Image Resizer
Set the size, keep the proportions, download your images.
Files stay on your device. Nothing is uploaded.
JPEG, PNG, WebP · 30 files · 50 MB each · 200 MB total · 25 MP and 16,384 px per side.
Locked: fit inside the bounds, without cropping or padding. Unlocked: stretch to both dimensions.
1–500%. Applied to each original image.
JPEG: white background. JPEG/WebP: 90% quality. Animation becomes a still frame.
Resized images
Add images, choose a size and select Resize images.
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Resize photos, screenshots and graphics to the dimensions you need before sharing them or adding them to a website. Enter a width or height in pixels, scale each image by a percentage, or start with a named social size. The aspect ratio lock keeps faces and objects in proportion. Add several JPEG, PNG or WebP files and apply the same settings to the whole batch. Processing stays in your browser, and each finished image has its own preview, dimensions and download button.
How to use
- Choose or drop your JPEG, PNG or WebP images into the file area.
- Enter pixel dimensions or a percentage, or choose a social preset.
- Keep the ratio locked to fit within the dimensions; unlock it only if stretching is intended.
- Choose the output format, select Resize images, then download each finished result.
What it handles
- Pixel dimensions from 1 to 16,384 per side, with a 25-megapixel limit for source and output.
- Percentage scaling from 1% to 500%, calculated separately for each original image.
- Instagram square 1080 × 1080, portrait 1080 × 1350, Stories 1080 × 1920, YouTube thumbnail 1280 × 720 and Facebook link 1200 × 630.
- Up to 30 files, 50 MB per file and 200 MB of input per batch; files run one at a time.
- PNG and WebP retain transparency; JPEG uses a white background. Animated images become a still frame.
FAQ
How do I resize without stretching the picture?
Keep the aspect ratio locked. For a 4000 × 3000 photo, set the width to 1200 and leave the height empty: the result is 1200 × 900 pixels. Setting both bounds to 1200 × 1200 still gives 1200 × 900, without cropping or padding. Scaling by 50% gives 2000 × 1500 instead. Unlocking the ratio forces both dimensions and can stretch the picture; it does not crop it into a square.
Will a social preset produce an exact canvas size?
The presets supply fixed, commonly used dimensions as a starting point, rather than checking a platform's current upload rules. With the ratio locked, a landscape photo fitted into the square preset remains landscape. There is no cropping or added border. For an exact rectangle, unlock the ratio and accept possible distortion.
Does resizing reduce quality or remove metadata?
Making an image smaller discards pixels; enlarging it cannot recreate missing detail. PNG output uses lossless encoding, while JPEG and WebP use a fixed quality setting of 90%. The browser creates a new image, so original EXIF metadata is not copied. Phone-photo orientation is applied to the pixels before resizing.
Where are my files processed, and what are the limits?
Files stay in memory on your device and are never saved to local storage. A worker processes them using OffscreenCanvas; an unsupported browser shows an error. Sources and outputs must fit within 25 megapixels and 16,384 pixels per side. Clear releases the results. Download them before clearing or leaving the page.
Updated