AIAZHImage Resizer & Converter
Resize image dimensions by width and height pixels. Change image file types securely in your browser — no server upload required.
How To Use
- Upload your image without sending it to any server — click the upload area or drag and drop your file. No server upload required, everything stays in your browser.
- Set custom width and height values in pixels, or enable aspect ratio lock to scale proportionally. The preview updates in real-time as you type.
- Choose your output format — select JPEG for smaller files, PNG for transparency, or WebP for modern compression with adjustable quality.
- Preview your resized image in the live preview — see exactly how it will look before downloading.
- Download your resized image — keep it private, nothing leaves your device. Your original image is never modified and no data is sent to any server.
Frequently Asked Questions
How to resize image online free without signup?
Upload your image to our free online resizer. Enter custom width and height values in pixels, choose your output format, and click Download. No signup, no watermark, completely free — all processing happens in your browser using the Canvas API.
Does the aspect ratio lock work automatically?
Yes. When aspect ratio lock is enabled, changing either width or height automatically adjusts the other dimension to maintain the original proportions of your image.
Is my image data kept private during resize?
Yes. All resizing happens locally in your browser using the Canvas API. Your images are never uploaded to any server. Close the tab and everything is gone.
What output formats are supported?
You can choose from JPEG, PNG, or WebP output formats with an adjustable quality slider, allowing you to convert between formats during the resize process.
How precise is the resize operation?
The tool uses the Canvas API to resize images to your exact pixel dimensions. Combined with the quality slider, you get precise control over both dimensions and output file size.
Custom Dimensions
Set exact pixel dimensions for width and height. Whether you need thumbnails, banners, or social media graphics — resize to any size instantly.
100% Private & Secure
All resizing happens directly in your browser using the Canvas API. Your images are never uploaded to any server. No watermarks, no signup.
How to Resize Image Online Free Without Software
Resize image online free with our browser-based image resizer. Upload your image, enter custom width and height values in pixels, and download your resized image instantly. Whether you need to shrink a photo for email, create a banner for social media, or change image dimensions for web design, our tool handles it all without any software installation. No signup required — just upload, resize, and download.
Change Image Dimensions With No Watermark
Unlike many free resizers that add watermarks, our tool produces clean output with no branding. Change image dimensions by exact pixels or scale proportionally with the aspect ratio lock. Convert between JPEG, PNG, and WebP formats during resize with the adjustable quality slider. The resized image retains the visual quality of the original while matching your exact dimension requirements.
100% Private — No Server Upload
All processing happens entirely in your browser using the HTML5 Canvas API. Your images are never uploaded to any server, ensuring complete privacy and security. No file size limits, no watermarks, and no registration required. Simply select your image, enter your desired dimensions, and download your resized image instantly. Works offline — no internet connection needed.