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PNG, JPG, WEBP, GIF
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UploadDrop or select any image.
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Set SizeEnter pixels or a percentage scale.
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DownloadClick Resize & Download.
Resize to exact pixels or percentage — free, instant, private
Resizing an image means changing its width and height in pixels. This is one of the most common image tasks there is — whether you're preparing a photo for a web page, reducing a file before emailing it, meeting a platform's upload requirements, or scaling down a large camera photo for use on social media.
It's important to distinguish resizing from compression. Resizing changes the actual pixel dimensions of the image. Compression reduces the file size by discarding data, but the pixel dimensions stay the same. In practice, making an image smaller in pixels also reduces its file size — but if you specifically need a file under a certain size in kilobytes, use the Compress Image tool instead.
Pixels lets you enter exact width and height values. This is the right choice when a platform specifies exact dimensions — for example, a LinkedIn banner at 1584×396px, or a YouTube thumbnail at 1280×720px. Enable "Lock aspect ratio" to prevent distortion.
Percentage scales the image relative to its current size. Setting 50% halves both dimensions; 200% doubles them. This is useful when you want to make an image a specific fraction of its original size without caring about the exact output pixel count.
Not sure what size you need? Here are the most commonly requested dimensions across social media and web platforms.
| Platform / Use | Dimensions (px) | Notes |
|---|---|---|
| Profile picture (most platforms) | 400 × 400 | Displayed as a circle on most sites |
| LinkedIn banner | 1584 × 396 | Profile background image |
| Twitter / X header | 1500 × 500 | Profile banner |
| Facebook cover photo | 820 × 312 | Desktop display |
| Instagram post (square) | 1080 × 1080 | Best for feed posts |
| Instagram Story / Reel | 1080 × 1920 | 9:16 vertical |
| YouTube thumbnail | 1280 × 720 | 16:9 ratio required |
| Open Graph / social preview | 1200 × 630 | Link preview image |
| Email header image | 600 × 200 | Standard email width |
| Full HD desktop wallpaper | 1920 × 1080 | 16:9 widescreen |
Changing width and height independently distorts the image. Keep "Lock aspect ratio" checked unless you specifically need to stretch or squash it.
Shrinking an image keeps it sharp. Enlarging beyond the original size makes it blurry, as no new pixel detail can be created. If you need a larger image, start with the highest resolution source available.
Use PNG for images with text, sharp edges, or transparency. Use JPG for photographs where a slightly smaller file is more important than perfect quality. Use WEBP for the best combination of both.
High-DPI screens (iPhone, MacBook Retina, modern Android) display images at 2× density. Export at double the intended display size — e.g. 800px wide if the image will display at 400px — for a crisp result.
If you need to reduce file size, resize to your target dimensions first, then use the Compress Image tool. Compressing an oversized image wastes less effort than compressing and then resizing.
All processing happens in your browser. Your image is never sent to any server, so you can safely resize private or confidential photos without any data leaving your device.