---
title: "JPG to ICO Converter — Favicon Generator | Compress Pro"
description: "Convert JPG to a multi-size ICO favicon (16–256 px) right in your browser. Non-square photos are centered and nothing gets uploaded. Free and unlimited."
canonical: https://compress-pro.com/jpg-to-ico
---

# Convert JPG to ICO.

> Turn a JPG logo into a multi-size favicon ICO — locally.

Turn a JPG logo or photo into a classic favicon.ico with 16–256 px versions embedded — **generated entirely in your browser, so the file never leaves your device**. Non-square images are centered on a transparent square rather than stretched.

**No uploads · No ads · Free & open source.**

## How it works

1. Drop files anywhere on the page, click to browse, or paste with Ctrl/⌘ + V.
2. Pick a quality or preset — or set an exact target size and let the tool find it.
3. Compress, compare before/after, and download — individually or as a ZIP.

## From photo to favicon

Favicons live at 16–48 px, so detail disappears fast — bold shapes and strong contrast survive, fine text does not. Crop tight around the mark before converting, and check the 16 px look in a browser tab. If your logo exists as a transparent PNG or an SVG, [PNG to ICO](https://compress-pro.com/png-to-ico) and [SVG to ICO](https://compress-pro.com/svg-to-ico) keep the cut-out edges.

## Shipping the favicon

Name the file favicon.ico and put it at your site root — browsers request that exact path on their own, no markup needed. If the same JPG also appears on the page, [Compress JPG](https://compress-pro.com/compress-jpg) shrinks it for serving.

## Frequently asked questions

### Which sizes end up in the ICO?

256, 128, 48, 32 and 16 px — sizes larger than your source are skipped. One file covers browser tabs, bookmarks, desktop shortcuts and Windows Explorer views.

### My JPG isn’t square — what happens?

It is centered on a transparent square canvas rather than stretched, and every icon size is scaled from that square. For best results, crop the image to a square first.

### Wouldn’t a PNG be a better source?

If you have one, yes — PNG carries transparency, so cut-out logos stay see-through. From a JPG the icon is a solid rectangle, which is fine for photos and boxed logos.

### Is it private?

Yes. The conversion happens entirely on your device — the image is read, re-encoded and saved without ever touching a network. There is no server-side queue, no temporary copy in some bucket, nothing to expire or leak. Want proof? Run one file through, switch your connection off, and run another — it still works.

## Related tools

- [Convert PNG to ICO](https://compress-pro.com/png-to-ico)
- [Convert SVG to ICO](https://compress-pro.com/svg-to-ico)
- [Compress JPG images](https://compress-pro.com/compress-jpg)

---

Part of [Compress Pro](https://compress-pro.com/) — every tool page has a markdown twin at `<page url>.md`. Full tool index: [llms.txt](https://compress-pro.com/llms.txt)