| Message history search |
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| Users |
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| Streams |
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| Topic-based threading |
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| File sharing and storage |
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| Voice and video calls (1:1)
Via third party service like Jitsi, Zoom, etc.
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| Voice and video calls (group)
Via third party service like Jitsi, Zoom, etc.
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| Integrations with other apps |
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| Localized in more than N languages |
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| Web app
Any modern browser
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| Desktop apps
Windows, Mac, Linux
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| Mobile apps
iOS and Android
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| Terminal app |
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| Mobile push notifications |
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| Expressive formatting
Code syntax highlighting, LaTeX, etc.
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| Collaborative messages
Polls, todo lists
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| Extensive keyboard shortcuts |
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| Move messages between streams and topics |
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| Resolve topics |
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| Permanent message links |
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| User status and availability |
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| Custom emoji |
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| Read receipts |
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| Typing notifications |
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| Send later, mark unread, and other workflows |
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| Highly configurable notification settings |
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| Previews for links, images and videos |
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| Linkifiers |
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| Email authentication |
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| Reusable invitation links |
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| OAuth social logins
Google, GitHub, GitLab, Apple
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| Custom profile fields |
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| SSO with Azure Active Directory |
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| SSO with SAML
Including Okta and OneLogIn
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| SSO with OpenID Connect |
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|
100+ authentication options
With python-social-auth
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| AD/LDAP user sync |
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| AD/LDAP group sync |
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| SCIM user sync |
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| Custom user groups |
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| Guest users |
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| Limited guest users |
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| 100% open-source, auditable codebase |
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| Restricted email domains |
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| Custom password strength requirement |
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| TLS encryption with Let's Encrypt |
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| Custom SSL certificate authority |
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| Firewalled hosting |
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| Air-gapped hosting |
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| Detailed audit log of administrative actions |
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| Data encryption at rest |
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| No-content push notifications |
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| Automated backup tool |
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| Revoke and reset any user's credentials |
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| API endpoint access rate limits |
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| Configurable call provider
Zoom, Jitsi, BigBlueButton, etc.
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| Native GIPHY integration |
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| 130+ native integations |
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| 1000s of integrations though Zapier and IFTTT |
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| Admin controls for all bots and integrations |
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| Custom webhooks |
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| REST API custom integrations |
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| Chat bridges with Slack, Microsoft Teams, Matrix and others |
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| AI / LLM integration |
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| Private streams with shared history |
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| Private streams with private history |
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| Stream posting permissions |
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| Permissions for editing, deleting and moving messages |
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| Configure initial settings for new users |
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| Configure initial streams for new users |
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| Usage statistics charts |
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| Custom branding |
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| Message editing and deletion policies |
|
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| Complete data exports |
|
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| Granular data retention policies |
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| Compliance exports |
|
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| GDPR compliant deployment |
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| HIPAA compliant deployment |
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| Compliance customization and support |
|
billed hourly |
billed hourly |
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| Chat support in the Zulip development community |
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| Feature feedback sessions |
chat only |
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| Email support |
|
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| Import data from Slack, Mattermost, Gitter or Rocket.Chat |
|
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| Import data from other chat products |
|
|
billed hourly |
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| Implementation consulting |
|
billed hourly |
billed hourly |
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| Training sessions |
|
billed hourly |
billed hourly |
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| Custom feature development |
|
|
billed hourly |
|
| Realtime support for installation and upgrades |
|
|
billed hourly |
|
| Advance notice for security releases |
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username