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.

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.

Forhåndsvisning af resultatet fra ”JFIF til ICO”

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.
Browsere viser ICO-filen som dit websteds fane- og bogmærkeikon, når du gemmer den som favicon.ico.

What to expect when converting JFIF to ICO

Ikoner er kvadratiske, så et ikke-kvadratisk billede centreres på et gennemsigtigt kvadrat. Størrelser, der er større end dit billede, oprettes ikke, så start med mindst 256 × 256 pixels.
Din originale JFIF-fil ændres ikke: du downloader en ny ICO-kopi.

JFIF vs ICO

Funktion	JFIF	ICO
Fulde navn	JPEG File Interchange Format	Windows-ikon
Oprindelse	Defined in 1992 as the standard JPEG file layout	Created by Microsoft for Windows icons
Komprimering	Med tab (det er en JPEG)	Lossless images at several sizes
Gennemsigtighed	Nej	Yes — smooth, partial transparency
Animation	Nej	Nej
Farve	16,7 millioner farver (8 bit pr. kanal)	Fuld farve med gennemsigtighed
Hvor den kan åbnes	Most image viewers, but many upload forms reject the .jfif extension	Browsers (as favicon.ico), Windows and icon editors
Bedst til	intet, som en JPG ikke kan — den indeholder de samme billeddata	website favicons and Windows app or shortcut icons
Største ulempe	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.
Hvad er en JFIF-fil?: 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.

Hvad du kan gøre med JFIF til ICO

Gennemgå de vigtigste funktioner, før du begynder.

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

Brug dette værktøj

Indstillingsreference

Tilgængelige kontroller til JFIF til ICO.

Indstillinger

Resultat formatRullemenu: Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.Indstillinger: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
KvalitetSkyderRækkevidde: 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.
Tabsfri tilstandTil/fra: For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
BaggrundsfyldFarvevælger: Til JPG, BMP og billede-til-PDF, som ikke kan gemme gennemsigtighed: farven, der udfylder gennemsigtige områder (hvid som standard).

Tilstand

Enkelt fil / batchRullemenu: Behandle én fil eller en batch med delte indstillinger. Batchresultater downloades som én ZIP.Indstillinger: Enkelt filFlere filer

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