Convert JPG to AVIF Online
Convert JPEG images to next-generation AVIF. Up to 50% smaller, same quality. Free, in your browser.
.webp, .png, .jpg · up to 50 MB
Use cases
JPG to AVIF: next-generation images for the modern web
50% smaller files
AVIF produces files up to 50% smaller than JPG at the same visual quality. Less weight, same sharpness.
Core Web Vitals
Lighter images improve LCP (Largest Contentful Paint), the most important speed metric for SEO.
100% private
Your image is converted in your browser. Never uploaded to any server.
Universal modern support
Chrome 85+, Firefox 93+, Safari 16+. Over 93% of users can already view AVIF.
How it works
Three steps, no hassle
Upload your JPG image
Drag or select your .jpg or .jpeg file. Up to 50 MB, no signup. Works with photos, product images, and any standard JPEG.
AVIF conversion in your browser
Your image converts to AVIF format directly on your device using modern web APIs. Never uploaded to any server.
Download your AVIF
Compare size before and after. A typical AVIF file is 40–60% smaller than the original JPG at equivalent visual quality.
FAQ
Got questions?
AVIF has full support in all major modern browsers: Chrome 85 (August 2020), Firefox 93 (October 2021), and Safari 16 (September 2022, iOS 16 and macOS Ventura). Globally, over 93% of internet users use AVIF-compatible browsers according to Can I Use. Edge (Chromium-based) also gained support with version 121. For users still on non-AVIF browsers, the standard HTML solution is using the picture element with a fallback to WebP or JPG.
In comparative studies with representative image corpora, AVIF produces files approximately 50% smaller than JPG at perceptually equivalent visual quality, measured by metrics like SSIM, DSSIM, or VMAF. In practice, the reduction varies by content: for photos with skin tones and natural textures, the difference can exceed 60%; for synthetic gradients or text, it may be 30–40%. The weight reduction translates directly into faster load times, especially on slow mobile connections.
WebP was developed by Google in 2010 based on the VP8 video codec. AVIF is based on AV1, a codec developed by the Alliance for Open Media (AOMedia) founded in 2015 and published in January 2019 — nearly a decade of additional compression research later. AVIF produces images approximately 20% smaller than WebP at the same quality, supports HDR (high dynamic range), 10 and 12 bits per channel, and the same level of alpha channel support. For new web content, AVIF is the optimal choice when file size and quality are priorities.
Yes. The AVIF format supports an alpha channel (up to 12-bit transparency). However, when converting JPG to AVIF there is no transparency to preserve, since JPG has no alpha channel. If you're starting from a PNG with transparency and want to preserve it in AVIF, use Convertir.ai's PNG to AVIF tool.
AVIF is excellent for photographs. Its compression algorithm is specifically optimized for photographic content with continuous tones, smooth gradients, and natural textures. It's the recommended format for product images in e-commerce, editorial photography, and any visually intensive website. It is also suitable for offline use as a photographic archive format, though for non-destructive editing in professional photographic workflows, RAW formats remain preferable.
Google Core Web Vitals includes LCP (Largest Contentful Paint) as one of its three main metrics: it measures the time until the largest visual content element on screen finishes rendering. On most pages, this element is an image (hero banner, product image, main photo). An AVIF file 50% smaller than its JPG equivalent downloads in half the time under equivalent bandwidth conditions, directly reducing LCP. Google has used LCP as a ranking signal in its search algorithm since May 2021.
Convert JPG to AVIF: the next-generation image format that reduces file size by 50%
AVIF (AV1 Image File Format) is the next-generation image format based on the AV1 video codec. AV1 was developed by the Alliance for Open Media (AOMedia), a consortium founded in September 2015 by Amazon, Apple, ARM, Cisco, Google, Intel, Microsoft, Mozilla, Netflix, Nvidia, and Samsung, among others, with the goal of creating a royalty-free codec technically superior to existing ones. The AV1 codec was finalized and published in January 2019 after four years of collaborative development. The AVIF specification as a static image container based on AV1 was published by AOMedia in February 2019. The performance difference versus JPEG is substantial: independent studies conducted by Netflix (one of the main drivers of AV1 development), Google, and Ghent University show that AVIF produces images approximately 50% smaller than JPEG at equivalent visual quality, measured by perceptual metrics such as SSIM, MS-SSIM, VMAF, and DSSIM. For typical photographic images — portraits, landscapes, product images with backgrounds — size reduction ranges from 40% to 65% depending on the specific content and compression parameters used.
AVIF adoption across major web browsers was completed in a relatively short period by industry standards: Chrome 85 (released August 25, 2020) was the first major browser to implement full AVIF encoding and decoding support. Opera (Chromium-based) followed shortly after. Firefox 93 (released October 5, 2021) added full AVIF support. Edge (Chromium-based since version 79) inherited Chrome's support. Safari 16, released September 12, 2022 alongside iOS 16 and macOS Ventura, completed adoption across all three major browser engines (Chromium/Blink, Gecko/Firefox, WebKit/Safari). According to Can I Use data with global usage statistics from April 2025, over 93% of internet users use browsers that natively support AVIF. The impact on the web platform ecosystem has been significant: WordPress added native AVIF support starting with version 6.5 (March 2024), Shopify began automatically serving images in AVIF in 2023, and major CDNs (Cloudflare, Fastly, Imgix, Cloudinary, Amazon CloudFront) support AVIF transformation and delivery with content negotiation.
For web developers and site owners, migrating from JPG to AVIF has a direct, measurable impact on Google Core Web Vitals, which became a ranking signal in the search algorithm in May 2021. The LCP (Largest Contentful Paint) metric measures the time until the largest visual element on screen — often a hero image, a banner, or a product photo — finishes rendering. Reducing the weight of these images by 50% proportionally reduces download time on bandwidth-limited connections, directly impacting LCP. For e-commerce sites with thousands of product images, the reduction in CDN bandwidth represents significant cost savings: on a site with 10,000 product images averaging 200 KB in JPG, migrating to AVIF can reduce storage and bandwidth by approximately 100 GB per million page views. Platforms like Shopify, WooCommerce, and Magento have incorporated AVIF as a priority format in their image optimization pipelines precisely because of this impact on performance and operational cost. Convertir.ai lets you validate JPG-to-AVIF conversion quality and file size directly in the browser, with zero dependencies and zero upload risk.