All images that are posted to Instagram are compressed by Instagram on their end. Tailwind does not compress any images, however. We send the images exactly as you upload them to Instagram.
This chart shows the display resolution of images after Instagram compresses them:
Be sure upload images with resolutions as big as or larger than the ones listed in this graphic. Usually, the larger your image the better the quality will be!
If you're noticing that your images look lower quality or blurry on a phone or a slower internet connection - please switch to another device with a faster Internet connection and see if the quality is still low. Instagram will automatically display lower resolution images when you're connecting with a lower speed connection or a lower spec device.