string to your clipboard
Base64 to Image:
- Paste a base64 image string into the text area
- The image preview will update automatically
- Click the download button to save the image

Common Use Cases

Web Development: Embed small images directly in HTML/CSS
Email Templates: Include images without external URLs
Data URIs: Convert images for use in data URIs
API Testing: Convert images for API requests/responses
Offline Applications: Store images as text data

Best Practices

Use base64 encoding for small images only (under 1MB)
Consider performance impact of base64 encoded images
Remember base64 strings are ~33% larger than the original file
Use appropriate image formats for your use case
Test encoded images in your target environment