What is Instagram's maximum image upload size?

Instagram accepts images up to 8MB. However, Instagram internally recompresses any uploaded JPEG above roughly 1–2MB before displaying it, which can reduce quality. Pre-compressing to under 1MB gives you control over that quality.

What are the best image dimensions for Instagram?

Square posts: 1080×1080px. Portrait (recommended): 1080×1350px. Landscape: 1080×566px. Stories and Reels: 1080×1920px. Using these exact dimensions prevents Instagram from cropping or rescaling your image.

Why do my Instagram photos look blurry after uploading?

Instagram recompresses images aggressively when file sizes are large. Pre-compressing at high quality (85%) to under 1MB before uploading prevents this second round of compression and keeps your images sharp.

Should I use JPG or PNG for Instagram?

JPG is recommended for photographs. Instagram converts PNG to JPG during upload, which can introduce artifacts. Use JPG from the start for best results.

Can I compress images for Instagram on my phone?

Yes. FixTools works in mobile browsers on both iPhone and Android. Tap to upload from your camera roll, compress, and download back to Photos for uploading to Instagram.

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Compress Image for Instagram

Instagram automatically recompresses uploaded images to JPEG at around 60–70% quality if they exceed its internal size limits. This can visibly degrade your photo. Pre-compressing your image using FixTools lets you control the output quality and keep your Instagram posts looking sharp.

⚡ Use Tool Now How it works

Cost: Free forever
Sign-up: Not required
Processing: In your browser
Privacy: Files stay local

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Avoid Instagram's auto-recompression

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Control your own image quality

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Ideal dimensions: 1080×1080 (square), 1080×1350 (portrait)

Image Tool

Image Compressor

All processing happens in your browser — your files are never uploaded to any server.

🚀Open Image Compressor

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How to use this tool

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Compress to 85% quality and ensure the image is at the correct Instagram dimensions. Instagram accepts files up to 8MB but internally recompresses anything above ~1–2MB.

How It Works

Step-by-step guide to compress image for instagram:

1
Resize to Instagram dimensions
Use the Image Resizer to set your image to 1080×1080px (square post), 1080×1350px (portrait), or 1080×566px (landscape). Instagram displays images at these resolutions.
2
Compress to 85% quality
Upload to the Image Compressor and set quality to 85%. This typically results in a file of 200–400KB, small enough that Instagram will not noticeably recompress it.
3
Download and upload to Instagram
Download the compressed image. On iPhone, it saves to Photos. Upload directly to Instagram from the Photos app.