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TinyPicTools
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Image Resizing Tools

Change the pixel dimensions of an image properly — with multi-step downsampling that keeps fine detail intact instead of aliasing it away.

Images are processed on your device and never uploaded.

Resize Image Resize photos to any width and height in your browser. Lock the aspect ratio, choose fit/fill/stretch, and download instantly. No upload. Resize Image to 600×600 Make any photo exactly 600×600 pixels in your browser. Smart centre crop keeps the subject in frame. No upload required. Resize Image to 512×512 Convert any image to exactly 512×512 pixels in your browser. Ideal for app icons, avatars and dataset inputs. Nothing is uploaded. Resize Image to 1080×1080 Resize photos to 1080×1080 pixels for social posts, entirely in your browser. Centre crop or fit with a background colour. Free. Resize Image by Percentage Scale images by percentage instead of pixels. Keeps the aspect ratio perfectly. Batch friendly, browser-based, free. Change Image DPI Set the DPI of a JPG or PNG, or resize for a physical print size. Explains what DPI does and does not change. Browser-based and free.

Pick the right tool

  • Resize Image — type any width and height, with an aspect-ratio lock and fit/fill/stretch modes.
  • Fixed sizes — 600×600, 512×512 and 1080×1080 in a single tap for the dimensions people ask for most.
  • By percentage — scale a whole batch by the same factor without worrying about individual dimensions.
  • Change DPI — set the print density, or work backwards from a physical size in inches to the pixels you need.

Why resampling quality matters

Shrinking an 8000-pixel image to 800 in one step makes the browser sample roughly one pixel in a hundred, which produces moiré on fabric and jagged edges on text. Stepping down in halves and finishing with a high-quality pass means every source pixel contributes to the result.

Aspect ratio, transparency and orientation

All three are preserved. EXIF rotation is applied before resizing so photos stay upright, and the alpha channel survives as long as the output format has one.