How the technology communities compare
Membership is concentrated: the three largest communities hold 82% of all members on this list, so most of the technology conversation happens in a handful of places. Size and activity don't line up perfectly: r/Futurology has the most members, but r/pcmasterrace gets the most new posts (about 354 a day, against 20 in r/Futurology). Per member, the liveliest is r/IndiaTech: 52 posts a day from 501.6K members — a smaller crowd, but an engaged one. Among the communities we track weekly, r/linux grew fastest recently (+0.18%, +3.5K members since Oct 19). The oldest is r/technology, founded in 2008, and only one community here is younger than five years: r/IndiaTech (2021).
The 11 biggest technology subreddits
r/Futurology 21,720,928 members · ~20 posts/day · +3.3K since Oct 19 · since 2011A subreddit devoted to the field of Future(s) Studies and evidence-based speculation about the development of humanity, technology, and civilization. -------- You can also find us in the fediverse at - https://futurology.today
r/technology 20,601,699 members · ~108 posts/day · +14.1K since Oct 19 · since 2008Subreddit dedicated to the news and discussions about the creation and use of technology and its surrounding issues.
r/pcmasterrace 16,365,417 members · ~354 posts/day · +10.4K since Oct 19 · since 2011Welcome to the official subreddit of the PC Master Race / PCMR! All PC-related content is welcome, including build help, tech support, and any doubt one might have about PC ownership. You don't necessarily need a PC to be a membe…
r/hardware 4,374,189 members · ~11 posts/day · +802 since Oct 19 · since 2008r/hardware is a place for quality computer hardware news, reviews, and intelligent discussion. r/hardware IS NOT the place to come for help of any kind.
r/techsupport 3,460,200 members · ~173 posts/day · +3.5K since Oct 19 · since 2008Stumped on a tech problem? Ask the community and try to help others with their problems as well. Note: Reddit is dying due to terrible leadership from CEO /u/spez. Please use our Discord server instead of supporting a company tha…
- Lr/linux ↗ 1,932,229 members · ~50 posts/day · +3.5K since Oct 19 · since 2008
Welcome to /r/Linux! This is a community for sharing news about Linux, interesting developments and press. If you're looking for tech support, /r/Linux4Noobs and /r/linuxquestions are friendly communities that can help you. Pleas…
- Tr/technews ↗ 1,104,728 members · ~10 posts/day · +883 since Oct 19 · since 2008
Hard-Tech News
- Tr/tech ↗ 660,668 members · ~3.1 posts/day · since 2008
The goal of /r/tech is to provide a space dedicated to the intelligent discussion of innovations and changes to technology in our ever changing world. We focus on high quality news articles about technology and informative and th…
- Ir/IndiaTech ↗ 501,555 members · ~52 posts/day · since 2021
r/IndiaTech is for everything about information and communication technology, from an Indian perspective. It can be anything from the latest innovations in AI/ML, or data science, or new/vintage mobile phones, laptops, apps, anyt…
- Lr/LinusTechTips ↗ 425,525 members · ~16 posts/day · since 2012
The unofficial but officially recognized Reddit community discussing the latest LinusTechTips, TechQuickie and other LinusMediaGroup content. Come and join us today!
- Tr/techsupportmacgyver ↗ 313,639 members · ~1.9 posts/day · since 2012
Instances of crazy fixes that actually ended up working. Or not working, I'm a description, not the cops.
What these communities upvoted this week
A cross-section of this week's top posts from the bigger technology subreddits, in the order Reddit ranks them.
- How tech billionaires are buying the narrative: Elon Musk's $1B Paramount deal has suffocated an independent documentary critical of himr/Futurology · Oct 25
- Elon Musk Admits SpaceX Purposely Restricted Ukraine’s Starlink Access in War With Russia: ‘That Loophole Was Closed’r/technology · Oct 25
- “I’m gonna use this only for study”r/pcmasterrace · Oct 27
- Ultra-rich 0.1% produce more carbon pollution than nearly half of humanity while cashing in on the climate disasters they creater/Futurology · Oct 29
- Man granted first-of-its-kind religious exemption against mandatory AI use at work — Humanist argues that offloading his thinking to LLMs violates his beliefs, Title VII accommoda…r/technology · Oct 29
- Where is itr/pcmasterrace · Oct 25
Choosing where to post
If you have a question, start in r/LinusTechTips: it is set up for exactly that, and with about 16 new posts a day there are plenty of people around to answer. Competition for attention differs a lot: r/Futurology has 21.7M members but only about 20 new posts a day — roughly one new post for every 1.1M members — while r/pcmasterrace gets about 354 a day, one for every 46.3K. A strong, well-made post therefore has more room to be seen in r/Futurology; r/pcmasterrace is better when you want quick replies. Rule sets vary: of the communities we have rules for, r/techsupport lists 14, against 9 in r/technology, so a post that is fine in one can be removed in another.
Before posting, sort a subreddit by “Top” for the past month: it shows in a minute what that community rewards. Always read the rules in the sidebar first — each community is run by its own volunteer moderators. Our guide to searching Reddit explains how to dig through any of these communities, and the subreddit info tool gives you the stats of one we don't list.
Frequently asked questions
Which technology subreddit has the most members?
r/Futurology is the largest, with 21,720,928 members, followed by r/technology (20.6M) and r/pcmasterrace (16.4M).
Where are the most new technology posts?
By new posts per day, r/pcmasterrace leads with about 354, ahead of r/techsupport (173). Counts are averages over the last seven days.
Which technology subreddit is best for questions?
r/LinusTechTips is the one built around questions and advice, with about 16 new posts a day. Check its rules and search it first — common questions have usually been answered.
How many technology communities are on this list?
We list 11 active, safe-for-work technology communities with at least 25,000 members each, 71.5M members in total (people can be in several). Reddit has many smaller ones too; our guide on searching Reddit shows how to find them.
What is the oldest technology subreddit?
r/technology, created on Jan 25, 2008.
Are these technology subreddits safe for work?
Yes. Every community on this page is public and not marked 18+ by Reddit, and we filter out communities whose name or description points to adult content.
Data: Reddit's public subreddit search and the Arctic Shift archive (Oct 30, 2026), growth from SubMouse's weekly snapshots. Member counts of communities outside our Top 1000 come from the archive and can lag a little. Not affiliated with Reddit.