Tool · Aspect Crop

Batch crop images to a single aspect.

Drop your images, pick a target ratio, download the cropped set. Everything runs locally — useful before sequencing photos into a video.

Drop images here

JPG, PNG, WebP — processed in your browser, never uploaded.

Drop images anywhere on this page or click below.

Features

Small tool, sharp focus.

Batch any number of images

Drop a folder of photos and crop every one to the same aspect in a single pass. Useful when you have a mixed-orientation set ready to sequence into a video.

Six standard aspect ratios

16:9, 9:16, 1:1, 4:5, 3:2 and 2:3 — covering film, vertical social, the Instagram feed, print, and DSLR-native frames.

Cover or contain

Crop to fill the target aspect, or letterbox with a color of your choice to preserve the original frame entirely.

Nine-point alignment

When cropping to cover, pick which part of the original frame survives — center, top-left, bottom, right, or any of nine positions.

Runs locally

Encoded in your browser with the Canvas API. Your images never reach a server, so the tool is fast and your originals stay private.

Free, no signup

No account, no upload limits, no watermark. Use it as much as you want.

How it works

Three steps, then the editor.

01

Drop a folder

Drag images onto the page, or click upload. JPG, PNG, and WebP work; everything is read locally.
02

Pick an aspect and a mode

Choose a target ratio and decide whether to crop (cover) or letterbox (contain). The grid of previews updates instantly.
03

Download the set

Save individual images or grab the whole batch with one click. Then bring them into shotseq to sequence them into a video.

When to use it

A few common workflows.

Before sequencing photos into video

Slideshow video looks amateur the moment you mix orientations. Crop everything to one aspect, then assemble.

Resizing for Instagram or TikTok

Convert horizontal camera files into 4:5 for the feed or 9:16 for Reels and Stories without manual cropping.

Building a consistent portfolio

Photographers and designers can normalise a body of work to a single ratio for a clean grid or case study.

Prepping product photos

E-commerce shots need consistent dimensions across the catalogue. Pick a ratio, drop the folder, done.

Specifications

What goes in, what comes out.

Inputs: JPG, PNG, WebP, HEIC (browser-dependent)
Output format: PNG (lossless)
Output sizes: Original, 720, 1080, 1440, 2160 (short edge)
Aspect ratios: 16:9, 9:16, 1:1, 4:5, 3:2, 2:3
Modes: Cover (crop) or Contain (letterbox)
Position presets: 9-point grid for cover mode
Batch size: Limited only by device memory
Privacy: Local processing — no upload

Questions

Frequently asked.

Does Aspect Crop upload my images? −

No. All processing happens in your browser using the Canvas API. The page makes no network request involving your files.

What image formats can I use? +

How is the output quality? +

Can I download all images at once? +

Does the tool preserve EXIF metadata? +

Is there a limit on how many images I can crop? +

Next step

Cropped your set? Sequence it into video.

Once your images share an aspect ratio, drop them into shotseq to assemble the slideshow.

Open shotseq Read: a field guide to aspect ratios