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r/erlang↗

erlang is a functional, concurrent, fault-tolerant programming language

/r/Erlang is focused around the erlang programming language and its BEAM runtime. Other BEAM runtime languages are also welcome.

11k subscribers16 posts / mo in Sep 202611 authors / mosince 2008

r/erlang has 11k members (+6.9% over the last 12 months). It gets about 16 posts a month from 11 people. Top topics: Haskell Programming, Programming Languages and Common Lisp.

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When to post on r/erlang

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Size and growth

How r/erlang has grown

r/erlang

Subscriber growth

Subscribers over time

+6.9%in 12 months · +1.3% in 3 months · +0.6% in 1 month
Sep 202611k
Growing11k subscribers
Data since Mar 2018Live · through Sep 2026
r/erlang

Monthly activity

Posts, comments and authors per month

+300%vs Sep 2025 · +23% last 3 months vs the 3 before
Sep 202616
BusierPeaked at 28 in Dec 2021
Data through Sep 2026 · October usually lands mid-November

What people talk about

Topics and brands on r/erlang

Top topics

Share of the subreddit's posts

  1. Haskell Programming0.6%
  2. Programming Languages0.5%
  3. Common Lisp0.3%
  4. ClojureScript/Web Development0.3%
  5. Testing Practices0.3%

Can you post

Posting rules for r/erlang

Which post types r/erlang allows, the karma and account age it asks for, required flair, and every community rule — read from Reddit.

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Timing and removals

How often posts get removed on r/erlang

The best day and hour for r/erlang, how many posts moderators remove and which kinds, the shape of its year, and weekdays against weekends.

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What to post

What works on r/erlang

Title and body length that does well on r/erlang, and its mix of text posts, links, images, galleries and video.

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Who writes here

Who posts on r/erlang

Gender and age of the people who write on r/erlang, the countries and US states they live in, their jobs, and whether a few regulars carry the conversation.

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How they talk

What people ask for on r/erlang

Requests for recommendations, help and alternatives on r/erlang, its signature words and phrases, the brands and sites people link with counts, and the tone of the comments.

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The full report

See all of r/erlang

Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research