Summit is a modern, self-hostable invoicing and financial management application designed for freelancers, small businesses, and agencies. Create professional invoices, track expenses, generate financial reports, and more.

Onigiri is described as 'Simplify your freelance business with a tailor-made toolkit: invoices, project management, proposals, client portal & more' and is a Invoicing software in the business & commerce category. There are more than 50 alternatives to Onigiri for a variety of platforms, including Web-based, Mac, iPhone, Windows and iPad apps. The best Onigiri alternative is Summit Finance, which is both free and Open Source. Other great apps like Onigiri are Portal.net, Invoice Ninja, SmoothLedger and Manager.
Summit is a modern, self-hostable invoicing and financial management application designed for freelancers, small businesses, and agencies. Create professional invoices, track expenses, generate financial reports, and more.

Make your services stand out by presenting them with finesse. Forget emailing PDFs, late payments, or not hearing back. Use Portal to send branded digital proposals, collect payments worldwide, run subscription-based services, transfer large deliverables, & more.



Free, open-source invoicing and billing platform providing PDF invoice generation, client payment options through 30+ gateways, multiple templates, company logo addition, team roles, time tracking, advanced customization through paid plans, and no installation required.




Free, privacy-focused financial tools for freelancers: Invoice, Payslip, and Quotation generators with no sign-up required.



Manager is free accounting software for Windows, Mac and Linux.
It features an intuitive and innovative user interface with modules such as cashbook, invoicing, receivables, payables, taxes and comprehensive financial reports.
The desktop edition is free while the cloud edition.



From invoicing to expense tracking to accounting, Akaunting has all the tools you need to manage your money online, for free.




InvoicePlane is a self-hosted open source application for managing your quotes, invoices, clients and payments. The application comes with various options, templates and settings to customize your invoicing experience.



Comprehensive cloud accounting for small businesses and freelancers; save time billing clients by sending, tracking, and collecting payments swiftly. Generate professional invoices, manage expenses effortlessly, track project time seamlessly, and prepare for tax with ease.




A comprehensive invoicing platform offering customizable templates, tax compliance, fraud protection, and client portal. Supports software integration, online estimates, GST invoicing, recurring billing, credit management, and global operations with multilingual and multicurrency support.




Tryton is a three-tiers high-level general purpose application platform under the license GPL-3 written in Python and uses PostgreSQL as database engine.
