55
Zulip
Chat organised by topic, under Apache-2.0.
Zulip vs Slack
Zulip is listed as software that replaces Slack. It is not a product of Salesforce, and this page is not an endorsement by them. Measured score: 55.
The SaaS
Slack
Product of Salesforce. Software that replaces it.
| Zulip | Slack | |
|---|---|---|
| Measured score | 55 | — |
| Licence | Apache-2.0 | Vendor SaaS |
| Stack | Python | — |
| Docker | Not at usual paths | — |
| Hosted option | Vendor cloud listed | Their cloud |
| Last push | 2026-10-15 | — |
| Stars | 26,050 | — |