Format conversion

Convert Images to AVIF

Q: Will my images be uploaded?

Never. All decoding and encoding for images to AVIF runs inside your browser via WebAssembly. This site has no image upload endpoint at all, and it works offline.

Q: Is it free? Any limits on file count or size?

Completely free — no sign-up, no watermark. images to AVIF has no file-count or per-file size limits. Since images are processed on your device, server costs are zero and this can stay free forever.

Q: Will quality drop?

Default quality is 85 (adjustable 0–100). AVIF is lossy; repeated conversions accumulate artifacts, so convert once from the original.

Q: Does it support batch processing?

Yes. Drop dozens or even hundreds of images at once; the memory-budget scheduler processes them locally in a queue. Download individually or as a single ZIP.

Q: Is EXIF metadata or GPS kept in the output?

No, metadata is stripped by default. EXIF and GPS data are removed from the output, so shared files never leak where photos were taken — a privacy feature by itself.

Q: Why is AVIF encoding so slow? Is it stuck?

AVIF encoding is inherently an order of magnitude heavier than JPG/WebP — a few seconds per image on one thread is normal. This site shows speed hints and supports multithreaded encoding; process a few files first to check the result.

AVIF is today’s compression king: about 50% of JPG size and 80% of WebP size at equal quality. The trade-off is slower encoding (a few seconds per image is normal) — worth it when every byte counts.

No images yet — drag, click, or just ⌘V paste

Output settings

Best per input: photos → WebP, screenshots/graphics → quantized PNG

Quality78

Visually lossless ≈85+Balanced 70–85Tiny size <70

Expected output ≈15–20% of the original (content dependent)

Longest edgeAspect ratio kept

Platform presets

Advanced

Keep ICC · wide gamutKeep profiles like Display P3 when detected

PNG quantize (TinyPNG style)imagequant palette compression; falls back to lossless if unavailable

Quantize tier

How to use

Drag your images files into the dashed box above, or click to choose files (multi-select and paste are supported).
The tool decodes images and encodes AVIF locally in your browser, using this page's defaults — no setup needed.
Download results one by one or as a single ZIP; memory is released immediately after processing, with no copies left behind.

FAQ

Will my images be uploaded?

Never. All decoding and encoding for images to AVIF runs inside your browser via WebAssembly. This site has no image upload endpoint at all, and it works offline.

Is it free? Any limits on file count or size?

Completely free — no sign-up, no watermark. images to AVIF has no file-count or per-file size limits. Since images are processed on your device, server costs are zero and this can stay free forever.

Will quality drop?

Default quality is 85 (adjustable 0–100). AVIF is lossy; repeated conversions accumulate artifacts, so convert once from the original.

Does it support batch processing?

Yes. Drop dozens or even hundreds of images at once; the memory-budget scheduler processes them locally in a queue. Download individually or as a single ZIP.

Is EXIF metadata or GPS kept in the output?

No, metadata is stripped by default. EXIF and GPS data are removed from the output, so shared files never leak where photos were taken — a privacy feature by itself.

Why is AVIF encoding so slow? Is it stuck?

AVIF encoding is inherently an order of magnitude heavier than JPG/WebP — a few seconds per image on one thread is normal. This site shows speed hints and supports multithreaded encoding; process a few files first to check the result.