Zulip
Open-source team chat where every conversation has a topic, so threads stay readable.
Web AppFree planWeb, macOS
4.5Visit
Web App
Pumble
Team chat with a free plan for unlimited users and unlimited message history.
Built with love by Shushant Lakhyani. Building bestproductivityresources.com
What is Pumble?
Pumble is a Slack-style team chat app from CAKE.com with channels, direct messages, threads and calls. Its free plan covers an unlimited number of users with unlimited message history and 10 GB of storage per workspace. Paid plans start at $2.49 per seat a month billed annually. Apps are available for Mac, Windows, Linux, iOS and Android.
Pros
- Free plan keeps your full message history
- Unlimited users on the free plan
- Familiar Slack-like layout, so teams switch easily
Cons
- Fewer third-party integrations than Slack
- Storage is capped at 10 GB per workspace on the free plan
Who should use Pumble
Small teams that outgrew Slack's 90-day history on the free plan.
Who may not need it
Teams that depend on many Slack integrations.
Pumble alternatives
Similar resources to Pumble, picked from the directory.
Mattermost
Self-hosted, open-source team chat with a free edition for small teams.
Web AppFree planWeb, Windows
4.4Visit
Rocket.Chat
Open-source team chat you host yourself, free for up to 50 users.
Web AppFree planWeb, Windows
4.2Visit
Slack
Team communication organised into channels.
Web AppFree planWeb, macOS
4.2Visit
Element
Open-source, Matrix-based messaging you can self-host for free.
Web AppFree planWeb, Windows
4.3Visit
cumora
Where agent teams gather — cross-platform team chat where AI agents are first-class teammates.
Desktop AppFreemacOS, Windows
4.5Visit
Free alternatives to Pumble
Free resources that cover similar ground.
Microsoft Teams (free)
Microsoft's free chat and video meetings for personal use.
Web AppFreeWeb, Windows
4.0Visit
Nextcloud
Open-source, self-hosted file sync and sharing: your own Dropbox.
Web AppFreeWeb, Windows
4.4Visit
TaskView
A self-hosted project and task management platform built for clarity and control.
Web AppFreeWeb, Cross-Platform
4.3Visit
Zoho Sheet
A free spreadsheet app with real-time collaboration, pivot tables and an AI assistant.
Web AppFreeWeb, Windows
4.3Visit
Storybook
Frontend workshop for building UI components and pages in isolation.
FrameworkFreeWeb
4.7Visit
OpenWA
A free, open source, self-hosted WhatsApp API gateway.
Web AppFreeWeb, Linux
4.5Visit
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