HEIC to AVIF Converter
Convert HEIC images to AVIF instantly in your browser. No upload, no account needed — fully client-side and secure.
WebP typically reduces file size by 25-35% compared to PNG with equivalent visual quality.
Frequently Asked Questions
Is my image data safe?
Absolutely. 100% of the conversion processing occurs inside your local web browser sandbox. No file chunks or metadata are transmitted to our servers or stored anywhere externally.
Will transparency be preserved?
Converting to lossless formats like PNG preserves full transparency (alpha-channel). If you are converting to JPEG, any transparent sections are rendered as solid background colors (customizable in output settings).
Can I convert multiple images at once?
Yes, you can drop or select multiple files simultaneously. Our tool processes and triggers the sequential download of all assets with a single click.
About HEIC
What is a HEIC file? Apple's proprietary version of the HEIF (High Efficiency Image File) format. It uses advanced video compression algorithms to store photos at high quality taking up half the space of a standard JPG.
How to open a HEIC file? Natively on Apple devices (iOS 11+, macOS High Sierra+). On Windows, it requires installing a specific HEVC extension from the Microsoft Store.
Typical use of a HEIC file: The default photo format for modern iPhones and iPads.
Origin of the HEIC file: Based on the HEVC (H.265) video standard developed by the MPEG group, adopted by Apple in 2017.
Modern alternatives for HEIC: For universal web sharing, HEIC files are almost always converted to JPG or WebP.
About AVIF
What is an AVIF file? A next-generation, open-source image format derived from the AV1 video codec. It offers extremely high compression efficiency and supports HDR (High Dynamic Range) and transparency.
How to open an AVIF file? Supported by modern web browsers (Chrome 85+, Safari 16+, Firefox 86+) and modern image editors.
Typical use of an AVIF file: High-performance web development and delivering the highest quality images at the lowest possible bandwidth.
Origin of the AVIF file: Developed by the Alliance for Open Media (AOMedia) and released in 2019.
Modern alternatives for AVIF: None currently; AVIF *is* the modern alternative. Its main competitor is JXL.