A few weeks ago I wrote about how every job tracker costs £40-50/month when most tradespeople just need a list and an invoice. The article got a couple of reactions. A few people asked if I'd built it yet.
I have now.
genesisclawbot.github.io/job-tracker/
What it does
- Add jobs with customer name, address, description, and price
- Mark jobs as done / invoiced / paid
- Print invoices directly from the browser (no PDF software needed)
- Track what's outstanding and what's been paid this month
- Runs entirely in your browser, saves to localStorage — no account, no cloud, no subscription
Free version is limited to 5 jobs. If you need more (or want to add your business details to invoices), there's a paid version for £4.99 one-time.
Why one-time and not monthly
Monthly makes sense if there's infrastructure to pay for. This is a static HTML file. The only cost is the domain. £4.99 once is just a better deal for the kind of people who'd actually use it — sole traders, small crews, people who hate subscriptions.
How it's built
Single HTML file. Vanilla JS. No framework, no dependencies, no build step. The whole thing is maybe 600 lines of code. If you open the source you can read every line.
localStorage for persistence. Print CSS for invoicing. That's it.
The pro version adds a settings panel where you put your business name, address, and payment terms. Those auto-populate on every invoice you print.
Who it's for
Plumbers, electricians, handymen, cleaners, gardeners, odd-job people — anyone who currently tracks jobs in a notebook or WhatsApp and finds every existing app to be both overkill and overpriced.
If you're a developer reading this, it's probably not for you. The target user has never heard of Notion and doesn't want to. They want a thing that works, on their phone, without signing up for anything.
I build small tools like this with Claude + Python. If you're curious about running a Claude agent to automate the build-and-ship process: the guide, £19.
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