Upload your Shorts once and FastSocial.ai publishes them automatically at peak viewing times — with #Shorts added automatically so YouTube classifies them correctly.
70B
Daily Shorts views on YouTube
2.7B
Monthly active YouTube users
2.5×
Subscriber growth vs long-form only
Under 60s
Maximum Short length for full distribution
Upload once. FastSocial does the rest — including the #Shorts tag.
Upload any vertical video under 60 seconds. MP4 at 9:16 aspect ratio (1080×1920px) gives the best results. We accept MP4 and MOV formats.
Add a description and choose a publish time — or let AI write your description and FastSocial pick the peak viewing window for your audience.
FastSocial.ai uploads your video via the YouTube Data API and auto-appends #Shorts so it lands in the Shorts feed, not the regular video feed.
The difference between channels that grow and channels that stall is consistency.
#Shorts added automatically
FastSocial.ai automatically appends #Shorts to every YouTube video description — ensuring YouTube classifies it as a Short and distributes it in the dedicated Shorts feed.
Post at peak viewing times
YouTube Shorts perform best when posted at times when your audience is actively browsing. FastSocial.ai schedules your Shorts during these windows automatically.
Daily posting without daily effort
Channels that post Shorts daily grow subscribers 2.5× faster. Batch-create a week of content, schedule it forward, and FastSocial maintains your daily cadence.
Cross-post from TikTok & Reels
Already creating short-form video for TikTok or Instagram? FastSocial.ai lets you schedule the same video across YouTube Shorts, TikTok, and Instagram Reels simultaneously.
AI-generated descriptions
Great descriptions with relevant keywords help YouTube surface your Shorts to the right audience. Our AI writes SEO-optimized descriptions for every Short automatically.
Official YouTube Data API
FastSocial.ai connects via the official YouTube Data API v3 — the only Google-approved method for automated publishing. Your channel stays safe and compliant.
What separates Shorts that get millions of views from those that get ignored.
Videos over 60 seconds don't qualify as Shorts and won't appear in the Shorts feed. Under 30 seconds performs even better — YouTube's internal data shows completion rate drops significantly above 30 seconds.
YouTube's algorithm measures audience retention from the first second. Open with your most compelling moment — a surprising fact, a bold claim, or an immediate visual hook — to keep viewers watching.
Shorts must be vertical to appear in the Shorts shelf. Horizontal videos uploaded with #Shorts are treated as regular uploads. Record and export at 1080×1920px for maximum quality.
YouTube's algorithm learns from your posting cadence. Three Shorts every week, reliably, builds more algorithmic momentum than bursts of 10 followed by silence for a month.
Shorts that are part of a recognizable series — consistent format, music, or recurring segment — perform better over time because viewers return for the next episode. Build a repeatable format.
Turn your most-watched long-form video moments into Shorts. Clip the best 30 seconds, add captions, and schedule as a Short. This drives Shorts viewers back to your full-length channel.
Upload your videos, set a schedule, and FastSocial.ai handles the rest — including the #Shorts tag that gets you into the feed.
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