Comparison
Invoice Ninja is a powerful, open-source invoicing platform — but using it means either an account on their hosted version or self-hosting and configuring the app yourself. That is more than many freelancers need just to send an invoice.
1nvoic3 is invoicing-first and instant. Create a clean, HMRC-ready invoice in under a minute — free, with no signup, no card and nothing to host. Upgrade to Pro (£9.99/mo) only when you want to drop the watermark and unlock premium templates.
We have kept this fair: Invoice Ninja is a capable, full-featured platform. Where its behaviour depends on your plan or self-host setup, we say so rather than guess. Always check Invoice Ninja's current plans before deciding.
| Feature | 1nvoic3 | Invoice Ninja |
|---|---|---|
| Primary purpose | Invoicing & quotes, first and foremost | Full invoicing & billing platform |
| Create an invoice with no signup | Yes — no signup, no card | Account required (hosted or self-host) |
| Setup needed before you start | None — start instantly in the browser | Sign up, or self-host and configure |
| Self-hosting option | Not needed — fully hosted, nothing to run | Available (open-source, you host it) |
| Free to create & download an invoice | Yes — free forever | Free tier / open-source (limits vary) |
| Built for the UK & HMRC | Yes — UK-first, HMRC-ready | General-purpose, not UK-specific |
| Remove provider watermark / branding | No watermark on Pro (£9.99/mo) | Varies by plan / self-host config |
| AI Fill — build an invoice by chat, voice or photo | Yes, on Pro (£9.99/mo) | Not a core feature |
| Best fit | Freelancers who want a clean invoice with zero setup | Teams wanting a fuller, self-managed billing system |
Invoice Ninja is a trademark of its respective owner. 1nvoic3 is not affiliated with, or endorsed by, Invoice Ninja. Features and plans change over time — check their official site for current details.
We would rather point you to the right tool than oversell. If you want a full, self-managed billing platform, Invoice Ninja is built for it.
For most freelancers, yes. Invoice Ninja is a full invoicing and billing platform — you either create an account on their hosted version or self-host the open-source app and configure it. 1nvoic3 is invoicing-first and instant: open it in the browser and create a professional, HMRC-ready invoice in under a minute, with no signup and nothing to install.
No. 1nvoic3 is fully hosted, so there is nothing to install, run or maintain. Invoice Ninja's open-source route lets you self-host, which gives you control but also means servers, updates and setup. If you just want to send invoices, 1nvoic3 removes all of that.
Yes. You can create and download a professional invoice for free, with no signup. Free invoices include a small 1nvoic3 watermark on the PDF, which the Pro plan (£9.99/mo) removes along with unlocking premium templates.
1nvoic3 is built UK-first, so invoices are HMRC-ready and tuned for UK sole traders and freelancers out of the box. Invoice Ninja is a capable general-purpose tool used worldwide, but it is not UK-specific, so you may need to configure more to match UK expectations.
If you want a fuller, self-managed billing system — recurring billing at scale, deep customisation, multiple users, or full control via self-hosting — Invoice Ninja is built for that. 1nvoic3 is the better fit when your main job is getting a clean invoice out the door quickly with no setup.
Create a professional, HMRC-ready invoice in under 60 seconds. No signup, no card, nothing to host.
Create your free invoice