Generate professional website favicons with customizable dimensions directly from your JPG images in seconds.
JPG is the most common file extension for images compressed with the JPEG standard, published in 1992. It applies lossy compression based on the discrete cosine transform, splitting images into small blocks and discarding visually insignificant detail to shrink file size. The compression level is adjustable: higher quality keeps more detail at a larger size, while lower quality trades visible artifacts for a much smaller file. JPG supports 24-bit true color and embeds Exif metadata such as camera model and capture date. Its biggest strength is universal compatibility — it is the native output of virtually every camera and phone, and opens in every browser, viewer, and operating system without exception.
ICO is the native icon file format of Microsoft Windows, dating back to Windows 1.0 in 1985. What makes ICO distinctive is that a single file is actually a small container holding several versions of the same image at different resolutions and color depths — commonly 16×16, 32×32, 48×48, and 256×256 — so Windows, and browsers for favicons, can automatically pick the size that best fits the context. Because of this multi-size structure, converting a regular JPG, PNG, WEBP, or SVG image into ICO isn't a simple format swap: the source image needs to be resized and packed into that same multi-resolution container, which is exactly what a dedicated ICO converter automates.
Websites require precise favicon dimensions depending on where they are displayed—from browser tabs (16x16 or 32x32) to app shortcuts and high-density screens. Our tool runs 100% in your browser, ensuring total privacy while safeguarding image transparency and quality.
The standard **32x32 pixels** size works universally across almost all modern web browsers for standard tabs.
If your source image is rectangular (e.g., a wide logo), this option adds transparent padding around it to prevent distortion inside the square ICO file.
No, all conversion logic is executed locally within your browser using JavaScript for complete privacy.
Transform formats with transparency.
Adjust dimensions for optimal display.
Reduce graphic file sizes securely.