Resize an image without a watermark
A watermark on your own photo is a ransom note. Skip the sites that hold images hostage.
GigAI's Image Resizer never watermarks anything - free means free. Resizing uses Lanczos resampling in your browser (4000×3000 → 1600×1200 took 3.1 seconds in our benchmark), the image never uploads, and the output is yours with no logo, overlay or account.
3 tools for this
Each one is free, private and runs in your browser. No sign-up, no watermark.
Image Resizer
Resize any image to exact pixel dimensions with an optional aspect-ratio lock and ready-made social presets, free and fully in your browser.
Crop Image
Cut an image down to the exact part you want. Drag a crop box, snap to a ratio like 1:1 or 16:9, and export the trimmed area: free, private, in your browser.
Image Compressor
Shrink JPG, PNG and WebP images without a visible quality drop. Set the quality yourself, or compress to an exact target size like 100 KB. Free, entirely in your browser.
How to fix it
Follow these steps and you'll have it sorted in a couple of minutes.
- 1
Drop the image
JPG, PNG or WebP - it loads locally, nothing is sent anywhere.
- 2
Set exact pixels
Type dimensions or use the aspect-ratio lock; Lanczos resampling keeps edges clean.
- 3
Download, unmarked
The file is yours. No corner logo, no 'upgrade to remove'.
- Paying to remove a watermark a free tool added - that's the business model, not a technical necessity.
- Resizing up expecting detail: enlarging can't create pixels; use the upscaler's neural model when you must go bigger.
Frequently asked questions
More problems we solve
Ran into one of these too? Here's the fix.
- My image file is too largePhone photos are often 3–8MB. Compress (and if needed resize) to hit a 100KB or 50KB upload limit while still looking clean.
- What size should my image be for Instagram?Uploading the wrong ratio means Instagram crops your subject or squashes it. Match the pixels below and it stays sharp and framed.
- Convert HEIC to JPG offline, without the internetOn a plane with a folder of iPhone photos the form won't take? This keeps working.
Keep exploring
Problems we solve
Definitions
From the blog
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Common tasks
Ready? Start with Image Resizer
Free, private and instant: everything runs in your browser.