Free Batch Image Resizer, Interactive Cropper & Bulk Compressor
Resize dimensions, crop to custom aspect ratios, and bulk compress multiple images directly in your browser. 100% private, free, no uploads, and no accounts required.
Key Features
- Simultaneous multi-image resizing without uploading to external servers
- Exact pixel dimension controls with aspect ratio lock to prevent distortion
- Percentage-based scaling (10% to 200%) and instant dimension presets
- Interactive crop bounds with 1:1, 4:3, 16:9, 9:16 and 3:2 aspect ratios
- Multi-format lossy and lossless compression in WebP, JPG, and PNG
- Real-time before-and-after byte size calculations and space-saved analytics
Supported Formats
JPG, JPEG, PNG, WebP, AVIF, BMP, GIF, TIFF, SVG, HEIC, PSD, QOI, Camera RAW
How to Use
- Import Your Photos: Drag and drop your images or select them from your device into the workstation.
- Select Dimensions or Presets: Choose exact pixel dimensions, percentage scale, or standard social/web presets.
- Fine-Tune Quality & Crop: Set your preferred aspect ratio crop and adjust the compression slider.
- Export Individually or as ZIP: Download your optimized files instantly or save the entire batch in a single archive.
Frequently Asked Questions
Does resizing or compressing my images upload them to a server?
No. All image resizing, cropping, and compression happens 100% locally inside your browser memory using HTML5 Canvas and WebAssembly. Your photos never leave your device.
How many images can I resize at the same time?
You can batch process dozens or even hundreds of images at once, limited only by your device memory. Imagic processes files efficiently in manageable chunks.
Which format gives the best compression without losing visible quality?
WebP typically provides 25% to 35% smaller file sizes than traditional JPEG at equivalent visual quality while supporting full alpha transparency.