Open Source Billing & Invoicing Software

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14 apps

Odoo   

335
Full Suite of Integrated Business Apps
Open Source
-Odoo Community edition is available for free. -Odoo Enterprise edition costs $20/user/month (annual billing) or $25/u… Read more about Odooser/month (monthly billing), and apps can be added individually to fulfill your custom needs.
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Full Suite of Integrated Business Apps
Open Source
-Odoo Community edition is available for free. -Odoo Enterprise edition costs $20/user/month (annual billing) or $25/u… Read more about Odooser/month (monthly billing), and apps can be added individually to fulfill your custom needs.
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KashFlow  

66
Accounting and Payroll software for small businesses
Open Source
KashFlow Bookkeeping: Starter: £8/month + VAT Business: £15/month + VAT Business + Payroll: £21/month + VAT KashFlo… Read more about KashFloww Payroll: From £6.50 per month
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Accounting and Payroll software for small businesses
Open Source
KashFlow Bookkeeping: Starter: £8/month + VAT Business: £15/month + VAT Business + Payroll: £21/month + VAT KashFlo… Read more about KashFloww Payroll: From £6.50 per month
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Livetecs  

26
Timesheet & Expense with Billing
Open Source
On-Demand: Pricing starts from $3 Per User / Month On-Demand (Unlimited Users): US$ 200 / Month On-Premises: On-Pr… Read more about Livetecsemises Pricing starts from $30 Per User / One-Time payment. On-Premises Unlimited Users: US$ 1500 On-Premises With Source Code starts from $1000 / One Time Payment. TimeLive is available in both On-Demand (Cloud based) & On-Premises. The pricing for On-Demand version is monthly subscription based while the pricing for On-Premises version is One-Time payment.
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Timesheet & Expense with Billing
Open Source
On-Demand: Pricing starts from $3 Per User / Month On-Demand (Unlimited Users): US$ 200 / Month On-Premises: On-Pr… Read more about Livetecsemises Pricing starts from $30 Per User / One-Time payment. On-Premises Unlimited Users: US$ 1500 On-Premises With Source Code starts from $1000 / One Time Payment. TimeLive is available in both On-Demand (Cloud based) & On-Premises. The pricing for On-Demand version is monthly subscription based while the pricing for On-Premises version is One-Time payment.
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Kill Bill  

17
Open Source Subscription Billing & Payment Platform
Open Source
The solution is open-source and is available at no cost to all users. Read more about Kill Bill
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Open Source Subscription Billing & Payment Platform
Open Source
The solution is open-source and is available at no cost to all users. Read more about Kill Bill
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Invoice Ninja  

92
Open-source invoice, expense & task management platform
Open Source
Forever Free Ninja Pro: $8/month Enterprise: $12/month - $36/month. Read more about Invoice Ninja
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Open-source invoice, expense & task management platform
Open Source
Forever Free Ninja Pro: $8/month Enterprise: $12/month - $36/month. Read more about Invoice Ninja
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Sage | Accounting  

154
Sage One Canada - Small business accounting software
Open Source
Pricing: Free Trial, Monthly Subscription Starting At $9/Month! Read more about Sage | Accounting
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Sage One Canada - Small business accounting software
Open Source
Pricing: Free Trial, Monthly Subscription Starting At $9/Month! Read more about Sage | Accounting
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Dolibarr  

80
Solutions for On-line businesses
Open Source
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Sellsy Invoicing  

29
Invoicing and estimate software
Open Source
Only pay for what you need Our pricing is based on the options you choose: don't pay for useless stuff. Main subscrip… Read more about Sellsy Invoicingtion The only thing you need to get started from $30.90 6 months (including 1 month free)$154.50 12 months (including 2 months free)$309.00 Additional user: $7.50/month CRM pipelines add-on: $7.50/month per user using the add-on Helpdesk: $15/month Hours billing: $7.50/month per user using the add-on Purchases management: $15/month Inventory management: $20/month
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Invoicing and estimate software
Open Source
Only pay for what you need Our pricing is based on the options you choose: don't pay for useless stuff. Main subscrip… Read more about Sellsy Invoicingtion The only thing you need to get started from $30.90 6 months (including 1 month free)$154.50 12 months (including 2 months free)$309.00 Additional user: $7.50/month CRM pipelines add-on: $7.50/month per user using the add-on Helpdesk: $15/month Hours billing: $7.50/month per user using the add-on Purchases management: $15/month Inventory management: $20/month
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Debtor Daddy  

7
Turn your cashflow chaos into calm
Open Source
Starting from $49/month (AUD, NZD, USD); or from £25/month (UK) Read more about Debtor Daddy
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Turn your cashflow chaos into calm
Open Source
Starting from $49/month (AUD, NZD, USD); or from £25/month (UK) Read more about Debtor Daddy
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Moon Invoice  

9
Free Invoice Generator For Professional Invoice Estimates
Open Source
Pricing is available on monthly as well as annual subscriptions. Monthly subscriptions start at $4.99 per month for a s… Read more about Moon Invoiceingle company and $9.99 per month for unlimited companies. Yearly subscriptions start at $4.17 per month for a single company and $8.33 per month for unlimited companies. 2 yearly and 3 yearly plans are also available.
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Free Invoice Generator For Professional Invoice Estimates
Open Source
Pricing is available on monthly as well as annual subscriptions. Monthly subscriptions start at $4.99 per month for a s… Read more about Moon Invoiceingle company and $9.99 per month for unlimited companies. Yearly subscriptions start at $4.17 per month for a single company and $8.33 per month for unlimited companies. 2 yearly and 3 yearly plans are also available.
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Timesheet.com  

2
Timesheet Tracking Solutions for the Project Workforce
Open Source
Prices range from $6.00 to $16.00 per user, per month. Read more about Timesheet.com
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Timesheet Tracking Solutions for the Project Workforce
Open Source
Prices range from $6.00 to $16.00 per user, per month. Read more about Timesheet.com
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O2B  

1
Order to Billing
Open Source
Please contact us for pricing. Read more about O2B
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Order to Billing
Open Source
Please contact us for pricing. Read more about O2B
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SnapBill  

0
Automated Billing System
Open Source
SnapBill has four main packages available: Free: Manage less than 5 clients and send up to 15 invoices per month. S… Read more about SnapBilltartup: Billing automation of up to 50 clients. Includes support for many popular payment gateways. Premium: Billing automation of up to 500 clients. Includes support for many popular payment gateways. Enterprise: This package is the most fully featured and has no limits. Only a per client fee per month is applicable. Custom modules are available.
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Automated Billing System
Open Source
SnapBill has four main packages available: Free: Manage less than 5 clients and send up to 15 invoices per month. S… Read more about SnapBilltartup: Billing automation of up to 50 clients. Includes support for many popular payment gateways. Premium: Billing automation of up to 500 clients. Includes support for many popular payment gateways. Enterprise: This package is the most fully featured and has no limits. Only a per client fee per month is applicable. Custom modules are available.
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myGestion  

0
Online enterprise software solution
Open Source
ERP: 39€/mth(mes) CRM: 29€/mth(mes) ACCOUNTING (Contabilidad): 29€/mth(mes) E-COMMERCE (Tienda On Line): 29€/mth(mes)… Read more about myGestion
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Online enterprise software solution
Open Source
ERP: 39€/mth(mes) CRM: 29€/mth(mes) ACCOUNTING (Contabilidad): 29€/mth(mes) E-COMMERCE (Tienda On Line): 29€/mth(mes)… Read more about myGestion
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