Resize Images Online
Resize images to exact pixel dimensions or a percentage, with optional aspect-ratio locking.
- Input:
- JPG, PNG, WEBP, AVIF, BMP, GIF
- Output:
- JPG, PNG, WEBP
- Max size:
- 50 MB
- Runs:
- In your browser (no upload)
What the Image Resizer does
Change the pixel dimensions of JPG, PNG, WebP, AVIF, BMP and GIF images, one at a time or up to 20 at once. Resize to exact pixel sizes for social media, email or web pages, or scale by percentage, and download the results individually or as a ZIP.
Options
- Resize by pixel dimensions or by percentage (1–400%).
- Keep aspect ratio fits the image inside the width and height you enter without distortion.
- Output format (same as input, JPG, PNG or WebP) and quality for lossy formats.
Good to know
Animated GIFs are resized as a single still frame here; use the GIF Resizer to keep the animation.
How to use the Image Resizer
- 1
Drag your JPG, PNG, WEBP, AVIF, BMP, GIF file into the upload area, or click it to browse your device.
- 2
Adjust the options to suit your needs — the defaults work well for most files.
- 3
Click “Run Image Resizer” to start processing.
- 4
Preview the result, then download it. Batch results can be downloaded together as a ZIP.
Supported formats
- JPG (JPEG) is a lossy format ideal for photographs. It has no transparency and is supported everywhere. More about the JPEG / JPG format.
- PNG is a lossless format that supports full transparency. Best for screenshots, logos and graphics with sharp edges. More about the PNG format.
- WebP is a modern format from Google supporting lossy and lossless compression plus transparency, typically 25–35% smaller than JPG. More about the WebP format.
- AVIF is a next-generation format based on the AV1 codec, offering excellent compression and HDR support. More about the AVIF format.
- BMP is an uncompressed Windows bitmap format. Files are large and rarely needed on the web.
- GIF supports simple animation and up to 256 colors per frame. It is universally supported but produces large files. More about the GIF format.
Frequently asked questions
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