Crop Images Online

Crop images to the exact shape you need

Cropping reframes a photo by keeping the part that matters and trimming the rest. Whether you're squaring a portrait for an avatar, cutting a wide shot down to a YouTube thumbnail, or fitting a banner into a fixed slot, this cropper gives you a draggable crop box, built-in platform presets, and precise pixel controls — all in your browser.

How cropping works

Drag the crop rectangle over your image, or type exact X, Y, width, and height values for pixel-perfect framing. When you click Apply, only the pixels inside the box are drawn to a new canvas at full resolution and exported — no scaling, no quality loss within the kept region. A live preview shows the result before you download.

Built-in social media presets

• Square 1:1 and portrait 4:5 — Instagram and Facebook feed posts.
• Story / Snapchat 9:16 — Snapchat snaps and stories, Instagram and Facebook Stories, Reels, TikTok, and YouTube Shorts. See our step-by-step guide to cropping photos for Snapchat.
• 16:9 and 1280×720 — YouTube videos and thumbnails, Twitter/X cards.
• 820×312 — Facebook page cover banners.

Composition: where to put the crop box

Cropping is the cheapest way to fix a weak composition, because you are choosing the frame after the shot instead of before it. A few principles do most of the work:

• Rule of thirds. Imagine the frame divided into a 3×3 grid and place your subject, or a strong line like a horizon, along one of those lines rather than dead centre. The result feels more dynamic and gives the eye somewhere to travel. Centre framing is the deliberate exception for symmetry and formal portraits.
• Leading room. If a subject is looking or moving toward one side, leave more space on that side so they have somewhere to look or go; cropping tight against the direction of gaze feels claustrophobic.
• Cut at the right place. On people, avoid slicing through joints — knees, elbows, wrists, ankles. A crop that lands mid-thigh or mid-forearm reads as intentional; one that clips exactly at the knee reads as an accident.

Choosing an aspect ratio

The ratio is the shape; the pixel count is the resolution. Picking the ratio first and dragging the box second is the workflow that keeps you out of trouble. As a worked example, a 4032×3024 phone photo (a 4:3 frame) cropped to the 1:1 square preset has to drop 1008 pixels of width, leaving a 3024×3024 square — so decide before you shoot whether the wasted edges hold anything you need. The common destinations:

• 1:1 — avatars and classic feed posts; forces you to commit to a single focal point.
• 4:5 — the tallest still allowed in most feeds, so it claims the most vertical screen space.
• 9:16 — full-screen vertical for Stories, Reels, TikTok, and Snapchat.
• 16:9 — video frames, slides, and wide hero banners.
• 3:2 — the native ratio of most DSLRs and the standard for printed photographs.

Crop tight or crop loose?

Resolution sets the floor. Because cropping only ever removes pixels, the part you keep stays pixel-perfect — but if you later need a larger output than the kept region provides, you are back to upscaling and its softness. So if a crop will be enlarged or printed, draw it more generously than feels necessary; if it is headed straight to a small web slot, crop as tight as the composition allows to put every remaining pixel to work.

Cropped privately in your browser

Because the crop is just a region of a canvas drawn inside this page, you can reframe a confidential document scan or an unreleased product shot without it ever leaving the laptop in front of you.

Related image tools

• Image Resizer — once the shape is right, lock in the exact output pixels.
• Add Watermark — sign the reframed shot before you publish it.
• Background Remover — isolate the subject you just framed onto transparency.
• Image Compressor — fewer pixels already, now fewer bytes for the web.