Convert PNG to AVIF
Free online converter for PNG files. Next-generation format with the best compression ratio. Nothing to install, no watermark, and every file is deleted automatically.
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Upload a PNG file to convert it to AVIF. Up to 3 files at once, 100 MB each.
Free · up to 3 files · 100 MB each · files deleted automatically after 1 hour.
About PNG and AVIF
PNG .png
A lossless image format built for graphics rather than photographs. Every pixel it stores comes back exactly as it went in, and it carries a full alpha channel for transparency.
Good for
- Lossless — no generation loss no matter how often you re-save
- Full 8-bit alpha, so edges blend cleanly over any background
- Sharp on text, screenshots, logos and line art
Trade-offs
- Much larger than JPEG for photographs
- No animation in the baseline format
- Large photographic PNGs are slow to transfer
image/png
AVIF .avif
A modern image format derived from the AV1 video codec. It compresses harder than JPEG or WebP at the same visual quality, and handles wide colour and high dynamic range.
Good for
- The smallest files of any format here at a given quality
- Transparency, animation, wide colour gamut and HDR
- Holds up better than JPEG at very low bitrates
Trade-offs
- Support is newest — older browsers and many desktop apps cannot open it
- Encoding is slow compared with JPEG
- Fine detail can smooth over at aggressive settings
image/avif
PNG and AVIF side by side
| PNG | AVIF | |
|---|---|---|
| Compression | Lossless | Lossy or lossless |
| Transparency | Yes — 8-bit alpha | Yes |
| Animation | No | Yes |
| Typically used for | Screenshots, logos, UI assets, anything with transparency | Modern web delivery, bandwidth-sensitive images |
What changes when you convert PNG to AVIF
You choose how much to keep
AVIF can compress either lossily or losslessly, so the quality setting decides the outcome rather than the format. High quality stays close to the PNG you started with; lower settings trade visible detail for a much smaller file.
Encoding takes longer
AVIF comes from the AV1 video codec, and that compression is slow — noticeably slower than writing a JPEG or a PNG. The payoff is the smallest file of any format here at a comparable quality. Check your audience first: browsers handle AVIF well now, but plenty of desktop and print software still will not open it.
Camera data is removed by default
A PNG straight from a phone or camera carries EXIF metadata — model, settings, timestamp and, quite often, the GPS coordinates of where the photo was taken. The converted AVIF is written without it, so a file you are about to share does not quietly carry your location. The orientation flag is read and applied to the pixels first, so the image will not come out sideways once the tag holding it is gone. If you need the metadata kept, there is a setting for it.
How the AVIF is written
Our default is quality 60 — the scale is not comparable with JPEG's, and 60 here is a visually higher setting than the number suggests. The quality control on the converter moves this if you need to — the default aims to be indistinguishable from the source at a sensible file size, rather than to win a compression benchmark.
Colour detail is stored at half resolution
AVIF keeps full brightness detail but records colour at half resolution in each direction, because the eye is far more sensitive to the first than the second. On photographs it is invisible. On saturated edges it is not: red text on white, thin coloured lines and flat graphic shapes can pick up fringing. If the PNG is a screenshot, a logo or anything with text in it, a lossless format will treat it far better.
Other PNG conversions
Other ways to get AVIF
Worth reading next
Where your transparent background went
Transparency is the property most often lost silently in a conversion — the file looks perfect until it lands on a coloured background and grows a white rectangle.
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WebP or AVIF: choosing a modern image format
Both beat JPEG comfortably. They differ in how much they beat it by, how long they take to produce, and what will refuse to open them.
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