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Resize Image

Resize JPG, PNG, WebP and GIF images to exact pixels, by percentage, or to common social media presets. Runs 100% in your browser — no upload.

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Drop your images here
JPG · PNG · WebP · GIF · BMP · Processed locally — nothing uploaded
⚙️ Resize Settings
💡 Leave one field empty to auto-calculate from aspect ratio.
FAQ

Common Questions

What image formats are supported? +
You can upload JPG, PNG, WebP, GIF, BMP, and most other common image formats. Output can be saved as JPG, PNG, or WebP.
Does resizing preserve aspect ratio? +
In Pixel mode, the 🔗 lock button keeps the aspect ratio — enter one dimension and the other auto-calculates. In Percentage and Preset modes, aspect ratio is always preserved.
Will my image lose quality when resized? +
Shrinking an image is lossless quality-wise (you're just removing pixels). Enlarging will soften the image since pixels are being interpolated. For best results, avoid enlarging beyond 150% of the original.
Is transparency preserved? +
Yes — if you choose PNG or WebP as output format and set background to "Transparent", alpha channels are fully preserved. JPG does not support transparency.
Is my image uploaded to a server? +
No. All resizing happens using the HTML5 Canvas API directly in your browser. Your images never leave your device.

How to Resize Images Online

Resizing an image with PDFSnip is simple. Upload your image (JPG, PNG, or WebP), enter your target dimensions in pixels or a percentage, and download the resized image immediately. Lock the aspect ratio to prevent distortion, or set custom width and height independently.

Why Resize Images?

Images that are too large slow down websites, take up unnecessary storage, and are inconvenient to share. Resizing images before uploading is one of the easiest ways to improve website performance. Common uses include resizing product photos for an online shop, preparing profile pictures and banners for social media, reducing image dimensions before emailing, and generating thumbnails from large photos.

Frequently Asked Questions

Can I resize without distorting the image?

Yes. Enable the aspect ratio lock and only set one dimension — the other is calculated automatically.

What formats are supported?

PDFSnip supports JPG, PNG, and WebP for resizing.

Is it free?

Yes, completely free. No account, no watermark, no limits.