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Image to Base64
Convert images to Base64 strings for use in API calls (GPT-4 Vision, Claude 3).
100% BROWSER-BASED
Click to upload Image
JPG, PNG, WEBP
/ HOW TO USE
How to Use Image to Base64
This tool runs entirely in your browser. Upload your file, make your changes, and download the result. Your files never leave your device — everything is processed locally for maximum privacy.
/ FEATURES
Key Features
100% Client-Side Processing
No File Size Limits
Completely Free
Privacy Focused
Instant Results
Works Offline
/ YOUR PRIVACY
Your Privacy is Guaranteed
Unlike other tools that upload your files to servers, ToolBox processes everything locally in your browser.
No server uploads
Instant processing
Works offline