Specs and limits

YouTube specs and limits

YouTube text is limited to 5,000 characters, counted by code points. This page lists every text, media and posting rule 1Post checks for YouTube: counts, sizes, lengths, threads and the daily cap. Where YouTube publishes a figure on its own page we cite it with the date we read it.

Also:Schedule YouTube posts Social media posting limits by network Social media posting limits table

Updated 2026-10-23

What 1Post checks for YouTube

Rule	What 1Post checks
Text limit	5,000 characters, counted by code points
Title limit	100 characters
Description limit	5,000 characters
Tags	500 characters in total
Media accepted	Video
Videos per post	1
Threads	No
First comment	No
Posts per day, per connected account (1Post)	10

These are the limits 1Post applies in the composer, so a post that passes is not refused for them when it is sent. A network can still refuse a post for reasons outside these rules, such as its content policies.

What YouTube publishes

Fact	Source
The tag list can hold 500 characters in total. Commas between tags count, and a tag with a space counts two extra characters for the quotation marks YouTube adds.	YouTube Data API: videos resource, read 2026-10-22

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Questions

How is YouTube text counted?

YouTube text is counted by code points. The character counter applies the same rule.

Where do these YouTube limits come from?

They are the limits 1Post checks before a post is sent. Figures the network publishes on its own page are cited above with the date read; the rest are checks 1Post sets.

How often is this page updated?

When a network changes a rule or we read a newer figure, the page changes with it. The date at the top shows the last change.