Browser tool

Image Cropper

Crop photos, mockups, and screenshots with PolyImg’s browser-based image cropping tool—no uploads, just pixel-perfect control for ecommerce listings, Amazon storefronts, Etsy previews, and “crop image for social media” tasks.

Capabilities

Adaptive cropping for every channel

Pixel-precise cropping

Drag handles, type exact dimensions, or snap to any aspect ratio. Canvas-powered previews reflect the final export instantly.

Preset ratios & templates

Save presets for 1:1, 3:2, 9:16, hero banners, ecommerce thumbnails, or custom social sizes and reuse them across projects.

Browser-based image cropper

Every edit stays on your device via Canvas and OffscreenCanvas—ideal for cropping confidential shoots or unannounced products.

WebAssembly adjustments mirror production pipelines, so what you crop in-browser is exactly what ships to your CMS or storefront.
Workflow

Three steps to perfectly cropped images

  1. 1Upload or drop one or more images—JPG, PNG, HEIC, and SVG files render instantly in the crop workspace.
  2. 2Select a preset or type exact dimensions, adjust focal points, and preview how the crop looks across breakpoints.
  3. 3Export optimized crops in bulk or copy them directly into your CMS/design tool with one click.
  • Syncs crop boxes across multiple artboards so product shots align perfectly across storefront thumbnails, PDP heroes, and ads.
  • Save reusable crop templates to IndexedDB and share them with teammates for consistent branding.
Quality & privacy

Keep every pixel sharp—and private

PolyImg’s online image cropper uses GPU-accelerated Canvas rendering, so edges stay crisp for UI mockups, app store screenshots, and social cutdowns.

Because everything runs in-browser, unreleased features, ID documents, or medical imagery never touches a server—perfect for privacy-first workflows.

FAQs

Common questions about PolyImg’s browser-based image cropper. Need automation or custom presets? Reach out.