Comparar imágenes
Comparar dos imágenes
Funciona en tu navegador · Sin subidas
La herramienta y las instrucciones de esta página están en inglés por ahora. Funciona igual: todo se ejecuta en tu navegador.
First image (before)
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No image yet
Second image (after)
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No image yet
Drop an image on each box, or paste one with Ctrl+V (it goes into the first empty box). Your images stay on your device.
Tu navegador es demasiado antiguo para esta herramienta. Actualízalo o usa una versión reciente de Chrome, Edge, Firefox o Safari.
- Nada sale de tu dispositivo
- Sin límites de tamaño impuestos por un servidor
- Sin registro, sin marca de agua
- Gratis
How to compare two images
- Choose or drop the first and the second image (or paste them).
- Slide the divider, view them side by side, or switch to Differences.
- Read how many pixels differ, and download the difference picture if you need it.
Uses
- Check what a compressor or converter changed, and whether you can see it.
- Compare design versions, screenshots before and after a change, or two exports.
- Spot retouching between an original and an edited photo.
The numbers
- A pixel counts as changed when one of its color values differs by more than the threshold (0 to 255).
- PSNR (peak signal-to-noise ratio): above about 40 dB differences are very hard to see; below 30 dB they usually show.
- Images of different sizes are compared after scaling the second one to the first one's size.
Preguntas frecuentes
Can it compare PDFs or videos?
Not directly. Save the pages or frames as images first (PDF to JPG, Video Thumbnail Extractor), then compare them here.
Are my images uploaded?
No. Everything happens in your browser, and the page is blocked from uploading anything.