---
description: View GetApp's list to see the best-rated Open source Instant Messaging Software. We provide UK business users free, in-depth and specific guidance on the best software type for their business. Our user-friendly interactive tool allows you to filter by price, features, and reviews.
image: https://gdm-localsites-assets-gfprod.imgix.net/images/getapp/og_logo-94fd2a03a6c7a0e54fc0c9e21a1c0ce9.png
title: Open source Instant Messaging Software - Prices & Reviews - GetApp UK 2026
---

Breadcrumb: [Home](/) > [Open Source Instant Messaging Software](https://www.getapp.co.uk/directory/320/instant-messaging-chat/software)

# Instant Messaging Software

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

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## Products

1. [Telegram](https://www.getapp.co.uk/software/114023/telegram) — 4.7/5 (6406 reviews) — Cloud-based mobile and desktop messaging app for all devices
2. [Connecteam](https://www.getapp.co.uk/software/105401/connecteam) — 4.6/5 (5058 reviews) — Enhance employee management with the only all-in-one app
3. [Zoho Desk](https://www.getapp.co.uk/software/10036/zoho-desk) — 4.5/5 (2211 reviews) — Customer service software for businesses of all sizes
4. [Workplace from Meta](https://www.getapp.co.uk/software/105443/workplace) — 4.4/5 (1351 reviews) — A simple and secure way to connect your organization.
5. [Mattermost](https://www.getapp.co.uk/software/111417/mattermost) — 4.4/5 (168 reviews) — Open source workplace messaging for web, PCs \& phones
6. [Rocket.Chat](https://www.getapp.co.uk/software/112763/rocket-chat) — 4.3/5 (156 reviews) — The Leading Enterprise Communication Hub
7. [eXo Platform](https://www.getapp.co.uk/software/91784/exo-platform) — 4.6/5 (120 reviews) — Digital Workplace Software
8. [Zoho Cliq](https://www.getapp.co.uk/software/111057/zoho-cliq) — 4.6/5 (108 reviews) — Cloud-based software for team collaboration \& communication
9. [Zimbra Collaboration Suite](https://www.getapp.co.uk/software/1711/zimbra-collaboration-suite) — 4.4/5 (92 reviews) — Enterprise collaboration and online community software.
10. [Wire](https://www.getapp.co.uk/software/112529/wire) — 4.5/5 (70 reviews) — The most secure collaboration platform.
11. [Threema Work](https://www.getapp.co.uk/software/2062353/threema-work) — 4.9/5 (10 reviews) — Secure and privacy-compliant business messenger
12. [TeamWox](https://www.getapp.co.uk/software/9849/teamwox-groupware) — 5.0/5 (1 reviews) — Online groupware and collaboration software
13. [Threema OnPrem](https://www.getapp.co.uk/software/2063513/threema-onprem) (0 reviews) — Threema OnPrem is a self-hosted business messaging solution.

## Related Categories

- [Team Communication Software](https://www.getapp.co.uk/directory/1257/team-communication/software)
- [Productivity Software](https://www.getapp.co.uk/directory/330/productivity/software)
- [File Sharing Software](https://www.getapp.co.uk/directory/422/file-sharing-api/software)
- [Internal Communications Software](https://www.getapp.co.uk/directory/1267/internal-communications/software)
- [Community Software](https://www.getapp.co.uk/directory/585/online-community/software)

## Links

- [View on GetApp](https://www.getapp.co.uk/directory/320/instant-messaging-chat/software)
- [All Categories](https://www.getapp.co.uk/directory)

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