What are the best dimensions for Instagram Posts?

For square posts use 1080x1080px. For portrait (vertical), use 1080x1350px to maximize screen real estate.

Does this tool reduce image quality?

We use high-quality canvas rendering to preserve as much detail as possible. You can export in PNG for lossless or JPG for smaller files.

Are my photos uploaded to a server?

No! This tool processes your images locally in your browser using JavaScript. Your production files never leave your device.

How do I fix a cropped head in my photo?

Select "Cover" mode, then click and drag the image on the preview to reposition it until the framing is perfect.

Can I use custom dimensions?

Yes, if the presets don't match your needs, simply enter your custom Width and Height values.

Social Media Resizer

Social Media Resizer Overview

Resize and crop images for Instagram, Facebook, and more

Social Media Resizer is the ultimate free online tool to perfectly size your images for every major social platform: Instagram, Facebook, Twitter, LinkedIn, YouTube, and TikTok. Stop guessing dimensions or wrestling with complex photo editors—our tool provides one-click presets for Posts, Stories, Covers, Headers, Thumbnails, and more. A key feature of this tool is its **Smart Fit Modes**: use "Cover" to crop your image to fill the exact dimensions without distortion (perfect for aesthetic feeds), or "Contain" to keep the entire image visible by adding a background color (ideal for sharing screenshots or full graphics). Unlike other cloud-based tools, this resizer runs 100% in your browser. Your photos are processed locally on your device for maximum speed and privacy—they are never uploaded to any server. Whether you are a social media manager, content creator, or small business owner, use this tool to ensure your visuals look professional and pixel-perfect on every channel.

How to Use Social Media Resizer

Upload an image from your device
Select a platform and format (e.g., Instagram Story)
Choose "Cover" to crop or "Contain" to fit the whole image
Drag to reposition the image (in Cover mode)
Use the slider to scale and zoom
Download your perfectly resized image instantly

Frequently Asked Questions

What are the best dimensions for Instagram Posts?: For square posts use 1080x1080px. For portrait (vertical), use 1080x1350px to maximize screen real estate.
Does this tool reduce image quality?: We use high-quality canvas rendering to preserve as much detail as possible. You can export in PNG for lossless or JPG for smaller files.
Are my photos uploaded to a server?: No! This tool processes your images locally in your browser using JavaScript. Your production files never leave your device.
How do I fix a cropped head in my photo?: Select "Cover" mode, then click and drag the image on the preview to reposition it until the framing is perfect.
Can I use custom dimensions?: Yes, if the presets don't match your needs, simply enter your custom Width and Height values.

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