Make your life much easier.

Preview has been officially reviewed and approved by Instagram. Therefore, it is completely safe to use for your account.

You can:

  • Auto-post Instagram Reels, photos, videos, carousels
  • Plan your Reels feed
  • Plan your main grid
  • Test different cover images
  • And more.

Do it on your phone or computer.

Let’s start.

How to auto-post Instagram Reels with Preview App on the phone

Here’s how to automatically schedule a Reels with Preview App (see images below):

  • Press on the Reels tab
  • Press + to upload your Reels video
  • Drag and drop to change the order of the video in the feed
  • Press on the video
  • Open the caption
  • Prepare your caption / hashtags
  • Turn on “Schedule Post”
  • Turn on “Auto-post”
  • Turn on “Show in Feed” if you want to see your Reels in your main feed
  • Optional: Press on “Edit” to change your video thumbnail
  • Optional: Drag and drop the Reels in your main feed to see exactly where you want to post it

How to auto-post Instagram Reels with Preview App on Desktop

You can do the same thing on Preview Desktop.

I will show you extra tricks too.

To auto-post Instagram Reels on Desktop with Preview (see the images below):

  • Click on the Reels tab
  • Click +
  • Upload your Reels
  • Drag and drop to change the order of the video in the feed
  • Click on the video
  • Click on the “Caption” button
  • Write your caption / hashtags
  • Click on “Schedule”
  • Turn on “Show in Feed” if you want to see your Reels in your main feed
  • Optional: Press on “Edit” to change your video thumbnail
  • Optional: Drag and drop the Reels in your main feed to see exactly where you want to post it

The ideal Instagram Reels dimensions and duration

Reels can be 3 seconds minimum and 15 minutes maximum.

However, Instagram says that:

Reels that are 3 to 90 seconds and 9:16 aspect ratio are eligible to appear in the Reels tab.

They are also more likely to be selected by the Algorithm to appear on the Reels Explore Page.

Therefore, if you want your Reels to appear in your Reels tab, make sure it is between 3-90 seconds long, and has an aspect ratio of 9:16 (which is 1080×1920 px).

However, if you don’t mind NOT appearing on the Reels tab, you can post a Reels that is longer than 90 seconds, or that has a different aspect ratio / dimension.

For example, you can post a:

  • Square Reels: 1080x1080px (1:1 aspect ratio), or
  • Portrait Reels: 1080x1350px (4:5 aspect ratio), or
  • Landscape Reels: 1080px by 566px (1.91:1 aspect ratio)

These Reels size will make you appear on:

  • Your followers’ Home Feed
  • The Explore Page
  • But NOT on the Reels tab

At the moment, we are not sure if these Reels sizes would appear on the Reels Explore Page.

Can you post square or rectangle Reels videos?

As we explained in the previous section, Instagram might not show a square or rectangle Reels in the Reels tab. And the Algorithm might not select your Reels to appear on the Explore or Reels page.

So what can you do?

Preview will have the feature to edit your videos soon. We will share the tutorial soon.

For now, upload your square or rectangle video on a 1080x1920px background. Then save this taller video and upload it in Preview.

One way to do it is by using your Instagram Story editor:

  • Open your Insta Story
  • Add a background color, photo or video
  • Use the “Camera Roll” sticker to add your video on top of the background
  • Save the final design (press on the three dots “…” and “Save”)
  • Upload it in Preview

Super quick and easy!

Can you auto-post Reels with your own cover image from your camera roll?

If you are using the auto-post feature, you cannot upload your own cover image from your camera roll.

Why?

Because Instagram does not allow other apps or websites to auto-post with custom cover images from your camera roll yet.

However, if you manually post your Reels from Preview to Instagram, you can upload your own cover image in Preview. This is great if you want to test different cover images.

Good news: If you really want to auto-post with a custom cover image – there’s a trick. See the next section.

Custom cover image trick

What if you really want to use a custom cover image?

Use this trick:

  • Create a cover image
  • Open your Instagram Reels editor
  • Add the cover image as the first second of the video, for 1 second (or even less)
  • Instagram will use the first second of your video (your custom cover image) as the thumbnail

People will not notice. It is a trick many content creators use.

How many Reels can you auto-post with Preview?

As many as you want. There is no limit per day, week or month.

However, Instagram does notย recommend auto-posting more than 25 posts a day. Your account could get flagged or blocked.

That’s it!

Click here to use Preview.

And have fun auto-posting your Reels!