Bigcapital
58 · CautionDouble-entry accounting with financial reports, inventory and invoicing.
Directory / Accounting & invoicing
Open source Accounting & invoicing
Source-available and unverified licenses
The code for these is public, but the license is not an OSI open source license, or we have not verified it yet. Check the license notes on each project before relying on it.
Akaunting
87 · HealthyAccounting app for small businesses with invoicing, expenses and an app store.
Invoice Ninja
74 · StableInvoicing, quotes, payments and time tracking for freelancers and small businesses.
Directory / Accounting & invoicing / Invoice Ninja
Invoice Ninja
Invoicing, quotes, payments and time tracking for freelancers and small businesses.
Will it still be around?
Health 74/100 · Stable
Activity, bus factor and issue responsiveness. Breakdown
Alternative to
Savings proposal
A 25-user team on FreshBooks Plus pays about $307 a month. Self-hosting Invoice Ninja costs about $264 a month to run plus $1,200 to set up, so it pays for itself in month 28 and saves about $348 over three years.
List price: FreshBooks Plus, billed monthly. Plus is $43 a month including the owner; each extra team member is $11. Source, checked 2026-10-07.
Saved over 3 years
$348
Pays for itself
Month 28
Extra cost in year one
$684
Each month
$307 → $264
Show as a table
| Month | FreshBooks | Self-hosted | Difference |
|---|---|---|---|
| Today | $0 | $1,200 | −$1,200 |
| Month 3 | $921 | $1,992 | −$1,071 |
| Month 6 | $1,842 | $2,784 | −$942 |
| Month 9 | $2,763 | $3,576 | −$813 |
| Month 12 | $3,684 | $4,368 | −$684 |
| Month 18 | $5,526 | $5,952 | −$426 |
| Month 24 | $7,368 | $7,536 | −$168 |
| Month 30 | $9,210 | $9,120 | $90 |
| Month 36 | $11,052 | $10,704 | $348 |
Assumptions you can change
Self-hosting Invoice Ninja usually means an app server, a database and a cache or worker. Hours are for one engineer; the server cost is a typical cloud VPS with backups and grows with the number of people using it.
Not included: paid editions or features of Invoice Ninja (see What's free?), large data migrations, and compliance work. All amounts in US dollars at list price; your negotiated price may differ.
Health score: 74/100
Activity45% weight
100/100
- Last commit 20 days ago (100/100).
- 2203 commits in the past 12 months (100/100).
- 50+ releases in the past 12 months (100/100).
Bus factor30% weight
15/100
- Top contributor wrote 89% of the last 100 commits (past 12 months).
- 7 people authored those commits.
Responsiveness25% weight
98/100
- 96% of all issues are closed (214 open, 4602 closed) (100/100).
- 29 of 30 recent issues got a reply or were closed (97/100).
Score v2. How the health score works.
License
Elastic License 2.0 · Source-available, not open source
You can't offer it to third parties as a hosted or managed service, or bypass its license-key features.
The code is public, but the license restricts how you can use it, usually by banning competing hosted services or capping production use. Not open source.
License text checked 2026-10-07: read it.
What's free?
Enterprise features many open-core projects keep for paid plans.
| Feature | Self-hosted, free? |
|---|---|
| SSO (SAML) | Unknown |
| SSO (OIDC) | Unknown |
| SCIM provisioning | Unknown |
| Audit logs | Unknown |
| Role-based access control | Unknown |
| Multi-tenancy | Unknown |
We haven't verified which of these features are free for this project yet.
GitHub metrics
| Stars | 10k | Forks | 2.7k |
|---|---|---|---|
| Last commit | 20 days ago | Commits, 12 months | 2.2k |
| Releases, 12 months | 50+ | Last release | yesterday |
| Contributors | 110 | Active authors | 7 in last 100 commits |
| Open issues | 214 | Closed issues | 4.6k |
Snapshot from 2026-10-08.