About r/KimetsuNoYaiba
In its own words:
r/KimetsuNoYaiba is Reddit’s main Anime and Manga community for the series Demon Slayer: Kimetsu no Yaiba by Koyoharu Gotōge.
Community guide
r/KimetsuNoYaiba (#607, about 1.8 million subscribers) is oriented around: r/KimetsuNoYaiba is Reddit’s main Anime and Manga community for the series Demon Slayer: Kimetsu no Yaiba by Koyoharu Gotōge. Recent activity samples show 22 posts/day in recent samples (~40% image, ~31% gallery, ~24% text). Public rules we collected include: Be respectful and avoid bigotry; All content must be related to Kimetsu no Yaiba; No low-effort posts or Memes; No Self-Promotion; No Spam or Reposting.
What belongs here
Stay inside the room’s stated scope rather than adjacent fandoms or general off-topic dumps. Spoiler-tagged posts and titles are expected when new episodes, endings, or fight results are discussed. Self-promotion and advertising are tightly limited—read those rules before linking your own channel, shop, or site. Low-effort memes or empty shitposts are commonly removed—add context that fits the room’s purpose. Civility and anti-harassment rules are explicit; personal attacks get you removed regardless of how right you think you are.
How it differs from lookalikes
The length of the public rule list is itself a signal: skim all of them once before assuming defaults from similar communities.
Practical pointers
Read the current sidebar/rules on Reddit before posting; collected rules can lag. Err on spoiler tags for fresh releases and results. Search the sub before reposting common clips or questions. Common flairs in samples include: Discussion 🗣️, Fanart (Original Work)🎨, Anime 👺⚔️, Cosplay 🥋.
SubMouse Editorial
The community was created on Jul 31, 2016, which makes it 10 years old. Since Oct 26, 2026, it has gained 557 subscribers (+0.03%). It sits just behind r/DotA2 (#606) and ahead of r/midjourney (#608) in our ranking.
What sets r/KimetsuNoYaiba apart
Compared with other large communities, r/KimetsuNoYaiba leans heavily on images (40% of recent posts; the typical Top 100 subreddit sits at 21%). Its rhythm is strongly tied to time zones: the busiest hour (12:00 UTC) sees about 4.7× as many posts as the quietest (00:00 UTC).
Subscriber growth
Between Sep 19, 2026 and Nov 2, 2026, r/KimetsuNoYaiba grew from 1,786,022 to 1,789,774 subscribers (+3.8K, +0.21%). That is about 85 new members per day. The chart uses our weekly snapshots (9 so far), so it gets longer every week.
What r/KimetsuNoYaiba talks about
We read the titles of 154 recent posts (Oct 29–Nov 5), the words that come up most are “demon”, “slayer”, “kny”, “tanjiro” and “hashira”. Other frequent themes are happy, shinobu, halloween, story, muzan and demons. Recurring phrases include “demon slayer”, “breathing style”, “happy halloween” and “low poly”. By format, 40% are images, 31% are galleries and 24% are text posts.
Popular post flairs: Discussion 🗣️ (37), Fanart (Original Work)🎨 (24), Anime 👺⚔️ (23), Cosplay 🥋 (11), Meme🤣 (10), Anime Question⚔️🧐 (9).
Activity and best time to post
r/KimetsuNoYaiba gets about 22 new posts a day. The public archive holds 172,607 posts and 2,997,287 comments in total, about 17.4 comments per post. Last week the busiest day was Saturday (27 posts) and the quietest was Sunday (17). Posting peaks around 12:00 UTC and is lowest around 00:00 UTC.
Rules of r/KimetsuNoYaiba
The moderators of r/KimetsuNoYaiba list 12 rules. In short:
- Be respectful and avoid bigotry
- All content must be related to Kimetsu no Yaiba
- No low-effort posts or Memes
- No Self-Promotion
- No Spam or Reposting
- Extreme Overly sexual content isn't allowed
- All self posts and comments have to be in English
- Source Art that is not yours: limited to Friday-Sunday
- Tag Spoilers Properly
- 1 Week Submission Rule
How to join
Open reddit.com/r/KimetsuNoYaiba and press “Join”. Read the community rules in the sidebar before you post: every subreddit is run by its own volunteer moderators.
Frequently asked questions
How big is r/KimetsuNoYaiba?
r/KimetsuNoYaiba has 1,789,774 subscribers (Nov 2, 2026), which makes it the #607 safe-for-work subreddit in the SubMouse ranking. It added 3,752 members between Sep 19, 2026 and Nov 2, 2026.
How old is r/KimetsuNoYaiba?
r/KimetsuNoYaiba was created on Jul 31, 2016, so it has been around for 10 years. The oldest post in the public archive is from Aug 15, 2016.
How active is r/KimetsuNoYaiba?
Very active: r/KimetsuNoYaiba gets about 22 new posts a day (average of the last four weeks). Over its lifetime the archive counts 172,607 posts and 2,997,287 comments. In a sample of 154 recent posts we counted 117 different authors.
When is r/KimetsuNoYaiba most active?
Based on post counts from Oct 29, 2026 to Nov 4, 2026, the busiest day was Saturday and the quietest Sunday, and most posts arrive around 12:00 UTC, with the fewest around 00:00 UTC. More posts also means more competition, so a quieter hour can help a post get noticed.
What is r/KimetsuNoYaiba about?
The community describes itself as: “r/KimetsuNoYaiba is Reddit’s main Anime and Manga community for the series Demon Slayer: Kimetsu no Yaiba by Koyoharu Gotōge.” Recent post titles often mention demon, slayer, kny, tanjiro and hashira. Most posts are images (40%).
Is r/KimetsuNoYaiba safe for work?
Yes. Reddit does not mark r/KimetsuNoYaiba as an 18+ (NSFW) community. SubMouse lists safe-for-work subreddits only.
How do I post on r/KimetsuNoYaiba?
Join the community on Reddit first, then use “Create post”. r/KimetsuNoYaiba accepts both text and link posts, with images, videos and galleries enabled. It has 12 posted rules, starting with: “Be respectful and avoid bigotry”; “All content must be related to Kimetsu no Yaiba”; “No low-effort posts or Memes”. Moderators remove posts that break the rules, so read them in the sidebar before posting.
Which communities are like r/KimetsuNoYaiba?
Communities with similar topics include r/bleach (1.6M), r/JuJutsuKaisen (2.5M), r/Documentaries (20.4M), r/anime (14.5M) and r/manga (4.8M).
Stats from public data (data updated Nov 2, 2026; activity, rules and archive totals via the Arctic Shift archive, Nov 6, 2026). Point and comment counts are archive snapshots and can be lower than on Reddit today. SubMouse is an independent directory and is not affiliated with Reddit or the moderators of r/KimetsuNoYaiba.