Authentication and roles
Sign-in, invitations, password resets and permission-aware screens.
Web applications
Web applications for operations, customers and teams
A website explains. A web application does work: creating records, assigning tasks, showing status, taking payments, generating reports. ZEH Technologies builds those products as maintainable PHP and JavaScript systems with clear permission models.
Typical applications include client portals, internal tools, booking or request systems, content operations, partner dashboards and lightweight CRMs. We avoid rebuilding a full ERP when an integration will do.
Good web applications feel calm. The user always knows where they are, what they can do and what happens next. Errors are readable. Forms validate on the server. Data is not trapped in a spreadsheet that only one person understands.
Dashboards
Operational overviews that match real KPIs, not vanity charts.
Workflows
Statuses, assignments and notifications for multi-step work.
File and record handling
Uploads, search, filters and audit-friendly history when needed.
API backends
REST endpoints for mobile apps or third-party tools.
Admin tooling
Staff interfaces that do not require a developer for routine changes.
Application vs website
If most visitors are anonymous and the goal is marketing, start with custom web development. If most users are signed in and the goal is throughput, you are in application territory.
Many companies need both: a public site and an application behind it. We keep those codebases coherent so design, auth and data models do not drift.
Architecture choices we actually support
We deliver with PHP, SQL databases, REST APIs and JavaScript. That is the published stack for a reason: it is deployable, understandable and durable. For AI features inside an application, see AI development and LLM integration.
Related services
Related solutions
Related work
FAQ
Questions companies usually ask.
Can you replace our spreadsheets?
Often yes, when the process is stable enough to model. We start with the workflow, not the UI chrome.
Will it work on mobile browsers?
Yes. We design responsive application layouts and touch-friendly controls.
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