---
description: Gratis Softwareliste der Top Open Source Instant Messenger & Chat Software Anbieter und Anwendungen. Die besten Tools im Überblick für eine schnelle und fundierte Softwareauswahl. Filtere jetzt nach Preismodell, Funktionen, Nutzerbewertungen und vielem mehr.
image: https://gdm-localsites-assets-gfprod.imgix.net/images/getapp/og_logo-94fd2a03a6c7a0e54fc0c9e21a1c0ce9.png
title: Open Source Instant Messenger & Chat Software - Top Tools & Anbieter im Vergleich | GetApp Deutschland 2026
---

Breadcrumb: [Startseite](/) > [Open Source Instant Messenger & Chat Software](https://www.getapp.de/directory/320/instant-messaging-chat/software)

# Instant Messenger & Chat Software

Canonical: https://www.getapp.de/directory/320/instant-messaging-chat/software

-----

## Produkte

1. [Telegram](https://www.getapp.de/software/114023/telegram) — 4.7/5 (6406 reviews) — Cloudbasierte mobile und Desktop-Messaging-App für alle Geräte
2. [Connecteam](https://www.getapp.de/software/105401/connecteam) — 4.6/5 (5058 reviews) — Erhalte genaue Arbeitszeittabellen und Rechnungen kostenlos.
3. [Zoho Desk](https://www.getapp.de/software/10036/zoho-desk) — 4.5/5 (2211 reviews) — Die erste kontextsensitive Helpdesk-Software der Branche
4. [Workplace from Meta](https://www.getapp.de/software/105443/workplace) — 4.4/5 (1351 reviews) — Sichere Plattform für Enterprise Social Networking und Kommunikation.
5. [Mattermost](https://www.getapp.de/software/111417/mattermost) — 4.4/5 (168 reviews) — Open-Source-Messaging am Arbeitsplatz für das Web, PCs und Telefone.
6. [Rocket.Chat](https://www.getapp.de/software/112763/rocket-chat) — 4.3/5 (156 reviews) — Open-Source-Teamchat-Kommunikationstool.
7. [eXo Platform](https://www.getapp.de/software/91784/exo-platform) — 4.6/5 (120 reviews) — Unternehmenssoftware für digitale Zusammenarbeit.
8. [Zoho Cliq](https://www.getapp.de/software/111057/zoho-cliq) — 4.6/5 (108 reviews) — Team-Kommunikation Software
9. [Zimbra Collaboration Suite](https://www.getapp.de/software/1711/zimbra-collaboration-suite) — 4.4/5 (92 reviews) — Software für Unternehmenszusammenarbeit und Online-Community für Teams.
10. [Wire](https://www.getapp.de/software/112529/wire) — 4.5/5 (70 reviews) — Eine Kollaborationsplattform mit sehr hohen Sicherheitsstandards.
11. [Threema Work](https://www.getapp.de/software/2062353/threema-work) — 4.9/5 (10 reviews) — Sicherer und datenschutzkonformer Business-Messenger
12. [Threema OnPrem](https://www.getapp.de/software/2063513/threema-onprem) (0 reviews) — Threema OnPrem ist eine selbst gehostete Business-Messaging-Lösung.

## Ähnliche Kategorien

- [Kommunikationstools für Teams](https://www.getapp.de/directory/1257/team-communication/software)
- [Produktivitätssoftware](https://www.getapp.de/directory/330/productivity/software)
- [Filesharing Programme](https://www.getapp.de/directory/422/file-sharing-api/software)
- [Interne Kommunikation Tools](https://www.getapp.de/directory/1267/internal-communications/software)
- [Community Software](https://www.getapp.de/directory/585/online-community/software)

## Links

- [Auf GetApp anzeigen](https://www.getapp.de/directory/320/instant-messaging-chat/software)
- [Alle Kategorien](https://www.getapp.de/directory)

-----

## Strukturierte Daten

<script type="application/ld+json">
  {"@context":"https://schema.org","@graph":[{"name":"GetApp Deutschland","address":{"@type":"PostalAddress","addressLocality":"München","addressRegion":"BY","postalCode":"81829","streetAddress":"Lehrer-Wirth-Str. 2 81829 München Deutschland"},"description":"Vergleiche und bewerte Software für kleine und mittelständische Unternehmen. GetApp Deutschland bietet Software, SaaS & Cloud Apps, unabhängige Bewertungen und Reviews.","email":"info@getapp.de","url":"https://www.getapp.de/","logo":"https://dm-localsites-assets-prod.imgix.net/images/getapp/getapp-logo-light-mode-5f7ee07199c9b3b045bc654a55a2b9fa.svg","@type":"Organization","@id":"https://www.getapp.de/#organization","parentOrganization":"Gartner, Inc.","sameAs":["https://www.linkedin.com/company/getapp-com-a-gartner-company/","https://twitter.com/GetApp","https://www.facebook.com/GetAppcom"]},{"name":"GetApp Deutschland","url":"https://www.getapp.de/","@type":"WebSite","@id":"https://www.getapp.de/#website","publisher":{"@id":"https://www.getapp.de/#organization"},"potentialAction":{"query":"required","target":"https://www.getapp.de/search/?q={search_term_string}","@type":"SearchAction","query-input":"required name=search_term_string"}},{"name":"Instant Messenger & Chat Software","description":"Gratis Softwareliste der Top Open Source Instant Messenger & Chat Software Anbieter und Anwendungen. Die besten Tools im Überblick für eine schnelle und fundierte Softwareauswahl. Filtere jetzt nach Preismodell, Funktionen, Nutzerbewertungen und vielem mehr.","url":"https://www.getapp.de/directory/320/instant-messaging-chat/pricing/open-source/software","about":{"@id":"https://www.getapp.de/directory/320/instant-messaging-chat/pricing/open-source/software#itemlist"},"breadcrumb":{"@id":"https://www.getapp.de/directory/320/instant-messaging-chat/pricing/open-source/software#breadcrumblist"},"@type":["WebPage","CollectionPage"],"@id":"https://www.getapp.de/directory/320/instant-messaging-chat/pricing/open-source/software#webpage","mainEntity":{"@id":"https://www.getapp.de/directory/320/instant-messaging-chat/pricing/open-source/software#itemlist"},"isPartOf":{"@id":"https://www.getapp.de/#website"},"inLanguage":"de","publisher":{"@id":"https://www.getapp.de/#organization"}},{"@type":"BreadcrumbList","itemListElement":[{"name":"Startseite","position":1,"item":"/","@type":"ListItem"},{"name":"Open Source Instant Messenger & Chat Software","position":2,"item":"https://www.getapp.de/directory/320/instant-messaging-chat/software","@type":"ListItem"}],"@id":"https://www.getapp.de/directory/320/instant-messaging-chat/pricing/open-source/software#breadcrumblist"}]}
</script><script type="application/ld+json">
  {"name":"Open Source Instant Messenger &amp; Chat Software - Top Tools &amp; Anbieter im Vergleich | GetApp Deutschland 2026","@context":"https://schema.org","@type":"ItemList","itemListElement":[{"name":"Telegram","position":1,"image":"https://gdm-catalog-fmapi-prod.imgix.net/ProductLogo/4541ebfa-1b8a-4b51-8f17-2374c1821504.png","url":"https://www.getapp.de/software/114023/telegram","@type":"ListItem"},{"name":"Connecteam","position":2,"image":"https://gdm-catalog-fmapi-prod.imgix.net/ProductLogo/2eb9cf79-d85e-4c42-b830-38b3ba6e5ea1.png","url":"https://www.getapp.de/software/105401/connecteam","@type":"ListItem"},{"name":"Zoho Desk","position":3,"image":"https://gdm-catalog-fmapi-prod.imgix.net/ProductLogo/8d6440f4-1b79-46d5-a3ca-d4a0ae9e3100.png","url":"https://www.getapp.de/software/10036/zoho-desk","@type":"ListItem"},{"name":"Workplace from Meta","position":4,"image":"https://gdm-catalog-fmapi-prod.imgix.net/ProductLogo/9158f690-b30c-4217-9e59-db3bcd7024a0.jpeg","url":"https://www.getapp.de/software/105443/workplace","@type":"ListItem"},{"name":"Mattermost","position":5,"image":"https://gdm-catalog-fmapi-prod.imgix.net/ProductLogo/83818d5f-7118-419a-895a-ab7e7b0134cd.jpeg","url":"https://www.getapp.de/software/111417/mattermost","@type":"ListItem"},{"name":"Rocket.Chat","position":6,"image":"https://gdm-catalog-fmapi-prod.imgix.net/ProductLogo/69b2aa2f-9a1e-42f8-a445-90369f2dc4bc.png","url":"https://www.getapp.de/software/112763/rocket-chat","@type":"ListItem"},{"name":"eXo Platform","position":7,"image":"https://gdm-catalog-fmapi-prod.imgix.net/ProductLogo/230b2856-fe7c-44f6-ba15-333c0fc6c9d2.png","url":"https://www.getapp.de/software/91784/exo-platform","@type":"ListItem"},{"name":"Zoho Cliq","position":8,"image":"https://gdm-catalog-fmapi-prod.imgix.net/ProductLogo/7ad8ef27-d58d-47ff-bfa9-28a293d2d243.png","url":"https://www.getapp.de/software/111057/zoho-cliq","@type":"ListItem"},{"name":"Zimbra Collaboration Suite","position":9,"image":"https://gdm-catalog-fmapi-prod.imgix.net/ProductLogo/3210c2de-ffe5-48c2-9238-c2bdacd7b06c.png","url":"https://www.getapp.de/software/1711/zimbra-collaboration-suite","@type":"ListItem"},{"name":"Wire","position":10,"image":"https://gdm-catalog-fmapi-prod.imgix.net/ProductLogo/e7fcd6b7-b113-40e2-bc7d-9e84a31a62bf.png","url":"https://www.getapp.de/software/112529/wire","@type":"ListItem"},{"name":"Threema Work","position":11,"image":"https://gdm-catalog-fmapi-prod.imgix.net/ProductLogo/a7ad9129-8c4b-4768-9e24-78585a72442b.png","url":"https://www.getapp.de/software/2062353/threema-work","@type":"ListItem"},{"name":"Threema OnPrem","position":12,"image":"https://gdm-catalog-fmapi-prod.imgix.net/ProductLogo/9f2c8169-afa8-49aa-98df-9cb533809e47.png","url":"https://www.getapp.de/software/2063513/threema-onprem","@type":"ListItem"}],"@id":"https://www.getapp.de/directory/320/instant-messaging-chat/pricing/open-source/software#itemlist","numberOfItems":12}
</script>