LocalPicLab
LocalPicLabAICrop & Remove Background

Crop & Remove Background

No fees No server upload No sign-up required
Remove backgroundWhite backgroundHigh quality (WebGPU)Crop + remove background
100% local processing
Drag & drop photos to auto-frame and cut out

JPG, PNG, WebP only

Tool guide

About Crop & Remove Background

Useful details for choosing formats, browser settings, and privacy-safe local processing.

What Crop & Remove Background does

Crop & Remove Background finds the main subject in a photo and turns everything else transparent, producing a cutout you can drop into any design.

The segmentation model runs locally in your browser through WebAssembly, so the photo is never uploaded and the result stays private on your device.

  • Best for: Amazon and Etsy main images, Shopify square thumbnails, Instagram and TikTok posts, YouTube thumbnails
  • Input: JPG, PNG, WebP, and browser-supported images
  • Output: transparent PNG or WebP

Settings and output control

Choose the background treatment — transparent, white, or a custom color — and the export format for the queue.

The edge control tightens the alpha matte when a cutout looks soft. Smooth gradients are kept for hair and fur; a firmer setting cleans up hard-edged products.

  • Files stay on this device by default
  • Batch export is available after processing
  • Model runs on this device after a one-time download

Browser support and practical limits

Background removal uses a small ONNX segmentation model executed by onnxruntime-web with WebAssembly, so the browser does the work instead of a server.

The first run downloads the model and the inference runtime once. After that they are cached, and processing stays on this device. Desktop browsers handle batches best because mobile browsers have less memory.

  • Desktop batch: up to 50 images
  • Max image size: 8192 x 4096 px each
  • Mobile: smaller batches recommended
How it works

Use Crop & Remove Background in four steps

1

Add photos

Choose files from your device. The tool keeps the workflow inside your browser.

2

Pick a preset size or drag a crop box

Use the preset settings or adjust format, quality, and target size.

3

Auto-frame and remove the background on device

Run the browser processing queue and review each file result as it finishes.

4

Download single files or a ZIP

Download individual files or a ZIP archive when the batch is complete.

Use cases

Built for specific upload limits

Amazon and Etsy main images

Amazon and Etsy main images often comes with size, format, or privacy constraints. This tool gives you a local browser workflow before uploading anywhere else.

Shopify square thumbnails

Shopify square thumbnails often comes with size, format, or privacy constraints. This tool gives you a local browser workflow before uploading anywhere else.

Instagram and TikTok posts

Instagram and TikTok posts often comes with size, format, or privacy constraints. This tool gives you a local browser workflow before uploading anywhere else.

YouTube thumbnails

YouTube thumbnails often comes with size, format, or privacy constraints. This tool gives you a local browser workflow before uploading anywhere else.

Limits

Format and browser limits

Supported formats

Background removal downloads a small ONNX model once, then runs entirely in your browser. Photos are never uploaded.

Input formatsJPG, PNG, WebP, and browser-supported image formats
Output formatsTransparent PNG or WebP
Desktop batchUp to 50 images · max 8192 x 4096 px each
Mobile batchSmaller batches recommended
ProcessingLocal ONNX inference in the browser (WebAssembly)
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FAQ

Common questions

How is the automatic crop decided?

The tool runs a quick subject-detection pass, finds the bounding box of the subject, then frames the crop around that box using the aspect ratio and the padding you choose. The subject ends up centered instead of the photo being blindly center-cropped.

What does the padding slider change?

It sets how much of the frame the subject fills. 85% is a good starting point for marketplace images; 95% is a tight crop, while 60% leaves more breathing room.

Can I crop manually instead?

Yes. Switch to Free crop and drag the box on the preview, or resize it with the handles. The background is then removed only inside that box, which keeps the cutout edges sharp.

Why is the background removed after cropping?

The segmentation model works at a fixed input size. Cropping first means the subject fills that input, so edges stay sharp. Doing it the other way around would sample a small part of a low-resolution matte and blur the outline.

Are my photos uploaded?

No. The model is downloaded once and runs inside your browser, and every crop and cutout happens on your device. Image data never leaves it.

What are the output filenames?

Each result keeps its original filename with the extension matching the chosen format, for example product-01.jpg becomes product-01.png. Download single files or the whole batch as a ZIP.