Reddit Promoted Post Character Limits
Reddit Promoted Posts cap titles at 300 chars (~70 visible mobile feed). Body text varies by post type — usually invisible on feed.
Reddit Promoted Posts inherit the platform's organic post structure: a title, an optional body, and a creative attachment (image, video, link card, or text-only). Titles cap at 300 characters but the visible window on mobile feed is approximately 70 characters before truncation. The body text on link-card and image posts typically does not render in the feed — viewers see it only after tapping into the post detail view.
The strategic implication is that the title is doing 100% of the persuasion work in the feed. Reddit's audience is keyword-savvy and ad-allergic, so generic CTA-style titles ("Tired of slow software?") underperform versus specific, "this might actually be useful" framing ("We benchmarked 12 BI tools — here are the 3 fastest"). The "Promoted" label is unobtrusive but unmistakable; users who tap into a Promoted Post are pre-qualified.
Reddit titles: 70 chars visible on mobile feed
Body text appears after tap — title carries the entire feed-stage hook.
Verified 2026 limits
| Field | Hard max | Visible before truncate | Warn at |
|---|---|---|---|
| Post title | 300 | 70 | 60 |
| Body / link card text | 500 | 100 | 80 |
Source: https://business.reddithelp.com/helpcenter/s/article/promoted-posts · Last verified 2026-04-15.
Audience-aware copy
Reddit users actively downvote tone-deaf ads and surface them in r/AssholeDesign / r/AdHall — for the brand, that's free organic reach if the ad is good and a brand-safety nightmare if it isn't. Match the subreddit voice; avoid corporate-formal copy in casual subs.
FAQ
- How long is a Reddit Promoted Post title?
- Hard cap is 300 characters. Visible window is approximately 70 characters on mobile feed before truncation.
- Does the body text show on the feed?
- Rarely. On link-card and image posts the body is hidden until the user taps into the detail view.
- Can users downvote a Promoted Post?
- Yes. Downvotes do not affect cost but do affect feed-rank and can demote the ad in subsequent impressions.