JPG to ICO | Fast & Free & Secure
Convert JPG 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 JPG?
JPG (or JPEG) is a widely used raster image format optimized for photographs and realistic scenes. It uses lossy DCT-based compression with an adjustable quality setting and typically chroma subsampling (e.g., 4:2:0) to shrink file size by discarding imperceptible color detail. Standard JPGs are 8-bit per channel, usually in sRGB, and can be baseline or progressive for faster perceived loading on the web. The format supports EXIF metadata but not true transparency or layers, so it isn’t ideal for logos, text, or sharp line art. Use PNG or SVG for graphics, and WebP/AVIF for smaller, modern photos. To preserve quality, export at a higher quality value (e.g., 85–92) and avoid repeated re-saves, which accumulate compression artifacts.
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.
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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.