Reddit Character Limit: 300 for Titles, and the Subreddit Rules That Override It

Reddit's post title limit is 300 characters, applied consistently across link posts, text posts, image posts, video posts, and polls. Text post bodies and comments allow considerably more room — tens of thousands of characters — since Reddit's composer fields are built for genuine discussion length rather than short-form posting.

The Layer Most Guides Skip: Subreddit-Specific Rules

Reddit's 300-character title limit and generous body limits are the platform-wide numbers, but individual subreddits can — and frequently do — impose their own, stricter rules on top of them. A post that comfortably fits within Reddit's own limits can still get removed or rejected for violating a specific community's title format, length requirement, or content rule, which exist entirely independent of the site-wide numbers.

Reddit's official limits are the outer boundary, not the actual rule for any given post. A community with strict formatting requirements — a mandatory prefix, a maximum length shorter than 300 characters, a required flair — can reject a technically valid post for reasons that have nothing to do with what Reddit itself allows.

Why the Optimal Title Length Is Much Shorter Than 300

Despite the 300-character allowance, the most consistently successful Reddit titles run considerably shorter — typically in the 60-150 character range. A title is the entire first impression a post gets before anyone decides whether to click, and a shorter, more direct title tends to communicate its point faster than one that uses most of the available 300 characters.

Reddit Premium Doubled the Body Limit in Late 2025

Reddit raised the text post body limit from roughly 40,000 to 80,000 characters for Premium subscribers in a November 2025 changelog update — doubling the room available for a single post without changing the free-tier limit at all. For anyone writing genuinely long-form content — a detailed guide, a research writeup, a full recap — that upgrade is worth knowing about specifically, since it's not mentioned anywhere in the composer itself and easy to miss unless the changelog was checked directly.

A Post Title Can't Be Edited After It's Published

Unlike a post's body text, which can be revised after publishing, a Reddit post title is permanent once submitted — there's no edit option for it at all. That makes the title the single highest-stakes field on the entire platform: a typo, an unclear phrasing, or a missed keyword in the title has to be lived with for the life of the post, while every other part of a submission can still be fixed.

A Formatting Detail Worth Knowing: Markdown Counts Toward the Limit

Reddit's character limits count markdown formatting syntax as part of the total, not just the visible text it produces — wrapping a word in double asterisks for bold formatting adds those four extra characters to the count, even though only the original word is what a reader actually sees. This matters more for longer posts and comments that use heavier formatting, since the actual usable character budget ends up smaller than the raw limit suggests once formatting syntax is factored in.

Why Shorter Generally Outperforms Longer, With One Exception

Across most feed-based platforms, shorter content tends to see stronger engagement simply because it asks less of a reader scrolling past dozens of competing posts — a short post can be read and processed in a couple of seconds, where a long one demands sustained attention it may not get. The consistent exception is educational or storytelling content in communities specifically built around depth, where a longer, more detailed post can outperform a short one precisely because that's what the audience is there for.

Checking a Draft Against the Right Limit

Since Reddit's own limits, a specific subreddit's rules, and the research-backed optimal length are three different things, checking a draft against all three — not just the platform-wide maximum — is the more reliable way to avoid a rejected post. A character counter makes the raw count fast and exact, though the subreddit-specific rules still need a manual check against that particular community's posting guidelines.

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Reddit's 300-character title limit is real, but it's the outer boundary, not the whole story — a specific subreddit's own rules can be considerably stricter, and the titles that actually perform best run well under the maximum regardless. Checking a draft against the platform limit, the target subreddit's specific rules, and the shorter length that tends to perform best covers all three layers a Reddit post actually has to clear.