Upscale Image 2× — Bilinear, Honest
Enlarge an image to two, three or four times its dimensions using high-quality canvas interpolation. This creates a larger pixel copy rather than applying an AI model to reconstruct missing detail.
- Runs in your browser
- Nothing is uploaded
- No signup; device limits apply
How to use this tool
Choose the image and scale. Both dimensions grow, so four-times scaling creates sixteen times as many pixels; consider memory use and the actual required output size before enlarging a large source.
Results and examples
JPEG inputs produce JPEG, while other inputs produce PNG. Inspect enlarged edges and lettering without equating more pixels with recovered detail; unnecessary enlargement can mainly increase the file size.
Worked example
Enlarge a 600×400 PNG at 2× to produce 1200×800 PNG pixels. A 400×300 JPEG at 3× produces a 1200×900 JPEG; inspect enlarged lettering and noise.
Limitations
- This is browser interpolation, not an AI super-resolution model restoring missing detail.
- A 4× factor creates sixteen times the pixels; JPEG inputs stay JPEG and other formats output PNG.
Fields
| Field | Guidance and constraints |
|---|---|
| Enlarge by | 2× / 3× / 4× |
Data handling
Processing stays in the current browser tab; the site does not upload tool input for the calculation itself.
Sources
Frequently asked questions
Is output always PNG?
No. An image/jpeg source is encoded as JPEG.
Does it accurately recover blurry letters?
Interpolation does not recognise or reconstruct missing text content.
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