How do I post to all social media at once for free?

PostWire's free plan publishes one brand with all of its networks, 30 posts a month, no card, TikTok included. Buffer's free plan covers 3 channels with 10 scheduled posts each. Both let you publish to several networks from one place.

Can I post the same video to TikTok, Instagram and YouTube at once?

Yes, provided it is a video file and not a photo or text — TikTok and YouTube reject anything else. Export without a watermark: Instagram suppresses reach on video that carries another platform's watermark.

What is the character limit for each social network?

X 280, Bluesky 300, Mastodon 500 (the server can change it), Threads 500, Facebook 2,000, Discord 2,000, Instagram and TikTok 2,200, LinkedIn 3,000, Telegram 4,000, YouTube 5,000 in the description, Reddit 10,000 in the body.

How to post to multiple social media accounts at once

Short answer. There are five practical ways: paste it yourself, use a scheduler, use each platform's native cross-post, wire the APIs together, or use a tool that writes a native version per network. The last one matters because the same text does not fit — TikTok caps at 2,200 characters and demands a video, X stops at 280, and Instagram refuses text-only posts entirely.

Limits and prices checked against live APIs and vendor pricing pages on 23 August 2026.

The five ways, honestly

Approach	Cost	Where it breaks
Paste manually	Free	15-20 minutes per post, and the same text underperforms on at least two networks
Native cross-post (IG→FB, TikTok→IG)	Free	Only a few pairs, and watermarked video gets suppressed
A scheduler	$5-99/mo	Most publish identical copy everywhere unless you rewrite it by hand
Wire the APIs yourself	Weeks of approvals	TikTok audit, Meta app review, token refresh, per-platform rules
A tool that writes one version per network	Free-$29/mo	You still need a video for TikTok and YouTube

The rules that decide whether your post lands

Before you send the same thing everywhere, these are the hard constraints. They are not preferences — the APIs reject posts that break them.

Network	Character limit	Media required	What the algorithm rewards
TikTok	2,200	video only	Max 5 hashtags, in the caption — comments are invisible to the algorithm.
Instagram	2,200	photo or video, never text-only	Short captions under ~100 chars get more engagement; max 5 hashtags at the end.
YouTube	5,000	video only	Title max 100 chars — keyword in the first 40. 5-8 backend tags.
LinkedIn	3,000	optional	Only ~210 chars show before the fold. External links suppress reach — put them in a comment.
X	280	optional	The whole post is the hook. Links reduce reach; put them in a reply.
Facebook	2,000	optional	40-80 chars peaks engagement; mobile cuts at ~125.
Threads	500	optional	Conversational; long posts get collapsed.
Bluesky	300	optional	300 characters total, links included.
Mastodon	500	optional	500 on most instances, but the server decides — some allow more.
Reddit	10,000	optional	Title max 300 chars. Each subreddit has its own rules and they are enforced by humans.
Telegram	4,000	optional	4096 characters per message.
Discord	2,000	optional	2000 per message on a free server.

Why identical text underperforms

Every network trains its ranking on what its own users engage with. A LinkedIn post that opens with a confession and closes with a question does well there and reads as overwrought on Bluesky, where 300 characters and lowercase is the register. Hashtag conventions differ by an order of magnitude: five on TikTok inside the caption, three on LinkedIn at the end, zero to two on X. Posting one shape everywhere means being wrong in most places at once.

Start free — 1 brand, all its networks, no card

30 posts a month on the free plan. Starter is $9/month for three brands and 300 posts; Pro $29 for ten brands and 2,000. Flat per-account pricing — no per-network fee.

Questions people ask

How do I post to all social media at once for free?: PostWire's free plan publishes one brand with all of its networks, 30 posts a month, no card, TikTok included. Buffer's free plan covers 3 channels with 10 scheduled posts each. Both let you publish to several networks from one place.
Can I post the same video to TikTok, Instagram and YouTube at once?: Yes, provided it is a video file and not a photo or text — TikTok and YouTube reject anything else. Export without a watermark: Instagram suppresses reach on video that carries another platform's watermark.
What is the character limit for each social network?: X 280, Bluesky 300, Mastodon 500 (the server can change it), Threads 500, Facebook 2,000, Discord 2,000, Instagram and TikTok 2,200, LinkedIn 3,000, Telegram 4,000, YouTube 5,000 in the description, Reddit 10,000 in the body.