Are PixelTools free to use?

Yes, all 18 image tools on PixelTools are completely free with no limits, no account required, and no hidden fees.

Do my images get uploaded to a server?

Never. All processing happens locally in your browser using the Canvas API. Your files never leave your device.

What image formats are supported?

Most tools accept JPG, PNG, WEBP, and GIF. Output formats depend on the specific tool.

Is there a maximum file size?

No hard limit. Very large files (20MB+) may take a few seconds on older devices but will process correctly.

Resize Image for Instagram — All Sizes 2026

Instagram Image Size Guide 2026

Instagram displays images at different dimensions depending on the post type. Uploading at the correct size ensures your images look sharp, aren't cropped unexpectedly, and don't suffer from Instagram's automatic compression more than necessary.

Format	Dimensions	Ratio	Use Case
Square Post	1080 × 1080px	1:1	Standard feed post
Portrait Post	1080 × 1350px	4:5	Maximum feed real estate
Landscape Post	1080 × 566px	1.91:1	Wide/panoramic photos
Story / Reel	1080 × 1920px	9:16	Full-screen vertical content
Profile Picture	320 × 320px	1:1	Displayed at 110px on mobile
IGTV Cover	420 × 654px	1:1.55	IGTV thumbnail

How to Resize Images for Instagram (Step by Step)

Open our free Image Resizer tool.
Upload your photo by dragging and dropping or clicking the upload area.
Click one of the Instagram preset buttons (Square, Portrait, Story) or enter custom dimensions.
Toggle the aspect ratio lock off if you need to set width and height independently.
Preview the resized result and click Download.
Optionally, run the resized image through our Image Compressor at 85% quality to reduce file size before uploading.

Why Instagram Crops and Compresses Your Images

Instagram automatically resizes and compresses images that don't match its supported dimensions. If you upload a 4000×3000px photo, Instagram will scale it down and apply its own compression algorithm, which often produces lower quality results than if you had pre-optimized the image yourself.

By resizing to the exact recommended dimensions before uploading, you maintain control over the final appearance. Instagram's compression will still apply, but starting from the correct dimensions means less aggressive processing and better final quality.

Best Practices for Instagram Image Quality

Always upload at 1080px width minimum — Instagram won't upscale below this
Use JPEG format at 80–85% quality for photos
Use sRGB color profile (most cameras default to this)
Keep file size under 8MB (Instagram's upload limit)
For Stories and Reels, use 1080×1920px to fill the full screen
Remove EXIF metadata before uploading using our EXIF Remover for privacy

Frequently Asked Questions

What is the best image size for Instagram posts?

For standard feed posts, 1080×1080px (square) or 1080×1350px (portrait) are optimal. Instagram recommends a minimum width of 1080px for the best quality.

Will Instagram compress my images?

Yes. Instagram automatically compresses uploaded images. To minimize quality loss, upload at the recommended dimensions and use JPEG at 80%+ quality before uploading.

What file format should I use for Instagram?

JPEG is the recommended format for Instagram photos. PNG is accepted but will be converted to JPEG by Instagram. Keep file size under 8MB.

How do I resize an image for Instagram Stories?

Instagram Stories require 1080×1920px (9:16 ratio). Use our Image Resizer, enter 1080 width and 1920 height, and download the result.

Does resizing reduce image quality?

Reducing image size generally preserves quality well. Enlarging beyond the original size may reduce sharpness. Always start with the highest resolution source image available.