Image Tools
Resize Image
Set exact dimensions in pixels.
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Files are processed on your device. Nothing is uploaded to a server.
Resize Image: what this tool does
Resize an image to exact pixel dimensions while optionally keeping its original aspect ratio. This is useful when a website, application form, profile system, or document requires a specific width and height.
How it works
- 01
Upload an image — the tool reads its current dimensions automatically so you have a starting point.
- 02
Enter the exact width and height you need, or just one of them with aspect ratio locked to calculate the other.
- 03
Download the resized file, ready for whatever form, upload limit, or layout it needs to fit.
When this tool is useful
- Preparing an image for a form with exact pixel requirements.
- Making website images smaller before uploading them.
- Creating consistent dimensions across a group of images.
Supported formats
What to know before you use this tool
Resizing changes an image's pixel dimensions. It is useful when a website, application, form, or document requires a specific width or height, and it can also reduce file size by removing pixels that will never be displayed.
Good use cases
- Preparing images for websites and forms
- Meeting required pixel dimensions
- Reducing oversized camera images before sharing
A sensible workflow
- Start from the highest-quality original available.
- Preserve the aspect ratio unless the destination explicitly requires distortion.
- Resize once to the final dimensions, then compress if a separate file-size limit still applies.
Things worth checking
- Upscaling creates more pixels but cannot recreate detail that was never captured.
- Crop before resizing when large unused areas are part of the source.
- Keep the original so you can create a different size later without repeatedly resizing the same file.
Continue learning
Tips for better results
- Lock the aspect ratio when you want to avoid stretching.
- Reduce dimensions before compression when the source is much larger than necessary.
- Do not enlarge a small image expecting new detail to appear.
What to expect
Resizing changes the pixel dimensions; it cannot recover detail that was never present. Enlarging an image can make edges look softer.
Frequently asked questions
Will resizing distort my image?
Only if you turn off 'maintain aspect ratio'. Leave it on to avoid stretching.
Can I make an image bigger than the original?
You can enter larger dimensions, but enlarging beyond the original resolution doesn't add real detail — the result will look softer than a genuinely higher-resolution photo.
What's a good size for a website or social media?
It depends on the platform, but common targets are around 1200px wide for a blog image or 1080px square for social posts — check the specific platform's current recommendation if you need to match it exactly.
Common mistakes to avoid
Scaling an image up instead of down
Reducing dimensions is lossless in the sense that no new detail needs to be invented. Enlarging a small image, on the other hand, can't add detail that was never captured — the result will look softer than the original, no matter which resize tool is used.
Ignoring aspect ratio and stretching the image
Typing a new width and height without keeping the original proportions distorts faces and objects noticeably. Unless you specifically need an exact non-proportional size (like a fixed banner slot), keep aspect ratio locked.
Resizing for the wrong context
A photo meant for print needs far higher pixel dimensions than one meant only for a web page or social post. Decide where the image will actually be used before picking a target size, not after.