Base64 Converter
Base64 Encoder/Decoder & Image Converter — Clean Data Encoding
The Base64 Converter is a versatile utility for encoding and decoding files and text into the Base64 format. It is an essential tool for web developers who need to embed small images directly into HTML/CSS (data URIs), transmit binary data over text-based protocols, or obfuscate sensitive strings for basic data URI handling.
Why Use This Base64 Tool?
- All-in-One Utility: Seamlessly switch between text encoding and image-to-base64 conversion.
- Developer Productivity: Generate complete CSS data URI snippets or HTML img tags instantly.
- Visual Validation: Preview images as they are converted to ensure data integrity.
- Privacy Guaranteed: All conversions happen locally on your machine—no data is ever uploaded to a server.
Key Features
- Drag-and-Drop Image Upload: Convert PNG, JPEG, and SVG files by simply dropping them in.
- Text & Binary Support: Encode plain text or decode Base64 strings back to their original form.
- Copy-to-Clipboard: One-click copying for generated code blocks.
- Data URI Formatting: Automatically wraps image output in the correct MIME type (e.g.,
data:image/png;base64,...).
How it Works
For text conversion, the tool uses the standard btoa() and atob() JavaScript functions, with UTF-8 support achieved through text encoding/decoding wrappers. For images, a FileReader object is used to read the local file as a DataURL. This process reads the raw binary data of the file and transforms it into a character sequence that represents the file’s content in a format that can be safely embedded in web documents.
Try the Base64 Converter
Upload an image or type your text to see the Base64 representation in real-time. Use the “Copy” button to instantly grab the code for your project.