LalabbTools2×
A sensible first trial; twice the width and height
Image Upscaler
Upscale images locally in your browser.
Processed in your browser · No unnecessary upload · Uses your device resourcesDeterministic local processing
Safe Canvas fallback is active on this browser.01 · Input
Upscale locally
Larger pixels do not guarantee that missing original detail has been restored. Check the result at intended print size.
No AI model is downloaded in this version. High-quality tiled resampling remains available on every supported browser.
Drop an image, or choose one
Your local result will appear here.
Larger pixels do not guarantee that missing original detail has been restored. Check the result at intended print size.Photo
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Support LalabbEnlarge an image, then judge the result for its intended use
Upscale images locally in your browser.
4×
Four times the width and height; more memory and a larger output
8×
Use only when the larger pixel dimensions are necessary
How to use it
Prepare the files, choose the settings, and check the result
Settings and reference
What the options mean
2×A sensible first trial; twice the width and height
4×Four times the width and height; more memory and a larger output
8×Use only when the larger pixel dimensions are necessary
ComparisonInspect the original and output at full size
Print useCheck output pixels against physical size and target DPI
Small photographs
Start with the smallest useful scale and compare faces, hair, and detailed textures. Enlargement cannot guarantee new detail.
Illustrations and coloring pages
Check thin strokes, corners, and white margins after enlargement. Keep a copy of the original artwork.
Text inside images
Inspect letter shapes at full size. Enlarging a screenshot does not turn raster letters into vector text.
Print preparation
Use the DPI checker or Print-Ready Upscaler when the target is a specific physical print size.
Scope and limitations
Know what this tool does and does not do
1This is local browser processing, not a server-based AI enhancement service.
2Larger scale factors increase processing time and memory use.
3The tool creates larger pixel dimensions; it does not guarantee restored focus or print acceptance.
Before you finish
Open the downloaded result and check it
Keep your originals until the new files meet your needs.
- 8×: Use only when the larger pixel dimensions are necessary
- Comparison: Inspect the original and output at full size
- Print use: Check output pixels against physical size and target DPI
Help and troubleshooting
Frequently asked questions
Should I choose the largest scale?
No. Choose the smallest scale that provides the pixels you need, then inspect the result.
What should I compare?
Look at faces, text, thin lines, edges, and repeated textures at actual pixel size.
Continue your workflow
Related tools
Quick questions
Which files can I use with Image Upscaler?
Supported files: JPG/JPEG, PNG, WebP.
What result does Image Upscaler create?
Output: PNG, JPG/JPEG.
Should I choose the largest scale?
No. Choose the smallest scale that provides the pixels you need, then inspect the result.
Are my files uploaded?
No. The tool processes selected files in this browser on your device.
How this tool works
Choose JPG/JPEG, PNG, WebP; Upscale images locally in your browser. Download PNG, JPG/JPEG. For a related task, try Image Resizer / DPI / Print Checker.