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r/Kotlin↗

Discussion about Kotlin, a statically typed programming language for the JVM, Android, JavaScript, and native.

109k subscribers104 posts / mo in Sep 202682 authors / mosince 2011

r/Kotlin has 109k members (+10% over the last 12 months). It gets about 104 posts a month from 82 people. Top topics: IDEs and Editors, Android Development and Java Development Tools & Features.

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Free report

When to post on r/Kotlin

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Visitors without an account can open 3 subreddit reports a day. The best time to post on r/Kotlin, removal risk and the rest of the report are one step away.

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Size and growth

How r/Kotlin has grown

r/Kotlin

Subscriber growth

Subscribers over time

+10%in 12 months · +1.6% in 3 months · +0.3% in 1 month
Oct 2026109k
Growing109k subscribers
Data since Mar 2018Live · through Oct 2026
r/Kotlin

Monthly activity

Posts, comments and authors per month

−38%vs Sep 2025 · −1.6% last 3 months vs the 3 before
Sep 2026104
QuieterPeaked at 239 in May 2024
Data through Sep 2026 · October usually lands mid-November

What people talk about

Topics and brands on r/Kotlin

Top topics

Share of the subreddit's posts

  1. IDEs and Editors0.5%
  2. Android Development0.5%
  3. Java Development Tools & Features0.3%
  4. Legacy Code Refactoring0.2%
  5. Testing Practices0.2%

Brands people mention

Most-mentioned brands and sites, last 12 months

  1. JetBrains
  2. Kotlin
  3. Medium
  4. Android
  5. Spring

The full report

Everything else about r/Kotlin

Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.

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