Resize Image to 400×300 Pixels Online
Resize JPG, PNG or WebP images to exactly 400×300 pixels online for free. Keep the required canvas size while processing directly in your browser.
Smart target-size workflow
Resize to 400 × 300px without guesswork
Batch up to 50 images, preserve useful quality, review the result, then download individual files or one ZIP.
How to resize an image to 400 × 300px
- 1. Choose the source: Start with the clearest original image you have.
- 2. Process once: Let the browser create an optimized copy for the requested target.
- 3. Verify: Check output size and dimensions against the destination requirements.
- 4. Keep the original: Use the optimized copy for the upload or website.
When this tool is useful
- Online applications and admission forms with file-size limits.
- Job portals and profile-photo uploads with strict photo requirements.
- Websites and email where unnecessarily large images slow delivery.
- Workflows where a predictable output size or pixel dimension matters.
Frequently asked questions
Can I resize an image to exactly 400 × 300px?
Yes. This page creates an output at 400 × 300px. If the source has a different aspect ratio, the result may look stretched, so check the output visually before using it.
Will resizing change image quality?
Changing pixel dimensions can affect sharpness. Downscaling is usually forgiving, while enlarging a small source can make it softer. Keep the original and use the resized copy for the destination.
What is the difference between pixels and KB?
Pixels describe image dimensions, while KB describes file size. Two images with the same pixel dimensions can have very different file sizes because compression and image content vary.
Related image tools
Check the destination requirements first
File-size and image-dimension rules vary between government forms, job portals, admissions systems, websites and other services. MAXScanner can prepare the file, but the destination’s current instructions are the final authority. If a form specifies both pixels and KB, satisfy the pixel requirement first and then bring the resulting file under the stated size limit.