Upload your image
Choose an image from your device. It stays in your browser.
Resize Image
Change image width and height precisely, with optional aspect-ratio locking.
Your files are processed locally in your browser and never uploaded.
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How it works
Choose your settings
Adjust the available options for the result you need.
Resize and download
Process the file instantly and save the result.
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Why use OneTools
Private by design
Your image is processed locally and never uploaded.
Fast and free
No account, queue, or server upload is required.
Works everywhere
Use it on modern desktop and mobile browsers.
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Popular use cases
- Prepare images for websites and social media
- Reduce storage or sharing friction
- Create a compatible image format
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Frequently asked questions
Is this tool free?
Yes. This browser-based tool is free and does not require an account.
Are my images uploaded?
No. Processing happens locally in your browser.
Does quality change?
Lossy formats may change image quality depending on the selected setting.
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