A dedicated blog image resizer that gets your pictures ready for WordPress in one click. Pick a preset like Featured Image, Blog Thumbnail, or OG Image 1200×630, or set a custom width, then choose JPG, PNG or WebP as the output format for your png resizer or jpeg resize needs.
Resize Image for Website / Blog
Original image
Resized for web
Choose a preset and click Resize Image to see the result here.
How to Resize an Image for Your Website or Blog
- Click the upload box or drag and drop your image into it.
- Choose a preset such as Featured Image, Blog Thumbnail, or OG Image, or pick Custom width and enter your own value.
- Select JPG, PNG or WebP as your output format.
- Click Resize Image and review the new dimensions and file size.
- Click Download Resized Image and upload it to your website or blog.
Common Blog Image Sizes
| Use case | Size (pixels) |
|---|---|
| Featured Image | 1200 x 675 |
| Blog Thumbnail | 300 x 300 |
| OG Image (social sharing) | 1200 x 630 |
Frequently Asked Questions
What size should a blog featured image be?
A common featured image size is 1200 x 675 pixels, which matches a 16:9 aspect ratio and displays well across most WordPress themes.
What is an OG image and what size should it be?
An OG image is the picture that shows up when your page is shared on social media. The recommended size is 1200 x 630 pixels, which is available as a preset here.
Should I use a PNG resizer or a JPG resizer for blog images?
Use PNG for graphics, screenshots, or images that need transparency. Use JPG for photographs, since jpeg resize output is typically much smaller for photographic content at a similar visual quality.
Is WebP a good choice for website images?
Yes. WebP usually produces smaller files than JPG or PNG at similar quality, which can help your page load faster, and this tool lets you export directly to WebP.
Why does image size matter for website speed?
Large, unoptimized images are one of the most common causes of slow-loading web pages. Resizing images to the actual display size before uploading reduces the amount of data visitors have to download.
Can I use a custom width instead of a preset?
Yes. Select Custom width from the preset dropdown and enter any width you need. The height is calculated automatically to keep your image’s original proportions.
Resizing an image for your website or blog helps improve page speed without sacrificing too much visual quality. Large photos can increase loading time, so using an online image resizer lets you adjust image dimensions before uploading them.
For blog posts, choose image dimensions based on where the picture will appear. A blog image resizer can help create the right size for featured images, thumbnails, content images, and website banners while maintaining the original aspect ratio.
If you want to resize images without losing quality, avoid enlarging small images unnecessarily. Instead, reduce oversized photos and use an appropriate compression level. This can create smaller image files that load faster while still looking sharp on desktop and mobile devices.
You can also compress images for websites by converting large JPG or PNG files into optimized WebP images. Combining image resizing with compression can reduce file size, improve website performance, and make your blog pages faster for visitors.