ImageStretcher

Free Image Stretcher

Change width, height, or aspect ratio and download privately — your image never leaves this browser.

Drop an image hereJPEG, PNG or WebP · up to 20 MB · paste also works

  1. 1Upload
  2. 2Adjust
  3. 3Download

01

Stretch an image in three steps

There is no account, upload queue or editor to learn.

1

Upload

Choose, drop or paste a JPEG, PNG or WebP. The browser checks its real format, dimensions and memory needs before opening it.

2

Adjust

Enter exact pixel dimensions or use the scale control. Unlock the ratio to stretch freely, or keep it locked for a natural proportional resize.

3

Download

Preview the geometry, select PNG, JPEG or WebP, then save the finished file. Processing stays on this device.

02

Choose the right kind of change

Stretch freely

Width and height move independently. This is useful when a layout must be filled exactly, but faces, circles and lettering may look wider or taller than the source.

Resize proportionally

The aspect ratio stays fixed while pixel dimensions change. The image keeps its natural shape, though it may not fill a target frame with a different ratio.

03

Private by design, honest about quality

ImageStretcher works locally in the browser. Source images and finished files are not stored, and re-encoding normally removes embedded metadata such as EXIF, GPS, ICC and DPI information. The preview is capped for responsiveness, while the download uses your selected dimensions.

The current safety limits are 20 MB, 16 megapixels and 8,000 pixels on either side. They prevent oversized canvas allocations on low-memory devices. Stretching does not add detail; for a cleaner result, make smaller changes and start with a high-resolution source.

Learn how image stretching works

Common questions

Does ImageStretcher upload my image?

No. The anonymous tool decodes, previews and exports the image in your browser. The image itself is not sent to ImageStretcher, Supabase, analytics or another processing service.

What is the difference between stretching and resizing?

Free stretching changes width and height independently, so the picture can look wider or taller. Proportional resizing keeps the original aspect ratio.

Will stretching improve image quality?

No. Stretching redistributes existing pixels and cannot create missing detail. Large changes can look soft or distorted, so start with the best source image available.

Which image formats are supported?

You can open JPEG, PNG and WebP files and export to any of those formats. PNG preserves transparency; JPEG uses the background color you select.