$ toolfu run image-resizer
Image Resizer — Free Online
Free online image resizer. Resize images to exact pixel dimensions in your browser. Set width and height, maintain aspect ratio, choose output format — no upload required.
all processing runs in your browser
image-resizer
input > drop image
$ drop an image here or click to browse
PNG, JPG, GIF, WebP, BMP
or paste from clipboard (⌘V / Ctrl+V)
Resize Images Online — Free Image Resizer
This free online image resizer lets you resize images to exact pixel dimensions directly in your browser. Upload a PNG, JPG, WebP, or any other image format, set your target width and height in pixels, and download the resized result instantly. This image resize tool handles all processing locally using the Canvas API — your images never leave your device.
Free image resizer features
- Resize images to exact pixel dimensions with aspect ratio lock
- Output as PNG (lossless) or JPEG (with adjustable quality)
- Preview the resized image before downloading
- Free image resizer — no watermarks, no sign-up, no upload
Common image resizing use cases
- Resize images for social media — profile photos, cover images, thumbnails
- Resize photos in pixels for website uploads and documentation
- Bulk image resizer for preparing multiple images at specific dimensions
- Resize pictures online to meet platform upload size requirements
$ cat FAQ.md
What image formats can I resize?▶
You can resize any image format your browser supports: PNG, JPG/JPEG, GIF, WebP, BMP, and more. The output can be saved as PNG or JPEG.
Is my image uploaded to a server?▶
No. The resizing is done entirely in your browser using the Canvas API. Your image never leaves your device.
What does the quality slider do?▶
The quality slider (available for JPEG output) controls the compression level. Higher quality means larger file size but better image fidelity. 85% is a good default for most use cases.
Does maintaining aspect ratio lock both dimensions?▶
When the aspect ratio checkbox is enabled, changing the width automatically updates the height (and vice versa) to maintain the original proportions.