- Facebook Reels are vertical videos up to 60 seconds long, reaching audiences beyond your existing followers.
- Recommended resolution is 1080 × 1920 px at a 9:16 aspect ratio, per Meta's documentation.
- Create Reels on mobile via the Facebook app or on desktop through Meta Creator Studio.
- AI tools generate cover images, resize assets to 9:16, and write captions in seconds.
- Coinis publishes finished Reels directly to Facebook and Instagram with one click, no ad spend required.
What Are Facebook Reels?
Facebook Reels are short, fullscreen vertical videos. They appear in the main Feed, the Reels tab, and on public profiles, reaching people who may never have heard of your brand.
Definition and key characteristics
Reels run up to 60 seconds. They play in a 9:16 vertical format built for mobile screens. Viewers can like, comment, share, and remix public Reels. Each interaction extends organic reach without any ad spend.
Why Reels matter for reach and engagement
Reels reach people who don't follow your page yet. Facebook surfaces them based on interest signals, not follower graphs. For a brand with a small or mid-size following, that's a direct path to new audiences. No paid boost required.
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Facebook Reel Specifications and Requirements
Getting specs right prevents rejected uploads and quality loss on publish.
Aspect ratio and resolution
Per Meta's documentation, the recommended resolution for Facebook Reels is 1080 × 1920 px at a 9:16 aspect ratio. That fills a phone screen top to bottom. Keep text and key visuals in the center third of the frame. Elements near the edges get cropped on different devices.
Video length and format
Maximum length is 60 seconds. Facebook accepts MP4 and MOV files. Aim for 1080p or higher. Lower-resolution footage will still publish, but quality drops noticeably on larger screens.
Audio and captions best practices
Music drives engagement on Reels. Facebook's built-in audio library lets you browse by genre and theme directly in the app. Captions help viewers who scroll with sound off. Caption text in Creator Studio supports over 60,000 characters, but only the first two to three lines appear before truncation. Front-load your strongest line.
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How to Create a Facebook Reel on Mobile
The Facebook app covers the full workflow from capture to publish in one place.
Using the Facebook app to shoot and edit
Open the app. Tap the "+" icon at the top of your Feed. Select "Reel." Record new footage or upload clips from your camera roll. The built-in editor lets you trim clips and stitch multiple takes into a single video.
Adding music and effects
Tap the Audio icon to browse Facebook's music library. Add text overlays, stickers, and filters from the editing toolbar. Keep visual effects tight. Too many competing elements pull attention away from your message.
Publishing and scheduling
Tap "Next" when editing is done. Write your caption, set your audience, and choose "Share Now" or pick a scheduled time. Done.
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How to Create a Facebook Reel on Desktop
Meta Creator Studio gives you more control over trim, captions, and scheduling than the mobile app.
Using Meta Creator Studio
Go to business.facebook.com and open Creator Studio. Select your Page. Choose "Create Post" and pick "Reel." Upload pre-edited video files directly from your computer.
Uploading and trimming video
Upload your MP4 or MOV file. Creator Studio includes a basic trim tool. If your footage is horizontal, you can resize to 9:16 within the platform, but quality can degrade on wide-to-vertical conversions. Start with vertical footage whenever possible.
Resizing and caption workflow
After trimming, add your caption. The first two to three lines are visible before "See more." Write those lines like a hook. Schedule your publish time or go live immediately.
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Using AI to Accelerate Reel Creation
AI cuts the gap between having an idea and having a finished, published Reel.
Generating cover images with AI
A strong cover image matters. It appears in the Reels tab before a viewer hits play. Coinis's Image Ads workflow generates cover images from a product URL in seconds. Premium AI models handle the visual generation. You review the options and pick the best fit.
Editing and resizing with AI tools
Coinis Revise handles the edits that eat time. Smart Resize converts a square or landscape asset to 9:16 in one click. AI Erase removes unwanted objects from a frame. Edit text on image lets you swap copy without rebuilding the whole asset. Faster than manual editing for the vast majority of creative tasks.
Creating captions and copy
AI Copywriting in Coinis generates Reel captions from your Brand Profile. It knows your tone, your product, and your audience. You get a hook, a body line, and a CTA in one pass. Edit if needed, then paste directly into Creator Studio or the Facebook app.
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Publishing and Optimizing Your Reel
A few decisions at publish time affect how far your Reel travels.
Remix settings and audience control
By default, Facebook enables remixing for public Reels. Any user can build on your content. That's useful for awareness. To disable it, toggle "Remix" off in publish settings before you post.
Best times to post
No universal best time exists. Check your Page Insights for when your audience is most active. Test posting 30 minutes before that window. Consistency matters more than precision.
Monitoring performance
Watch reach, plays, and average watch time. High reach with low watch time means the hook isn't landing. Low reach overall often points to metadata, not the video. Refine captions and covers before changing the video itself.
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Or post it for free.
Coinis publishes to Instagram and Facebook in one click. Posts. Stories. Reels. Scheduled or live. Same AI creatives. Same Brand Profile. No ad spend required.
Free on every plan. No credit card to start.
15 AI tokens a month. Organic publishing free forever.
Frequently Asked Questions
What is the best video size for Facebook Reels?
1080 × 1920 px at a 9:16 aspect ratio. That matches Meta's recommended spec and fills a phone screen from top to bottom.
Can I schedule Facebook Reels from a desktop?
Yes. Meta Creator Studio lets you upload, trim, add captions, and schedule Reels from your computer. Pick a date and time before you hit publish.
Do Facebook Reels reach people who don't follow my page?
Yes. Facebook surfaces Reels based on interest signals, not follower relationships. That makes them one of the better organic reach tools available to business pages.
Can AI tools help me create Facebook Reels faster?
Yes. AI can generate cover images, resize existing assets to 9:16, remove unwanted elements from frames, and write captions. Coinis handles all of those tasks, then publishes directly to Facebook.