Resize Image

Image ToolsPopularPremium

Resize images to exact pixel dimensions or percentages.

Nothing Is UploadedRuns In This Browser TabNo Account Needed

How It Works

1

Upload / Input

Select your files or paste your content to get started.

2

Process

The work happens in this browser tab. Your file never leaves your device, so nothing is queued, stored or transmitted.

3

Download / Result

Get your results instantly. Download files or copy output in one click.

Features

Resize by pixels or percentage
Lock / unlock aspect ratio
Batch resize multiple images
Smoothed scaling at the browser’s highest resampling quality
Accepts JPG, PNG, WEBP and BMP; downloads as PNG

How to use Resize Image

  1. Add your images

    Drop in one JPG, PNG, WebP or BMP, or a batch of them. HEIC is not accepted — convert it to JPG on your phone first. Processing runs in your browser.

  2. Set the target size

    Enter exact pixel dimensions or a percentage. Leave aspect-ratio lock on unless you specifically want to distort the image.

  3. Check the preview

    The resized result is shown before you download it — look at it at 100% if you have reduced the dimensions a long way.

  4. Download

    Each resized image downloads on its own — there is no zip of the whole batch.

When to use Resize Image

  • Meeting an upload limit that specifies maximum pixel dimensions
  • Preparing photos for a website so pages load quickly
  • Resizing a profile picture to the exact size a platform requires
  • Shrinking phone photos before emailing a batch of them

FAQ

Scaling down generally preserves quality well. Scaling up always introduces softness — the extra pixels are interpolated, not recovered — and no resampling setting changes that.
A PNG, whatever you put in. PNG is lossless, so nothing is degraded beyond the resize itself, but a resized photograph will be a considerably larger file than the JPG it came from. Run it through Compress Image afterwards if size matters.
Yes. Drop several files and they will all be resized to the same dimensions. They download one at a time — there is no zip of the whole batch.
There is no hard limit, but very large images (above 50 MP) may be slow to process in the browser.
Making it smaller will not, provided the result is still at least as large as where it will be displayed. Making it larger always softens the image, because the extra pixels are interpolated rather than real detail.
About 1600 px wide covers most full-width uses, and 800 px is plenty for an in-article image. Going much beyond that mainly costs your visitors load time.
Not from here — the download is always a PNG, which is lossless but several times larger for a photograph. If you want a JPG, run the PNG through Compress Image afterwards; that tool writes JPG and lets you pick the quality.
Yes. Set the target dimensions once and apply them across a batch, which also keeps a set of images visually consistent.

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About Resize Image

Resizing changes an image's pixel dimensions; compressing stores the same pixels less precisely. People reach for compression first, but resizing is usually the bigger and safer win. A modern phone photo is around 12 megapixels, while a full-screen image on a laptop needs roughly 2 — you are typically carrying six times more detail than anything will display.

Reducing dimensions is essentially free visually, as long as the result is still larger than the space it will be shown in. Enlarging is not: upscaling invents pixels by interpolation, and the result looks soft no matter which tool you use. Never enlarge a photo expecting detail to appear.

Always work on a copy. Once pixels are discarded they cannot be recovered, and the most common regret is resizing the only version of a photo that mattered.

Tips and limits

  • Target widths: 1200 px for email, 1600 px for web, 2048 px for social, 2480 px for A4 printing.
  • Resize first, then compress. Heavy compression at full dimensions produces visible blocking; the same file size at smaller dimensions looks clean.
  • Keep aspect ratio locked unless distortion is genuinely what you want.
  • Never save over your original — resizing is not reversible.
  • The download is a PNG. For a photograph that is several times larger than a JPG, so follow with Compress Image if size matters.