Convert PNG to AVIF Locally — The Fastest Way on Mac
AVIF delivers up to 50% smaller files than WebP and up to 80% smaller than PNG — at the same quality. Convert your PNG files to AVIF locally with TinyPixels, no upload required.
How to convert PNG to AVIF
Download and open TinyPixels
Free to install on Mac or Windows — no account needed to start.
Drag your PNGs or a folder in
Convert one icon or an entire product catalog at once.
Choose AVIF as the output format
Set a quality level around 80-85% for visually lossless, maximum-compression results.
Convert and collect the output
AVIF files appear in your output folder — originals stay untouched.
Why AVIF beats WebP and PNG
AVIF is one of the most advanced image formats available today. Based on the AV1 video codec, it typically achieves meaningfully smaller files than PNG, JPEG, and WebP at the same visual quality — a difference that compounds fast across an icon library or product catalog, speeding up page loads and reducing storage.
| Format | Typical size (same quality) | Transparency |
|---|---|---|
| PNG | Baseline (100%) | ✅ Yes |
| JPEG | ~30% smaller | ❌ No |
| WebP | ~50% smaller | ✅ Yes |
| AVIF | ~70–80% smaller | ✅ Yes |
Converting PNG to AVIF is especially impactful for designers and developers with large icon libraries, product image catalogs, or illustration assets — the kinds of files that are typically large PNGs and rarely need to be perfectly lossless for web delivery.
Why convert locally?
AVIF conversion is computationally intensive. Online converters throttle your conversion speed, impose file size limits, and — by definition — require you to upload your files to their servers. TinyPixels runs the conversion engine on your machine, using all your CPU cores in parallel. On Apple Silicon Macs, this is significantly faster than any cloud-based tool.
Also converts to WebP, JPEG, and more
TinyPixels supports all major format conversions in one app. Convert PNG to AVIF, AVIF to JPEG, JPG to WebP — whatever you need, locally.
When WebP might be the more practical choice
AVIF generally produces the smallest files of the two, but the tradeoff is encoding time — AVIF's algorithm is more computationally intensive than WebP's. For a handful of icons or a small product catalog, this difference is negligible. For a very large batch where turnaround time matters — say, a CI pipeline that needs to finish quickly — WebP's faster encoding can make it the more practical everyday choice, even if AVIF would ultimately produce smaller output.
A common pattern: use AVIF for one-time bulk conversions (like migrating an existing asset library) where processing time is a one-off cost, and consider WebP for frequently-regenerated content where conversion speed compounds.
Frequently asked questions
What is AVIF format?
AVIF (AV1 Image File Format) is a next-generation image format based on the AV1 video codec. It delivers significantly better compression than both JPEG and WebP — often 50% smaller files at the same visual quality — while supporting HDR, wide color gamut, and transparency.
Does PNG to AVIF conversion cause quality loss?
AVIF supports both lossy and lossless modes. For web use, lossy at 80–85% quality is visually indistinguishable from the original PNG while being dramatically smaller. TinyPixels gives you full control over the quality slider, so you choose the trade-off.
Is AVIF supported everywhere in 2026?
AVIF is now supported in Chrome, Firefox, Safari (since macOS Ventura / iOS 16), and Edge. As of 2026, global browser support exceeds 93%. For maximum compatibility, you can use AVIF with a WebP or JPEG fallback using the HTML <picture> element.
Can I bulk convert PNG to AVIF?
Yes. TinyPixels is built for bulk conversion. Drop an entire folder of PNG files and TinyPixels will convert all of them to AVIF simultaneously using all your CPU cores — no upload, no waiting for a cloud queue, fully offline.
Is AVIF encoding slower than converting to WebP?
Yes, generally. AVIF's more sophisticated compression algorithm takes more CPU time to encode than WebP's. For very large batches where processing time matters more than maximum compression, WebP can be the more practical choice — TinyPixels' local, multi-core processing narrows this gap significantly compared to a cloud service.
Should I convert my whole PNG icon library to AVIF?
For web and app delivery where AVIF's browser support is adequate for your audience, yes — this is exactly the kind of bulk asset library conversion where AVIF's compression advantage compounds across every file. Keep your original PNG masters if you might need to re-edit or regenerate other formats later.
Convert PNG to AVIF without uploading
Free to start. No credit card, no account, no cloud. See Pro pricing →
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