TikTok
Schedule TikTok videos on the days you are not filming
Batch your edits, line the videos up on the calendar with the rest of your channels, and let Postocial publish each one at the time you choose.
Free for 7 days. Card required; cancel before the trial ends and you will not be charged.
- TikTok
TikTok in Postocial
Batch your TikTok videos, publish them all week
Film when you have the energy, then let the schedule do the posting. Every video goes through the same composer as your other networks.
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Batch once, post all week
Upload a week of finished videos in one go, then place them on the calendar or add them to your queue of time slots.
Scheduling and calendar -
Photo posts, too
Schedule photo carousels of up to 35 images next to your videos, each with a title of up to 90 characters.
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Caption ideas from AI
Ask the AI writing assistant for a caption and a short set of hashtags, then edit them so they sound like you.
AI assistant -
One clip, three networks
Send the same vertical video to TikTok, YouTube Shorts and Instagram from one composer, each with its own caption.
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TikTok's post settings
Choose who can watch each video, allow or turn off comments, duets and stitches, disclose content that promotes your brand or a partner, and add the AI-generated content label.
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Best times to post
Use the weekday-by-hour heatmap and the next best time for your account to decide when each video goes out.
Analytics -
More from your bio link
Point your TikTok bio link at a Postocial bio page with all your links, a QR code and page and link analytics. Included on Premium and higher plans.
Link in bio -
Approval before it posts
Send drafts to a teammate or a brand partner for approval, so nothing goes live before the right person signs off.
Example
A sample week on TikTok
How a home cook who films on Sundays might spread the work across a week.
| Day | Post | Set up in Postocial |
|---|---|---|
| Monday | Recipe video filmed on Sunday | Caption drafted with AI and edited, then queued for the evening slot |
| Wednesday | Same recipe cut for YouTube Shorts and Instagram | One upload, with a separate caption for each network |
| Friday | Quick tip answering a common question | Scheduled for the best time the heatmap suggests |
| Sunday | Links to the full written recipes | Bio page updated, so the TikTok bio link always points to this week (Premium and higher plans) |
Best practices
TikTok best practices
What helps a scheduled video do well, within the limits TikTok sets for posts made through its API.
- Hook in the first seconds. Open with the payoff or the question, not a logo or a slow intro.
- Caption for search. Use the plain words your audience would type into TikTok search, with the most specific one first.
- Check your length cap. Every creator can post 3-minute videos, and some accounts can post 5 or 10 minutes. Confirm yours before you schedule a longer cut.
- Film vertical at 1080 × 1920. It fills the screen and needs no cropping.
- Keep hashtags to a few. Hashtags count toward the caption limit, and a handful of relevant ones beats a long list.
- Caption characters (API)
- 2,200
- Video ratio
- 9:16
- Longest API video
- 10 min
- Bio characters
- 80
Platform limits
TikTok limits and media specs
The limits and sizes TikTok sets for text, images and video, with a source for each. Platforms change them often, so check before a big campaign.
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TikTok character limits
Field Maximum Video caption (API) 2,200 characters Photo post title 90 characters Comment 150 characters Bio 80 characters Name 30 characters Username 24 characters About the text limit. The Content Posting API caps video captions at 2,200 UTF-16 runes. Photo posts have a title of up to 90 runes and a description of up to 4,000. Captions written in the TikTok app are widely reported at 4,000 characters (secondary sources), but anything posted through the API is held to 2,200. Hashtags and @mentions are part of the caption text.
Hashtags. The API picks out hashtags and @mentions in the caption, separated by spaces or new lines, and they use caption characters. TikTok's posting API docs give no hashtag count limit. A few relevant tags work better than long lists.
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TikTok image sizes
Placement Size Aspect ratio Photo post imageAPI photo posts accept JPEG or WebP, up to 20 MB each and at most 1080p, with up to 35 images per post. Images can only be pulled from verified URLs. 1080 × 1920 px 9:16 Profile picturePer Hootsuite. 200 × 200 px 1:1 -
TikTok video specs
Placement Max length Max file size Aspect ratio Video posted via APIEvery creator can post 3-minute videos, and some accounts can post 5 or 10 minutes. The API accepts up to 10 minutes, and each account's cap is in max_video_post_duration_sec from creator info. MP4 (recommended), WebM or MOV. H.264 recommended, with H.265, VP8 and VP9 also accepted. 23 to 60 fps, 360 to 4096 px per side, up to 4 GB. 10 minutes 4 GB 9:16 (1080x1920 per Hootsuite) Video uploaded in the TikTok appSecondary sources only: TikTok tested 60-minute uploads in 2024 and availability varies by account. In-app recording is reported at up to 10 minutes. 1 hour Not stated 9:16 -
Sources
Checked on . Where TikTok publishes no number, the notes in the tables say where a figure comes from.
Get connected
How to connect TikTok
All you need is the TikTok account you want to publish to. The connect accounts guide has the details. Managing an account for a client? Send a client invite link so they can connect it themselves, without sharing a password.
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Connect TikTok
Sign in with TikTok and allow Postocial to publish videos to your account.
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Know your length cap
TikTok sets a maximum video length per account, from 3 up to 10 minutes for posts made through its API.
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Set your time slots
Pick the weekly times you want videos to go out, so the queue can fill them in order. See the posting schedule guide.
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Schedule your first video
Upload the video, write the caption and schedule it, or send it for approval first.
Free tools
Free TikTok tools
Free browser tools for getting posts ready before you schedule them.
TikTok character counter
Check a TikTok caption against the 2,200-character limit for posts made through the API.
TikTok image resizer
Resize images to TikTok's 9:16 format or to a square profile picture.
TikTok font generator
Style your TikTok bio, which holds 80 characters, with Unicode bold or script letters.
Can I schedule TikTok videos with Postocial?
Yes. Upload a finished video, write the caption, pick a time or add it to your queue, and Postocial publishes it to your TikTok account.
How long can a TikTok caption be?
Posts made through TikTok's API, which is how Postocial publishes, take captions of up to 2,200 characters, and hashtags and mentions count toward that total. The TikTok app itself is widely reported to allow 4,000.
How long can my TikTok videos be?
TikTok's API accepts videos of up to 10 minutes and 4 GB, but each account has its own cap: every creator can post 3-minute videos, and some can post 5 or 10 minutes. Videos can be MP4, WebM or MOV, and MP4 is recommended.
Can I post the same video to TikTok, YouTube Shorts and Instagram?
Yes. Add the video once in the composer, select the accounts and give each network its own caption before you schedule it.
Do I get TikTok analytics in Postocial?
Yes. See how your TikTok account and each video perform, with the metrics TikTok makes available, next to your other accounts. TikTok accounts also get the best-times heatmap and a next best time to post.
Film on Sunday, post all week
Connect your TikTok account, upload a batch of videos and let your posting schedule handle the rest.
A card is required to start the 7-day free trial. When the trial ends, we charge your card for the plan you picked, unless you cancel before.