WEB APPLICATIONS & AUTOMATION FOR SMALL TEAMS

Web applications built around the way your business actually works.

I develop browser-based tools, internal applications and lean digital workflows for small businesses and small teams that need to achieve a lot with limited resources. The aim is to reduce avoidable routine work and build focused tools where standard software does not quite fit.

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Robert Seemann · robnet.dev Direct collaboration with the person who analyses, designs and builds the solution.

WHAT I BUILD

A practical solution first. The technology comes second.

Small businesses rarely need the largest possible platform. They need a solution that removes friction without creating new overhead. The starting point is the process that needs to become clearer, faster or more reliable — then I build the smallest sensible solution for everyday use.

Web applications

Internal browser-based tools, administration interfaces, case workflows, dashboards and focused specialist applications.

When standard software is too broad, too rigid or simply misses the actual process.

Automation & workflows

File processing, document flows, recurring checks, data transformation and connections between existing systems.

When people keep repeating the same steps because the systems around them do not.

E-commerce tools

Practical tooling around product data, marketplaces, orders, fulfilment, invoices, payments and internal e-commerce operations.

Built from real operational requirements rather than generic feature lists.

Web design without WordPress lock-in

Classic company and project websites built lean when a large CMS would only add maintenance, dependencies and unnecessary complexity.

Fast loading, stable operation, full control over code and data, fewer dependencies and a focus on what the site actually needs.

GOOD STARTING POINTS

“We currently do this manually” is often enough to start.

You do not need a finished technical specification. If a small team is spending valuable time on repetitive work, awkward handovers or disconnected data, that is often enough to start.

“We still maintain this in Excel and it is becoming difficult to control.”

“The information exists, but it is spread across several systems or files.”

“Employees repeat the same clicks, checks or exports every day.”

“Our standard software does almost everything — except the part we actually need here.”

“We need a small internal tool, not a multi-year software project.”

“We need a clear web interface for an existing process, database or data source.”

EXAMPLES OF CUSTOM WEB APPLICATIONS

From a concrete task to a tool that works in everyday use.

Internal tools, data workflows, dashboards and focused utilities — built around real processes rather than a standard template. The screens below show interfaces derived from applications that grew out of practical requirements.

01FILE PREPARATION / EXCEL AUTOMATION

Automated Excel preparation

A web application that accepts spreadsheets and related input files, checks the contents automatically, restructures them and prepares the data for downstream use. It turns a manual Excel-heavy routine into a guided digital workflow.

ExcelData preparationValidation rulesHandover

02INTERNAL APPLICATION / PROCUREMENT

Offer & supplier management

A central workspace for supplier offers, reference numbers, dates and internal status information. Colour-coded states expose priorities at a glance, while a log keeps relevant changes traceable.

OffersSuppliersStatus logicAudit log

03INVOICE WORKFLOW / AUTOMATION

Invoice & data workflow

Capture invoices manually or import e-invoices, PDFs and structured data, prepare them for checking and pass the results on in a controlled way. One connected workflow instead of several isolated steps.

PDF / XMLAI extractionValidationCSV / TXT

04DOCUMENT TOOL / E-INVOICING

ZUGFeRD / Factur-X XML extractor

A focused browser tool for one very specific task: extract embedded invoice XML from one or several hybrid PDF invoices and make the structured files directly available.

ZUGFeRDFactur-XPDFXML extraction

05MONITORING / DATA INTAKE

File & intake monitoring

A monitoring view for recurring data deliveries and incoming files. First sighting, latest activity, file details and processing status make it easier to see what has arrived and what has already moved on.

MonitoringFile intakeStatusLogbook

06DATA ANALYSIS / DASHBOARD

IFA price-change dashboard

Large IFA datasets are condensed into key figures, upcoming price changes and conspicuous movements. The dashboard creates an early operational view and provides exports for further processing.

IFA dataDashboardEarly visibilityCSV

Note about the web-application examples

For confidentiality reasons, the examples are shown only as visual representations derived from one company environment. Some of the maritime wording is intentional and helps anonymise real workflows, content and naming. The aim is primarily to illustrate the kinds of web applications and automations that can be built in practice.

Automated Excel Preparation

A focused web application that turns incoming Excel-based input into a clear checking and preparation workflow.

Excel files, PDFs or image-based supporting files often contain usable information, but their structure is inconsistent and not immediately suitable for the next operational step. Small teams can easily lose time reviewing, reworking and clarifying such input manually.

The application accepts defined file formats, detects relevant content automatically, applies rules such as matching, duplicate handling or price-basis interpretation and prepares the resulting data cleanly for downstream ERP use or another follow-up process. The interface guides the user through upload, validation and handover.

A manual Excel-heavy routine becomes a traceable web process. Repetitive preparation steps run faster, more consistently and with less friction in day-to-day work.

ExcelData preparationValidation rulesImportHandoverPHP

Offer & Supplier Management

A browser-based workspace that turns a dense supplier-offer process into one searchable, status-driven operational view.

Offer data, reference numbers, dates and internal decisions have to stay comparable even when several sources and processing states are involved. Without a shared view, information quickly becomes scattered or difficult to prioritise.

The application combines supplier information, offer references, dates, notes and colour-coded statuses in one table-based interface. Search, export and a separate change log support daily use and later traceability.

The current state of an offer is visible without switching between several files or views. Priorities stand out immediately and relevant actions remain documented.

PHPTable UIStatus logicSearchExportAudit log

Invoice & Data Workflow

A connected workflow for invoice capture, structured imports, PDF extraction and controlled export — centred on the actual processing steps.

Invoices can arrive in several forms: structured e-invoices, normal PDFs or manual entries. If each format needs its own separate routine, the process becomes fragmented and unnecessarily repetitive.

The application brings manual capture, e-invoice parsing, AI-assisted PDF extraction and export functions into one workflow. Imported items first enter a checking stage so structured data is not treated as automatically correct.

Different input formats lead into one understandable process. Manual effort is reduced while a human review step remains part of the workflow before data is used further.

PHPPDFXML / e-invoiceAI extractionValidationCSV / TXT export

ZUGFeRD / Factur-X XML Extractor

Extract embedded invoice XML from ZUGFeRD and Factur-X PDFs without manually opening attachments one by one.

The structured XML inside a hybrid e-invoice is useful for machine processing, but retrieving it manually from multiple PDF files is an unnecessarily repetitive desktop task.

A focused web utility accepts one or several compatible PDFs, extracts the embedded invoice XML locally on the server and makes the resulting files available for download.

The task is reduced to three clear steps: choose PDFs, extract XML, download the structured files.

ZUGFeRDFactur-XPDFXML extractionBatch processingPHP

File & Intake Monitoring

A compact monitoring view for recurring inbound files and data deliveries, with timestamps and processing state visible at a glance.

Automated or recurring file intake can become difficult to verify when it is unclear when a file first appeared, whether it was seen again and whether it has already been moved into the next step.

The monitor records first and latest sighting, file name, size, server timestamp and current processing status in a sortable overview.

Incoming data becomes observable instead of invisible background activity. Missing or stalled items are easier to spot and completed files can be distinguished from current intake.

MonitoringFile intakeTimestampingStatus trackingLogbook

IFA Price-Change Dashboard

A data-driven dashboard that makes upcoming IFA price changes visible before they become part of the normal operational data state.

Large pharmaceutical product datasets contain far more records than a person can sensibly inspect row by row. The useful information lies in the changes, especially unusual movements and the effective date.

The application evaluates incoming IFA data, summarises the current dataset, separates increases and decreases, highlights conspicuous changes and provides the relevant records for export.

A large raw dataset becomes an operational early-view: important changes can be identified quickly without manually comparing hundreds of thousands of product records.

IFA dataData comparisonDashboardAnomaly flagsCSV export

HOW I WORK

Direct collaboration instead of agency layers.

For a small business, a long chain of account managers, project managers and developers often adds more overhead than value. You discuss the requirement directly with the person who examines the process and builds the solution.

01 / UNDERSTAND

Start with the process

What happens today? Where does time disappear? Which data already exists? What genuinely has to improve?

02 / BUILD

Develop the useful core

Build the smallest solution that solves the real problem cleanly instead of starting with the largest possible feature list.

03 / REFINE

Improve from real use

Put the tool into practice, observe what matters and refine the parts that prove useful in everyday work.

ROBERT SEEMANN · SYSTEMS TINKERER

THE PERSON BEHIND ROBNET.DEV

Personal by design — professional in execution.

I have been working with web technology since 1997. What began with hand-built websites gradually expanded into databases, e-commerce, automation, structured data and purpose-built web applications.

robnet.dev is intentionally not presented as a large agency. You work directly with me, and I stay close to the practical problem from the first conversation to the finished solution. The label Systems Tinkerer remains because it describes the curiosity behind the work — it is simply no longer the first thing a customer has to decode.

More about me and the route from dial-up to today

LAB / CSS / TERMINAL / EXPERIMENT

For those who like to look a little deeper.

The lab is the technical playground of robnet.dev: small experiments, visual ideas and the retro terminal — deliberately a little more playful than the business side of the site.

CSS / 3D / EXPERIMENT

Six sides. Six typical tasks.

A real 3D cube built entirely with CSS. Each side represents an area in which small teams can gain time, clarity or control through a focused web solution.

Move the pointer over the cube to pause the rotation.

01Web Applications

02Automation

03E-Commerce

04Data Preparation

05APIs & Interfaces

06Lean Websites

EXPERIMENT / FOR THE CURIOUS

terminal.robnet.dev

An interactive retro terminal with small utilities, technical snippets and a little command-line nostalgia. Not required to understand my work — but worth a visit if a blinking cursor still feels inviting.

Open terminal

START WITH THE PROBLEM

Tell me what currently takes too much time, too many clicks or too much manual work.

A rough description is enough for the first contact. Especially in a small team, the interesting question is often simple: which recurring work could be made easier, clearer or more automatic? You do not need to know which technology should be used — that is part of the analysis. I work independently of location.

Send a project enquiry robert@robnet.dev E-mail is the best channel for a first project enquiry and leaves enough room to describe the problem properly.