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AVIF → PNG
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Convert AVIF images to universally supported PNG format.
AVIF's HDR capability is both its greatest strength and its most common source of workflow friction. The format stores images in the AV1 Image File Format container with HEVC or AV1 intra-frame compression, supporting up to 12-bit depth per channel and wide-gamut color spaces like BT.2020, PQ, and HLG. When you drop an AVIF into an older tool — an image editing suite from 2021, a canvas API in Firefox before v93, a content management system that processes uploads through GD or ImageMagick builds compiled without libaom — you get nothing. PNG, by contrast, is the universal raster interchange format: every browser since IE 6, every OS image viewer, every design tool handles it without a plugin or compile flag. Converting AVIF to PNG trades compressed storage for unconditional compatibility, which matters every time you hand a file to a system you do not fully control.
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AVIF vs PNG: Side-by-Side Quality Inspection
Drag the interactive slider divider to compare original AVIF details against the converted PNG output in real time.
AVIF Image
Source formatAVIF is a next-generation image format based on the AV1 video codec. It offers significantly better compression than JPEG and WebP while maintaining excellent visual quality, including HDR and wide color gamut support.
PNG Image
Target formatPNG is a lossless image format that supports transparency. It is ideal for graphics, logos, screenshots, and any image where preserving exact pixel data is important.
Why convert AVIF to PNG
The practical triggers for this conversion are narrow but real: a client's CMS strips or rejects AVIF uploads, a macOS or Windows thumbnail pipeline (pre-2022 builds) shows a blank icon, an older Android WebView inside a hybrid app fails to decode the container, or a print workflow expects a lossless raster with an embedded ICC profile that downstream software can read without AV1 decode support. PNG acceptance is effectively universal, which is the only reason to accept the significant increase in file size that comes with it.
HOW TO CONVERT
AVIF → PNG
Provide the AVIF
Click or drag to upload. We accept a single AVIF file per job, with an optional queue of additional images for batch mode.
Encode to PNG
The conversion decodes the AVIF, resolves the colour space to sRGB and writes the PNG container around the pixel data.
Save the PNG
The download is streamed back over HTTPS. If you uploaded multiple files, a ZIP with all PNG outputs is produced instead.
Common Use Cases
Share across platforms
Send PNG files to anyone without worrying about whether they have the right software for AVIF.
Embed in documents
Drop PNG output into Word, Google Docs, PowerPoint, Notion or a website without conversion warnings.
Optimize size
PNG often produces smaller files than AVIF for web, email and storage.
Archive & future-proof
Store in a widely-supported format that will still open on future operating systems without legacy plugins.
AVIF vs PNG — Strengths and limitations
What each format does best, and where it falls short.
AVIF Strengths
- Best-in-class compression efficiency — 30-50% smaller than JPEG for the same quality.
- Royalty-free and patent-unencumbered (unlike HEIC).
- Supports alpha transparency, HDR, wide gamut (BT.2020), and up to 12-bit color.
- Progressive decoding: a blurry preview appears while the file is still downloading.
- Supported in all major browsers since late 2022 — no polyfills needed.
Limitations
- Encoding is CPU-expensive — an AVIF export can take 10-30× longer than JPEG.
- Older software (pre-2022) cannot open AVIF without plugins.
- Email clients still largely ignore it — stick to JPEG for attachments.
PNG Strengths
- Lossless compression — every save preserves the original pixels perfectly.
- Full 8-bit alpha channel for smooth transparency.
- Excellent for text, UI screenshots, logos, and line art.
- Royalty-free and an ISO standard (ISO/IEC 15948).
- Supports 16-bit color depth for high-fidelity work.
Limitations
- Much larger than JPEG for photographs (no perceptual compression).
- No native animation in most software (APNG support is inconsistent).
- No CMYK support — web and screen only, not print.
AVIF vs PNG — Technical specifications
Side-by-side comparison of the technical details.
AVIF
- MIME type
- image/avif
- Container
- HEIF (ISOBMFF)
- Codec
- AV1 (intra-only)
- Max dimensions
- 65 536 × 65 536 px
- Color depth
- Up to 12-bit per channel
- Color spaces
- sRGB, Display-P3, BT.2020, arbitrary ICC
PNG
- MIME type
- image/png
- Max dimensions
- 2^31 − 1 pixels per side (2.1 billion)
- Color depth
- 1, 2, 4, 8 or 16 bits per channel
- Compression
- Lossless — DEFLATE (zlib)
- Transparency
- Full 8-bit alpha channel
- Standard
- ISO/IEC 15948:2004
| Specification | AVIF | PNG |
|---|---|---|
| MIME type | image/avif | image/png |
| Container | HEIF (ISOBMFF) | — |
| Codec | AV1 (intra-only) | — |
| Max dimensions | 65 536 × 65 536 px | 2^31 − 1 pixels per side (2.1 billion) |
| Color depth | Up to 12-bit per channel | 1, 2, 4, 8 or 16 bits per channel |
| Color spaces | sRGB, Display-P3, BT.2020, arbitrary ICC | — |
| Compression | — | Lossless — DEFLATE (zlib) |
| Transparency | — | Full 8-bit alpha channel |
| Standard | — | ISO/IEC 15948:2004 |
AVIF vs PNG — Typical file sizes
Approximate file sizes for common scenarios.
AVIF
- Thumbnail (400px) 10-30 KB
- Web photo (1920px) 80-300 KB
- 4K photo (3840px) 300 KB - 1.2 MB
- Lossless copy of 24MP photo 8-15 MB
PNG
- Icon or small logo 2–20 KB
- UI screenshot (1920×1080) 200–800 KB
- High-res photo (12 MP) 10–30 MB
- Print-ready illustration 5–50 MB
Quality & Compatibility
AVIF to PNG is a lossless-output conversion, but the path depends on what the source AVIF contains. If the AVIF was encoded losslessly and at 8-bit depth in sRGB, the decode-to-PNG round-trip is mathematically lossless: every pixel value is preserved. If the source is a 10-bit or 12-bit HDR AVIF in BT.2020 or PQ, the conversion must tone-map or truncate to 8-bit sRGB, which loses highlight and shadow detail the AVIF was holding. Alpha transparency (AVIF supports it natively via an alpha auxiliary image) is decoded and written into PNG's RGBA channel intact. EXIF and XMP metadata embedded in the AVIF container are typically preserved in the output PNG's metadata chunks, though HEIF-specific rotation flags may or may not survive depending on the decoder. ICC profiles embedded in the AVIF are carried over to the PNG iCCP chunk when the decoder honors them.
Tips for Best Results
- If your AVIF source is HDR (shot on a modern iPhone in HEIF/AVIF or exported from Lightroom with a wide-gamut profile), inspect the output PNG at 100% zoom after conversion to confirm highlight detail has not been clipped — tone mapping behavior varies between decoders.
- PNG uses DEFLATE lossless compression, so a converted PNG will be several times larger than the AVIF. If the resulting PNG is destined for the web and you need browser compatibility without the size penalty, convert to WebP instead, which has near-universal browser support and maintains lossless quality.
- If you need to preserve the alpha channel from an AVIF for compositing in a design tool, confirm the output is RGBA PNG (not flattened to white) by checking the file's color mode in your editor before using it in a project.
Frequently Asked Questions
AVIF (AV1 Image File Format) is a next-generation image format based on the AV1 video codec. It offers significantly better compression than JPEG and WebP while supporting HDR, transparency, and wide color gamuts.
It depends on the codecs involved. If both AVIF and PNG are lossy, the pixels are re-encoded and a small amount of detail is discarded — invisible at default quality settings on photographs. If PNG is lossless (PNG, TIFF, BMP) the output keeps every pixel of the decoded AVIF exactly, but cannot recover detail that AVIF had already compressed away.
While AVIF offers superior compression, not all software and platforms support it yet. Converting to PNG ensures your images work everywhere with lossless quality.
Often yes, especially when PNG is lossless. AVIF tuned for efficient web delivery will usually produce smaller files than PNG's default settings. If file size matters, drop the quality in Advanced or pick a more compressed target format instead.
Yes, both AVIF and PNG support alpha transparency. Any transparent areas in your AVIF image will be preserved in the PNG output.
KaijuConverter uploads over HTTPS, processes the image in an isolated container and deletes both the source and the output within two hours. No account is required, file contents are never logged, and we do not use uploads to train any model. For confidential material, the paid plan includes a data-processing agreement.
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