The Reddit character limit is 300 characters for post titles, roughly 40,000 characters for text post bodies, and about 10,000 characters for comments. Usernames are capped at 20 characters and profile bios at 200. But Reddit has a catch no other platform does: individual subreddits can impose stricter rules — a title that fits Reddit’s site-wide 300 can still be rejected by a community that caps titles at 130, requires tags, or bans certain phrases.
That two-layer system — site limits plus subreddit rules — is why posts that “should fit” get bounced. This guide covers every Reddit character limit in 2026, what counts toward them (Markdown does), and how to clear both layers on the first attempt. Count any draft in the free Text Character Counter before you post.
What Is the Reddit Title Character Limit?
300 characters — confirmed by Reddit’s own API documentation, which caps submission titles at exactly that. Every post on Reddit requires a title, and it’s the single highest-leverage text you’ll write on the platform: in feeds, search results, and Google (where Reddit threads now rank aggressively), the title is often all anyone sees before deciding to click.
Everything counts toward the 300: letters, spaces, punctuation, emojis, and any required tags like [Serious] or [OC]. Two title realities worth internalizing:
- 300 is the ceiling, not the target. Titles in the 60–120 character range dominate most front pages — long enough for context, short enough to scan. Reddit users are famously hostile to clickbait; a clear, specific title outperforms a teasing one.
- You can’t edit a title after posting. Body text is editable forever; the title is locked at submission. A typo or a missing required tag means deleting and reposting — one more reason to draft and count it outside the composer.
Every Reddit Character Limit in One Table
| Reddit Field | Character Limit (2026) |
|---|---|
| Post title | 300 characters (API-documented) |
| Text post body (self post) | ~40,000 characters |
| Comment | ~10,000 characters |
| Username | 20 characters |
| Profile bio | 200 characters |
| Display name | 30 characters |
| User flair | Typically 64 characters (subreddit-configurable) |
| Subreddit rules | Can set stricter title/body requirements |
The body and comment figures are the commonly enforced composer limits; Reddit documents the title cap precisely but is looser about editor surfaces, which is why the composer’s own counter is the final word for very long posts.
Why Did My Post Get Rejected When It Fit the Limit?
Because subreddits are the second layer. Moderators can configure per-community posting requirements that override the site-wide generosity:
- Stricter title lengths — a community may enforce a 130-character maximum, or a minimum to prevent vague titles
- Required title tags — [OC], [Discussion], [Question], platform tags, spoiler markers
- Banned words or phrases in titles
- Body requirements — minimum body length, mandatory sections, or no link posts at all
- Account thresholds — minimum karma or account age, which reject the post regardless of its text
The pre-post routine that avoids all of it takes two minutes: read the subreddit’s rules in the sidebar, scan the top posts from the last month to see what title format the community actually uses, and match it. A perfectly counted 300-character title means nothing in a subreddit that wants “[Question] …” in the first 11 characters.
Does Markdown Count Toward Reddit’s Limits?
Yes — and this catches long-post writers constantly. Reddit posts and comments are written in Markdown, and every formatting symbol counts as a character: the asterisks in **bold**, the # in headers, the > in quotes, the hyphens in lists, the brackets and parentheses in [link text](url).
The link syntax is the expensive one. A neat inline link — [our character counter guide](https://example.com/very/long/path) — costs the display text plus the entire URL plus four symbols. A comment with ten sourced links can spend 1,000+ characters on URLs alone.
Also: pasting from rich-text editors (Word, Google Docs) can drag hidden formatting into the composer and make counts behave oddly. When a long post misbehaves, paste it through a plain-text editor first, then recount in a character counter — the visible-plus-Markdown total is what Reddit measures.
How Long Should a Reddit Post Actually Be?
The 40,000-character body limit is enormous — about 6,000–7,000 words — and genuinely used: detailed guides, AITA sagas, r/relationships epics, and long technical write-ups are native to Reddit in a way they aren’t anywhere else. Long-form works here. But structure decides whether it gets read:
- Front-load the point. The first two sentences appear in feed previews; a buried lede dies in the scroll.
- Use Markdown headers (
##) every few paragraphs. Reddit renders them properly and long posts without them get the dreaded “didn’t read” replies. - Add a TL;DR — at the top for advice posts (people read it, then decide), at the bottom for stories.
- Comments: lead with the answer. The 10,000-character comment limit allows essays, but upvotes flow to comments whose first line is the point, with elaboration underneath.
And the title still decides everything: a 5,000-word masterpiece under a vague 40-character title gets a fraction of the traffic the same post earns under a specific, front-loaded one.
Reddit Titles and Google: The 2026 Angle
One more reason the 300-character title deserves care: Reddit threads now rank prominently in Google results, and your post title becomes the clickable headline in Google’s SERP. That gives Reddit titles a second job — they’re effectively title tags. The same rules apply as in SEO: put the searchable phrase early (Google truncates titles around 60 characters in its own display), be specific, and describe the actual content. A title like “Fixed my [game]’s stuttering after 3 weeks — full solution inside” is a Google-ranking asset; “Finally fixed it lol” is invisible.
Frequently Asked Questions
What is the Reddit title character limit?
300 characters, as documented in Reddit’s API. Individual subreddits can enforce shorter maximums or minimums, and titles cannot be edited after posting.
What is the Reddit post character limit?
Text post bodies allow roughly 40,000 characters. Comments allow about 10,000. Both are subject to any stricter subreddit rules.
Does Markdown formatting count toward Reddit’s character limits?
Yes. Asterisks, headers, quote arrows, and the full URLs inside link syntax all count as characters.
Can I edit a Reddit title after posting?
No. Body text and comments are editable; titles are permanent. Draft and count the title before submitting.
What is the Reddit username character limit?
20 characters, and usernames are permanent. Profile bios allow 200 characters.
Why was my post removed even though it fit the character limit?
Subreddit-specific rules — required tags, title length ranges, minimum karma, or banned phrases — apply on top of Reddit’s site-wide limits. Check the community’s sidebar rules before posting.
Conclusion
Reddit gives you 300 characters for the title, 40,000 for the body, 10,000 per comment — and then lets every subreddit tighten those rules on top. Count your text, read the sidebar, and remember the title is both unchangeable and, thanks to Google, the most valuable 300 characters on the page.
Draft your title and post in the free Text Character Counter — check the title against 300 (and the subreddit’s own cap) before the composer locks it in forever.