How do I convert BMP to AVIF?

Upload your BMP file above. It is converted to AVIF 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 BMP to AVIF lose quality?

AVIF is lossy by default, so some fine detail is discarded to make the file smaller. Raise the quality or switch on lossless in Settings for a closer copy.

BMP or AVIF: which should I use?

Use BMP for older Windows programs, embedded devices and tools that need raw pixels. Use AVIF for the smallest high-quality images for websites and apps. Keep in mind the main drawback of AVIF: it is slow to create and many editing apps and older devices can't open it.

Qu'est-ce qu'un fichier BMP ?

BMP stocke les pixels sans aucune compression. Les fichiers sont volumineux, mais les logiciels très anciens ou simples qui ne lisent pas les formats modernes savent généralement lire un BMP.

Is the BMP to AVIF 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 BMP to AVIF — Smallest High-Quality Images

Convert BMP to AVIF online for very small, high-quality web images. No software to install. Preview one free or batch-convert with Premium.

Drop your BMP file or click to browse

Why convert BMP to AVIF?

AVIF files are usually smaller than BMP for the same picture, so pages load faster and uploads finish sooner.
AVIF is made for the smallest high-quality images for websites and apps.

What to expect when converting BMP to AVIF

AVIF uses lossy compression by default; raise the quality or switch on lossless in Settings for a closer copy.
Votre fichier BMP d’origine n’est pas modifié : vous téléchargez une nouvelle copie au format AVIF.

BMP ou AVIF

Fonctionnalité	BMP	AVIF
Nom complet	Windows Bitmap	AV1 Image File Format
Origine	Created by Microsoft for Windows	Released by the Alliance for Open Media in 2019
Compression	Non compressé	Avec ou sans perte
Transparence	No (in the 24-bit BMPs most apps read)	Yes — smooth, partial transparency
Animations	Non	Oui
Couleur	16,7 millions de couleurs (24 bits)	8, 10 or 12 bits per channel, including HDR
Où l'ouvrir	Windows and macOS apps, older software and browsers	Current Chrome, Edge, Firefox and Safari 16+; fewer editing apps
Idéal pour	older Windows programs, embedded devices and tools that need raw pixels	the smallest high-quality images for websites and apps
Principal inconvénient	very large files and no transparency	il est lent à créer et de nombreuses applis de retouche et anciens appareils ne peuvent pas l’ouvrir

In short: choose BMP for older Windows programs, embedded devices and tools that need raw pixels; choose AVIF for the smallest high-quality images for websites and apps.

Frequently asked questions

How do I convert BMP to AVIF?: Upload your BMP file above. It is converted to AVIF 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 BMP to AVIF lose quality?: AVIF is lossy by default, so some fine detail is discarded to make the file smaller. Raise the quality or switch on lossless in Settings for a closer copy.
BMP or AVIF: which should I use?: Use BMP for older Windows programs, embedded devices and tools that need raw pixels. Use AVIF for the smallest high-quality images for websites and apps. Keep in mind the main drawback of AVIF: it is slow to create and many editing apps and older devices can't open it.
Qu'est-ce qu'un fichier BMP ?: BMP stocke les pixels sans aucune compression. Les fichiers sont volumineux, mais les logiciels très anciens ou simples qui ne lisent pas les formats modernes savent généralement lire un BMP.
Is the BMP to AVIF 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 BMP vers AVIF

Passez en revue les principales fonctionnalités avant de commencer.

Convert BMP files to AVIF online
Choose AVIF quality or switch to lossless
Switch to any other output format in Settings
Batch-convert many BMP files into one ZIP
Preview the result before you download

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Référence des paramètres

Contrôles disponibles pour BMP vers AVIF.

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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