Resize images in your browser
Free image resizer. Set exact width or height in pixels, keep aspect ratio, no upload.
Tip: leave one dimension at 0 to auto-calculate from the other while keeping aspect ratio.
How to use the image resizer
- 1
Drop your images
Drag and drop one or more images into the box. Or click to browse.
- 2
Set width or height
Type the target width and/or height in pixels. Leave one at 0 to auto-keep the aspect ratio.
- 3
Pick format and quality
Choose JPG, PNG, or WebP for output. Adjust quality if needed.
- 4
Download
Each resized image is ready to download instantly. Files never leave your browser.
Why resize images?
A 12-megapixel phone photo is around 4000 by 3000 pixels and 3-5 MB. That is overkill for a profile picture, a school form upload, or an email attachment. Resizing the image to a smaller width drops the file size dramatically while keeping it sharp on screens that do not need the full resolution.
Fileoholic's resizer uses the browser's built-in Canvas API to scale images locally. No server, no upload, no waiting for round-trips. Drop the file, set the target dimensions, download. Aspect ratio is preserved by default so your photos do not look stretched or squashed.
Your files never leave your browser.
All processing runs locally on your device. No uploads, no tracking of file content.
FAQ
Will the aspect ratio be preserved?
Yes by default. In Fit mode, set only width or only height (leave the other at 0) and the missing dimension is calculated. In Exact mode, both values are used as given.
Can I resize multiple images at once?
Yes. Drop or select as many as you like. Each is processed and downloaded separately.
What is the maximum file size?
30 MB per file. Mobile browsers may struggle with larger images.
Are my images uploaded anywhere?
No. Resizing happens entirely in your browser using the Canvas API. Nothing leaves your device.
Why does my resized image look slightly different?
JPG and WebP use lossy compression. Lower the quality slider for smaller files, raise it for sharper output. PNG is lossless.
Need bulk processing or AI-powered resizing?
For desktop batch processing or AI upscaling, see Adobe Photoshop or Canva Pro. Disclosure: contains affiliate links. We may earn a commission at no extra cost to you.
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Last updated: 2026-05-08