Free Online AVIF Converter Tools
Convert AVIF to any format or any format to AVIF. Up to 50% smaller than JPG, HDR and transparency built in.
ToFormat — free online converter
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Max file size: 30MB · Up to 20 files at once
About AVIF Converter Tools
ToFormat provides a complete collection of free online AVIF converters. Use these tools to convert AVIF images to any supported format — or convert any image to AVIF — directly in your browser. All converters are fast, secure, and require no registration.
Convert from AVIF
Convert to AVIF
Why ToFormat?
Up to 50% Smaller Than JPG
AVIF uses AV1 codec technology to deliver dramatically better compression than JPG. Typical photos shrink by 40–50% with no visible quality difference — the biggest leap in image compression in decades.
HDR & Wide Color Gamut
AVIF natively supports 10-bit and 12-bit color depth, HDR, and wide color gamut (BT.2100). The only web image format built for next-gen displays from the ground up.
Transparency & Lossless
Full alpha channel transparency with both lossy and lossless compression. AVIF handles photos, graphics, logos, and overlays — all in a single modern format.
Batch Convert Securely
Upload up to 20 files at once. Instant server-side processing with automatic deletion within 10 minutes. No registration, no watermarks.
About AVIF Format
AVIF (AV1 Image File Format) was released in 2019 by the Alliance for Open Media — a consortium including Google, Apple, Mozilla, Netflix, and Microsoft. It is based on the AV1 video codec, widely regarded as the most efficient open-source codec available, and applies its compression techniques to still images.
AVIF supports lossy and lossless compression, full alpha channel transparency, HDR with 10-bit and 12-bit color depth, and wide color gamut (BT.2100). It handles both photographic content and sharp graphics well thanks to its large 64×64 superblock architecture, which reduces blocking artifacts common in JPG.
As of 2025, AVIF is supported by Chrome 85+, Firefox 93+, Safari 16.4+, and Edge 121+ — roughly 93% of global browser usage. While slightly behind WebP (97%+), AVIF's superior compression makes it the preferred choice for performance-focused websites that use <picture> with a WebP or JPG fallback.
When to Convert To AVIF
For maximum web performance — converting JPG to AVIF cuts file size by 40–50%, directly improving Largest Contentful Paint (LCP) and Core Web Vitals. Google Lighthouse recommends AVIF as the top next-gen image format.
For transparent graphics — convert PNG to AVIF for transparent images up to 80% smaller than PNG. AVIF's lossy transparency mode is far more efficient than PNG's lossless-only approach for web assets.
For HDR content — AVIF is the only widely supported web format with native HDR and wide color gamut. Ideal for photography portfolios, product shots, and displays targeting HDR-capable screens.
From other modern formats — convert WebP to AVIF for an additional 20–30% size reduction on photographic content, or convert GIF to AVIF for dramatically smaller animated images.
When to Convert From AVIF
AVIF's main limitation is compatibility. Convert AVIF to JPG when sharing photos via email, messaging apps, or platforms that do not yet support AVIF. JPG remains universally accepted on every device and application.
Convert AVIF to PNG for professional print workflows, archival storage, or editing in applications that lack AVIF support. PNG's lossless format ensures no further quality loss during post-processing.
Convert AVIF to WebP when you need broader browser coverage (97% vs 93%) or faster encoding in real-time image pipelines. WebP's encoding speed is significantly faster than AVIF. Explore all options in our complete converter catalog.