What are standard image dimensions for Instagram, YouTube, and Facebook?

Instagram Post: 1080x1080px; Story: 1080x1920px; YouTube Thumbnail: 1280x720px; Facebook Cover: 820x312px.

Can I resize multiple images at the same time?

Yes, upload up to 50 images in a batch and download all resized images individually or as a ZIP archive.

Does reducing image dimensions reduce file size in KB?

Yes, reducing pixel resolution decreases total pixel count and cuts file weight by up to 90%.

Simple Image Resizer

Resize Image Dimensions & Format

Easily change image dimensions, scale by percentage, and choose your preferred output format.

1 Upload Images

Tap to choose images, or drag & drop here

Supports JPG, PNG, WebP, AVIF 📋 Or Press Ctrl + V to Paste

2 Choose New Size & Output Format

Width (pixels)

Height (pixels)

Lock Aspect Ratio (Auto-calculates Height in Real-time)

Scale to:

Choose Target Preset

Save Result As Format (Optional)

How to Resize Images Online for Free

Follow these 3 simple steps to change image dimensions or convert file formats instantly:

Upload Images

Drag & drop single or multiple JPG, PNG, or WebP photos into the upload box.

Set New Size

Enter custom pixel dimensions (width & height), scale by percentage, or choose a social media preset.

Download Resized Images

Click Resize to process and download individual pictures or get all files combined in a single .ZIP archive.

Image Resizing — Frequently Asked Questions

Common questions about pixel dimensions, aspect ratio lock, and preset sizes.

Keep the "Lock Aspect Ratio" option enabled. When you enter a new Width (e.g. 1080px), our resizer automatically calculates and updates the Height proportionally so your photo never gets squished or distorted.

Popular standard sizes include: Instagram Post: 1080×1080px (Square) or 1080×1350px (Portrait); Instagram Story / Reels: 1080×1920px; YouTube Thumbnail: 1280×720px; Facebook Cover: 820×312px. You can select any of these with 1-click in the Presets tab.

Yes! You can upload up to 50 images in a single batch, choose your desired dimension or percentage scale, and download all resized images individually or packaged into a single .ZIP file.

Yes! Reducing the pixel resolution (e.g. from 4000×3000 down to 1200×900) drastically reduces the total number of pixels, decreasing file size by 70% to 90% without compromising visual sharpness on modern screens.

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