HEIC output sizes at 2×
Every pixel becomes a 2 × 2 block of 4 new pixels, filled in by the AI model instead of copied. File sizes are estimates for JPG output.
| Source | Output at 2× | Megapixels | Approx. JPG size |
|---|---|---|---|
| 640 × 480 Old webcam or phone | 1,280 × 960 | 1.2 | 420 KB |
| 1,024 × 768 Web image | 2,048 × 1,536 | 3.1 | 1.1 MB |
| 1,920 × 1,080 Full HD frame | 3,840 × 2,160 | 8.3 | 2.8 MB |
| 4,032 × 3,024 12 MP phone photo | 8,064 × 6,048 | 48.8 | 16 MB |
Where it runs and what it costs
- Runs
- On your device
- Plan
- Free, 5 a day
- Suggested output
- JPG
2× is free (5 images a day) and runs on your device, so nothing uploads. Files up to 100 MB work on the free plan, and nothing gets a watermark.
About High Efficiency Image Container files
Default iPhone photo format. Decoded on your device before upscaling, 10-bit files need an 8-bit copy first.
Output is written as PNG, JPG or WEBP. For HEIC input, JPG is the closest match.
How to upscale HEIC 2×
- Open the upscaler and drop your .heic files. Free batches take 5 files, Pro batches take 200.
- Choose 2× and a model: Photo for camera shots, Illustration for art and logos, Scanned text for documents.
- Pick JPG 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 HEIC 2× free?
Yes. The free plan includes 5 upscales a day at 2×, with no watermark and no account needed.
Does my HEIC file upload anywhere?
No. At 2× the image is decoded and enlarged inside your browser, and the file never leaves your device.
How big is a HEIC after 2× upscaling?
Width and height both grow 2 times, so the pixel count grows 4 times. A 1920 × 1080 image becomes 3,840 × 2,160, about 2.8 MB as JPG.
Why do some HEIC photos need an 8-bit copy first?
HEIC from recent iPhones can be 10-bit. Browsers decode 8-bit HEIC reliably, so a 10-bit file may need to be exported as an 8-bit JPG or HEIC first, for example with the Photos app share sheet.
When is 2× not enough?
When you need a print or a 4K screen from a small image. A 640 × 480 file only reaches 1280 × 960 at 2×. Check the print size chart to see the pixels you need.