compare
MongooseIM vs Openfire
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | MongooseIM | Openfire |
|---|---|---|
| Language | Erlang | Java |
| Licence | Other | Apache-2.0 |
| Stars | 1.8k | 3.1k |
| Latest | 6.9.0 | v5.1.2 |
| Last push | 2026-10-01 | 2026-10-01 |
| Release cadence | about 38 days between releases | about 38 days between releases |
| Active contributors | 9 commit authors on the default branch in the last 90 days | 5 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Slack. Alternatives to Slack →
PartialMongooseIMA clustered XMPP server built for large deployments; teams chat through an XMPP client.
PartialOpenfireAn XMPP server with a web admin console; teams chat through an XMPP client such as Spark.
MongooseIM
MongooseIM
unsigned The latest release, 6.9.0, carries no signature GitHub could verify.
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Openfire
✓ signed The latest release, v5.1.2, carries a signature GitHub verified.
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