Social PresetsAspect Lock100% Private
How It Works
1
Upload Image
Drop a JPG, PNG, or WebP image.
2
Choose Size
Set custom dimensions, percentage, or pick a preset.
3
Download
Get your perfectly resized image.
Frequently Asked Questions
What resize modes are available?
Three modes: Custom dimensions (set exact width and height in pixels), Percentage (scale by a percentage of the original size), and Presets (ready-made sizes for Instagram, Facebook, YouTube, LinkedIn, and more).
How does aspect ratio lock work?
When enabled, changing the width automatically adjusts the height (and vice versa) to maintain the original proportions of the image. Disable it to stretch or squash the image to exact dimensions.
Why does this tool use multi-step halving?
When downscaling significantly (e.g., from 4000px to 500px), a single step can produce blurry or aliased results. Multi-step halving iteratively reduces the image by 50% until close to the target size, producing sharper results.
Which presets are available?
Instagram Post (1080x1080), Instagram Story (1080x1920), Facebook Cover (820x312), YouTube Thumbnail (1280x720), Twitter Header (1500x500), LinkedIn Banner (1584x396), HD (1920x1080), and 4K (3840x2160).
Are my images sent to a server?
No. All resizing is done in your browser using the Canvas API. Your images remain on your device.
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