Convert to ICO | Fast & Free & Secure
Convert to ICO online in seconds. No signup. Secure processing; files auto-delete in ~2h. Works on mobile & desktop.
Smart Auto-Detection – ConvertSea
No need to select your file type — we've already detected it.
Just upload your file and choose the format you want to convert it to. Our system automatically recognizes the input format, so you can focus on getting the output you need.
What is ICO?
ICO is the Windows icon format: a small container that bundles multiple bitmap images at different sizes and color depths into a single .ico file. Typical entries include 16×16, 32×32, 48×48, and 256×256 pixels, with 24-bit or 32-bit color and alpha transparency. Modern ICO images may be stored as PNG (compressed) or legacy BMP (uncompressed), allowing crisp edges and smooth scaling across displays. ICO files are used for application and file icons in Windows and as classic website “favicon.ico,” though browsers also accept PNG/SVG today. You can create or convert ICO with tools like IcoFX, GIMP, Photoshop (plugins), ImageMagick, and many online converters. Because ICO is a simple container, it’s broadly supported and easy to generate from SVG or high-resolution PNG sources.
Upload Your File
Upload your file (drag & drop or click). Input type is auto-detected—no need to choose it.
Pick Format & Options
Pick the output format and (if available) adjust options like OCR, quality, bitrate, or resolution.
Convert & Download
Convert & download your file. Rate us.
Convert Your Files Instantly – Fast, Secure & Free
Welcome to ConvertSea, the ultimate online tool to convert your files with speed, accuracy, and zero hassle. Whether you're changing image formats, converting videos, editing documents, or extracting audio, our platform delivers instant, high-quality results across hundreds of file types.
No downloads, no registration, and no watermarks — just upload your file, choose the format you need, and download your converted file in seconds.
From PDF to Word, MP3 to WAV, JPG to PNG, or MP4 to MOV, ConvertSea ensures that your content stays clean, secure, and exactly how you want it.