Browse free open source Business software and projects for Windows and Mobile Operating Systems below. Use the toggles on the left to filter open source Business software by OS, license, language, programming language, and project status.

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  • 1
    Dolibarr ERP - CRM

    Dolibarr ERP - CRM

    Open source ERP and CRM web software for business

    Dolibarr ERP - CRM is an easy to use ERP and CRM open source software package (run with a web php server or as standalone software) for businesses, foundations or freelancers (prospect, invoicing, inventory, warehouse, order, shipment, POS, members for foundations, bank accounts...). Dolibarr is also available with auto-installers for users with no technical knowledge to install Dolibarr and all its prerequisites (Apache, Mysql, PHP) with just one package. Available platforms for such packages are: Windows, Debian, Ubuntu, Mint, Redhat, Fedora, OpenSuse, Mandriva, Mageia. Other platform can use the generic distribution. This is a modular product, than can be enhanced with tons of external modules (to provide you features not available by default) from https://www.dolistore.com Download Dolibarr ERP - CRM here or sign up for 15-day free trial of the cloud-based application with free updates and support at one of the Cloud providers https://saas.dolibarr.org/
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    Downloads: 4,635 This Week
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  • 2
    Pandora Open

    Pandora Open

    Open Source Monitoring System for performance and availability.

    Pandora OPEN is a high-performance, 100% open-source monitoring ecosystem, born as the independent evolution of the Pandora FMS community branch after version 777. Licensed under GPLv2, it provides a modular and sovereign platform for supervising networks, servers, and applications without commercial dependencies. It features multi-platform agents, remote monitoring (SNMP, WMI, HTTP), GIS maps, and advanced visual dashboards. Entirely maintained by the community on GitHub, it ensures total transparency, technical flexibility, and absolute freedom for system administrators.
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    Downloads: 1,070 This Week
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  • 3
    AppFlowy

    AppFlowy

    Bring projects, wikis, and teams together with AI.

    AppFlowy is an AI collaborative workspace where you can achieve more without losing control of your data. It is the best open source alternative to Notion, offering a 100% offline mode and self-hosting with a cloud service of your choice. Build a centralized workspace for your wiki, projects, and notes with AppFlowy. It allows you to organize and visualize your data in tables, Kanban boards, calendars, and more. You can filter and sort your data in any way you want. AppFlowy comes with a beautiful rich-text editor that goes beyond just text and bullet points, offering 20+ content types, easy-to-use customized themes, keyboard shortcuts, and color options. It supports real-time team collaboration, enabling you to work with your friends and teammates on the same document in real time, similar to Google Docs. AppFlowy is powered by AppFlowy AI, which is accessible, collaborative, and contextual. Supercharge any type of work in a collaborative team workspace.
    Downloads: 46 This Week
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  • 4
    Calendar
    Calendar、Task This is only a read-only mirror repository. Main repository: https://github.com/KangLin/Calendar
    Downloads: 40 This Week
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  • 5
    Lifeograph

    Lifeograph

    Advanced personal note taking application

    Lifeograph is a diary program to take personal notes on life. It has all essential functionality expected in a diary program and strives to have a clean and streamlined user interface.
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    Downloads: 29 This Week
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  • 6
    ioDraw

    ioDraw

    Free software for making Flow chart, Mind map, Gantt chart, Whiteboard

    ioDraw is a free online drawing software, which is used to make flow chart, mind map, Gantt chart, whiteboard, mermaid, poster, and more—no registration required. It also features AI-generated charts.
    Downloads: 13 This Week
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  • 7
    X2CRM

    X2CRM

    X2CRM - Workflow, Sales, Marketing, Workflow, Custom Apps, PHP, MySQL

    X2CRM Open Source Sales CRM: X2Engine, X2CRM is an Open Source PHP Customer Relationship Management, Sales, Contact Management, Customer Service and Marketing CRM software application. X2CRM helps you optimize your contacts to help you sell more and grow your business. Very powerful B2C and B2B sales management app. Build on top of the Yii framework. Supports all browsers, iPads, iPhones and most mobile devices. X2CRM Key Features Workflow Designer Mobile Apps Web and Facebook Lead Capture Forms Lead Nurturing, Scoring and Intelligent Routing Contact Activity Management Sales Process Work-flow Engine Email Correspondence Product and Sales Quotes User Profile Pages and Activity Streams Field Security, Roles and Sales Teams Visual Form Editor for Admins Reporting Dashboard iPad and Mobile Device Apps X2Studio, an administrative tool, allows developers to create and share new application modules without any programming knowledge.
    Downloads: 6 This Week
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  • 8
    openCRX - Enterprise Class CRM

    openCRX - Enterprise Class CRM

    professional CRM and groupware service, ready for the cloud

    openCRX moved to https://github.com/opencrx
    Downloads: 3 This Week
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  • 9
    Django-CRM - Free Open Source  Software

    Django-CRM - Free Open Source Software

    Enterprise CRM software + Tasks management, Email marketing and more!

    Django CRM system is easy to use and can be run on a personal laptop for a private entrepreneur (for example) or on a cloud web server for a large enterprise. Written in Python, CRM is an open-source software package for managing customer interactions and sales. This free CRM software is a powerful tool designed to optimize workflows, and support data-driven decisions. Key features include role-based access control, intuitive navigation, powerful filtering, and search functionalities. The CRM software suite efficiently manages commercial requests, companies, leads, and deals, providing tools for detailed tracking, sorting, and analysis. The eCRM software supports multiple currencies, payment tracking, and shipment management, ensuring comprehensive financial oversight. Additionally, task management, office memos, and email integration enhance collaboration and communication, making this Django CRM very helpful for boosting productivity and maintaining organized business processes.
    Downloads: 8 This Week
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    AppSignal installs in minutes and auto-configures dashboards, alerts, and error tracking.

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  • 10
    Mindwtr

    Mindwtr

    A complete Getting Things Done (GTD) productivity system for desktop a

    Mindwtr: The Privacy-First GTD System Mindwtr is a Getting Things Done (GTD) productivity tool designed for "Mind Like Water." It runs completely offline—no accounts, no tracking, and no subscriptions. The Core GTD Workflow Capture: Instantly offload thoughts to your Inbox. Clarify: Process tasks rapidly with the built-in "2-Minute Rule" timer. Organize: Sort tasks by Contexts (@work, @home), Areas, and Projects. Reflect: Keep your system trustworthy with a guided Weekly Review. Engage: Filter Next Actions by energy level or time available. Powerful Features Local-First: Your data lives on your device (SQLite). You own it 100%. Flexible Sync: Sync privately via File System (Syncthing, iCloud) or WebDAV (Nextcloud). Focus View: A unified dashboard for your calendar events and next actions. Kanban Boards: Visualize projects with drag-and-drop columns. Stop managing your data. Start getting things done.
    Downloads: 12 This Week
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  • 11
    ezBookkeeping

    ezBookkeeping

    A lightweight personal finance app hosted by yourself.

    ezBookkeeping is a lightweight, self-hosted personal finance app with a user-friendly interface and powerful bookkeeping features. It helps you record daily transactions, import data from various sources, and quickly search and filter your bills. You can analyze historical data using built-in charts or perform custom queries with your own chart dimensions to better understand spending patterns and financial trends. ezBookkeeping is easy to deploy, and you can start it with just one single Docker command. Designed to be resource-efficient, it runs smoothly on devices such as Raspberry Pi, NAS, and MicroServers. ezBookkeeping offers tailored interfaces for both mobile and desktop devices. With support for PWA (Progressive Web Apps), you can even add it to your mobile home screen and use it like a native app. Live Demo: https://ezbookkeeping-demo.mayswind.net
    Downloads: 6 This Week
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  • 12

    QNE Accounting Software

    QNE: Accounting Payroll Software System Malaysia

    QNE Software Sdn Bhd (QNE) is a dynamic organization located in Kuala Lumpur (KL) that actively provides Accounting System to the South East Asia market. QNE’s solutions are designed specifically to meet the requirement of local business practices and challenging environments. Since QNE (formally known as OneStop Software Solutions (M) Sdn Bhd) was formed on 15 August 2001 under the Companies Act 1965, QNE’s is known for its strong commitment to research and development. As a result, QNE was awarded the MSC Pioneer Status in April 2005. With a strong commitment to research and development, QNE is able to provide users with new applications and features that help the users to meet the challenging and demanding business environment. QNE is also dedicated to participate actively in MSC and share the vision towards a K-economy in the year 2020. Supported by a localized team of qualified and skilled technical specialists, QNE is capable of providing speedy responses to users which add
    Downloads: 2 This Week
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  • 13
    TAO Translator

    TAO Translator

    Online translator with some advanced features

    TAO Translator (formerly, The Advanced Online Translator) uses online translation services to provide translations. Currently supported services: * Google Translate - supports translation, transliteration for most non-latin scripts, language detection, and dictionary with reverse translations for single words. * Microsoft Translator (a.k.a. Bing Translator) - supports translation and language detection. * Yandex.Translate - supports translation and language detection. * Yandex.Dictionaries - supports dictionary with transcription for some languages, synonyms, and reverse translations. More services might be added in future. This project is archive of all TAO Translator releases.
    Downloads: 2 This Week
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  • 14

    KBPublisher Community Edition

    KBPublisher is Knowledge Management Software.

    Store information for customer support, company intranet, employee training, and more with our secure knowledge management software. KBPublisher can help you give customers the answers they need and resolve issues quickly and efficiently. Our knowledge base software can help your employees acquire job knowledge faster, reducing training time, and driving higher performance and job satisfaction. Use it to share knowledge. Publish and manage articles, white papers, user manuals, business processes, FAQs, online help, APIs, or any other type of information. How to install KBPublisher https://www.kbpublisher.com/kb/installation-5/
    Downloads: 1 This Week
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  • 15
    Apache Answer

    Apache Answer

    Free and open source Q&A platform software for all the teams.

    Apache Answer is an open-source software project under incubation at the Apache Software Foundation (ASF). It empowers you to build a robust question-and-answer (Q&A) platform to thrive your community at ease. Apache Answer is capable for but not limited to: Community Forum: Open discussions and knowledge sharing within your online community. Help Center: Provide a central location for users to find answers to frequently asked questions (FAQs) and troubleshoot issues related to your product or service. Knowledge Base: Create a searchable repository of valuable information and best practices for your team or organization. Discover more by yourself.
    Downloads: 0 This Week
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  • 16
    BoolHub

    BoolHub

    A fully functional personal information management software.

    [Native application]: Developed with QT, pure native application, faster response; Cloud synchronization: Data is recorded in the cloud, and the data is no longer lost. Data synchronization is unlimited, everything is in your control; [Rich note types]: Support rich text, Markdown, code, tables, drawings, flowcharts and other note formats; [Manage your customers]: A customer relationship management system that supports team collaboration to grasp every lead and every customer; [Manage daily affairs]: Manage your affairs in an orderly manner through the feature-rich to-do list view; [Free without function limit]: There is no limit to the software functions, free to use, we are just to make a friend; [Different moods and different themes]: Notes and to-do lists, support a variety of exquisite themes, do whatever you want, change it if you want; [More application scenarios]: Memo view, timeline view, passwordbook view, statistics view to meet your different needs.
    Downloads: 0 This Week
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  • 17
    LedgerSMB

    LedgerSMB

    Building High Quality ERP and Accounting Software for SMB & SME

    LedgerSMB is an ERP, featuring accounting (including AR, AP, and GL), quotation and order management, and more, for businesses with small to medium transaction volumes. The system has been shown to easily handle thousands of AR/AP transactions per week. Data integrity, security, quality, and responsiveness are key values for our community, both among the developers and, we hope, the users. Additionally we aim to make LedgerSMB into a platform to integrate with, or even serve as a framework for building, other applications. We highly value community contributions and aim to stimulate growth through a broad community by actively providing support and documentation.
    Downloads: 0 This Week
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  • 18
    The Sino Project is an Open Source initiative that utilized code developed by the Chinese government. Sino Linux Middleware v3.0 and Mobile Business Application Suites are built and tested in conjunction with the OSDL in a high volume, enterprise read
    Downloads: 0 This Week
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  • 19
    This ToDoList follows the values, principles, and practices of Extreme Programming. Improve managing ability of customer.
    Downloads: 0 This Week
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  • 20
    ebizframe ERP

    ebizframe ERP

    Transform Your Business with ebizframe ERP

    ebizframe ERP is a full-feature ERP which has been implemented for 1,100+ clients in 25 countries across 20+ industry verticals. It is a Future-Ready modularERP with a very short implementation cycle. It can be quickly configured for almost any industry vertical. ebizframe is a Device-Agnostic, Multi-Everything ERP solution which offers the flexibility to be deployed securely On-Cloud or On-Premise. ebizframe ERP is an Easy-to-Use ERP System which features User-Defined Dashboards, Flexible Workflows and a great User Interface (UI).
    Downloads: 0 This Week
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  • 21
    OmniEdge

    OmniEdge

    Bringing intranet on the internet with Zero-Config Mesh VPNS.

    OmniEdge is an Open source p2p layer 2 , zero-config mesh VPN infrastructure, a traditional VPN, AWS VPC, Ngrok, DDNS alternative. No central server, easy to scale with less maintenance. What happens in intranet, stays in in intranet.
    Downloads: 53 This Week
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