The desktop social media scheduler with a built-in AI copywriter and hashtag strategist. Posts go straight from your computer to Instagram, Threads, TikTok, X, Facebook, and YouTube Shorts.
Powered by Claude. Trained to write the way creators actually post — punchy hooks, on-brand captions, hashtag sets that target your niche.
Write once. Tweak per platform if you want. Schedule everywhere. Smart Post Studio handles the API differences so you don't have to.
No cloud uploads. No third-party hosting. Posts go directly from your desktop to the social platforms. The way it should have always worked.
Every other scheduling tool uploads your video to their cloud first, then transcodes it to a lower resolution before sending it on. Smart Post Studio posts your original file directly from your desktop to each platform's API. No middleman storage. No quality loss. No file-size cap below what the platform itself accepts.
| Buffer | Hootsuite | Later | Smart Post Studio | |
|---|---|---|---|---|
| Instagram Reelsmax video size | 300 MB | 100 MB | 100 MB (compresses above) | Instagram's native cap (≈ 250 MB) |
| YouTube Shortsmax video size | 10 GB | — | — | 256 GB (direct to Google) |
| TikTokmax video size | 1 GB | varies | varies | TikTok's native cap (≈ 287 MB) |
| LinkedIn videomax resolution | 720p (downscaled) | 1080p | 1080p | Original resolution |
| Default resolution cap | 1080p (transcoded H.264) | 1080p | 1080p (compresses above) | No cap. 4K, 8K, anything. |
| ProRes / RAW source | Not supported | Not supported | Not supported | Passes through unchanged |
| Where your video is stored | Their cloud (AWS) | Their cloud | Their cloud | Your computer. Nowhere else. |
| Transcoding before sending | Always | Always | Always | Never |
Sources: Buffer support docs (last updated March 31, 2026), Hootsuite video file requirements, Later uploading guide. Caps verified May 2026 — current as of publish.
Buffer's own documentation: "The video you upload will be converted to MP4 encoded with H264, and a maximum resolution of 1920 × 1080 pixels (HD). Larger files are likely to be compressed." Their LinkedIn cap is even tighter — 1280 × 720 (720p) before sending.
— Buffer Help Center, "Sharing videos through Buffer," last updated 2026-03-31 · verify
You're a one-person team running content across Instagram, Threads, TikTok, and more. Smart Post Studio is the desktop tool that gives you back the hours — schedule a week in 20 minutes, not all day. Native Fanvue posting is coming soon.
7-day free trial on every plan. No credit card to start.
Download Smart Post Studio for Mac or Windows and start your 7-day free trial — no credit card required.
