WordCounter

Reddit Character Counter

Reddit character counter. Verify submission post titles (300), self-post bodies (40,000), and comment limits (10,000) with live Markdown parsing.

Post TitleLimit: 300
0/ 300
300 remaining for title
Post BodyLimit: 40,000
0/ 40,000
40,000 remaining for post body
0 chars•0 words
Comment
0/ 10,000
Username
0/ 20
Flair text
0/ 64
Sidebar widget text
0/ 10,000
Subreddit Sidebar (old.reddit)
0/ 10,240
Wiki Page (content)
0/ 524,288
Check your Reddit post title (300 character limit), text post body (40,000 characters), comments (10,000), usernames, and subreddit sidebar widgets in real time.

Mastering Reddit Character Limits: 300-Char Titles, 10k Comments & 40k Post Bodies

Known as the "front page of the internet," Reddit receives hundreds of millions of monthly visitors exploring specialized communities (subreddits) covering technology, investing, hobbies, career advice, and global news. Because Redditors place tremendous value on thoughtful, high-signal contributions, drafting your submissions carefully is essential. Exceeding platform rules leads to immediate submission rejection or AutoModerator removals. The reddit character limit title is fixed at 300 characters, while the reddit character limit comment caps at 10,000 characters. Our free reddit character counter and reddit character limit checker prevents frustrating submission errors before you post.

The 300-Character Title Limit & Feed Readability

How to craft engaging Reddit post titles within character caps:

  • Hard Cap (300 Chars): Reddit's submission form will disable the "Post" button if your title exceeds 300 characters. On mobile apps, titles longer than 150 characters often look cluttered, so keeping titles concise (60–120 characters) generally maximizes upvotes.
  • Subreddit-Specific Rules: Many communities (such as r/AskReddit, r/todayilearned, or r/science) enforce strict tag syntax (e.g. [OC], [Question], or TIL), which also counts toward your 300 characters.
  • Avoiding Clickbait: Reddit communities actively penalize sensationalized or vague clickbait. Summarize the core takeaway directly in the title.

Comments (10,000) & Text Self-Posts (40,000)

Key dimensions across Reddit content formats:

  • Comments (10,000 Chars): 10,000 characters provides roughly 1,500 to 2,000 words—plenty for in-depth technical answers, legal analysis, or tutorials. If your comment exceeds 10k, split it into Part 1 and Part 2 replies.
  • Text Post Bodies (40,000 Chars): Reddit self-posts allow up to 40,000 characters (approx. 6,000 to 8,000 words), making it possible to publish full guides, AMAs, and extensive research papers.
  • Markdown Characters: Remember that raw characters used for bolding, bullet lists, tables, and hyperlinks count toward the total character limit.

Reddit Character Limits Reference Table (2026)

Reddit ElementMaximum Character LimitEstimated Word CountBest Practice & Recommendation
Post Submission Title300 characters~40–50 wordsKeep between 60–140 chars for optimal mobile reading.
Post Body (Self-Post)40,000 characters~6,000–8,000 wordsUse Markdown headings (##) and TL;DR summaries.
Comment Reply10,000 characters~1,500–2,000 wordsIf exceeding limit, split into sequential replies.
Profile "About" Bio200 characters~30–35 wordsHighlight your credentials, subreddit roles, or social links.
Subreddit Description500 characters~75–90 wordsAppears in search snippets and subreddit info sidebar.
Subreddit Sidebar (Old/New)10,240 characters~1,500–2,000 wordsUsed for comprehensive community guidelines and rule sets.

Frequently Asked Questions

What is the reddit character limit for post titles?

The reddit character limit title is strictly 300 characters across all subreddits. Titles cannot be empty and cannot exceed 300 characters (including spaces and punctuation). Many popular subreddits enforce even tighter custom rules via AutoModerator.

What is the reddit character limit for comments and text posts?

Reddit comments have a limit of 10,000 characters (approx. 1,500–2,000 words). Reddit text post bodies (self-posts) have a generous maximum character limit of 40,000 characters.

What is the character limit for Reddit user profile bios?

Reddit user profile bios ("About") allow up to 200 characters. Profile display names allow up to 30 characters, while usernames (@u/handle) allow between 3 and 20 alphanumeric characters.

Does Reddit Markdown syntax count toward the character limit?

Yes. When writing posts or comments on Reddit using Markdown mode, formatting symbols such as asterisks for bold (`**text**`), hash symbols for headers (`#`), code blocks, and markdown links (`[text](url)`) count toward the character limit.

What happens if a Reddit post or comment exceeds the character limit?

Reddit will display an error message stating "This is too long (max: 10000)" or "Title must be between 1 and 300 characters" and will reject the submission until you trim the excess text.