Resize to the exact dimensions you need
Most platforms want images at particular sizes: a 1280 by 720 video thumbnail, a 1500 by 500 header, a 1080 by 1080 post. This resizer lets you type exact pixel dimensions or pick a preset, then decide how the image should fit into that frame.
Three fit modes cover every situation. Fill stretches the image to the exact size, Contain fits the whole image inside the frame with bars around it, and Cover fills the frame completely by cropping the edges. The result can be saved as JPEG, PNG or WebP with adjustable quality.
How to resize an image
Step 1: Drop one image
Any common format works, including HEIC and TIFF.
Step 2: Enter the size or pick a preset
Type the width and height, or open Instagram, YouTube, X, Facebook, TikTok or Standard presets. Use the lock to keep proportions.
Step 3: Choose a fit mode
Fill, Contain or Cover, depending on whether you prefer stretching, bars or cropping.
Step 4: Resize and download
Choose JPEG, PNG or WebP and quality, then download the resized image.
Resizer options
Exact pixel dimensions
Any width and height, with an optional aspect ratio lock.
Three fit modes
Fill (stretch), Contain (letterbox on white) and Cover (crop to fill, centered).
Ready-made presets
Instagram post, portrait and story, YouTube thumbnail and banner, X header, Facebook cover, HD, Full HD, 4K and more.
Output format and quality
JPEG, PNG or WebP, with a 10 to 100 percent quality slider for JPEG and WebP.
When to use the image resizer
Social media posts. Match each platform's recommended dimensions to avoid automatic cropping.
Website layouts. Resize hero images and thumbnails to the size your theme actually shows.
Presentations and documents. Scale down huge photos so decks stay light.
Upload requirements. Meet forms that demand specific pixel dimensions.
Fill, Contain or Cover: which one?
Fill changes the aspect ratio if the new size has a different shape, which can make faces and objects look stretched. Use it only when the proportions already match or distortion does not matter.
Contain keeps the whole picture visible and adds white bars where the shapes differ. Cover keeps the frame filled and crops the overflow evenly from both sides, which is usually what social platforms expect. If the important part of the photo is off-center, crop it first with the image cropper and then resize.
- Same proportions: any mode gives the same result.
- Must show everything: Contain.
- Must fill the frame: Cover.
Upscaling and quality
Making an image smaller always looks good. Making it larger than the original cannot add detail, so upscaled images look soft. If you need a large size, start from the highest resolution version you have.
For photos, JPEG or WebP at 85 to 90 percent gives a good balance. Choose PNG for graphics with text, or when you want no compression artifacts at all.
Tips for resizing
- Turn on the lock before changing one dimension to keep the original proportions.
- Use Cover for social posts and Contain for product images that must show every edge.
- Resize before compressing; smaller dimensions shrink files more than any quality setting.
- Need many sizes for social networks at once? The social media resizer generates them together.
Image resizer FAQ
Can I keep the aspect ratio?
Yes. Use the lock button between width and height; changing one value updates the other.
What does Contain do?
It fits the whole image inside the new size and fills the remaining space with white.
What does Cover do?
It fills the new size completely and crops the parts that do not fit, keeping the image centered.
Can I make an image bigger?
Yes, but enlarging cannot add real detail, so the result looks softer than the original.
Which output formats are available?
JPEG, PNG and WebP. JPEG and WebP have a quality slider.
Is my image uploaded?
No. Resizing happens in your browser.