Image Resizer
Resize one photo or a batch of up to 50, by pixels or percent — privately, in your browser.
- Runs in your browser — files never leave your device
- Instant — no waiting, no queue
- Features others lock behind paywalls
- No sign-up, no limits
Drop images here, click to choose, or paste
JPG, PNG, WebP, GIF, BMP, AVIF · up to 50 images per batch
Images are resized on your device. Nothing is uploaded.
Leave one side empty to keep proportions. Output is limited to 8,192 px per side and 16.7 MP.
How to use
- Drop images onto the box, click to choose files, or paste a screenshot with Ctrl/⌘ + V.
- Choose a preset or enter a width and/or height (or switch to Percentage).
- Pick an output format and quality. Follow the visible batch progress; you can cancel and resume long work.
- Download each image, or all of them as a ZIP.
Fit, fill or stretch?
When you set both width and height, the image’s shape usually won’t match the box. Fit shrinks the whole image until it fits inside the box, so nothing is cut off but one side may be smaller than you asked. Fill & crop makes the output exactly the size you asked for and trims the edges evenly from the centre — use this for profile pictures, thumbnails and social posts. Stretch forces the exact size and distorts the image; it’s rarely what you want.
Making files smaller
Pixel dimensions matter most: halving width and height cuts the pixel count to one quarter, which usually makes a smaller file. The exact byte saving depends on the image, format and quality setting. Use JPG or WebP for photographs, and PNG for screenshots, logos or images that need transparency. The result list shows the new file size before you download, so you can compare it with the original instead of guessing.
Your images stay on your device
Most online resizers upload your photos to a server, process them there and send them back. This one uses your browser’s own image engine (Canvas), so the files never leave your computer or phone. It decodes and resizes one image at a time, releases temporary pixel buffers between steps, and keeps running if you switch tabs. You can cancel and resume a long batch, and it keeps working offline once the page has loaded.
Frequently asked questions
Are my photos uploaded anywhere?
No. Resizing happens entirely in your browser. You can disconnect from the internet after the page loads and it still works.
How many images can I resize at once?
A batch can contain up to 50 images, including ordinary 12 MP and 24 MP phone photos. Images are decoded and resized one at a time to bound working memory. Progress stays visible, and you can cancel and resume a long batch or switch tabs while it continues.
Does resizing reduce image quality?
Making an image smaller keeps it sharp — this tool downsizes in steps to avoid jagged edges. Making an image larger than the original cannot add detail and will look soft; turn on “Don’t enlarge smaller images” to prevent that.
What size should an Instagram post be?
Square posts are 1080×1080 px, portrait posts 1080×1350 px (4:5), and Stories or Reels 1080×1920 px (9:16). Choose the preset and Fill & crop gives you the exact size.
Can I resize HEIC photos from an iPhone?
HEIC decoding depends on the browser and device. If your browser cannot read a HEIC photo, convert it to JPG first with our HEIC to JPG tool, then resize the JPG here.
What happens to animated GIFs?
This resizer exports the first frame of a GIF as a PNG, so it is suitable for making a still image, not for keeping an animation. Use a GIF-specific editor when you need to preserve every frame.
Is EXIF data (location, camera) kept?
No. Re-encoded images do not include the original metadata, which removes GPS location and camera details — useful before sharing photos publicly.
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Updated 2026-10-20