Image Upscaler
Enlarge an image 2x or 4x with smooth, high-quality interpolation. Runs entirely in your browser.
When you need an image larger fast - fitting it into a bigger layout slot, printing at a larger size - this tool enlarges it 2x or 4x using high-quality canvas interpolation, smoothing edges as it scales up. It's instant and has no file size limits or model download, unlike the AI Image Upscaler, which uses a neural network for genuinely sharper results on smaller images at the cost of a slower first run. Pick this one for speed and larger source images; pick the AI version when detail quality matters more than speed.
Loading tool
How it works
- 01
Drop or select the image you want to enlarge.
- 02
Choose 2x or 4x scale.
- 03
Download the upscaled image.
Details
- Category
- Images
- Runs
- In your browser
- Files uploaded
- No
- Cost per run
- Free
- Sign-in
- Not required
- Works offline
- Yes, once loaded
Last updated 2026-08-03
Common questions
Is this AI upscaling?
No - this uses high-quality canvas interpolation, not a neural network. It smooths edges well but won't invent new detail the way AI super-resolution models do.
Does it upload my image?
No - everything runs locally.
How is this different from the AI Image Upscaler?
This tool uses fast canvas interpolation with no size limits. The AI Image Upscaler runs a Swin2SR neural network for sharper detail but caps input at 10 MB and 1024 px.
Will 4x always look good?
Interpolation smooths pixels but can't recover detail that isn't in the source. Very heavy enlargements from small originals will look softer.