Online Image Cropper & Aspect Ratio Tool

Crop images in browser memory with social media presets and high-resolution export

100% Browser Local Computing: Zero Cloud Upload - Offline Capable

Canvas 純前端裁切 100% Browser Local Computing

Aspect Ratio：

Export Format：

Select Image

Select or drag & drop image here

尚未載入圖片

Pure client-side offline image crop and resize tool with fixed presets (1:1, 16:9, 4:3, 9:16) and free-form cropping.

Frequently Asked Questions

Does cropping reduce original image resolution or quality?

No, cropping samples directly from the raw pixel canvas, preserving full color depth and quality.

Are images uploaded to any server during cropping?

Zero server uploads. All image rendering and manipulation occur locally inside your browser.

WebAssembly-powered local conversion preserving alpha transparency and reducing file sizes

Batch convert JPEG images to next-gen WebP format with custom compression quality

Zero server upload, 100% privacy, custom compression ratio with live preview

Restore Base64 strings to images with high-resolution preview and one-click download

Convert images to Base64 Data URIs with HTML and CSS snippets in browser memory

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