Resize PNG, JPG, WebP, GIF, or BMP images in bulk to custom dimensions, percentages, or SNS presets. 100% free, browser-side, secure, and instant.
Image resizing refers to changing the physical dimensions (width and height in pixels) of an image. It is commonly used to downscale large photos from digital cameras so they load much faster on websites or fit social media posting guidelines.
Scaling down an image reduces the total number of pixels, which technically discards details. However, our tool utilizes high-quality Canvas bi-linear interpolation to ensure that the downsized image remains sharp and crisp. Scaling up (upsampling) an image beyond its original size will naturally make it look blurry.
Different platforms have different requirements. For example, YouTube thumbnails are best at 1280x720 (16:9), X (Twitter) headers at 1500x500 (3:1), and Instagram square posts at 1080x1080 (1:1). Our built-in SNS presets let you select these instantly.
Yes! The tool is completely mobile-responsive. You can select pictures directly from your mobile camera roll or files and resize them on the fly.
No. All processing happens entirely in your browser using the HTML5 Canvas API. Your files never leave your machine, guaranteeing absolute privacy.
PNG uses lossless compression and supports transparency, making it perfect for logos, text graphics, and screenshots. JPG uses lossy compression and does not support transparency, making it ideal for digital photos because it produces much smaller file sizes.
This utility is a high-performance, developer-focused batch image resizing studio. It handles multiple files in parallel directly in the browser, allowing you to bulk-crop, compress, and scale images for web deployment in seconds.