About Image Converter

Image Converter was built out of a simple frustration: why do online tools force you to upload your private photos to unknown servers? Every time you use a cloud-based image converter, your file travels across the internet, gets stored temporarily on someone else's machine, and is processed by code you can't inspect.

We built a better way. By leveraging the raw power of the HTML5 Canvas API and modern browser technology, Image Converter performs all conversions entirely inside your own browser. Your photos never leave your device. Not even for a millisecond.

What We Believe

Privacy is a right, not a premium feature. We built this tool to be 100% free, with no paywalls, no file size limits, no watermarks, and no account required. Convert as many images as you need — your data stays yours.

How It Works

When you drop an image into our converter, here's what actually happens:

• Your file is read locally by your browser's File API
• It's drawn onto an invisible HTML5 Canvas element
• The Canvas serializes it to your chosen format using canvas.toBlob()
• The result is offered back to you as an instant download

No network request is ever made with your image data. The entire pipeline runs on your device's own graphics hardware — which is why it's also much faster than uploading to a server and waiting.

Supported Formats

We support conversion between JPG, PNG, WebP, and HEIC — covering the most common formats used by phones, cameras, and web browsers today. HEIC files (the default format from iPhone cameras) are decoded using the open-source heic2any library, running entirely locally.

Open & Transparent

This tool is built with Vanilla HTML, CSS, and JavaScript — no frameworks, no black boxes. It works offline after your first visit thanks to a Service Worker that caches the app locally. It's designed to be fast, lightweight, and inspectable.