Resize Image Online Free
Resize your images to exact dimensions or use presets for social media platforms. All processing is done locally — your images stay private.
Drop your image here or click to upload
Supports all common image formats
Original
![Original]()
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Resized
![Resized]()
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How to Use This Tool
- 1 Upload an image from your device.
- 2 Enter custom dimensions, choose a preset, or use the scale slider.
- 3 Toggle the aspect ratio lock to constrain proportions.
- 4 Preview the result and download your resized image.
Frequently Asked Questions
Does this tool upload my images to a server?
No. All resizing is done in your browser using Canvas. Your files never leave your device.
What are the preset sizes for?
Presets match common social media image dimensions — Instagram posts, Twitter headers, Facebook covers, YouTube thumbnails, and LinkedIn banners.
Will resizing affect image quality?
Resizing to smaller dimensions may reduce sharpness. Enlarging beyond original size may cause pixelation. For best results, avoid upscaling.
What is the aspect ratio lock?
When locked, changing width automatically adjusts height to maintain proportions, preventing image distortion.
Is this service free?
Yes, completely free with no registration or limits.