Open Source Wave Alternatives

Akaunting is accounting software for small businesses and freelancers who would rather keep the books on their own server than rent a seat somewhere else. It installs on ordinary PHP hosting and runs the ledger from there.

The stack is deliberately conventional and easy to staff. Laravel is the foundation framework, Vue.js and Tailwind drive the interface, and a module package underpins the extension system.

Its modular structure is the part that shapes daily use.

• App store: modules extend the core, and developers can publish their own for other users to install.
• Database choice: MariaDB, MySQL, PostgreSQL, and SQLite are all supported.
• RESTful API: the data behind the interface is reachable programmatically.
• Command line install: one artisan command creates the database, the schema, and the first admin account.
• Sample data: an optional seeder fills a fresh installation so the interface can be explored before real books go in.

Requirements are PHP 8.1 or higher, a supported database, and a web server such as Apache, Nginx, or IIS. A development setup is a clone followed by composer and npm installs. Contributions follow PSR coding standards, with the maintainers asking that new code imitate what is already there rather than introducing a second style.

Billing software for a small business usually arrives as a monthly subscription. Crater is the open source alternative, a web and mobile application for tracking expenses and payments and for creating professional invoices and estimates.

The web application is built with Laravel and VueJS, while the Android and iOS apps are built with React Native and live in a separate mobile repository. The project publishes installation steps, a user guide, a developer guide and API documentation for each of them.

Its roadmap records the following as already delivered.

• Installation wizard: walks a new instance through setup, with email configuration and automatic updates handled inside the app.
• Recurring invoices: issue repeat billing on a schedule instead of rebuilding the same document every cycle.
• Customer portal: gives clients a view of their own invoices and estimates.
• Stripe payments: accept payment against an invoice directly.
• Custom fields: extend invoices and estimates with your own data, alongside address customization and default notes.
• White labeling: themes the invoice, email and customer portal to your own brand.

Crater is available as a Docker image, supports multiple companies from a single installation, and is released under the GNU Affero General Public License version 3. Translation runs on Crowdin, with community contributions already covering Arabic, French, Dutch, Serbian, German and Latvian.

Small businesses usually pick between an expensive accounting subscription and a spreadsheet. Frappe Books is the third option, a desktop application that keeps proper double-entry books, records every transaction in two accounts, and does it whether or not there is an internet connection.

It is packaged with Electron as a standalone desktop app for Windows, macOS and Linux, uses Vue.js for a reactive component-based interface, and stores all financial data, transactions and configuration in a local SQLite file on the user's own machine, which is what makes the offline behavior possible.

Daily bookkeeping and period-end reporting both live in the same app.

• Dashboard: an overview of key financial data and performance metrics.
• Point of sale: an integrated till for processing retail sales.
• Entries: invoices, bills, payments and journal entries posted to the general ledger with notes and adjustments.
• Financial reports: general ledger, profit and loss statement, balance sheet and trial balance.
• Offline work: carry on with no connection and sync later.

Installing it means downloading the release for your platform, a Homebrew cask on macOS and Linux, or a Flatpak on Linux. Contributors need Node.js 20.18.1 with npm and yarn; the development build runs Electron with hot reload and exposes the main process on port 5858 for an external debugger, and build targets for other operating systems are selected with a flag.

Bigcapital is an accounting and inventory system for small and medium businesses, built to keep every financial record in one place instead of scattered across spreadsheets and disconnected tools. It automates the bookkeeping work that stands between a transaction and a usable financial statement.

The platform organizes transactions in a double entry system, so the reports it produces rest on balanced books rather than ad hoc totals. A headless accounting mode exposes the same engine through an API, letting another system push its transactions into Bigcapital and read the resulting statements back out.

A few things decide whether it fits how you work.

• Self-hosting: the project is available under the AGPL license and runs on your own servers with Docker and Docker Compose.
• Financial reporting: the double entry ledger feeds the statements and reports the business needs for decisions.
• Inventory: stock sits in the same system as the books, not in a second tool that has to be reconciled.
• API reference: documented endpoints with a published Postman workspace for exploring them before you integrate.
• Cloud option: a hosted service exists for teams that would rather not run infrastructure at all.

Getting started locally is covered by a contributing guide, and a Gitpod button opens a configured workspace in the browser with the dependencies already installed. Documentation, an API reference and a Discord community carry the rest, and the project welcomes contributions of any kind.