Free image resizer & cropper

1. Add your images. Drag and drop them onto the box above, or click to browse. You can resize a single photo or dozens at once — it's built for batches.
2. Choose a resize mode. Pick Exact size to type a specific width and height in pixels, or By percentage to scale everything up or down proportionally.
3. Lock the aspect ratio (optional). With the lock toggle on, typing a new width automatically recalculates the height (and vice versa), so your image never looks stretched or squashed.
4. Or tap a preset width. Use the one-click 1920, 1280, 1024, 800, or 640px buttons for the most common web and social sizes.
5. Crop to an aspect ratio (optional). Turn on Original, 1:1, 4:5, 16:9, or 9:16 to center-crop every image to that exact shape before it's resized.
6. Download. Grab each resized image with its own download button, or use Download all to save the whole batch in one go.

Because every calculation happens on your device using the HTML canvas API, there is no upload limit, no waiting on a server, and no watermark on your images.

These three words get used interchangeably, but they do very different things to an image. Understanding the difference helps you pick the right tool for the job:

In practice you often want two of these at once — resize down to the display size and compress the result, or crop to a square and resize it to a standard size. This tool covers resizing and cropping together; when you just need to shrink file size at the same dimensions, use our image compressor instead.

• Faster pages. A 4000px photo displayed at 800px wastes most of its data — resizing it down to the size it's actually shown at is the single biggest lever for page speed.
• Platform requirements. Every social network, ad platform, and marketplace has its own preferred pixel dimensions. Uploading the wrong size gets your image auto-cropped or stretched by the platform, often awkwardly.
• Smaller files, less bandwidth. Cutting an image's dimensions in half cuts its uncompressed pixel count to a quarter, which is usually the fastest way to shrink a file that's too large to upload.
• Consistent layouts. A gallery, product grid, or email template looks broken if every image comes in at a different size — resizing everything to a standard dimension keeps things aligned.
• Print and design specs. Print shops, ad units, and design templates often require exact pixel or ratio specifications before they'll accept a file.

If you're not sure what dimensions to resize to, this covers the most common destinations. Use the crop control above to hit the aspect ratio, then the width preset or exact size to hit the pixel dimension.

Not sure which ratio fits your layout? Our aspect ratio calculator works out the exact width or height for any target ratio before you resize.

• Always scale down from the original. Enlarging a small image adds no real detail — it just stretches existing pixels and looks soft. Start from the highest-resolution source you have.
• Keep the aspect ratio locked unless you specifically want to crop or distort the image. Locking prevents accidental stretching when you only mean to change one dimension.
• Crop before you resize when the target platform needs a different shape (like turning a landscape photo into a square) — cropping first keeps the subject centered instead of squashing it.
• Resize to the display size, not larger. If an image displays at 800px wide on your site, there is no benefit to shipping a 3000px file — it only adds load time.
• Batch similar images together. If you have a gallery or product set, resize them all with the same settings in one pass so every image comes out consistent.
• Pair resizing with compression. Resizing shrinks the pixel count; compressing shrinks the file size at that pixel count. Do both for the smallest possible file.

Yes. Unlike most online resizers that upload your files to a server for processing, this tool does everything locally in your browser using the HTML canvas API. Your images never leave your device, the resizing works offline once the page has loaded, and nothing is stored, logged, or transmitted anywhere. That makes it safe to use for client work, personal photos, ID scans, and any other sensitive image you wouldn't want touching a third-party server.

• Social media managers resize and crop the same photo into a dozen platform-specific sizes without opening a design tool.
• E-commerce sellers standardize product photos to a consistent square size across an entire catalog.
• Bloggers & site owners resize hero images and screenshots to the exact display width their theme uses, cutting page weight.
• Developers batch-resize test assets or generate multiple breakpoint sizes for responsive images.
• Job seekers & students resize a profile photo, ID scan, or portfolio image to meet an exact pixel requirement on a form.
• Email marketers resize campaign images to fit newsletter templates without distorting the layout.

Exact size is best when a form, platform, or spec tells you the precise pixel dimensions it needs — type the width and height directly, or lock the aspect ratio and enter just one. By percentage is best when you want to shrink or enlarge an image proportionally without worrying about the exact final pixel count — 50% halves both dimensions, 200% doubles them. Preset widths (1920, 1280, 1024, 800, 640) cover the most common web breakpoints and social sizes in a single click, which is the fastest option when you don't need an exact custom number.

A quick way to decide: if someone handed you a spec sheet with numbers on it, use exact size. If you're just trying to make a batch of photos lighter without caring about the final pixel count, use percentage. If you're publishing to the web and just want a sensible default, tap a preset width — 1920px covers full hero banners, 1280px and 1024px cover most in-content images, and 800px or 640px suit thumbnails and email.

Every setting on this page — resize mode, dimensions, percentage, crop aspect, and output format — applies to every image you drop in, so you can resize an entire folder of photos to the same specification in one pass. This is particularly useful for:

• Product catalogs. Resize and crop every product photo to the same square dimensions so your store grid looks uniform, without opening each image individually in a design tool.
• Photo galleries and portfolios. Standardize a shoot's worth of images to one display width before uploading, so page load stays fast no matter how many photos are in the gallery.
• Social content batches. Crop and resize a week's worth of posts to the same aspect ratio in one session instead of repeating the same steps in a design app for each image.

Because everything happens locally, there's no per-image upload wait — the browser processes each file as fast as your device can decode and re-encode it, and results appear in the list as they finish. Use Download all once the batch is done to save every resized file at once, or download individual files if you only need a few from a larger batch.

The optional crop control center-crops your image to a target shape before resizing. A landscape photo cropped to 1:1 keeps the middle of the frame and trims equal amounts off the left and right edges; a landscape photo cropped to 9:16 trims most of the width to produce a tall vertical frame suited to Stories and Reels. Because the crop is always centered, it works well for most subjects, but for off-center subjects you may want to frame the shot more tightly before uploading, since this tool does not offer manual crop repositioning.

Cropping and resizing are applied together in a single pass: the tool first works out the crop rectangle from your source image, then scales that cropped region to your requested output size. That means you get a correctly framed, correctly sized image in one step instead of cropping in one app and resizing in another. If you leave the crop control on Original, no cropping happens at all and the full frame is simply scaled to your target dimensions.

• Typing both width and height by hand with the lock off. If the new numbers don't match the original ratio, the image will look stretched or squashed. Either lock the aspect ratio or crop first, then resize.
• Upscaling a small image to fill a large space. Resizing a 400px thumbnail up to 1920px doesn't add detail — it just blurs existing pixels across more space. Source a larger original instead whenever possible.
• Uploading the full-resolution original everywhere. A 6000px camera photo dropped straight into a blog post or product page forces visitors to download pixels they'll never see, slowing the page down for no visual benefit.
• Ignoring the platform's expected aspect ratio. Uploading a square photo where a platform expects 16:9 usually results in the platform auto-cropping it — often cutting off exactly the part of the image you wanted visible. Crop to the right ratio yourself first so you control the framing.
• Resizing after compressing instead of before. Compression artifacts get resampled and can become more visible after a resize. Resize to final dimensions first, then compress the result.
• Forgetting retina and high-DPI displays. If an image displays at 400px wide on a high-DPI screen, export at roughly double that (800px) so it still looks sharp on phones and modern monitors, then let compression handle the extra file weight.

Resizing doesn't require changing the file format, and by default this tool keeps your original format — a resized PNG stays a PNG, a resized JPG stays a JPG. But resizing is also a natural moment to switch formats, since you're already re-encoding the image:

• Keep JPG for photographs headed to most websites and social platforms — broad support and small files for photographic detail.
• Switch to WebP when file size matters most; it typically produces smaller files than JPG at the same visual quality and still supports transparency.
• Switch to PNG only if the resized image needs a transparent background or is a screenshot/graphic with sharp text and flat colors that would blur under JPG compression.

If you only need to convert between formats without changing dimensions, our WebP to PNG converter handles that directly. And once your images are the right size, run them through the image compressor to squeeze out the last bit of file weight before you publish.