AVIF output sizes at 4×
Every pixel becomes a 4 × 4 block of 16 new pixels, filled in by the AI model instead of copied. File sizes are estimates for WEBP output.
| Source | Output at 4× | Megapixels | Approx. WEBP size |
|---|---|---|---|
| 640 × 480 Old webcam or phone | 2,560 × 1,920 | 4.9 | 1.2 MB |
| 1,024 × 768 Web image | 4,096 × 3,072 | 12.6 | 3.0 MB |
| 1,920 × 1,080 Full HD frame | 7,680 × 4,320 | 33.2 | 7.9 MB |
| 4,032 × 3,024 12 MP phone photo | 16,128 × 12,096 | 195.1 | 47 MB |
Where it runs and what it costs
- Runs
- On your device
- Plan
- Pro
- Suggested output
- WEBP
4× runs on your device too, so nothing uploads, and needs the Pro plan. Files up to 100 MB work on the free plan, and nothing gets a watermark.
About AV1 Image File Format files
Newer web format with strong compression. Supported for input in current Chrome, Edge, Firefox and Safari.
Output is written as PNG, JPG or WEBP. For AVIF input, WEBP is the closest match.
How to upscale AVIF 4×
- Open the upscaler and drop your .avif files. Free batches take 5 files, Pro batches take 200.
- Choose 4× and a model: Photo for camera shots, Illustration for art and logos, Scanned text for documents.
- Pick WEBP as the output format, or PNG if you need lossless pixels.
- Start the batch and download each file or a ZIP of all of them.
Questions
Is upscaling AVIF 4× free?
4× is part of the Pro plan. The free plan covers 2× for 5 images a day.
Does my AVIF file upload anywhere?
No. At 4× the image is decoded and enlarged inside your browser, and the file never leaves your device.
How big is a AVIF after 4× upscaling?
Width and height both grow 4 times, so the pixel count grows 16 times. A 1920 × 1080 image becomes 7,680 × 4,320, about 7.9 MB as WEBP.
Which browsers can open AVIF files?
Current Chrome, Edge, Firefox and Safari all decode AVIF. The upscaled result is written as WEBP, PNG or JPG, because the engine does not encode AVIF.
Why does 4× need Pro if it runs on my device?
4× is part of the Pro plan. The work still happens in your browser, so your files do not upload even on Pro.