Crop image online, free and private.

Most online croppers ask you to upload your photo first. That means a copy of your passport picture, a family photo or a screenshot of your banking app sits on somebody else’s server, at least for a while. Real Crop Image is an online crop image tool that works the other way round. The page loads once, and after that every crop happens on your own device, inside the browser tab. Nothing is sent anywhere, which is also why it feels fast: there is no upload bar and no waiting for a server to hand the file back.

It is free in the plain sense, too. No account, no watermark in the corner, no “export in HD” upsell. You open a photo, crop the image, and download it.

Circle crop image for profile pictures

Instagram, LinkedIn, X, WhatsApp, Slack and Zoom all show your avatar as a circle. If you upload a square and let the app round it, the corners get trimmed and you lose control of what stays in frame. When you circle crop the image online yourself, you see the exact circular result before it goes live.

To crop an image into a circle, pick the Circle shape. The box locks to 1:1, so it can’t drift into an oval. Drag to put the face in the middle, zoom in with the slider or a pinch, and watch the preview in the sidebar. Save as PNG or WebP and everything outside the circle stays transparent, which is what you want for logos, stickers and slides. If a site won’t accept transparency, switch to JPG and choose a background colour; white is the safe default. Rounded gives you soft corners instead of a fully round crop, and Freehand lets you trace any outline by hand.

Crop image to passport size

Passport and visa photos are where a sloppy crop costs real time, because a rejected photo usually means another appointment. The UK, most of Europe and many other countries use 35×45 mm. The US uses 2×2 inches.

Open the Print & ID tab and choose Passport for 35×45 mm, or US passport, which also sets the output to 600×600 pixels, the smallest size the US State Department accepts for digital photos. If you are printing a 35×45 mm photo, type 413 as the output width under Size & background; the height follows at 531, which is 35×45 mm at 300 DPI, the usual print resolution.

One honest caveat: the tool sets the frame, it doesn’t check head size or background colour. Those rules differ by country, so read your issuing authority’s guidance before you submit.

Crop image in pixels

When a form says “upload a 1200×630 image”, close enough isn’t good enough. The Social tab has 14 presets, from an Instagram post at 1080×1080 to a YouTube banner at 2560×1440, and each one sets both the ratio and the exact output size. For anything else, type the ratio into Custom (say 1200 : 630), then enter 1200 as the output width.

Crop box position shows X, Y, width and height in the original photo’s pixels, so you can repeat the exact same crop on another image. Arrow keys nudge the box by one pixel, Shift and an arrow by ten. A quick warning about upscaling: if the output is bigger than the area you selected, the picture gets stretched and looks soft. The sidebar always shows the final dimensions, so you’ll know before you download.

Crop image size in KB

Job portals, exam registrations and government forms often cap photo uploads at 50, 100 or 200 KB. A phone photo is usually 2 to 5 MB, so cropping alone rarely gets you there. The Download button shows an estimated file size that updates as you work, so you can aim for a number instead of guessing:

1. Crop tight first. Less area means fewer pixels to store.
2. Set a smaller output width. A photo that will be shown at thumbnail size doesn’t need 4,000 pixels; 600 is plenty.
3. Switch to JPG or WebP and lower the quality slider until the estimate drops under your limit. Between 60 and 80 usually still looks clean.

PNG is lossless and has no quality setting, so it’s the wrong choice when the file has to be small.

What about smart crop?

Search for “smart crop image” and you’ll mostly find tools where an AI guesses the subject and frames it for you. We chose not to build that, because it would mean sending your photo to a server or loading a heavy model, and the guess is often wrong for anything other than a centred face. Instead, the editor handles the fiddly geometry. Straighten a tilted horizon and it zooms just enough to hide the empty corners. Change the ratio and it fits the largest crop that still sits inside the photo. You decide the framing; the tool does the maths.

Tips for a better crop

• Use the thirds grid inside the crop box. Eyes or a horizon on a line usually look better than dead centre.
• Leave a little space on the side a person is looking or moving towards.
• Straighten before you crop. A 1° tilt is easy to miss on screen and obvious once printed.
• Crop from the original file, not a screenshot or a chat-app copy, which have already been compressed.
• Keep a PNG if you’ll edit again, and export a JPG or WebP for the upload.

Ready? Open the cropper and drop in a photo. It takes about ten seconds.