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.

Qu'est-ce qu'un fichier JFIF ?

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.

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.
Les navigateurs affichent l’ICO comme icône d’onglet et de favori de votre site lorsque vous l’enregistrez sous le nom favicon.ico.

What to expect when converting JFIF to ICO

Les icônes sont carrées : une image non carrée est donc centrée sur un carré transparent. Les tailles supérieures à celle de votre image ne sont pas créées, partez donc d’au moins 256 × 256 pixels.
Votre fichier JFIF d’origine n’est pas modifié : vous téléchargez une nouvelle copie au format ICO.

JFIF ou ICO

Fonctionnalité	JFIF	ICO
Nom complet	JPEG File Interchange Format	Icône Windows
Origine	Defined in 1992 as the standard JPEG file layout	Created by Microsoft for Windows icons
Compression	Avec perte (c'est un JPEG)	Lossless images at several sizes
Transparence	Non	Yes — smooth, partial transparency
Animations	Non	Non
Couleur	16,7 millions de couleurs (8 bits par canal)	Couleurs complètes avec transparence
Où l'ouvrir	Most image viewers, but many upload forms reject the .jfif extension	Browsers (as favicon.ico), Windows and icon editors
Idéal pour	rien qu’un JPG ne sache faire — il contient les mêmes données d’image	website favicons and Windows app or shortcut icons
Principal inconvénient	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.
Qu'est-ce qu'un fichier JFIF ?: 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.

Ce que vous pouvez faire avec JFIF vers ICO

Passez en revue les principales fonctionnalités avant de commencer.

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

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Référence des paramètres

Contrôles disponibles pour JFIF vers ICO.

Paramètres

Format de sortieListe déroulante: Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.Possibilités: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
QualitéCurseurPlage: 20–100 · Par défaut: 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.
Mode sans perteActivé / Désactivé: For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
Remplissage d'arrière-planSélecteur de couleur: Pour les sorties JPG, BMP et image vers PDF, qui ne gèrent pas la transparence : la couleur qui remplit les zones transparentes (blanc par défaut).

Mode

Fichier unique / LotListe déroulante: Traitez un fichier ou un lot avec des paramètres partagés. Les résultats des lots sont téléchargés sous forme d'un seul ZIP.Possibilités: Fichier uniqueLot

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Utilisation gratuite · Aucune inscription requise · Sans filigraneLes téléchargements sont cryptés pendant le transitSupprimé en vertu de notre politique de rétention

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