Convertir en AVIF
Glissez vos fichiers HEIC ici ou cliquez pour parcourir
Comment convertir HEIC en AVIF
Convertissez HEIC en AVIF en 4 étapes simples sur votre ordinateur ou smartphone :
- 01Step 1
Sélectionnez votre fichier HEIC
Cliquez sur "Sélectionner les fichiers HEIC" ou glissez-déposez vos fichiers .HEIC dans le convertisseur ci-dessus.
- 02Step 2
Format de sortie préconfiguré
Le convertisseur est déjà configuré pour générer du AVIF. Vous pouvez ajuster la qualité ou le débit si besoin.
- 03Step 3
Convertissez dans le navigateur
Cliquez sur "Convertir en AVIF". Le moteur WebAssembly traite votre fichier localement grâce au processeur de votre appareil.
- 04Step 4
Enregistrez votre fichier AVIF
Cliquez sur "Télécharger" pour récupérer immédiatement votre fichier .AVIF. Aucune attente en file cloud.
HEIC vs AVIF : Comparatif des Formats
Detailed side-by-side technical breakdown of container, compression, and compatibility properties.
| Caractéristique | HEIC (Source) | AVIF (Target) |
|---|---|---|
| Full Name | High Efficiency Image Container | AV1 Image File Format |
| Standard Body / Developer | Moving Picture Experts Group (MPEG) | Alliance for Open Media (AOMedia) |
| Compression Type | Hybrid | Hybrid |
| Compression Algorithm | HEVC / H.265 Main Still Picture Profile | AV1 intra-frame coding with advanced directional transforms |
| Typical File Size | 1.2 – 2.8 MB (50% smaller than JPEG) | 0.2 – 1.2 MB (50% smaller than JPEG, 20% smaller than WebP) |
| Typical Quality | Exceptional structural fidelity (SSIM > 0.98) | Industry-leading compression efficiency with HDR support |
| Common Uses | Apple iPhone default camera photos, HDR mobile capture, Burst shots with depth maps | Next-generation web images, High-dynamic-range (HDR) web display |
| Device & Platform Support | iOS 11+, macOS High Sierra+, Windows 10/11 (with HEIF extension), Android 9+ | Chrome 85+, Firefox 93+, Safari 16+, Android 12+ |
| Transparency / Alpha Support | Supported | Supported |
| MIME Type Identifier | image/heic | image/avif |
Understanding HEIC to AVIF In-Memory Conversion
Converting High Efficiency Image Container (HEIC) to AV1 Image File Format (AVIF) involves a transformation between two specialized encoding specifications. HEIC leverages modern Discrete Cosine Transform (DCT) and intra-frame directional prediction from HEVC (H.265). It encapsulates high-depth color, transparency alpha masks, and auxiliary depth channels with half the storage footprint of JPEG.
AVIF packages AV1 intra-frames inside an ISOBMFF container, providing cutting-edge compression ratios and wide-color-gamut HDR color handling.
Unlike traditional file conversion utilities that transmit sensitive files across the public internet to third-party server farms, MixConvert processes your data locally inside your web browser sandbox using compiled WebAssembly workers. Decoded client-side in browser RAM using compiled libheif and libde265 WebAssembly workers, transforming directional prediction blocks directly into 32-bit linear RGBA canvas memory. Processed via in-browser libavif WebAssembly builds or native browser ImageDecoder APIs directly in local memory. Once you close the browser tab, all temporary memory buffers are completely garbage collected.
Questions Fréquentes sur la conversion HEIC en AVIF
Frequently asked questions about safety, accuracy, and client-side processing.