Free Tool

Image Resizer

Resize images to exact dimensions or a percentage of the original. Export as PNG, WebP, or JPG. Transparency is preserved on PNG and WebP exports.

Drag to compare

Image resized to target dimensions — PNG, WebP, or JPG output

Before

After

Resize to exact pixel dimensions — transparency preserved in PNG and WebP output

Drop an image here

or click to browse — JPG, PNG, WebP, AVIF, HEIC

Notes

Resizing uses high-quality bicubic interpolation via the browser's Canvas 2D API. Transparency is preserved in PNG and WebP exports — JPG will composite transparent areas onto white. Maximum output dimension is 8192 × 8192 px.

Your image never leaves your device — all processing is local.

How it works

Drop a PNG, JPG, WebP, or AVIF image — or click to browse
Select a preset resolution (1920×1080, 1280×720, 800×600, etc.) or enter custom width/height
Choose fit (cover, contain, or stretch) and download the resized PNG

Frequently asked questions

Does resizing reduce quality?

Resizing to a larger size (upscaling) can introduce blur — use the AI upscaler for quality upscaling. Downscaling to smaller dimensions preserves quality well. PNG output is always lossless.

Can I resize without changing the aspect ratio?

Yes. Select "Contain" fit to letterbox within the target dimensions, or "Cover" to crop and fill. Custom mode lets you set one dimension and auto-calculate the other.

What formats are supported?

Input: PNG, JPG, WebP, AVIF. Output: PNG (lossless). Use the Format Converter to change to JPEG or WebP after resizing.

Related tools

Canvas Extender

Expand canvas with transparent border

Rotate & Flip

Rotate or mirror images

Image Filter

Apply filters after resizing

Image Compressor

Reduce file size after resizing

Why it's different

Image resizing with bicubic interpolation entirely in your browser — transparency preserved in PNG and WebP exports. No upload, no server.

100% Private

Everything runs on your device using in-browser AI. Nothing is transmitted to any server — not the file, not metadata, not filenames.

True Alpha Channel

We export straight (non-premultiplied) alpha so transparent PNGs open with a real checkerboard in Photoshop and Figma — no black halos.

Free Forever

No paywall, no watermark, no premium tier. The full-quality AI is free, supported by non-intrusive ads.

Works Offline

Once loaded, the app and AI models cache locally. Process files without an internet connection. Installable as a desktop or mobile app.

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Ready to try it?

Free, private, no signup.

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