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.

The best free alternative to Crater is Summit Finance, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Crater and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Crater are Invoice Ninja, Manager, SmoothLedger and Akaunting.
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.

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.




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.



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



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.



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.




Your personal finance manager to check all your accounts, from any bank, in a single place.




Zoho Invoice is an easy invoice software meant for small businesses and freelancers. Accept payments online, automate payment reminders and recurring invoices easily.




Cloud-based accounting software designed for small businesses, featuring invoicing, expense and income tracking, customizable financial dashboards, extensive reporting, automation for recurring tasks and payment reminders, secure user access controls, and integrated templates.




It is a personal budgeting app, not an invoicing app.