Top subreddits, ranked from a live crawl
The largest, busiest and fastest-growing communities in the Prowlo catalog. These are the subreddits we track — not a map of all of Reddit — and every number carries the date we captured it.
Fastest growing
Updated Sep 25
For Indian teen Girls to connect, share experiences, seek advice, and discuss life and culture.
This is a trans sub except everyone here is awful and fucking sucks. Counting sub for 4tran memes. This place is a cognito hazard, consider muting the sub if you don't want it on your feed.
Welcome to the OpenCode subreddit. OpenCode is a popular, free, open-source AI coding agent that integrates powerful AI models directly into your terminal, IDE, or desktop, allowing developers to write, refactor, debug, and explain code using natural language commands. OpenCode supports OpenAI, Anthropic, Gemini models as well as fully local models. Find OpenCode here https://opencode.ai/
Say literally anything reddit will allow and dont filter your story. let people build their opinons on your unfiltered story! Silly, serious, controversial, confusing, crazy, all stories welcome.
Codex: A command center for agents. an open-source local coding agent that turns natural language into working code. Tell Codex what to build, fix, or explain, then watch it bring your ideas to life.
All discussions related to fantasy football. Don't be shy. Come on in with hot-takes, memes and stories.
READ THE RULES BEFORE POSTING! Welcome to the International Biohacking Community Subreddit by Josh Universe, a community dedicated to exploring the world of biohacking and transhumanism and increasing human potential through science and technology. Whether you're interested in enhancing cognitive function, improving performance through peptide research, extending your lifespan, or delving into cutting-edge technologies like CRISPR or gene therapy this is the place to share knowledge and ideas.
A space for sharing office horror stories, advice on how to quit, & suggestions for how to earn a living outside a cubicle.
A place to find and share jobs, scholarships, hustles, and life-changing opportunities in Kenya.
The red-headed step-children of the #1 Fantasy Football Podcast and their hosts Andy, Mike and Jason. Team up with other members of the FootClan to talk all things Fantasy Football! (This is an un-official, fan-moderated sub. The Ballers themselves are not involved.)
🧬💡A friendly, educational community that helps anyone understand the science behind peptides, no PhD or the constant need to Google every other word required! We’re a supportive space for open, respectful discussion about research peptides and the studies behind them, where curiosity is encouraged, questions are welcomed, and no one is made to feel out of place.
Unofficial community for discussions, questions and reflections about the Google Play Console, and about issues of publishing and promoting apps. Some example are publications, rejections, app permissions, rating, policies, updates, subscriptions and testing helping each other as developers or publishers
This community is dedicated to discussions about the Model Context Protocol (MCP), an open standard facilitating secure, two-way connections between data sources and AI-powered tools. Here, members share MCP server implementations, integration strategies, and best practices. Whether you’re a developer, researcher, or AI enthusiast, join us to collaborate, innovate, and advance the MCP ecosystem.
Oil, gas, seismic science, engineering, and cool pictures of rigs. Everything you need to know about exploration, recoverable assets and pipelines. Posts must be on topic,directly about the oil industry. General Iran war topics go to r/geopolitics r/credibledefence etc
Planning a visit to Houston? Or a long-time resident of Houston wanting to learn more? Use this community to ask Houston locals questions that you may not be able to find on Google: recommendations for restaurants, itinerary suggestions, questions about specific neighborhoods...etc. Please use the search function first as many questions are asked (and answered) repeatedly. If you don't find your answer in search, provide as much detail about your trip as possible so we can better help you plan!
A Safe For Work Space Where You Can Post Just Your Face. We're Head and Shoulders above other subreddits because we only show your head and shoulders. Keep it clean, and keep your shirt on. This ain't that kind of subreddit.
Dedicated to online enthusiasts of pre- and post-war European, Asian, and American antique, classic, and vintage sports, racing, and classic autos. Historic context is always appreciated (nay, encouraged!).
This is the information and discussion subreddit for OpenAI Codex tools - Codex CLI, Codex IDE Extension and Codex in the Cloud that are included in ChatGPT Plus, Pro, Business, Edu, and Enterprise plans. The subreddit's focus recently changed and the prior subreddit content has been respectfully archived. This subreddit is not an official OpenAI subreddit.
Call of Duty: Black Ops is a first-person shooter game developed by Treyarch and published by Activision. r/blackops1 is dedicated for the community of the game that wants to discuss and share their favorite moments from it.
This is a subreddit that cares about helping with loans, without toxic mods like other subs. You don't need to have K's of karma here. This is a open and friendly group to give people a chance to become a trusted user with good loan history. You can be from anywhere. :) No offering or soliciting nudes, scam offer posts, or loans used to gamble, purchase illegal substances or any of the sort
Welcome to the community where we discuss Obsession (2026) dir. Curry Barker! Please note, there will be SPOILERS for the film throughout!
r/study is a growing community of students interested in sharing helpful study tips, inspiration, organization and planning strategies, and general chat about being a student.
Share your Startup journey and get user Feedback. For Startup Owner Outreach is crucial
B2b_ForHire came from the idea of providing a space for business owners to market their services, post wanted ads, etc. This is essentially taking a step up from /r/forhire, and rather than an individual audience, other businesses are the audience. Single person businesses are of course welcome!. Paper/report writing services are not, along with any ethically dubious postings. https://www.reddit.com/r/B2BForHire/comments/gecz7s/update/?utm_source=share&utm_medium=web2x
Get support for using Claude.ai for non-coding stuff. 💪 Improve your work and your life using the best tool ever invented.
Your daily dose of cards and camaraderie! This is the friendly corner of the internet for all things Daily Solitaire. Brag about your victory, vent about that one card that was hiding, share your best strategies, or simply enjoy the company of others who get it. Let's unwind and play a hand together!
This sub-reddit is meant for those who have just begun their learning journey.
Comunidade brasileira para discutirmos tudo sobre MicroSaaS. Como achar idéias, criar, desenvolver e manter software como serviço sem investimento externo (bootstrapped), feitos por uma única pessoa ou equipe pequena.
An Indian community for those who are struggling from severe anxiety, intense competitive pressure or just life in general.
Beginner Korean - a subreddit to learn Korean language. A friendly place for Korean learners at beginner level and those who are about to start learning Korean. If you have questions about how to study South Korean language, this is the subreddit for you.
Join the #1 n8n community to discuss automation, workflows, integrations, and no-code/low-code solutions! Whether you're a beginner looking for help or a power user optimizing complex workflows, this is your go-to space for: ✅ Workflow tutorials & best practices ✅ Troubleshooting & support ✅ n8n updates & new integrations ✅ AI + automation discussions ✅ No-code & low-code stack recommendations Let’s build and scale automation together! Join now and level up your n8n automation skills!
r/opencodeCLI is a community-driven subreddit for sharing resources, discussions, and tips around OpenCode which is a Go + TypeScript open-source CLI TUI for coding assistance. It supports multiple providers (Anthropic Claude, OpenAI, Gemini, local models, etc.)
AI Automations Hub - Learn, Build, Scale Share workflows, get help with tools, discuss strategies, and learn from real automation case studies. From your first automation to a 6-figure agency, this is your hub. Tutorials, tool talk, workflow shares, troubleshooting, success stories. Lets automate together! 🤖⚡
r/HermesRepLadies is a place for real discussions on high-tier handmade Hermès bags. No other qualities, categories, brands. To users with all levels of knowledge, Welcome!
A race to 1 million, WSB style! Catch the best psych level stock trades and 100 baggers on options with https://www.marketmage.app/
Benvenuti su r/VintedItalia, il subreddit italiano dedicato allo scambio, vendita e acquisto sicuro su Vinted. Qui potrai: Chiedere consigli su vendite, spedizioni e prezzi Scambiare esperienze e suggerimenti con altri utenti Nota: Questo subreddit non è affiliato a Vinted ufficialmente.
SweepsGrail.com 👈 90+ legit Sweeps casinos + Discord link inside. Welcome to Sweepstakes Side Hustle - we’re not stopping!
Showing 50 of the 4,001 communities Prowlo tracks — the catalog grows daily.
Read-only · Human-in-the-loop
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What this list is, and what it isn’t
There are over a hundred thousand active subreddits. This page ranks the ones in the Prowlo catalog — currently 4,001 communities, growing every day as users add Watchers and our discovery pass finds new ones. It is not a complete census of Reddit and we are not going to pretend otherwise, because a ranking is only as good as the freshness of what sits behind it.
What you do get is numbers with a date on them. Every community here is re-checked on a rolling schedule through our own data pipeline, and every ranking states when it was captured. That matters more than it sounds: most “top subreddits” lists on the web are copies of a scrape that stopped running years ago, and several of the tools that produced them broke for good in May 2026 when Reddit started returning 403 to unauthenticated requests.
Largest, most active, fastest growing
Largest sorts by subscriber count. It is the ranking everyone asks for and the least useful one for deciding where to spend your time — subscriptions accumulate forever and never expire, so the number measures history rather than activity.
Most active sorts by posts per day sampled from each community’s newest posts on Reddit — the real span those posts cover, not a rounded window. This is the ranking to look at if you are choosing communities to participate in: it tells you where conversation is actually happening, and how fast the front page turns over.
Fastest growing compares each community’s current subscriber count against the nearest snapshot around 30 days back. It needs real history to exist, so it stays gated until we have it rather than extrapolating from a few days of data.
The size filters exist because ranking a 5,000-member community against r/AskReddit is meaningless. Filtering to 10K–100K is where most of the genuinely useful communities for founders and marketers live — big enough that people are reading, small enough that a good answer stays on the page for more than an hour.
Don’t pick your subreddits from a top-N list
This page is useful for orientation and for settling arguments about which community is bigger. It is a bad way to choose where to post. The largest communities are also the most saturated, the most heavily moderated, and the ones where every competitor in your category has already tried the same thing. A comment in a subreddit posting a thousand times a day is visible for minutes.
Start from your niche instead. Describe your product in the subreddit finder, check each match’s activity and promo tolerance, then expand the shortlist with shared-audience neighbors. Watch the ones that survive that filter and let your agent monitor them over MCP — where these rankings are a tool call away too: catalog_top_subreddits, free.
Frequently asked questions
What is the biggest subreddit?
Across Reddit as a whole, r/funny, r/AskReddit and r/gaming have traded the top spot for years, each with tens of millions of subscribers. The ranking on this page is narrower and more honest about it: it covers the communities in the Prowlo catalog, ordered by the member counts from our own crawl, so the numbers carry a capture date instead of being copied from a years-old scrape.
How many subscribers does r/AskReddit have?
It is one of the handful of default-tier communities in the tens of millions, and we are not going to quote you a precise figure we have not measured. If r/AskReddit appears in the list above, the number shown is what our own crawl recorded, with the capture date next to it. Raw size is also the least useful thing about it: a comment in a subreddit that posts thousands of times a day stays visible for minutes.
What does "most active" rank by?
Posts per day, sampled from each community's own newest posts on Reddit — the real span those posts cover, not a rounded window — with subscriber count as the tiebreaker. Samples older than two weeks are treated as unmeasured, and unsampled communities sort last. It is a much better guide than subscriber count to whether a community is alive — plenty of million-member subreddits post less than a hundred-thousand-member one.
Why is fastest-growing sometimes unavailable?
Growth rankings need at least 30 days of our own snapshot history for a meaningful number of communities. Rather than compute a growth rate from two points a few days apart and present it as a monthly trend, we show you the date tracking started and ask you to come back. It is the same reason every growth figure on the site is labelled with its real day-span.
How many subreddits does Prowlo track?
4,001 active communities, and the catalog grows daily as users add Watchers and our discovery pass finds new ones. NSFW, private, banned and unreachable subreddits are excluded by design, so this is not a complete map of Reddit — it is the slice we can crawl reliably and keep current.
Can my AI agent read these rankings?
Yes. The same rankings are exposed through Prowlo's MCP server as catalog_top_subreddits — largest, most active, or fastest growing, filterable by size band, free and unmetered. Connect your agent to api.prowlo.com/mcp and it can browse the field, vet a candidate with catalog_get_subreddit, and start watching it in one conversation.
How do I find subreddits for my own niche?
A top-N list is a poor targeting tool — the biggest communities are the most saturated and the hardest to be useful in. Use the subreddit finder instead: describe your product or audience and get matched to the communities that discuss it, then filter by posting activity and promo tolerance.
More free Prowlo tools
Subreddit Finder
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Reddit MCP Server
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