AC
Alfresco Community Edition
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The open source Enterprise Content Management software that handles any type of content, allowing users to easily share and collaborate on content.

BU
Bugzilla
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General-purpose bugtracker and testing tool originally developed and used by the Mozilla project.

IN
Invoice Ninja
AAL ·★ 8k+
medium

Open-source invoicing, billing, and payment platform for freelancers and small businesses. Create quotes, track expenses, accept payments, and automate reminders

IT
ITFlow
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Client IT documentation, ticketing, invoicing and accounting for MSPs (Managed Service Providers)

JA
Janus
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General-purpose, lightweight, minimalist WebRTC Server

LI
LibreDesk
AGPL-3.0 ·★ 2.5k
medium

Self-hosted customer support desk with live chat, email, SLA management, and SSO built in. Free, open source, ships as a single Go binary

MA
MantisBT
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Bug tracker, fits best for software development

MA
Mautic
GPL-3.0 ·★ 7k+
hard

Open-source marketing automation platform. Email campaigns, drip sequences, lead scoring, landing pages, forms, and CRM integration — all self-hosted

ME
Metabase
AGPL-3.0 ·★ 39k+
easy

Open-source business intelligence tool. Connect to your database and build dashboards, charts, and reports without writing SQL — or with it, if you prefer

NE
Nextcloud
AGPL-3.0

The ultimate 'Business-in-a-Box.' A comprehensive, open-source alternative to Google Workspace and Microsoft 365

NO
NocoDB
AGPL-3.0 ·★ 50k+
easy

Open-source Airtable alternative that turns any SQL database into a smart spreadsheet. Connects to MySQL, Postgres, SQLite, and more with a no-code interface

OT
OTOBO
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Flexible web-based ticketing system used for customer service, help desk, IT service management

PA
Papermark
AGPL-3.0

Open-source document sharing alternative to DocSend. Share documents via secure links with custom domains, branding, and built-in analytics to track who views your files

RT
Request Tracker
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Enterprise-grade issue tracking system.

RI
Roundup Issue Tracker
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Simple-to-use and -install issue tracking system with command-line, web, REST, XML-RPC, and e-mail interfaces. Designed with flexibility in mind - not just another bug tracker.

TW
Twenty
AGPL-3.0

Open-source CRM alternative to Salesforce. Define objects, fields, relationships, and views as code, with support for AI agents and custom app development