
ZUGFeRD Pro
An online e-invoicing service for Germany: creating and validating invoices in ZUGFeRD and XRechnung formats.
- PDF invoice with embedded XML under EN 16931
- validation of incoming invoices
- subscription paid by card
From idea to launch: a website, an online shop, a client portal, data collection, a Telegram bot or an integration. Honest estimates, work in stages and support after launch.
From a simple website to a service with accounts, payments and data exchange. Pick what you need — the request form opens with it already selected.
A business card site, landing page or corporate website: design, responsive layout, an admin panel for texts, basic SEO.
OrderCatalogue, cart, card payments via WayForPay, Nova Poshta delivery, product and order exports.
OrderAccounting, client portals, subscriptions and invoices, roles and permissions — software that runs in the browser.
OrderParsers of open sources, exchange with 1C, CRMs and marketplaces, APIs, exports to Excel and CSV.
OrderBots for bookings, notifications and requests, mailings, automatic reports — so the routine runs itself.
OrderTaking over an existing PHP or Laravel site: bug fixes, PHP upgrades, moving to another hosting.
OrderRandomstar does not only build to order — it runs its own online services with real customers and payments. The same approach goes into your projects.

An online e-invoicing service for Germany: creating and validating invoices in ZUGFeRD and XRechnung formats.

Repair tracking software for service centres and workshops: receipts, statuses, spare parts stock, reports.

Data from open sources in a convenient form — by subscription.
A clear process with no surprises: you always know what is being done, what it costs and when it will be ready.
Tell about the task in the form or by email. The reply comes within a business day, with clarifying questions.
A description of what will be built, a split into stages, the price and timing of each.
Prepayment for a stage — work — demo. You see the progress and accept every stage.
Deployment to your hosting, handover of access and code. Warranty fixes — 30 days.
Randomstar’s own services take payments, send emails and process data every day. Hence the rule: code has to be reliable not at the demo, but after a year in production.
Send a request — the reply comes within a business day with a suggestion on how to do it.