AVIF to JPG Without Losing Quality — Settings That Work

Can you convert AVIF to JPG without losing quality? The honest answer: almost. AVIF-to-JPG conversion involves encoding to a new lossy format, which means some data is recompressed. But at quality 90+, the visible difference is essentially zero for screen viewing and nearly invisible even in direct comparisons.

Here's what actually happens during conversion and how to get the best possible output.

What Does Quality Loss Actually Mean for AVIF to JPG?

Both AVIF and JPG are lossy formats — they both discard some image data to compress the file. When you convert AVIF to JPG:

• The AVIF decoder reconstructs pixel values from the compressed AVIF data
• The JPG encoder recompresses those pixels using JPG's compression algorithm
• If the JPG quality is high (90+), the output is visually indistinguishable from the input
• If the JPG quality is low (50–70), you'll see artifacts — blocky edges, color banding, smearing

At quality 90, the SSIM (structural similarity) between the AVIF and the output JPG is typically above 0.99 — which means they are 99%+ visually identical.

Quality Settings: What Each Level Gives You

Quality Setting	Visible Quality	File Size vs 90	Best For
60–70	Noticeable artifacts at edges	30–50% smaller	Tiny thumbnails only
75–80	Good, minor artifacts in gradients	20–30% smaller	Web previews, email
85	Very good, artifacts rare	10–15% smaller	General web use
90 (default)	Excellent — no visible artifacts	Baseline	All general use
95	Near-perfect	30–50% larger	Print, professional archives
100	Maximum (some artifacts still possible)	2–4x larger	Technical/archival only

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Is JPG Quality 100 the Same as Lossless?

No. JPG quality 100 is the best JPG can do, but JPG is inherently a lossy format — even at 100, the encoder makes approximations. True lossless image formats are PNG, WebP lossless, or AVIF lossless.

For most real-world conversions — sharing photos, uploading to websites, sending files — quality 90 is the correct choice. Quality 100 produces files 3–4x larger than quality 90 with no perceptible benefit on screen.

Special Cases: HDR AVIF Files

A small percentage of AVIF files use HDR (high dynamic range) or wide color gamut (P3 or Rec.2020 color spaces). When converting these to standard JPG (which only supports sRGB):

• Highlights may appear slightly clipped or washed out
• Colors may shift subtly in the most saturated regions
• This is unavoidable — JPG simply cannot store HDR data

For HDR AVIF files, convert at quality 95 to minimize the compression layer on top of the inevitable gamut clamp. The color shift from the format conversion itself is not something the quality slider can fix.

Frequently Asked Questions

Is there a truly lossless AVIF to JPG conversion?

No. JPG cannot be lossless. The closest you can get is quality 95–100, which produces output that is visually indistinguishable from the source in normal viewing conditions.

Should I use quality 100 for professional photos?

For archival purposes, 95 is sufficient and produces smaller files than 100 with no visible difference. Use 100 only if file size is not a concern and you want maximum headroom for future editing.

Will the converted JPG look different on a phone vs a monitor?

Not at quality 90+. At lower quality settings, compression artifacts are more visible on high-resolution retina/OLED screens than on lower-resolution screens.