Image to AVIF
Upload an image and convert it to AVIF format. AVIF offers 50% smaller files than JPEG at the same visual quality.
Reviewed by the ToolNestr Editorial Team — July 2026
How AVIF conversion works
AVIF conversion leverages the AV1 video codec's intra-frame encoding to achieve industry-leading compression efficiency. It uses larger transform blocks (up to 64×64), multiple reference frames within a single image, and advanced tools like recursive filtering, compound prediction, and chroma-from-luma prediction to encode image data with unprecedented efficiency.
This sophisticated encoding allows AVIF to produce files roughly 50% smaller than JPEG at the same perceptual quality. AVIF also supports HDR, wide color gamuts, 10-bit and 12-bit color depth, alpha transparency, and animation — all in one format.
Worked example
Compression comparison by format
Relative file sizes for an uncompressed image saved in each format at equivalent quality.
Alex Rivera
Web developer who serves AVIF images to modern browsers with WebP fallbacks, cutting bandwidth costs by 40% on high-traffic sites.
Jordan Blake
Performance engineer who benchmarks image formats and recommends AVIF for maximum compression gains in CDN delivery pipelines.
Samir Patel
Tech enthusiast who experiments with next-gen formats and converts personal photo archives to AVIF for space-efficient storage.
Emma Costello
Content publisher who converts article images to AVIF to speed up page loads across a large media site with millions of monthly readers.
| Format | Compression rank | Browser support | Best for |
|---|---|---|---|
| AVIF | Best | ~85% | Modern web, HDR, maximum compression |
| WebP | Very good | ~97% | Broad compatibility, web use |
| JPEG | Good | 100% | Universal, photography |
| PNG | Moderate | 100% | Lossless, transparency, screenshots |
| BMP | None | 100% | Uncompressed source files |
How to convert an image to AVIF
Upload your image
Click the file input and select any image from your device. All common formats are supported.
Adjust quality
Use the quality slider to balance file size and visual fidelity. The side-by-side preview helps you compare.
Download AVIF
Click download to save your AVIF file. All processing happens locally on your device.
Tips for using AVIF
AVIF is newer with ~85% browser support
Always provide fallback formats using the
Smallest file sizes of any format
AVIF consistently beats WebP, JPEG, and PNG in compression efficiency. For photo-heavy sites, switching to AVIF can reduce total image payload by 40\u201350%.
HDR and wide gamut support
AVIF supports HDR10, PQ, HLG, and wide color gamuts like Display P3 and Rec. 2020, making it future-proof for modern displays and professional photography.
What is AVIF?
AVIF (AV1 Image File Format) is a modern image format standardised by the Alliance for Open Media. It leverages intra-frame encoding from the AV1 video codec to achieve industry-leading compression efficiency. AVIF supports lossy and lossless compression, alpha transparency, HDR, wide colour gamuts, and animation in a single container format.
How does AVIF compress better than other formats?
AVIF uses block-based predictive coding with AV1\u2019s sophisticated tools, including larger transform sizes, multiple reference frames, and advanced entropy coding. This allows it to encode image data more efficiently than JPEG\u2019s DCT or WebP\u2019s VP8-based compression, resulting in 50% smaller files than JPEG at equivalent quality.
Browser support status
AVIF has achieved roughly 85% global browser support as of 2025. Chrome added support in version 85 (2020), Firefox in version 93 (2021), and Safari in version 16.1 (2022). Internet Explorer and very old browser versions do not support it, so fallback formats are essential for production use.
HDR and wide gamut
AVIF is the first widely-supported image format with native HDR support. It can store 10-bit and 12-bit colour depth, PQ (Perceptual Quantizer) and HLG (Hybrid Log-Gamma) transfer functions, and wide colour gamuts including Display P3 and Rec. 2020. This makes it ideal for high-end photography and modern display technology.
Frequently asked questions
What is AVIF?
AVIF (AV1 Image File Format) is a next-generation image format that uses the AV1 video codec’s intra-frame encoding to achieve industry-leading compression efficiency while maintaining high visual quality.
How much smaller is AVIF compared to JPEG?
AVIF typically produces files that are 50% smaller than JPEG at the same perceptual quality. Compared to WebP, AVIF files are roughly 20–30% smaller.
Which browsers support AVIF?
AVIF is supported by approximately 85% of browsers globally, including Chrome (85+), Firefox (93+), Opera (71+), and Safari (16.1+).
Does AVIF support transparency?
Yes. AVIF supports alpha transparency channels, making it suitable for logos, icons, and other graphics requiring transparent backgrounds.
Does AVIF support HDR?
Yes. AVIF supports High Dynamic Range (HDR) imaging and wide color gamuts including Rec. 2020, PQ (HDR10), and HLG transfer functions.
Is AVIF better than WebP?
AVIF generally offers 20–30% better compression than WebP at the same quality level. However, WebP has broader browser support (~97% vs ~85%) and faster encoding times.
Can I use AVIF on my website today?
Yes, but you should provide fallback formats using the <picture> element. Serve AVIF as the primary source with WebP and JPEG fallbacks for maximum compatibility.
Does AVIF support animation?
Yes, AVIF supports animated sequences, providing an efficient alternative to animated GIFs and even animated WebP with better compression.
What color depths does AVIF support?
AVIF supports 8-bit, 10-bit, and 12-bit color depths, along with 4:2:0, 4:2:2, and 4:4:4 chroma subsampling, making it suitable for professional imaging workflows.
Why is AVIF encoding slower than JPEG?
AVIF uses the more computationally intensive AV1 codec for compression, which requires more processing power for encoding. Decoding is relatively fast and hardware-accelerated on modern devices.