Engineering subreddits
We found 78 active engineering subreddits: communities with at least one new post a day on average in September 2026, ranked by members. The largest is r/AskEngineers with 2.75M members. The busiest is r/EngineeringStudents, with 1,742 posts last month. In 17 of the 58 we could measure, a brand-new account's post usually stays up: they remove 17% or fewer of posts from accounts under a week old.
Data for 78 communitiesDownload CSV
Filter it by your account age and karma, the audience you want and the best time to post.
- r/AskEngineers2.75M members
- r/EngineeringStudents1,742 posts in September 2026
- r/EngineeringManagers+161% members in 12 months
- r/ComputerEngineering12% of new-account posts removed
All active engineering subreddits, by members
| # | Subreddit | Members | Posts / month | Member growth, 12 mo | Median author age | Women | Posts with a reply | New-account posts removed | Links |
|---|---|---|---|---|---|---|---|---|---|
| 1 | r/AskEngineers↗Engineers apply the knowledge of math & science to design and manufacture maintainable systems used to solve specific problems. AskEngineers is a forum for questions about the technologies, standards, | 2.75M | 307 | +2% | 27 | 15% | 95% | Min. age/karma | No |
| 2 | r/EngineeringPorn↗Engineering Porn | 1.44M | 190 | +6% | 31 | 11% | 54% | 98% | Yes |
| 3 | r/EngineeringStudents↗This is a place for engineering students of any discipline to discuss study methods, get homework help, get job search advice, and find a compassionate ear when you get a 40% on your midterm after st | 1.02M | 1,742 | +8% | 23 | 21% | 76% | 98% | Yes |
| 4 | r/engineering↗r/engineering is a forum for engineering professionals to share information, knowledge, experience related to the principles & practices of the numerous engineering disciplines. r/engineering is **NO | 749K | 54 | +5% | 27 | 13% | 92% | Min. age/karma | Yes |
| 5 | r/audioengineering↗Products, practices, and stories about the profession or hobby of recording, editing, and producing audio. | 653K | 735 | +5% | 28 | 10% | 91% | 95% | No |
| 6 | r/dataengineering↗News & discussion on Data Engineering topics, including but not limited to: data pipelines, databases, data formats, storage, data modeling, data governance, cleansing, NoSQL, distributed systems, str | 483K | 724 | +19% | 30 | 15% | 71% | 99% | Yes |
| 7 | r/ElectricalEngineering↗A place to ask questions, discuss topics and share projects related to Electrical Engineering. | 378K | 842 | +21% | 26 | 13% | 69% | Min. age/karma | Yes |
| 8 | r/robotics↗Robotics | 343K | 791 | +14% | 29 | 13% | 39% | Min. age/karma | Yes |
| 9 | r/MechanicalEngineering↗The gathering place for mechanical engineers to discuss current technology, methods, jobs, and anything else related to mechanical engineering. | 292K | 1,146 | +29% | 27 | 13% | 67% | 97% | Yes |
| 10 | r/ECE↗A subreddit for discussion of all things electrical and computer engineering. | 250K | 581 | +12% | 25 | 14% | 48% | 27% | Yes |
| 11 | r/civilengineering↗A community dedicated to Civil Engineers and those aspiring to be. Please read the rules before participating. | 233K | 1,190 | +19% | 29 | 18% | 72% | 28% | Yes |
| 12 | r/ReverseEngineering↗A moderated community dedicated to all things reverse engineering. | 183K | 180 | +11% | 29 | 10% | 45% | 46% | Yes |
| 13 | r/IndustrialDesign↗A community for Industrial Design students and professionals. Discussing projects, school advice, sketches, portfolios and career help. | 172K | 268 | +12% | 28 | 20% | 79% | Min. age/karma | Yes |
| 14 | r/EngineeringResumes↗A place to review and discuss engineering resumes. Please read the wiki before posting! | 168K | 1,305 | +21% | 25 | 18% | 100% | 56% | Yes |
| 15 | r/Automate↗r/Automate is a community with a shared interest in AI automation tools, which have historically improved the workflow and will only continue to further impact society as a whole, particularly given t | 158K | 214 | +7% | 30 | 12% | 7% | 97% | Yes |
| 16 | r/StructuralEngineering↗Structural engineering is the use of applied physics and mechanics to analyze and design man-made structures or objects to safely resist the loads imposed upon them. | 156K | 372 | +23% | 34 | 13% | 82% | 22% | Yes |
| 17 | r/AerospaceEngineering↗r/AerospaceEngineering is a forum for enthusiasts, hobbyists, and professionals to share knowledge, experience, and learn about aerospace topics. Read the rules before posting! | 147K | 195 | +20% | 25 | 15% | 64% | Min. age/karma | Yes |
| 18 | r/ChemicalEngineering↗All things Chemical Engineering! | 142K | 406 | +15% | 25 | 24% | 81% | Min. age/karma | Yes |
| 19 | r/engineeringmemes↗There are lots of great memes out there that only engineers would understand. Since r/engineering prefers more serious posts, here's a subreddit for some nerdy humor. | 135K | 57 | +9% | 25 | 15% | 51% | 62% | Yes |
| 20 | r/STEW_ScTecEngWorld↗Welcome to r/STEWorld—where Science, Technology, and Engineering meet the rest of the World. Discover a community exploring STEM alongside everyday global interests and disciplines! | 124K | 277 | +28% | 38 | 12% | 49% | – | Yes |
| 21 | r/manufacturing↗A subreddit for anyone in the manufacturing industry. Content is very diverse: you'll find videos, articles and self posts just to name a few. | 105K | 531 | +31% | 33 | 15% | 42% | 100% | Yes |
| 22 | r/ComputerEngineering↗new-account friendlyWelcome to r/ComputerEngineering - A community for discussing computer engineering and its related areas (electrical engineering and computer science)! | 73K | 272 | +30% | 23 | 17% | 50% | 12% | Yes |
| 23 | r/chipdesign↗new-account friendlyA subreddit for the discussion of all things related to the creation (not usage of!) integrated circuits, both circuit- and process-level. | 62K | 440 | +51% | 26 | 14% | 60% | 12% | Yes |
| 24 | r/ControlTheory↗Welcome to r/ControlTheory | 58K | 72 | +34% | 26 | 9% | 78% | 19% | Yes |
| 25 | r/dataengineeringjobs↗A community for data engineering jobs and career questions. | 45K | 331 | +74% | 27 | 20% | 60% | 42% | Yes |
| 26 | r/machining↗Welcome to r/Machining We currently have an active giveaway! Check it out in the Metalworking Discord here! https://discord.gg/tybRmzQJmV Welcome to the community! | 44K | 93 | +24% | 35 | 7% | 56% | – | Yes |
| 27 | r/ROS↗This subreddit is for discussions around the Robot Operating System, or ROS. | 43K | 154 | +32% | 25 | 10% | 51% | 21% | Yes |
| 28 | r/Semiconductors↗All discussions on the topics of Semiconductors - the microchips and electronics that powers all of the world’s electronics; industry, research and education/career. | 42K | 396 | +65% | 31 | 14% | 53% | 50% | Yes |
| 29 | r/inventors↗new-account friendlyChat about your inventions with other inventors at any stage. Also for everyone interested in ethical interacting with inventions made by others. | 39K | 204 | +58% | 35 | 14% | 68% | 14% | Yes |
| 30 | r/AircraftMechanics↗new-account friendlyA place to talk about the best, worst job in the world. | 38K | 573 | +42% | 29 | 13% | 84% | 17% | Yes |
Show all 78 subreddits
| # | Subreddit | Members | Posts / month | Member growth, 12 mo | Median author age | Women | Posts with a reply | New-account posts removed | Links |
|---|---|---|---|---|---|---|---|---|---|
| 31 | r/Esphome↗ESPHome is a framework for working with ESP devices, and making them easier to setup and use in a home automation environment. | 38K | 132 | +39% | 38 | 7% | 73% | – | Yes |
| 32 | r/EngineeringManagers↗new-account friendlyExchange ideas on how to build up great, healthy teams and keep their members happy and motivated. | 36K | 156 | +161% | 37 | 14% | 71% | 14% | Yes |
| 33 | r/CivilEngineers_PH↗A community for Civil Engineers in the Philippines. 'Wag mahihiyang magtanong :) | 36K | 527 | +43% | 27 | 43% | 60% | 41% | Yes |
| 34 | r/PE_Exam↗Reviews and resources to help prepare for the Professional Engineering Exam (PE). Feel free to discuss how you are preparing, and what resources you are using to help you prepare for the exam. | 35K | 366 | +25% | 29 | 26% | 75% | 26% | Yes |
| 35 | r/beneater↗new-account friendlyDiscussion inspired by Ben Eater's YouTube video series. | 33K | 90 | +35% | 30 | 10% | 84% | 6% | Yes |
| 36 | r/materials↗Reddit for Materials Science and Engineering topics | 31K | 163 | +24% | 26 | 20% | 43% | 83% | Yes |
| 37 | r/bioengineering↗new-account friendlyA place for experts, engineers, students, and anyone interested in all things bioengineering/biomedical engineering. | 31K | 147 | +20% | 23 | 33% | 34% | 15% | Yes |
| 38 | r/MechanicalEngineer↗A community for those that practice the broad discipline of mechanical engineering. | 29K | 149 | +23% | 28 | 14% | 69% | 43% | Yes |
| 39 | r/metallurgy↗Welcome to r/metallurgy, a professional community dedicated to the science and engineering of metallic materials. Our members include metallurgists, materials scientists, engineers, researchers, and i | 29K | 87 | +41% | 33 | 13% | 66% | 56% | Yes |
| 40 | r/BiomedicalEngineers↗new-account friendlyAll things biomedical engineering. | 29K | 129 | +28% | 23 | 38% | 77% | 14% | Yes |
| 41 | r/mechatronics↗new-account friendlyMechatronics Engineering | 28K | 147 | +40% | 23 | 14% | 43% | 8% | Yes |
| 42 | r/MEPEngineering↗All general/specific discussions and debates of the Mechanical, Electrical & Plumbing Design Engineering. Welcome to the first real discussion about all things related to the safe and efficient design | 28K | 205 | +40% | 31 | 14% | 77% | 18% | Yes |
| 43 | r/softwareengineer↗A place for software engineers to discuss the profession, careers, industry trends, and the craft of building software. Whether you're just starting out or have decades of experience, thoughtful discu | 27K | 378 | – | 35 | 13% | 57% | – | No |
| 44 | r/dataengineersindia↗new-account friendlyA dedicated space for data engineering professionals in India to connect, share knowledge, and tackle data challenges together. | 24K | 613 | +122% | 26 | 20% | 61% | 15% | Yes |
| 45 | r/AutomotiveEngineering↗Discuss and share news in the automotive engineering world, get post-secondary and job advice, and insights/experiences about the industry. | 23K | 70 | +34% | 31 | 10% | 48% | Min. age/karma | Yes |
| 46 | r/Electricity↗ A reddit for anything about or related to Electricity. Discussions concerning electrical theory, phenomena, generation, and any related topics are welcome. | 22K | 187 | +47% | 34 | 17% | 49% | 30% | Yes |
| 47 | r/EnvironmentalEngineer↗A gathering place for environmental engineering topics | 22K | 89 | +21% | 26 | 43% | 52% | 39% | Yes |
| 48 | r/systems_engineering↗Our mission is to foster a collaborative space where professionals, students, and enthusiasts can come together to discuss and learn about Systems Engineering (as defined by INCOSE) and Model-Based Sy | 21K | 114 | +53% | 30 | 18% | 71% | 21% | Yes |
| 49 | r/bim↗new-account friendlyA place to discuss all things BIM. | 20K | 190 | +45% | 30 | 18% | 68% | 10% | Yes |
| 50 | r/Motors↗Discussion and questions related to any electric motor and drivers or electric generator. Adopted on Aug 9th 2019 (with 38 members). | 19K | 93 | +46% | 32 | 9% | 71% | 100% | Yes |
| 51 | r/BuildingAutomation↗Building Automation/Energy Management Control Systems. BAS, BMS, EMCS - Everything related to HVAC and facility controls. | 19K | 207 | +50% | 33 | 9% | 67% | 65% | Yes |
| 52 | r/ConstructionTech↗This is a place for construction professionals to talk about new tech in the field | 18K | 59 | +12% | 32 | 16% | 31% | 76% | Yes |
| 53 | r/rpa↗This sub is dedicated to discussion of robotic process automation, rpa tools and the field in general. | 18K | 35 | +11% | 30 | 14% | – | Min. age/karma | Yes |
| 54 | r/Geotech↗new-account friendlyr/Geotech is for all topics related to geotechnical issues of earth materials. | 17K | 80 | +24% | 32 | 15% | 75% | 13% | Yes |
| 55 | r/instrumentation↗new-account friendlyThis is a community for Instrumentation and Controls Technicians. It's a career-orientated place to talk about the trade, ask questions, etc. Check out the Resources below. | 16K | 120 | +41% | 32 | 9% | 67% | 13% | Yes |
| 56 | r/vlsi↗new-account friendlymake some pll phase noise | 16K | 397 | +151% | 23 | 21% | 59% | 7% | Yes |
| 57 | r/networkautomation↗A community for sharing knowledge and engaging with a growing community of network automation specialists. | 15K | 61 | +66% | 35 | 9% | 41% | – | Yes |
| 58 | r/LeanManufacturing↗A reddit community for sharing information, tips and stories about lean manufacturing, six sigma, 5S, process improvement, kanban, industrial engineering and related conent. | 14K | 139 | +43% | 35 | 12% | 38% | – | Yes |
| 59 | r/computerarchitecture↗Let's talk computer architecture. | 14K | 45 | – | 25 | 17% | 68% | – | Yes |
| 60 | r/SixSigma↗All things Six Sigma, quality, lean, etc. | 13K | 52 | +44% | 33 | 25% | 58% | – | Yes |
| 61 | r/CNCmachining↗CNC Machining | 12K | 142 | +36% | 35 | 9% | 31% | 22% | Yes |
| 62 | r/TechnicalArtist↗News and info for Technical Artists/Technical Directors working in the game, animation and vfx industry. Tools, workflows, software and results. | 12K | 89 | – | 30 | 23% | 43% | – | Yes |
| 63 | r/MarineEngineering↗A sub for seagoing Marine Engineering Officers. Please state your country/region with your post or question. | 11K | 57 | +41% | 27 | 14% | 82% | 34% | Yes |
| 64 | r/Hydraulics↗Information and conversation on any aspects of hydraulics from hydro-engineering to fluid power and pneumatics. | 11K | 104 | +45% | 35 | 7% | 63% | 49% | Yes |
| 65 | r/AmazonRME↗new-account friendlyAmazon, CBRE, JLL, C&W, and others - we are the people who maintain the Amazon Robots, Material Handling Equipment and their Control systems. | 11K | 179 | +29% | 29 | 18% | 87% | 6% | Yes |
| 66 | r/Engineers↗new-account friendlyA place for engineers; not neccessarily about engineering | 10K | 366 | – | 31 | 19% | 37% | 6% | Yes |
| 67 | r/Grid_Ops↗This is a sub-reddit for operators of the various power grids that span the globe. Discussion of current events, regulatory policies, operating standards, renewable energy, or anything else related to | 9.9K | 50 | +33% | 32 | 12% | 77% | – | Yes |
| 68 | r/powerengineering↗A place for power engineers, stationary engineers, operating engineers, students, and those interested in the trade to discuss topics relating to power engineering. | 9.1K | 57 | +27% | 31 | 12% | 88% | – | Yes |
| 69 | r/windturbine↗Welcome to r/windturbine! We are a subreddit which comprises of wind technicians and wind power experts and enthusiasts from around the world! Have a question about the industry? Want to share an awes | 8.3K | 51 | +27% | 30 | 13% | 55% | – | Yes |
| 70 | r/GeotechnicalEngineer↗Geotechnical engineering is the science that explains mechanics of soil and rock and its applications to the development of human kind. It includes, without being limited to, the analysis, design and | 7.9K | 38 | +27% | 32 | 19% | 49% | – | Yes |
| 71 | r/ubcengineering↗new-account friendlyOfficial UBC Engineering subreddit. We will be hosting online AMAs to answer prospective student questions. Upvote those you want to have answered. | 7.9K | 93 | – | 21 | 28% | 72% | 6% | Yes |
| 72 | r/PowerSystemsEE↗Power Systems | 7.9K | 86 | – | 30 | 11% | 69% | – | Yes |
| 73 | r/NuclearEngineering↗This subreddit primarily relates to nuclear engineering, but welcomes all things nuclear related. | 7.3K | 58 | – | 27 | 18% | 70% | – | Yes |
| 74 | r/EngineeringJobs↗Your go-to source for locating an engineering job in the Midwest/great lakes region. | 7.1K | 197 | – | 27 | 21% | 10% | – | Yes |
| 75 | r/USACE↗Anything related to the US Army Corps of Engineers. Projects, policies, careers, etc. are all welcome topics. | 7K | 46 | +18% | 34 | 35% | 88% | 56% | Yes |
| 76 | r/MechanicalDesign↗MechanicalDesign is a forum for Engineers looking for design inspiration, answers to technical design questions, and mechanical design review feedback. | 6.3K | 50 | – | 31 | 11% | – | – | Yes |
| 77 | r/RevitMEP↗Most users of Revit are on the architectural side of things so I figured there could be a place for the MEP engineers and contractors that use Revit. | 5.7K | 78 | – | 33 | 12% | 24% | – | Yes |
| 78 | r/petroleumengineers↗This community serves to help all levels of Petroleum Engineers from those thinking about joining the industry to experienced professionals. We share upcoming events, news, and discuss why petroleum e | 5K | 61 | – | 26 | 15% | 49% | – | Yes |
Looking for a ranking by size and growth? Top engineering subreddits by tier.
How this list is built
Subreddits are grouped into topics by what their posts are about; this list holds the engineering group. We include subreddits that are safe for work and had at least 30 new posts in September 2026, about one a day.
Members is Reddit's subscriber count; growth compares it with a year earlier. Posts with a reply is the share of posts that got at least one comment over the last three months. Median author age and women are estimated from what authors say about themselves, and shown only when enough of them did. New-account posts removed is the share of posts from accounts younger than 7 days that were removed; communities at or below 17% are marked new-account friendly. Min. age/karma means the subreddit asks for a minimum account age or karma before you can post.
The list is rebuilt every month from public Reddit posts and comments. Data and CSV are free to reuse under CC BY 4.0 with a link to this page.
Engineering subreddits: common questions
What is the biggest engineering subreddit?
r/AskEngineers, with 2.75M members in September 2026. Next are r/EngineeringPorn (1.44M) and r/EngineeringStudents (1.02M).
Which engineering subreddits are the most active?
By posts in September 2026: r/EngineeringStudents (1,742 posts), r/EngineeringResumes (1,305 posts) and r/civilengineering (1,190 posts).
Which engineering subreddits can a new account post in?
r/ComputerEngineering (12% of new-account posts removed), r/chipdesign (12% of new-account posts removed) and r/inventors (14% of new-account posts removed). They ask for no minimum karma or account age, and most posts from accounts under a week old stay up.
How often is this list updated?
Every month, when we rebuild our subreddit data. This version uses data for September 2026. Member counts come from Reddit; activity, removals and who writes come from public Reddit posts and comments.
Find the subreddits that fit your post
This list is the same for everyone. Find Subs narrows it to communities your account can post in, where your audience writes, and tells you when to post.