Reddit Character Limit 2026 – Titles, Posts, Comments & Flair
Reddit gives you 300 characters for a post title and 40,000 for the body — an unusual split that tells you exactly where the platform thinks the work happens. The title is the entire pitch: it is what appears in feeds, in search and in every crosspost, and it cannot be edited after posting. This guide covers every character limit on Reddit for posters, commenters and moderators, and explains which ones are worth optimising against.
Paste your text below to check your Reddit content length in real time — the Reddit limit is pinned to the top of the checker.
Platform Limit Checker
Reddit Character Limits at a Glance (2026)
| Content Type | Character Limit | Notes |
|---|---|---|
| Post title | 300 | Cannot be edited after posting |
| Text (self) post body | 40,000 | Editable after posting |
| Comment | 10,000 | Editable after posting |
| Username | 3–20 | Permanent once created |
| Subreddit name | 3–21 | Permanent once created |
| Post flair text | 64 | Set by moderators |
| User flair text | 64 | Per subreddit |
| Subreddit public description | 500 | Shown in search and listings |
| Chat message | 10,000 | Same as comments |
The Title Is the Only Field You Cannot Take Back
Reddit lets you edit a text post body and every comment you write, indefinitely. It does not let you edit a title. A typo, a buried lede or a misleading framing is permanent for the life of the post, and since the title is the only thing most people ever see in their feed, it carries essentially all of the click decision.
Key points
- ✓Draft the title last, after the body exists and you know what the post is actually about.
- ✓300 characters is generous, but feed layouts truncate long titles — the first 80 or so characters do the real work.
- ✓Front-load the specific detail. 'Our deploy times went from 40 minutes to 4' beats 'Some thoughts on our CI pipeline'.
- ✓If you get the title wrong, delete and repost rather than leaving it — but check the subreddit's rules on reposting first.
40,000 Characters Is Not an Invitation
The body limit is roughly 6,000 words — longer than almost any post should be. Reddit's audience reads on mobile, in a feed, with a collapse control one tap away. Long posts do succeed on Reddit, but the ones that do are structured, not merely long.
- •Open with the conclusion. Reddit readers reward posts that do not make them dig for the point.
- •Use headers and bold sparingly — Reddit's markdown renders them, and they make a long post scannable.
- •A 'TL;DR' line at the top is a Reddit convention, not a cop-out. Use it.
- •If your post exceeds the 40,000-character limit, the platform is telling you it should be a link, not a post.
Usernames and Subreddit Names Are Permanent
A Reddit username is 3–20 characters and cannot be changed after account creation — the only route to a different name is a new account, which forfeits all accumulated karma and account age. Subreddit names are 3–21 characters and are equally permanent. Both allow letters, numbers, underscores and hyphens, and both are worth counting carefully before you confirm.
Limits Moderators Should Know
If you run a subreddit, several character limits shape how your community appears to people who have not joined yet:
- •Public description: 500 characters. This is what appears in Reddit search results and in the subreddit listing, so it is effectively your meta description.
- •Post and user flair: 64 characters each. Long flair truncates on mobile — keep it to two or three words.
- •Rules: each rule has a short title plus a longer description. Short titles show in the report menu, so they need to be self-explanatory on their own.
Examples: Good vs. Bad
✅ Specific, front-loaded, well under the truncation point
“We cut our AWS bill from $18k to $4k/month by deleting one line of Terraform”
❌ Vague, and the point never arrives
“Just wanted to share some interesting thoughts and lessons learned from our recent infrastructure journey over the past year, hope someone finds this useful”
Frequently Asked Questions
Reddit post titles are limited to 300 characters. Unlike the post body and comments, a title cannot be edited after the post goes live, so it is worth drafting carefully — the title is what appears in feeds, search results and crossposts.
A text (self) post body can be up to 40,000 characters, which is roughly 6,000 words. Post bodies can be edited freely after posting. Link posts have no body at all — the title carries everything.
Comments are limited to 10,000 characters, the same limit that applies to Reddit chat messages. If a comment exceeds it, the usual convention is to split it across a parent comment and a reply to yourself rather than trimming the substance.
No. Reddit usernames are 3–20 characters and permanent — they cannot be changed after the account is created. The only way to use a different name is to create a new account, which starts over with no karma and no account age.
Yes, spaces count as characters in titles, bodies and comments. Markdown formatting characters count too — the asterisks around bold text, the hash marks on headers and the brackets and parentheses in links all consume part of your limit.
Both post flair and user flair are limited to 64 characters. Flair longer than roughly two or three words tends to truncate on mobile layouts, so short labels work better than descriptive sentences.
Check Your Reddit Character Count Now
Scroll back up to the counter on this page, or open the full character counter. Either one shows whether you’re within the recommended range — along with limits for Twitter, Instagram, LinkedIn, Meta Description, and more at the same time.
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