Appsmith Development & Integration
Custom extensions, API integrations, and seamless embedding into your system landscape.
Standard software often covers 90% – we close the last gap. We develop Widgets & Modules, connect Appsmith with your tools, and automate workflows.
Our Development Services
From API integration to complete custom solutions – we cover the entire spectrum.
API & Interface Integration
We make your systems talk to each other. Whether REST, GraphQL, or webhooks – we connect software with your CRM, ERP, or identity provider.
- Bidirectional data synchronization
- Third-party system connections
- Custom webhooks & event handlers
- Legacy system integrations
Custom Middleware & Logic
Often data formats from System A don't match System B. We develop middleware that sits in between, transforms data, and controls processes.
- Transformation layer (ETL)
- Data stream validation
- Caching layer for performance
- Microservices architecture
Embeddings & Custom Apps
Want to use software features in your own intranet or customer portal? We embed software headlessly and build custom UIs around it.
- White-label integration
- Custom dashboards (React/Vue)
- UI extension via plugins
- Mobile app customizations
Automation & Bots
Save manual work through intelligent automation. We develop bots and scripts that handle tasks automatically.
- ChatOps & slash commands
- Automated reporting
- Workflow orchestration
- Trigger-based actions
Rapid Internal Tool Development
Appsmith is the fastest way to build internal tools. The combination of visual UI creation and JavaScript logic allows us to deliver in days what otherwise takes weeks.
Datasource Integration
Appsmith lives from data. We write complex SQL queries, connect GraphQL endpoints, or bind S3 buckets directly to securely map CRUD operations.
JavaScript Logic & Workflows
Within the app, we write pure JavaScript logic. Complex validations, data transformations (Lodash/Moment.js), and conditional UI logic run directly in the browser.
Custom Widgets (React)
When standard UI components aren't enough, we develop custom widgets as iframe or native React components that seamlessly communicate with the Appsmith store.
Concrete Use Cases
How we implement Appsmith development in practice.
Admin Panel for Microservices
Your microservice architecture has no user interface. Support staff must look into the database to resolve tickets.
A central Appsmith dashboard bundles read and write access to all services. Secure behind SSO (SAML/OIDC) with granular RBAC permissions.
Customer Support Cockpit
Support agents must jump between CRM, shipping system, and payment provider.
An Appsmith app pulls data from Salesforce, DHL, and Stripe into one view. Actions like 'Refund' or 'Resend' are triggered directly via API call.
Data Validation Interface
Excel lists are emailed around, leading to version chaos and inconsistent data.
A web form with strict JS validation and direct database connection replaces Excel. Bulk uploads are parsed and cleaned server-side.
Development with Foresight
Update-safe, scalable, and secure – why you should trust us with your development.
Update-safe (No Core Hacking)
We don't modify the open-source software's source code. Instead, we use official APIs and plugin architectures. Your installation remains updatable and maintainable.
Full-Stack Expertise
We understand not just the code, but the infrastructure beneath it. Our developers know how queries affect database performance and how to build scalable APIs.
Modern Tech Stack
We use modern, type-safe technologies: React, TypeScript, Node.js, Python, Go. Plus PostgreSQL, Redis, and Docker/Kubernetes for infrastructure.
Security by Design
Every line of code is written with security in mind. Input sanitization, secure authentication (OAuth2/OIDC), and compliance with data protection regulations are standard.
Our Tech Stack
How We Work
From requirements to go-live – transparent and structured.
Analysis
We review API documentation, analyze your requirements, and identify optimal integration points.
Architecture
We design the solution: middleware, plugin, or script. Data flows, interfaces, and security concept are defined.
Development
Agile implementation with code reviews, automated tests, and continuous coordination. You see progress in real-time.
Deployment
Integration into your CI/CD pipeline or hosting on our infrastructure. Documentation and training included.
Planning a custom extension?
Let's get technical. We'll assess feasibility and effort.
More Services
Discover all Appsmith services from WZ-IT.
Industry-leading companies rely on us
What do our customers say?
Let's Talk About Your Idea
Whether a specific IT challenge or just an idea – we look forward to the exchange. In a brief conversation, we'll evaluate together if and how your project fits with WZ-IT.
Trusted by leading companies
Timo Wevelsiep & Robin Zins
CEOs of WZ-IT