Free ICO Generator

Convert images to favicon files instantly in your browser

🔒 100% Private
🚫 No Upload Required
⚡ Instant Conversion

Your images never leave your device. All processing happens locally in your browser using client-side JavaScript. No servers, no data collection, no privacy concerns - just pure, instant favicon generation.

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Click to upload or drag & drop

Supports PNG, JPG, GIF, SVG and more

Preview & Settings

Original image

Why Choose Our ICO Generator?

🔐 Complete Privacy

Unlike other online converters, your images are processed entirely in your browser. No files are uploaded to any server, ensuring your logos and designs remain confidential.

⚡ Lightning Fast

No upload or download delays. Conversion happens instantly using your device's processing power. Generate ICO files in seconds, not minutes.

💾 Works Offline

Once loaded, this tool can work without an internet connection. Perfect for sensitive projects or when you're working remotely.

🎯 Multi-Resolution

Create ICO files with multiple sizes in one file. Windows and browsers automatically select the best size for each context.

🆓 Completely Free

No sign-ups, no limits, no hidden costs. This tool is free forever because it runs on your device, not expensive servers.

🌐 Browser-Based

Works on any modern browser - Chrome, Firefox, Safari, Edge. No software installation required. Compatible with Windows, Mac, and Linux.

Frequently Asked Questions

Is this really private? How can I be sure my images aren't uploaded?
Yes, it's 100% private. This tool uses client-side JavaScript, meaning all code runs in your browser. You can verify this by opening your browser's network inspector - you'll see no image uploads. You can even disconnect from the internet after loading the page and it will still work perfectly.
What is an ICO file and why do I need one?
ICO files are multi-resolution image files primarily used for website favicons (the small icon in browser tabs) and Windows application icons. They contain multiple sizes of the same image, allowing systems to display the optimal size for different contexts.
Which image formats can I convert?
You can convert any common image format including PNG, JPG/JPEG, GIF, SVG, WebP, and BMP. For best results, start with a square image at least 256×256 pixels.
Why is client-side processing better than server-side?
Client-side processing offers complete privacy (your files never leave your device), instant conversion (no upload/download time), works offline once loaded, and has no file size limits imposed by server constraints. It's perfect for confidential logos or when working with sensitive designs.