Why are common aspect ratios pre-set?

1:1 for Instagram and most avatar uploads; 4:3 for prints and older displays; 16:9 for video thumbnails and modern screens; 9:16 for vertical stories and TikTok-style content. The 'free' mode lets you crop to any rectangle when none of the presets fit.

What format is the output?

Same format as the input (PNG stays PNG, JPG stays JPG). To change formats too, run the cropped output through the image-converter tool.

Does it upscale or just trim?

Just trim - the pixels inside the selection are kept, everything outside is dropped. The cropped image's dimensions equal the selection's dimensions. To upscale afterwards, send it through the image-resizer.

Bild-Zuschneider

Bilder durch Ziehen einer Auswahl zuschneiden - frei oder mit festen Seitenverhältnissen (1:1, 4:3, 16:9, 9:16).

Läuft in deinem Browser

Bild ablegen und Auswahlrechteck direkt in der Vorschau ziehen. Aspect-Ratio-Presets (frei, 1:1 für Instagram, 4:3 für Print, 16:9 für Video, 9:16 für Stories) sperren die Auswahl. Zugeschnittene Kopie im Originalformat herunterladen; nichts wird hochgeladen.

Bild hier ablegen oder klicken zum Auswählen

PNG, JPG, WebP, AVIF, GIF, BMP

So funktioniert's

Drop an image
Drag and drop or click the dropzone to pick a file.
Pick an aspect ratio
Free, 1:1, 4:3, 16:9 or 9:16. The selection rectangle locks to the chosen shape.
Drag the selection
Click-and-drag on the preview to draw the crop rectangle. Drag inside it to move.
Download
Hit Download to get the cropped image. The original is untouched.

Was ist das?

An image cropper trims an image to a rectangular subregion - you keep what's inside the selection, everything outside is discarded. The output image's pixel dimensions equal the selection's. Combined with an aspect-ratio lock, this becomes the fastest way to fit a photo to a layout slot (avatar, OG image, thumbnail) without a heavyweight editor.

Wann verwenden

Preparing a square avatar from a wider photo, fitting a hero image to a specific design slot, cutting a busy photo down to its subject, recovering a quote from a screenshot, or splitting a multi-panel image into its parts. Anywhere you'd otherwise open Photoshop or Preview just to make a rectangular cut.

Häufige Fehler

Forgetting to lock an aspect ratio and ending up with a slightly-off slot (1.78 instead of exactly 16:9). Cropping too tight and losing context. And cropping a screenshot at the wrong DPI scale - if the source is a 2x Retina capture, your selection should be measured in source pixels, not the rendered preview pixels.

FAQ

Why are common aspect ratios pre-set?: 1:1 for Instagram and most avatar uploads; 4:3 for prints and older displays; 16:9 for video thumbnails and modern screens; 9:16 for vertical stories and TikTok-style content. The 'free' mode lets you crop to any rectangle when none of the presets fit.
What format is the output?: Same format as the input (PNG stays PNG, JPG stays JPG). To change formats too, run the cropped output through the image-converter tool.
Does it upscale or just trim?: Just trim - the pixels inside the selection are kept, everything outside is dropped. The cropped image's dimensions equal the selection's dimensions. To upscale afterwards, send it through the image-resizer.

Bildgrösse ändern

Bilder im Browser in Pixel oder Prozent skalieren - kein Upload.

Bildkonverter

PNG, JPG, WebP und AVIF im Browser konvertieren - kein Upload, keine Anmeldung.

Bildkompressor

JPG- und WebP-Dateigrösse mit Qualitäts-Slider und Vorher/Nachher-Vorschau verkleinern.