Free tool by Mydrop, no signup

Free YouTube description character counter

YouTube allows 5,000 characters in a description and 100 in a title.

0/ 5,000 characters
Fits on YouTube5,000 left

Hashtags 0Mentions 0Emojis 0Words 0Lines 0

YouTube counts every letter, space, emoji and line break as 1.

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Your text stays in your browser. Nothing is sent or saved. Photos and videos you add stay on your device too: nothing is uploaded.

How YouTube counts

5,000 for the description, 100 for the title

YouTube stops a description at 5,000 characters and a title at 100.

First lines before "...more"

Only the first lines show under the video. Put the summary and the most important link there.

First 3 hashtags go above the title

YouTube shows the first three hashtags from the description above the video title.

Example: “How to plan a month of social posts in one hour. Template in the description.” = 77 characters on YouTube

Limits checked on October 10, 2026, against each network's rules and the limits Mydrop's editor enforces.

Mydrop data

How long should a caption be? Past 80 characters, it barely matters.

We measured 4,848 posts on 336 accounts connected to Mydrop, over 180 days to September 2026. Each post is scored against its own account's median, so a global brand and a local shop compare fairly.

Engagement vs the account's typical post

under 80 characters702 posts−9%
80-150 characters521 posts+3%
150-300 characters914 posts±0%
300-600 characters1,632 posts±0%
600+ characters1,079 posts+1%
  • Captions under 80 characters earned 9% less engagement than the account's typical post.
  • Captions of 80 to 150 characters did best, 3% above.
  • From 150 to 600+ characters, length moved engagement by 1% or less.

Method and every Mydrop benchmark

Reference

Every character limit in one table

The limits Mydrop checks before it publishes a post, network by network.

NetworkCharacter limitSeen before "more"HashtagsHow it counts
Instagram2,200About 1255 per post1 per character
TikTok2,200 via the API (4,000 typed in the app)VariesInside the limitEmoji = 2
LinkedIn3,000About 210 (140 on phones)Inside the limit1 per character
X280 (longer with Premium)Full post shownInside the limitEmoji = 2, link = 23
Facebook63,206 (Reels: 2,200)VariesInside the limit1 per character
Threads500Full post shown1 topic tag1 per character
Bluesky300Full post shownInside the limit1 per character
YouTube5,000 (description; title 100)First linesFirst 3 show above the title1 per character
Pinterest800 via the API (500 in Pinterest's editor)VariesInside the limit1 per character
Google Business Profile1,500VariesNot used1 per character

Where the "more" cut lands depends on the screen and the line breaks, so treat those figures as a guide. The character limits are hard limits: the network refuses anything longer.

Link to this counter

Writing a guide or teaching a class? Paste this link.

YouTube Description Character Counter by <a href="https://mydropai.com/tools/youtube-description-character-counter/">Mydrop</a>

Questions

Character limits, answered

5,000 characters. Spaces, line breaks and emojis all count.

100 characters for a video title.

The first 3 hashtags in the description show above the video title.

Only the first lines of the description. Put the summary and the most important link there.

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