Free AI Smart Crop Tool

Crop one image to every social media size and keep the subject in the frame. No upload, no sign up

Smart Crop an Image

Smart Crop Your Image

Choose an image and the sizes you need, compare the centre crop with the smart crop, then download one crop or all of them as a ZIP

How It Works

100% Private, your images never leave your browser. The subject is found and the image is cropped locally on your device. Nothing is uploaded to our servers.

  • 🔒 100% privacy friendly
  • 🆓 100% free to use
  • ✅ No signup required
  • 👌 Zero watermarks
  • 💻 Files stay on your computer

This tool runs BiRefNet, a state‑of‑the‑art image matting model, running entirely inside your browser. It finds the person or product in your photo, then moves each crop so the subject stays in the frame, with priority on the top of the subject so heads and faces are not cut off.

The first time you use it, the tool downloads the AI model (~76MB) to your browser and caches it, so later runs start instantly. It is the same model as our background remover. After the first run, you can change the sizes as often as you like, and the crops update straight away.

Want to crop images automatically at scale? The Bannerbear API automates it for you. Plug it into your app or no‑code workflow and crop thousands of images on autopilot.

What Is Smart Crop?

Smart crop cuts an image to a new size and keeps the subject in the frame. A normal crop keeps the centre of the image, so a person or a product at the side of the photo can be cut off.

Each platform needs a different shape. A wide photo that looks good on your website can lose the face of the person in it when you crop it to a square or to a tall Story.

This tool makes all of these sizes from one image:

  • Instagram portrait: 1080×1350 (4:5).
  • Story or Reel: 1080×1920 (9:16), for Instagram, TikTok and YouTube Shorts.
  • Square: 1080×1080 (1:1).
  • YouTube thumbnail: 1280×720 (16:9).
  • Open Graph: 1200×630, the image that shows when you share a link.
  • Custom: any width and height up to 4096 px.

How to Auto Crop an Image

You can crop an image to all of your sizes in a few seconds. You do not need to install software or make an account.

  1. Click Choose an image and select a photo on your computer or phone.
  2. Select the sizes you need. All of the preset sizes are selected at the start. Click a size to remove it, or click Custom and type a width and a height.
  3. Click Smart Crop. The first time, the tool downloads the AI model.
  4. Compare the Centre crop and the Smart crop for each size.
  5. Click Download JPG under a smart crop, or click Download All (ZIP) to get every size in one file.

To also remove the background, use the background remover first.

Supported Images and Limits

The tool works with most photos. These are the limits.

ComputeriPhone or iPad
Input formatsJPG, PNG, WEBPJPG, PNG, WEBP
Maximum file size60 MB25 MB
Maximum custom size (width or height)4096 px4096 px
Output formatJPGJPG
  • The crop does not zoom in: each crop is the largest area of the new shape that fits in your photo, the same as the centre crop. Only its position changes.
  • Use a clear subject: the model works best when one person or product is in focus and different in color from the background.
  • No subject, no change: if the tool does not find a clear subject, the smart crop is the same as the centre crop, and the tool tells you.
  • One model for three tools: this tool uses the same AI model as the background remover and the background changer.

Smart Crop Questions

The common questions about smart cropping an image, and their answers

Do you upload my photo?

No. The AI model runs in your browser, and your photo stays on your device. We do not see it, and we do not keep a copy.

Is the smart crop tool free?

Yes. The tool is free, with no watermark, no signup and no limit on the number of images.

What is the difference between a smart crop and a centre crop?

A centre crop always keeps the middle of the image. A smart crop finds the subject first, and moves the crop so that the subject stays in the frame. The tool shows the two crops next to each other for each size, so you can compare them.

Does the tool keep faces in the frame?

Yes. When the subject is taller or wider than the crop, the tool keeps the top of the subject, where the head and face usually are.

Which sizes can I make?

Instagram portrait (1080×1350), Story or Reel (1080×1920), square (1080×1080), YouTube thumbnail (1280×720) and Open Graph (1200×630). Click Custom to make any other size up to 4096 px.

Can I download all of the crops at once?

Yes. Click Download All (ZIP) to get one ZIP file with a JPG for each size that you selected.

Can I crop images automatically with an API?

Yes. The Bannerbear Image API can find the face or the subject in each photo and crop around it. See how to use AI face and subject detection.

Why is the first run slow to start?

The first time, your browser downloads the AI model (about 76 MB). The browser keeps it, so the next image starts immediately. The background remover uses the same model.

Crop Images Automatically with Bannerbear

Do you need to crop hundreds of photos into your designs? The Bannerbear Image API finds the face or the subject in each photo and crops around it, with one API call.

Explore the Image API

This free tool is good for one photo at a time. With Bannerbear, you design a template once, with an image container for the photo. Then you send each photo URL from your app, or from a no-code tool such as Zapier or Make.

Turn on AI face detection for the image container, and Bannerbear crops around the clearest face, the largest face, or the whole group, instead of the centre. Use subject detection for products.

Do you need to do more with your image? Use the background remover to make a transparent PNG, or the AI background changer to put a product on a new background.

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