JPG → AVIF
Convert JPG to AVIF – locally in your browser
Why JPG → AVIF?
AVIF is the future of image compression: up to 50% smaller than JPG at the same quality, royalty-free, and with growing browser support. Ideal for web developers who want to optimize load times and bandwidth.
Frequently Asked Questions
What is an AVIF file?
AVIF (AV1 Image File Format) is the most modern image format based on the AV1 codec. It offers up to 50% smaller files than JPG at the same quality.
Are my images safe?
Yes, 100%. The conversion happens completely locally in your browser – your images are never uploaded to a server.
Can I convert multiple files at once?
Yes, you can upload and convert as many JPG files as you want at the same time.
Is the conversion free?
Yes, wandlio.de is completely free. No registration, no limits, no ads.
About AVIF
AVIF (AV1 Image File Format) is based on the AV1 video codec from the Alliance for Open Media and was standardized in 2019. It offers the best compression of any current image format - typically 50 percent smaller than JPEG at the same quality - and supports HDR with PQ and HLG transfer functions, transparency, and animation. AVIF uses intra coding from the AV1 codec with block partitioning and filters optimized for still images. The format is supported by Chrome, Firefox, and Edge; Safari since version 16 (2022). AVIF is considered the most promising candidate for the next standard web image format. The disadvantage is the still longer encoding time compared to JPEG and WebP, which matters for large volumes of images. AVIF is patent-free and royalty-free, making it free from patent restrictions unlike HEIC/HEIF. AVIF with 10-bit color depth enables extended color gamut and higher dynamic range for professional photography.
About JPEG
JPEG (Joint Photographic Experts Group) was standardized as ISO 10918 in 1992 and remains the most widely used image format for photographs worldwide. Its lossy compression is based on the discrete cosine transform (DCT) and typically achieves compression ratios of 10:1 to 20:1 with barely perceptible quality loss. The algorithm was developed starting in 1986 by a working group led by Hiroshi Yasuda and quickly became the standard for web images, digital photography, and social media platforms. JPG files support 8-bit color channels in RGB color space and embedded EXIF metadata containing camera settings, GPS data, and timestamps. The format does not support transparency or animation and allows only one color space per image – limitations that are rarely relevant for its primary use as a photo format. With repeated compression, quality degrades progressively due to generation loss, making JPG unsuitable for editing and better suited as a final output format. The .jpg extension instead of .jpeg dates back to the 8.3 character limitation of early Windows file systems. JPEG XL was proposed as a successor in 2021 but has so far failed to gain meaningful market acceptance against WebP and AVIF.
Why convert JPG → AVIF?
JPG (JPEG) is the most widely used image format worldwide, supported by virtually every camera, browser, and image app. It uses lossy DCT compression that degrades quality with each save and doesn't support transparency. Converting to AVIF is required when you need lossless compression (PNG for screenshots/graphics), transparency support, or want to use a modern format with better compression like AVIF or WebP. For archiving and professional editing, AVIF is often the better choice since it produces no compression artifacts and maintains quality across repeated saves.