1nvoic3 vs Invoice Ninja: Which Invoicing Tool Should You Use?
Invoice Ninja is one of the most popular open-source invoicing platforms available, offering a self-hostable solution with a generous free tier. 1nvoic3 is a streamlined invoice and quote generator focused on instant PDF creation without any signup. Both are popular choices among cost-conscious UK freelancers — but they're built for very different users.
Try 1nvoic3 FreeFeature Comparison
| Feature | 1nvoic3 | Invoice Ninja |
|---|---|---|
| Free plan | ✅ Free | ✅ Free (up to 20 clients) |
| Open source | ❌ | ✅ Fully open source |
| Self-hosting option | ❌ | ✅ |
| Signup required | ❌ No signup | ✅ Account required |
| Instant PDF generation | ✅ | ✅ |
| Quote/estimate generator | ✅ | ✅ |
| Industry templates | ✅ 30+ | ❌ General templates |
| Currency support | ✅ 50+ currencies | ✅ Multi-currency |
| VAT / tax calculation | ✅ Auto | ✅ Configurable tax rates |
| Dark mode | ✅ | ✅ |
| Recurring invoices | ❌ | ✅ |
| Online payment gateways | ❌ | ✅ (Stripe, PayPal, etc.) |
| Expense tracking | ❌ | ✅ |
| Time tracking | ❌ | ✅ |
| Client portal | ❌ | ✅ |
| API access | ❌ | ✅ |
| Kanban boards | ❌ | ✅ |
| Custom branding/logo | ✅ (Pro) | ✅ (paid plans) |
| Multiple PDF designs | ✅ | ✅ |
| Bank integrations | ❌ | ✅ (paid plans) |
Let's compare them honestly.
Pricing Comparison
1nvoic3 is free for core invoicing and quote generation. The Pro plan adds custom branding, premium templates, watermark removal, and invoice history for a small monthly fee.
Invoice Ninja offers a free hosted plan for up to 20 clients — reasonable for new freelancers. The Ninja Pro plan costs $10/month (approximately £8/month) and removes the client limit, adds custom branding, and unlocks premium features. The Enterprise plan at $14/month adds further features. Alternatively, you can self-host Invoice Ninja for free with no client limits — but that requires a server, technical know-how, and ongoing maintenance.
For UK freelancers who just need to create invoices, 1nvoic3's free tier has no client limits and no account requirements. Invoice Ninja's free tier is more restrictive (20 clients) but offers far more functionality within that limit.
Who Is Invoice Ninja Best For?
Invoice Ninja is ideal for technically comfortable UK freelancers and small businesses who want a full-featured invoicing and billing platform. If you're a developer, IT consultant, or tech-savvy business owner, the self-hosting option gives you complete control over your data — particularly appealing given GDPR requirements. The recurring invoicing, time tracking, and payment gateway integrations make it a genuine alternative to paid tools like FreshBooks or Xero.
Who Is 1nvoic3 Best For?
1nvoic3 appeals to UK freelancers and sole traders who want to generate invoices without managing another platform. There's no server to maintain, no account to create, and no client limits on the free plan. The 30+ industry-specific templates — covering trades like plumbing, graphic design, consulting, photography, and construction — mean your invoice matches your profession. For freelancers who handle their own accounting separately and just need a reliable invoice generator, 1nvoic3 removes every barrier.
1nvoic3 Pros
- No signup, no account, no client limits on the free plan
- 30+ industry-specific templates — a genuine differentiator
- 50+ currencies with automatic VAT calculation
- Quote generator included at no cost
- Multiple PDF designs — invoices look polished
- Dark mode for comfortable use
- Works instantly in any browser
1nvoic3 Cons
- No recurring invoices or automated billing
- No payment gateway integration
- No client management or portal
- No time tracking or expense features
- Not open source
- No API for custom integrations
Invoice Ninja Pros
- Fully open source — inspect, modify, and self-host the code
- Comprehensive feature set rivalling paid invoicing tools
- Recurring invoices, time tracking, and expense management
- Payment gateway integrations (Stripe, PayPal, GoCardless)
- Client portal for a professional payment experience
- API access for custom workflows and integrations
- Active development community
- Dark mode available
Invoice Ninja Cons
- Free hosted plan limited to 20 clients
- Self-hosting requires technical skills and ongoing server maintenance
- Setup and configuration takes time — not instant
- The interface, while powerful, has a learning curve
- UK VAT configuration requires manual setup of tax rates
- Can feel over-engineered for simple invoicing needs
- Self-hosted instances need security updates and backups
Verdict
Invoice Ninja and 1nvoic3 sit at opposite ends of the invoicing spectrum.
Invoice Ninja is the power tool — open source, feature-rich, self-hostable, and capable of replacing expensive invoicing software entirely. If you want a full billing platform with recurring invoices, payment processing, time tracking, and total control over your data, Invoice Ninja is genuinely impressive for a free (self-hosted) tool.
1nvoic3 is the sharp, focused alternative — no accounts, no setup, no maintenance. For UK freelancers who invoice project-by-project and don't need recurring billing or payment integrations, it's faster and simpler. The industry-specific templates are a real advantage if your trade matters to how your invoices look.
Choose Invoice Ninja if you want a platform. Choose 1nvoic3 if you want a tool.
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