Image Resizer
Image Resizer
Resize image dimensions quickly with aspect-ratio controls and export-ready output.
Configuration
Resized Image
About The Image Resizer
The Image Resizer creates a new image at smaller or larger pixel dimensions. It is meant for quick browser-based resizing before uploading to a website, attaching to a message, preparing a thumbnail, or matching a required image size.
Processing happens locally in your browser. The original file is not changed; the resized result is exported as a new downloadable image.
How to Resize Images Online
- Choose an image file from your device.
- Enter the target width and height in pixels.
- Keep aspect ratio enabled when the image should fit inside those dimensions without distortion.
- Open more options to choose output format, quality, or JPEG background color.
- Resize the image, review the output dimensions, then download the result.
Choosing Options Correctly
What does keep aspect ratio do?
It fits the source image inside the width and height you entered. For example, a 640x360 image resized inside 320x200 becomes 320x180 to avoid distortion.
Output format:
Use same-as-source for simple resizing, JPEG for photos, WEBP for compact web output, and PNG when transparency or lossless output matters.
Common Use Cases
- Reducing large screenshots before sending them in email or chat.
- Creating thumbnails or web-ready image dimensions.
- Preparing images for systems with strict pixel requirements.
Quick FAQ
Can this enlarge images?
Yes, but enlarging cannot add real detail. Upscaled images may look soft or pixelated.
Will my original file be changed?
No. The resized image is exported as a new file while the original stays untouched.
Is the image uploaded?
No. Resizing is handled in the browser with the file you select locally.
How do I get the best result?
Keep the aspect ratio locked unless you intentionally want stretching, and resize from the highest-quality source you have.
Related Tools
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Compress multiple images together and download optimized output as files or ZIP.