ConvertOwl

Convert JPG to AVIF — Smallest Modern Format

AVIF achieves 40–55% smaller files than JPEG at the same visual quality, making it the best format for image-heavy websites and applications. This tool converts your JPEG photos to AVIF in your browser — with automatic EXIF orientation correction — so portrait photos always come out right-side up. No upload, no account required.

70%

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Up to 50.0 MB per file

How to use this tool

  1. Add your JPEG photos

    Drop JPG or JPEG files onto the converter. EXIF orientation tags are read automatically, so portrait-mode photos are rotated correctly in the output.

  2. Choose quality

    AVIF at 70% quality looks comparable to JPEG at 90%. Start with the default and lower it further for aggressive size reduction. Even at 55% quality, AVIF often looks better than JPEG at 80% due to superior compression.

  3. Convert

    Click Convert. AVIF encoding is slow (10–30 seconds per image) — this is normal. The browser uses a full AV1 software encoder for maximum compression efficiency.

  4. Deploy to your website

    Serve AVIF with a JPEG or WebP fallback using the <picture> element. Your CDN may also do this automatically — check your settings.

Frequently Asked Questions

How does the file size of AVIF compare to JPEG?

AVIF consistently produces 40–55% smaller files than JPEG at equivalent perceived quality. A 500 KB JPEG photo typically becomes a 220–300 KB AVIF. For a typical image-heavy website, this can reduce total image payload by half, improving load times and Core Web Vitals scores significantly.

Will AVIF make my website's Google PageSpeed score better?

Yes. Google's PageSpeed Insights and Lighthouse tools specifically recommend "Serve images in next-gen formats" and list AVIF and WebP as the preferred options. Switching from JPEG to AVIF can significantly improve your LCP (Largest Contentful Paint) score, which is a key ranking signal.

Does AVIF support the same color depth as JPEG?

AVIF supports up to 12-bit per channel color (4096 tones per channel vs JPEG's 256), wide color gamuts (P3, Rec. 2020), and HDR. For typical sRGB JPEG photos, you'll see no difference in color reproduction — AVIF just stores those colors more efficiently.

Will my JPEG's orientation be correct in the AVIF?

Yes. We read the EXIF orientation tag from your JPEG and apply the correct rotation to the pixel data before encoding. The AVIF output has the orientation physically baked into the pixels, so it displays correctly in all viewers regardless of EXIF support.

Should I switch my entire site from JPEG to AVIF right now?

AVIF has ~90% global browser support as of 2024. Use a <picture> element: <source type="image/avif" srcset="image.avif"> with <img src="image.jpg"> fallback. This gives AVIF to modern browsers and JPEG to the rest. Alternatively, configure your CDN to auto-negotiate and serve AVIF based on the Accept header.

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