Images

Visual image comparison

Compare two local images with an accessible slider, without distorting them.

Two static JPEG/PNG/WebP images, up to 5 MiB each, 8 megapixels and 4096 px per side. EXIF orientation is applied. Both images are centered at the same scale without stretching or cropping; the shared canvas is limited to 800 × 600 px.

Images to compare

Choose your input to begin.

What this tool does

Overlay two normalized views to inspect changes with a slider. Both images are centered at the same scale while preserving orientation and aspect ratio.

How to use it

  1. Select local Before and After images.
  2. Process them and review each image’s dimensions.
  3. Drag the slider or use arrows, Home and End on a keyboard.

Verifiable example

Input
Before is 80 × 60 px and After is 40 × 30 px.
Expected result
A shared 80 × 60 canvas: the second image is centered without upscaling or distortion; 0% shows After and 100% shows Before.

Limitations to review

  • Two static JPEG/PNG/WebP files; up to 5 MiB, 8 megapixels and 4096 px per file. Shared view up to 800 × 600.
  • No automatic scene alignment, pixel-difference calculation or equality certification. Cancellation is cooperative: native decoding may finish before releasing resources.

Read the full tutorial

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Browse all guides. Local processing: the page downloads HTTP resources but does not send files or input data to a server for these functions.