You can upload a maximum of 10 images at a timeDrag & Drop your images here orSupported formats: PNG
Max 20 MB ยท 10 files
Output format
90%
Resize
Convert PNG to AVIF Online Free, Smaller High-Quality Images
How to Convert Images Online
1Upload your PNG file
Click the upload button or drag and drop your PNG file. Upload up to 10 files for batch conversion.
2Select AVIF output format
Choose AVIF as the output format. Adjust quality if needed โ 85 is the default.
3Convert
Click Convert. Convertify processes your PNG using Rust and libvips.
4Download AVIF
Download your converted AVIF file. The PNG is deleted from the server immediately after download.
Supported Image Formats
PNG
Lossless format that preserves every pixel. Best for screenshots and logos.
AVIF
Next-gen format with excellent compression. Up to 50% smaller than JPG.
HEIC
Apple photo format used by iPhone and iPad. High quality with small file size.
HEIF
High Efficiency Image Format โ same as HEIC, used on Apple devices.
WebP
Modern image format by Google. Up to 30% smaller than JPG with the same quality.
JPG
Universal format for photos. Supported everywhere, great balance between quality and file size.
GIF
Classic format for simple animations. Supports transparency and up to 256 colors.
BMP
Uncompressed bitmap format. Maximum quality but very large file size.
TIFF
Professional lossless format used in printing and photography.
PPM
Portable Pixmap format used in Unix/Linux environments.
HDR
High Dynamic Range format storing extended brightness data.
FITS
Flexible Image Transport System used in astronomy and science.
PDF
Portable Document Format. Convert PDF pages to JPG, PNG or WebP images.
AVIF vs WebP vs HEIC vs JPG
Quick comparison to help you choose the right format
AVIF
- Size: Up to 50% smaller than JPG
- Browsers: Chrome, Firefox, Safari
- Transparency: โ
- Best for: Web performance
WebP
- Size: 25-35% smaller than JPG
- Browsers: All modern browsers
- Transparency: โ
- Best for: Web compatibility
HEIC
- Size: ~50% smaller than JPG
- Browsers: Safari only
- Transparency: โ
- Best for: iPhone storage
JPG
- Size: Baseline
- Browsers: All browsers & apps
- Transparency: โ
- Best for: Universal sharing
Frequently Asked Questions
- Does AVIF support transparency like PNG?
- Yes. AVIF supports full alpha channel transparency. Transparent backgrounds, soft edges, and semi-transparent areas all convert cleanly from PNG to AVIF with transparency fully preserved.
- How much smaller will my AVIF be compared to PNG?
- For photographs, 60 to 80% smaller. For UI screenshots and design assets, 70 to 90% smaller. A 2 MB PNG screenshot typically becomes around 400 KB as AVIF. Even lossless AVIF, the default, is 20 to 35% smaller than lossless PNG.
- Will I lose quality converting PNG to AVIF?
- Convertify converts losslessly by default, so there is zero quality loss and the AVIF is still 20 to 35% smaller than the PNG. If you move the quality slider to lossy AVIF for smaller files, around 80 to 90 stays visually identical to the source for most content.
- Can I convert multiple PNG files to AVIF at once?
- Yes. Convertify supports batch conversion: upload up to 10 PNG files and download the converted AVIFs.
- Is AVIF supported by all browsers in 2026?
- AVIF is supported by Chrome 85+, Firefox 93+, Safari 16+, and Edge 121+, roughly 94% of global browser traffic. For the remaining few percent, use the HTML picture element with a WebP or JPG fallback.
- Should I use PNG or AVIF for my website?
- AVIF for delivery, PNG for editing. Keep your PNG as the source file and convert to AVIF for web serving. AVIF is 60 to 80% smaller while maintaining excellent quality and full transparency support.
- What is the best quality setting for PNG to AVIF?
- Convertify defaults to lossless AVIF, which has zero quality loss. If you use the slider for smaller lossy files, 80 to 90 is visually identical to the PNG source for most content, and 75 to 80 is usually enough for flat graphics and logos.
- Does converting PNG to AVIF preserve the color profile?
- Yes. Convertify keeps metadata by default, so an embedded ICC color profile, including sRGB or Display P3, is carried into the AVIF. Colors stay accurate on color-managed displays because the profile travels with the file.
Why convert PNG to AVIF?
PNG is a lossless format: every pixel is stored exactly. This makes PNG files large, and a 24-megapixel photo saved as PNG can exceed 70 MB. AVIF achieves 60 to 80% smaller files than PNG for photographic content at visually identical quality, and a 2 MB PNG screenshot typically drops to around 400 KB as AVIF. For web delivery, AVIF is the strongest target for images that started as PNG: it preserves fine detail and full alpha transparency, and as a format it also supports HDR and wide-gamut color, though converting a standard sRGB PNG produces a standard-gamut AVIF rather than adding HDR that was not in the source. As of 2026, AVIF is supported by Chrome 85+, Firefox 93+, Safari 16+, and Edge 121+, covering roughly 94% of global browser traffic.
What happens to PNG transparency when converting to AVIF?
PNG's alpha channel is fully preserved when converting to AVIF, because the transparency is image data that the pixel pipeline carries through. AVIF supports 8-bit and 10-bit alpha, so transparent backgrounds, soft edges, semi-transparent overlays, and cutout product photos all convert cleanly. In our benchmarks, a transparent PNG logo of 92 KB compressed to just 18 KB as AVIF, a 92% reduction with full transparency intact. This makes PNG to AVIF conversion well suited to logos, UI elements, product photos with cutout backgrounds, and design assets. Unlike JPG, which removes transparency entirely, AVIF keeps it while still cutting file size.
PNG vs AVIF: key differences
| Feature | PNG | AVIF |
|---|---|---|
| Compression | Lossless only | Lossy and lossless |
| File size (2MP photo) | ~5 to 10 MB | ~300 to 800 KB |
| Transparency | Full alpha channel | Full alpha channel |
| HDR / wide gamut | No | Supported by the format |
| Browser support (2026) | Universal | Chrome, Firefox, Safari, Edge (~94%) |
| Color depth | 8-bit or 16-bit | 8-bit, 10-bit, 12-bit |
| Best for | Archival, editing source | Web delivery, performance |
PNG vs AVIF compression benchmarks with real numbers
PNG lossless compression means files scale directly with content complexity. A 1920x1080 screenshot is typically 500 KB to 2 MB as PNG. The same screenshot as AVIF at quality 80 is typically 40 to 150 KB, a 70 to 90% reduction. For photographs, a 24-megapixel camera image is 60 to 70 MB as PNG versus 1 to 3 MB as AVIF at quality 75. For logos and flat graphics, a PNG logo of 92 KB drops to just 2 KB as AVIF at quality 80, an 88% reduction in our benchmarks. Even lossless AVIF, which is Convertify's default, beats lossless PNG by 20 to 35% for photographic content.
Core Web Vitals: how PNG to AVIF conversion improves LCP
Largest Contentful Paint (LCP) measures how quickly the main visible image loads. Images account for roughly 50% of the average web page total weight. Switching from PNG to AVIF for hero images cuts image payload by 60 to 80%, directly reducing LCP time. Google PageSpeed Insights flags oversized images as a top LCP issue and explicitly recommends next-gen formats. On a typical product page with 10 PNG images averaging 500 KB each (5 MB total), converting to AVIF reduces that to roughly 1 to 1.5 MB. On a 3G mobile connection, that difference is 3 to 4 seconds of load time. Both AVIF and WebP qualify as next-gen formats recommended by Google.
Figma, Sketch, and design tool workflows
Design tools export assets as PNG by default. Figma, Sketch, Adobe XD, and Affinity Designer all produce PNG exports for icons, illustrations, UI components, and marketing assets. The standard workflow: export PNG from your design tool, convert to AVIF for web delivery, keep PNG as the editable source file. Figma does not natively export AVIF, which makes a converter the practical solution. For design assets, the PNG to AVIF pipeline is most valuable for hero images, feature illustrations, and background graphics where visual quality is critical but file size directly impacts Core Web Vitals scores. Alternatively, PNG to WebP offers broader tool support as a fallback format.
Batch PNG to AVIF conversion
Convertify supports batch conversion: upload up to 10 PNG files at a time and download the converted AVIFs. This is useful when processing Figma or Sketch export batches, converting product images for an e-commerce store, preparing documentation screenshots for web publishing, or optimizing an icon set for web delivery. Drag and drop your PNG files onto the converter, select AVIF as the output format, and click Convert.
Privacy and security
Convertify processes all files server-side over an encrypted HTTPS connection. Your PNG files are never stored permanently: they are deleted immediately after conversion and download. No account is required, and no personal data is collected. One honest note: the image's own embedded metadata, such as EXIF and any GPS location, is preserved in the AVIF output, so if you need that removed you would strip it separately. Files are purged within 6 hours even if not downloaded.
How Convertify converts PNG to AVIF
Convertify uses a Rust backend with libvips for PNG to AVIF conversion. libvips processes images through a demand-driven streaming pipeline that never loads the entire file into memory. The full alpha channel is preserved in the AVIF output. Encoding is lossless by default, and a quality slider lets you switch to smaller lossy AVIF when you prefer size over a pixel-exact copy. Metadata is kept by default, so an embedded ICC color profile and EXIF data are carried into the AVIF, which means a wide-gamut or Display P3 PNG keeps its profile and stays color-accurate on color-managed displays. Files are processed in seconds and deleted immediately after download.