🆚 Lemmy Platform vs. OpenACS

📈 OpenACS is much more popular than Lemmy Platform.
🌍 OpenACS is more popular in all countries.

Statistics based on 3.3M+ analyzed websites. About this data

Lemmy Platform

OpenACS

Type

Content management system

About

Lemmy is a decentralized, open-source social link aggregation and discussion platform built on the ActivityPub protocol as an alternative to Reddit.

It is built in Rust and features federated communities across instances, upvotes and downvotes, threaded comments, moderation at both community and instance levels, and private messaging.

OpenACS is an open-source toolkit for building scalable, community-oriented web applications.

Website

join-lemmy.org #580,474

openacs.org #453,651

Pricing

Free ✔️Open source

Popularity

Determined by the number of sites using each technology.

The OpenACS CMS is much more popular than Lemmy Platform.

Total websites

Market share

CMS

Internet Forum Software

Popularity by country

Determined by the number of sites detected from each country.

OpenACS is more popular than Lemmy Platform in all countries.

Austria

United States

Guatemala

Spain

Popularity by domain category

Determined by the number of sites in each category.

Entertainment

Software/Hardware

Top sites

Top-ranked sites that use these technologies.

Name

Rank

Name

Rank

#300,993

#453,651

#1,369,771

Compare alternatives

Technologies with similar characteristics.

🗃️ About This Data

We evaluate the popularity of technologies based on the number of websites where we detect their usage.
Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
This report is based on the analysis of 3,375,483 websites.
Statistics were last calculated on May 5, 2026.
For more details, see our methodology and disclaimer.