Open Source Alternatives to Popular Software

Krayin

MIT

Open source customer relationship management platform with sales tracking, marketing automation, and customizable workflows for businesses of all sizes.

Malak

AGPL-3.0

Open source platform for managing investor updates, KPIs, fundraising pipeline and data rooms. Keep stakeholders informed and organized.

Odoo

Unknown

Integrated suite of business apps covering accounting, CRM, inventory, eCommerce, HR, and project management, available free as Community or paid Enterprise edition.

Relaticle

AGPL-3.0

Transform customer relationships with this intuitive open-source CRM. Features task management, sales pipeline tracking, and customizable data models.

Twenty

AGPL-3.0

Self-hostable CRM built for technical teams who need a fully customizable, extensible platform without vendor lock-in or proprietary tooling.

ERPNext

GPL-3.0

Open-source ERP solution offering modules for accounting, inventory, HR, CRM, and more. Customizable and scalable for businesses of all sizes.

FleetBase

AGPL-3.0

Fleetbase is a comprehensive open source logistics suite offering API, TMS, driver and customer apps for streamlined operations and development.

Shelf

AGPL-3.0

Simplify asset tracking, boost productivity, and gain real-time insights with our user-friendly, open-source inventory solution.

Akaunting

Unknown

Self-hostable accounting software covering invoicing, expense tracking, cash flow, and client portals. Free to use, available in 50+ languages.

Autumn

Apache-2.0

Simplify Stripe integration for AI startups with 3 functions, 0 webhooks. Build pricing plans in 30 minutes with usage tracking, credits, and feature controls.

Bigcapital

AGPL-3.0

Cloud-based accounting software that streamlines bookkeeping, generates intelligent reports, and offers multi-currency support for efficient financial management.

BillaBear

Unknown

BillaBear offers powerful tax management, automated workflows, and comprehensive subscription control for businesses using Stripe

Captable

AGPL-3.0

Comprehensive cap table software for startups to manage equity, track ownership, and facilitate fundraising with real-time insights and compliance tools.

Crater

AGPL-3.0

Crater offers AI-driven invoicing workflows, payments, and working capital tools to enhance your platform with minimal technical effort.

Expensify

MIT

Automate expense reporting, reimbursements, and corporate card management with real-time data sync and powerful integrations.

ezBookkeeping

MIT

A privacy-first personal finance app with two-level accounts, multi-currency support, AI receipt recognition, and broad data import from formats like GnuCash and Firefly III.

Flexprice

AGPL-3.0

A flexible billing platform that handles usage-based metering, credit management, and subscription billing, giving developers full control over pricing models.

Flowglad

Unknown

Build payment systems with real-time billing state and full-stack SDK. Design pricing in natural language, deploy checkout and metering instantly with zero webhooks.

Formance

Unknown

Build custom financial flows and integrate with any provider using Formance's agnostic platform

Frappe Books

AGPL-3.0

A user-friendly desktop accounting software that helps businesses manage invoices, track expenses, and handle bookkeeping with a modern interface.

Gumroad

MIT

A digital marketplace platform where creators can sell digital products, from courses to software, with built-in payment processing and content delivery.

Hyperswitch

Apache-2.0

A unified payment infrastructure that connects multiple payment processors through a single API integration, enabling global payment processing

Invoice Ninja

Unknown

Free invoicing software for freelancers and small businesses. Create professional invoices, track expenses, accept online payments, and manage projects without hidden fees.

Kimai

AGPL-3.0

Open-source time tracking solution for businesses of all sizes. Manage projects, track billable hours, and generate insightful reports.