FOSSBilling
FOSSBilling is free, open-source billing and client-management software for hosting and other online service businesses.
What FOSSBilling is
FOSSBilling is free, open-source billing and client-management software for hosting and other online service businesses. It can create invoices automatically, send payment reminders, handle recurring and one-time pricing, support multiple currencies, and apply promo codes. Hosting products can provision accounts through supported control panels including cPanel/WHM, DirectAdmin, HestiaCP, CWP, and Plesk. Domain tools cover registration, renewal, transfers, and WHOIS availability checks through registrar integrations. FOSSBilling also provides a REST API with admin, authenticated-client, and public guest endpoints. The software is intended for self-hosted deployment and requires PHP 8.3, 8.4, or 8.5, plus a MySQL-compatible database. The project describes the software as beta and under active development, with rough edges and limited support. Important limitations include no import of existing control-panel accounts, no client single sign-on to control panels, and manually set domain prices rather than live registrar pricing. Multi-factor authentication is listed as planned, not currently available.
Good
- Free and open source under AGPL 3.0
- Supports recurring and one-time pricing
- Offers multi-currency billing and promo codes
- Can provision accounts through supported hosting panels
- Provides a REST API
Watch out
- Beta software with rough edges and limited support
- Cannot import existing control-panel accounts
- Clients lack single sign-on to control panels
- Multi-factor authentication is not currently available
Who it suits
FOSSBilling suits hosting and online service businesses looking for free, self-hosted billing and client-management software. It is for users prepared to work with its stated server requirements and beta maturity.
Verdict
FOSSBilling offers billing, domain management, and hosting provisioning without a software charge. Its beta status and the listed control-panel and security limitations are important considerations for deployment.
Plans and prices
From FOSSBilling's own pricing page, checked 9 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| FOSSBilling | Free | Core software is free and open source |
| FOSSBilling core | Free | free and open source · self-hosted |
The facts
Each one read from FOSSBilling's own pages, with the date it was checked.
What it does
- Anti-spam
- The antispam module supports reCAPTCHA v2/v3, Cloudflare Turnstile, hCaptcha, Stop Forum Spam, disposable-email blocking, and IP blocking.checked 21 Oct 2026
- API
- FOSSBilling provides a REST API with admin, authenticated-client, and public guest endpoints.checked 9 Oct 2026
- API authentication
- Authenticated API calls use HTTP Basic Authentication with an admin or client username and API key.checked 21 Oct 2026
- Domain limitation
- Domain prices are set manually per TLD; FOSSBilling does not retrieve live registrar pricing.checked 9 Oct 2026
- Domain limits
- Domain pricing is manually set per TLD, live registrar pricing is not pulled automatically, and DNS management is under consideration.checked 21 Oct 2026
- Domain management
- Domain workflows include registration, renewal, transfer, nameserver changes, contact updates, locking, and privacy controls.checked 21 Oct 2026
- Extensibility
- Themes, modules, payment gateways, server managers, and domain registrars can be installed through the extension architecture.checked 21 Oct 2026
- Homepage license statement
- The homepage currently describes the project as AGPL 3.0 licensed, creating a discrepancy with the repository license file.checked 21 Oct 2026
- Hosting limitations
- Existing control-panel accounts cannot be imported, and clients do not have single sign-on to control panels.checked 9 Oct 2026
- Hosting limits
- Hosting documentation says account imports and single sign-on are unavailable, and Plesk has a minor package-sync bug.checked 21 Oct 2026
- Hosting provisioning
- Hosting accounts can be provisioned through cPanel/WHM, Plesk, DirectAdmin, HestiaCP, and CWP.checked 21 Oct 2026
- Hosting requirements
- FOSSBilling requires PHP 8.3, 8.4, or 8.5 and a MySQL-compatible database, and supports Apache, LiteSpeed/OpenLiteSpeed, and NGINX.checked 9 Oct 2026
- Independent integration note
- Netim describes its FOSSBilling module as supporting registration, transfers, renewals, registrar lock, WHOIS privacy, authorization codes, contact updates, and nameserver changes.checked 21 Oct 2026
- Latest release
- Version 0.8.8 was released on 3 October 2026, is 29 MB, and requires PHP 8.3 or newer.checked 21 Oct 2026
- License
- The GitHub license file releases the application under Apache License 2.0 and notes inherited BoxBilling code.checked 21 Oct 2026
- Limit: beta and support
- The same independent review warns that beta status, limited support, and a thin README/documentation path increase production risk.checked 21 Oct 2026
- Limit: enterprise depth
- Another independent ranking says advanced CRM, revenue-recognition, complex order-to-cash, and enterprise BSS capabilities are comparatively limited.checked 21 Oct 2026
- Maturity
- The project describes FOSSBilling as under active development and beta, with rough edges and limited support.checked 9 Oct 2026
- MFA status
- Multi-factor authentication is listed as planned before the 1.0 release rather than available now.checked 21 Oct 2026
- Multi-currency
- The platform supports multiple currencies and automatic exchange-rate synchronization.checked 21 Oct 2026
- Notable news
- The official demo news page dated 18 October 2026 says the project is seeking donations for sustainability.checked 21 Oct 2026
Money
- Automated billing
- It generates invoices, sends payment reminders, and supports recurring and one-time charges.checked 21 Oct 2026
- Billing
- It supports automatic invoices, payment reminders, multiple currencies, recurring and one-time pricing, and promo codes.checked 9 Oct 2026
Where it runs
- Developer wrapper
- A bundled JavaScript API wrapper handles CSRF tokens, response parsing, forms, links, and loading indicators.checked 21 Oct 2026
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