Skip to content
ConvenTools

Resize Image

Runs in your browser — your files never leave your device

Resize JPG, PNG and WebP images to exact dimensions or by percentage — locally in your browser. Keep the aspect ratio, resize a whole batch, and download. Nothing is uploaded.

Drop JPG, PNG or WebP images here, or click to choose
Resized on your device — nothing is uploaded.

How to use it

  1. 1
    Add your images

    Drag JPG, PNG or WebP files onto the drop zone or click to choose them. Batches are welcome.

  2. 2
    Choose the size

    Pick pixels or percentage, enter your target dimensions, and keep "lock aspect ratio" on to avoid distortion.

  3. 3
    Pick a format (optional)

    Keep the original format or convert to JPG, PNG or WebP, and set the quality for lossy formats.

  4. 4
    Download

    Save each resized image, or download them all as a ZIP. Your originals are never modified or uploaded.

Exact sizes or simple percentages

Set a target width and height in pixels, or scale by a percentage. With the aspect ratio locked, each image is fitted into your dimensions without distortion; unlock it to stretch to an exact size. A high-quality Lanczos filter keeps resized photos crisp.

Batch resizing, nothing uploaded

Drop in many images at once and resize them all with the same settings, then grab them as a single ZIP. Everything runs on your device — no upload wait, no quotas, no watermarks.

Frequently asked questions

Are my images uploaded to a server?

No. Resizing runs entirely in your browser; your images never leave your device.

Will resizing reduce quality?

Downscaling uses a high-quality Lanczos filter, so results stay sharp. Enlarging beyond the original can look soft — keep "don't upscale" on to prevent it.

Can I keep the aspect ratio?

Yes. With "lock aspect ratio" on, each image is fitted into your width/height without stretching. Turn it off to resize to exact, possibly distorted, dimensions.

Can I resize many images at once?

Yes. Add a batch and they are resized one at a time with the same settings; download them individually or as a ZIP.

Which formats are supported?

JPG, PNG and WebP input and output. You can keep the original format or convert while resizing.