Reddit Post Character Limit: Titles, Comments & Flairs (2026)

I've been on Reddit for years, and I still remember the frustration of crafting the perfect post title only to find out it was too long. Or typing out a detailed comment and hitting the character wall. Reddit's limits aren't always obvious until you hit them.

So here's everything I've learned about Reddit's character limits — from post titles to comments to those user flairs that never seem to fit what you want to say.

Character Limit Overview

Here's the reference I keep handy:

Post Title Limits: 300 Characters

Every Reddit post requires a title, and you have up to 300 characters to work with. This limit applies universally across all post types:

• Text posts (self posts)
• Link posts
• Image posts
• Video posts
• Poll posts
• Crosspost titles

Best Practices for Reddit Titles

While 300 characters gives you plenty of room, effective Reddit titles are typically much shorter. Research suggests titles between 60-80 characters tend to perform best. Consider these tips:

• Front-load important information: Put key words at the beginning since mobile apps may truncate long titles
• Be specific: Vague titles get less engagement than clear, descriptive ones
• Follow subreddit rules: Many subreddits have specific title formatting requirements
• Avoid clickbait: Reddit users typically downvote misleading or sensationalized titles
• Include context: For discussion posts, provide enough context in the title to spark conversation

What Counts in Title Character Limit

Everything in your title counts toward the 300 character limit:

• All letters, numbers, and spaces
• Punctuation marks
• Special characters and symbols
• Emojis (which may count as multiple characters)
• Square brackets for tags like [OC] or [Serious]

Text Post Body: 40,000 Characters

Reddit text posts (also called self posts) allow up to 40,000 characters in the body. This generous limit makes Reddit ideal for:

• Long-form storytelling and creative writing
• Detailed guides and tutorials
• In-depth discussions and analyses
• Comprehensive reviews
• AMAs (Ask Me Anything) with detailed responses

Making the Most of Long Posts

Even with 40,000 characters available, readability matters. Here are tips for longer posts:

• Use headers: Break up content with Markdown headers (# H1, ## H2)
• Add a TL;DR: Include a summary at the end for readers who want the quick version
• Use paragraphs: Break text into digestible chunks
• Include lists: Bullet points improve scannability
• Consider a table of contents: For very long posts, link to sections

When to Split Posts

If your content exceeds 40,000 characters or would benefit from being broken up:

1. Create a series with Part 1, Part 2, etc.
2. Link between posts for navigation
3. Consider cross-posting to relevant subreddits
4. Use comments to add supplementary information

Comment Character Limit: 10,000

Reddit comments have a 10,000 character limit, which is sufficient for most discussions. This applies to both top-level comments and replies in threads.

Effective Comment Strategies

While you can write lengthy comments, engagement often favors conciseness:

• Lead with your main point: Don't bury the key insight
• Use formatting: Markdown helps organize longer comments
• Quote relevant parts: Use > to quote the content you're responding to
• Edit for clarity: Redditors appreciate well-written, thoughtful comments

When 10,000 Characters Isn't Enough

If you need more space than a single comment allows:

• Reply to your own comment with continuation
• Create a linked text post with full details
• Use external hosting for detailed content like Google Docs
• Consider whether all the detail is necessary

Flair Character Limits

Reddit uses flairs to categorize posts and identify users. Understanding flair limits helps you express yourself effectively.

User Flair (64 Characters)

User flairs appear next to your username in subreddits that enable them. With 64 characters, you can:

• Show your team affiliation in sports subreddits
• Display your credentials or expertise
• Add personality with custom text
• Include emojis (if the subreddit allows)

Keep in mind that subreddit moderators control flair options. Some subreddits have preset flairs only, while others allow custom text within the 64 character limit.

Post Flair (64 Characters)

Post flairs categorize content within subreddits. Many subreddits require post flairs, and some have specific flair requirements for different content types:

• [Discussion] for conversation starters
• [OC] for original content
• [Spoiler] for content that reveals plot details
• [NSFW] for adult content
• [Serious] for posts requiring thoughtful responses only

Other Reddit Character Limits

Username (3-20 Characters)

Reddit usernames must be between 3 and 20 characters. Usernames can only contain letters, numbers, underscores, and hyphens. Once created, usernames cannot be changed.

Display Name (30 Characters)

Your display name appears on your profile and can be different from your username. You have 30 characters to work with, and unlike usernames, display names can include spaces and special characters.

Bio/About (200 Characters)

Your Reddit profile bio has a 200 character limit. Use this space to:

• Introduce yourself
• Share your interests
• Link to your other social profiles
• Add a bit of personality

Subreddit Description (500 Characters)

Subreddit moderators can write descriptions up to 500 characters. These appear in the sidebar and help users understand the community's purpose.

Direct Messages (10,000 Characters)

Reddit direct messages share the same 10,000 character limit as comments. Chat messages in Reddit's real-time chat feature have lower limits, typically around 4,000 characters.

Formatting Tips for Reddit

Reddit uses Markdown for text formatting. Mastering these basics helps you create better-looking posts and comments:

Essential Markdown Syntax

• Bold: **text** or __text__
• Italic: *text* or _text_
• Strikethrough: ~~text~~
• Superscript: ^text
• Code: `code` for inline, four spaces for blocks
• Quotes: > before the text
• Links: [text](URL)
• Lists: * or - for bullets, 1. for numbered
• Headers: # for H1, ## for H2, etc.
• Horizontal rule: --- or ***

Tips for Better Formatting

• Preview before posting: Use the preview feature to check formatting
• Add blank lines: Double line breaks create new paragraphs
• Don't overformat: Too much bold or caps feels like shouting
• Use spoiler tags: >!spoiler!< hides text until clicked

Character-Saving Techniques

When approaching character limits, these strategies help:

• Use standard link syntax [text](url) instead of full URLs
• Use common abbreviations (IIRC, IMO, ELI5)
• Trim unnecessary words and phrases
• Use lists instead of verbose prose
• Remove redundant punctuation

Frequently Asked Questions

What is the Reddit post title character limit?

Reddit post titles have a maximum limit of 300 characters. This applies to all post types including text posts, links, images, videos, and polls. While you have 300 characters available, shorter titles (60-80 characters) typically perform better for engagement.

What is the Reddit text post character limit?

Reddit text posts (self posts) can contain up to 40,000 characters in the body. This generous limit allows for detailed discussions, long-form stories, comprehensive guides, and in-depth analyses. Use formatting to improve readability in longer posts.

What is the Reddit comment character limit?

Reddit comments have a maximum limit of 10,000 characters. This includes all text, formatting characters, and spaces. If you need more space, you can reply to your own comment with additional content.

What is the Reddit flair character limit?

Both user flairs and post flairs on Reddit have a 64 character limit. However, individual subreddits may impose stricter limits or only offer preset flair options that moderators have created.

Does Reddit have a character counter?

Reddit shows a character counter for post titles as you approach the 300 character limit. For longer content like post bodies and comments, Reddit doesn't display a counter until you're near the limit. Use our free character counter tool to check your content length before posting.

Can I edit my Reddit post after publishing?

Yes, you can edit text post bodies and comments after publishing. However, post titles cannot be edited after submission. Reddit shows an "edited" indicator on modified content, so keep this in mind when making changes.