Resize images
Resize your photos in bulk: set width or height in pixels, a percentage scale or the exact format of a social network, with centered crop or colored margins. Files never leave your device.
Processed 100% in your browser
Ctrl + Enter runCtrl + C copy result
How to use
- 1Drop one or more images (or paste them with Ctrl+V).
- 2Choose the mode: pixels, percentage or a social media preset.
- 3With the aspect ratio locked, enter just the width or the height; the other is calculated.
- 4Download each image or all of them as a ZIP.
Use cases
- Prepare images at the exact size of Instagram, YouTube, X or LinkedIn.
- Shrink large phone photos to send by email.
- Create thumbnails and web versions of a set of photos.
- Meet the image requirements of online stores or forms.
Frequently asked questions
Do I lose quality when resizing?
Shrinking keeps quality very well. Enlarging makes the image blurrier because detail that does not exist cannot be invented: avoid enlarging beyond 150%.
What is the difference between “Fill” and “Contain”?
“Fill” covers the whole canvas and crops the excess from the center; “Contain” shows the whole image and adds margins in the color you choose.
What are the ideal social media image sizes?
Instagram square 1080×1080, story 1080×1920, YouTube thumbnail 1280×720 and the link image (Open Graph) 1200×630. They are included as presets.
Are my photos uploaded?
No. They are processed locally with Canvas inside a Web Worker, so they stay private and there is no file limit.