
Convert JFIF to ICO — Favicons and Windows Icons
Convert JFIF to ICO online to make a favicon or Windows icon in several sizes. No software to install. Preview one free or batch-convert with Premium.
Drop your JFIF file or click to browse
Why convert JFIF to ICO?
- One ICO bundles the standard 16 to 256 px icon sizes (up to the size of your image), ready for a favicon.ico or a Windows shortcut.
- Browsers show the ICO as your site’s tab and bookmark icon when you save it as favicon.ico.
What to expect when converting JFIF to ICO
- Icons are square, so a non-square image is centred on a transparent square. Sizes larger than your image aren’t created, so start from at least 256 × 256 pixels.
- Your original JFIF file isn’t changed: you download a new ICO copy.
JFIF vs ICO
| Funktion | JFIF | ICO |
|---|---|---|
| Fullständigt namn | JPEG File Interchange Format | Windows Icon |
| Origin | Defined in 1992 as the standard JPEG file layout | Created by Microsoft for Windows icons |
| Komprimering | Lossy (it is a JPEG) | Lossless images at several sizes |
| Transparency | Nej | Yes — smooth, partial transparency |
| Animering | Nej | Nej |
| Färg | 16.7 million colours (8 bits per channel) | Full colour with transparency |
| Where it opens | Most image viewers, but many upload forms reject the .jfif extension | Browsers (as favicon.ico), Windows and icon editors |
| Bäst för | nothing a JPG can’t do — it holds the same image data | website favicons and Windows app or shortcut icons |
| Main drawback | upload forms and some apps reject the .jfif extension | icons are square and at most 256 × 256 pixels |
In short: choose JFIF for nothing a JPG can’t do — it holds the same image data; choose ICO for website favicons and Windows app or shortcut icons.
Frequently asked questions
- How do I convert JFIF to ICO?
- Upload your JFIF file above. It is converted to ICO automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.
- Does converting JFIF to ICO lose quality?
- Each icon size is scaled down from your image and stored without further compression, so small sizes stay crisp.
- JFIF or ICO: which should I use?
- Use JFIF for nothing a JPG can’t do — it holds the same image data. Use ICO for website favicons and Windows app or shortcut icons. Keep in mind the main drawback of ICO: icons are square and at most 256 × 256 pixels.
- What is a JFIF file?
- A .jfif file is a JPEG with an unusual extension; Windows and some browsers save web images this way. The picture is identical to a .jpg, but many sites and apps refuse the .jfif name.
- What sizes does the ICO file include?
- The standard icon sizes of 16, 32, 48, 64, 128 and 256 pixels, skipping any larger than your image. Browsers and Windows pick the best size automatically.
- Is the JFIF to ICO converter free?
- Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.
Vad du kan göra med JFIF to ICO
Granska de viktigaste funktionerna innan du börjar.
- Convert JFIF files to ICO online
- Bundle standard icon sizes from 16 to 256 px in one file
- Switch to any other output format in Settings
- Batch-convert many JFIF files into one ZIP
- Preview the result before you download
Inställningsreferens
5 inställningar
Tillgängliga kontroller för JFIF to ICO.
Inställningar
- UtdataformatRullgardinsmeny
- Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.Alternativ: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
- KvalitetReglageIntervall: 20–100 · Standard: 90
- For JPG, WebP, AVIF and image-to-PDF output: higher keeps more detail but makes a bigger file; 60–80 suits most photos. Documents (Publisher, XPS, EPS…) become PDFs with every page and sharp text, with no quality setting.
- Förlustfritt lägePå / Av
- For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
- BakgrundsfyllningFärgväljare
- For JPG, BMP and image-to-PDF output, which can’t store transparency: the colour that fills transparent areas (white by default).
Läge
- Enskild fil / BuntRullgardinsmeny
- Bearbeta en fil eller en batch med delade inställningar. Batch-resultat laddas ner som ett ZIP.Alternativ: Enskild filBunt
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