Runs in your browser · nothing is uploaded
Resize an image.
Any width and height you like, or a size a platform actually asks for.
Drop an image here
or pick one from your device
Or start at a known size
More sizes once your file is in
Your file
Result
·
Before and after
Original
Resized
Saved in the same format you started with
By using this tool you agree to our terms and privacy policy
Sizes that platforms ask for
Pick a size
Click any size to set it — with a file loaded it resizes right away
How it works
The whole thing runs on your device
The resizer draws your image onto a canvas in your own browser at the size you asked for. There is no upload, no queue and no server to wait for — which is also why it works on a slow connection.
- Exact pixel sizes
- Type a width and height and get exactly that, down to the pixel.
- Proportions held, or not
- Keep the original shape while you type, or unlock it and set both sides freely.
- Three ways to fit
- Crop, pad or stretch when the shape you want does not match the shape you have.
- Your file stays your file
- The image is never sent anywhere, so there is nothing for us to store or delete.
Start to finish
Three steps, no account
Step 01
Load your image
Drag a file onto the window or pick one from your device. Anything your browser can open works — JPG, PNG, WebP, GIF and BMP — up to 50 MB.
- Drag and drop, or browse
- Up to 50 MB
- No sign-in
Step 02
Set the size
Type a width and height, scale the original by a percentage, or choose a platform size. The preview updates as you go, so you see the crop before you commit to it.
- Exact pixels or a percentage
- Platform sizes built in
- Live preview of the result
Step 03
Download it
Compare the before and after, then save. The file comes back in the format you started with, named after the size you chose.
- Saves immediately
- Same format in and out
- No watermark
Fit methods
When the shape does not match
A 4:3 photo cannot become a square without something giving. These are the three ways to decide what gives.
Fills the target and cuts whatever hangs over the edge. Nothing is squashed, but the edges of the picture are gone.
- Keeps
- Proportions
- Loses
- The outer edges
- Use for
- Social posts, thumbnails, profile pictures
Fits the whole picture inside the target and fills the leftover space with a colour you choose. Nothing is cut and nothing is distorted.
- Keeps
- Every pixel
- Adds
- Bands of background
- Use for
- Logos, product shots, artwork
Pushes the picture out to the target on both axes. You hit the size exactly, but circles become ovals and faces look wrong.
- Keeps
- Every pixel
- Loses
- The proportions
- Use for
- Patterns, textures, abstract fills
Reference
Sizes worth memorising
The handful of dimensions that cover most of the work. Every one of them is in the picker above.
Social media
Crop works best- Instagram post1:1
- 1080 × 1080
- Instagram story9:16
- 1080 × 1920
- YouTube thumbnail16:9
- 1280 × 720
- LinkedIn post1:1
- 1200 × 1200
Online stores
Pad works best- Product main imageSquare
- 1200 × 1200
- Product thumbnailGrid tile
- 300 × 300
- Zoom imageDetail view
- 2000 × 2000
- Category banner16:5
- 1920 × 600
In practice
What people use it for
“I shoot weddings and deliver galleries in three sizes. Batching the same crop across a set used to be the slowest part of my week.”
“Device mockups from one design. Pad keeps the interface intact while still hitting the exact pixel size the spec asks for.”
“One image, then the sizes for Instagram, LinkedIn and X. Having the platform dimensions on the page saves me looking them up every time.”
“A catalogue of thousands of product shots at one consistent 1200 × 1200 with padding. Consistency is the whole job.”
Answers
Questions people ask
Will resizing reduce the quality?
Making an image smaller holds up very well — there is more detail than the new size needs, so the extra is simply discarded. Making one larger cannot invent detail that was never captured, so it will look softer the further you push it.
Start from the largest original you have and resize once. Resizing a file that has already been resized compounds the loss.
What is the difference between crop, pad and stretch?
Crop fills the target and cuts off whatever does not fit. Proportions survive; the edges of the picture do not. Best for social posts and thumbnails, where the middle is what matters.
Pad fits the whole picture inside the target and fills the gap with a colour you pick. Nothing is cut and nothing is distorted. Best for logos, product shots and artwork.
Stretch pushes the picture to the exact size on both axes, changing its proportions. Fine for patterns and textures, visibly wrong on anything with a face in it.
Which formats can I use?
Anything your browser can open: JPG, PNG, WebP, GIF and BMP. Transparency in a PNG or WebP is preserved unless you choose the pad method and set a background colour.
The resized file comes back in the format it went in — a JPG stays a JPG. To change format, run it through the image converter.
Is there a file size limit?
50 MB per image, and the same limit for everyone — there is no account or plan that changes it, because the resizing happens on your own device rather than on our servers.
The practical ceiling is your device's memory. Very large images on an older phone may be slow, and the tool handles one image at a time.
How should I size images for social platforms?
Instagram posts are 1080 × 1080 and stories 1080 × 1920. Facebook posts are 1200 × 630, LinkedIn 1200 × 627 and X 1200 × 675. All of these are in the picker above, so you do not have to remember them.
Use crop for social, and keep anything important away from the edges — every platform crops differently in feed previews.
Do you store the images I resize?
No, because we never receive them. The resizer works entirely inside your browser — your image is read from your device, drawn at the new size and handed back to you. It is never uploaded.
What we do record is usage data: the dimensions before and after, the method you chose and the file name. That is what tells us which sizes to add next.
Resize an image
Free, no account, no watermark, and the file never leaves your device.