Developer tools & cloud platforms by wontlost

We Build Tools Developers Love

From the Aster programming language to the top-rated VaadinCKEditor, we create open-source libraries, cloud platforms, and developer tools that solve real problems.

Explore Products Try Aster Cloud
Maven Central
Vaadin Directory
npm Registry
4.92
Vaadin Directory Rating
70+
CKEditor Plugins Supported
10+
Languages Supported
5
Products in Production

Our Products

Open-source tools and commercial platforms built by wontlost, used by developers and enterprises worldwide.

AG-UI for Vaadin

AI chat component with an open-source core and Pro persistence

AG-UI protocol chat for Vaadin Flow: structured agent events streamed straight to the browser, tool calls, thinking blocks and shared state, no @Push. Apache 2.0 on Maven Central. Pro adds conversations, audit trail and state panel; Enterprise adds identity, approvals, metering, governance, observability and a console.

Java 21+ Vaadin 25+ Vaadin Directory Apache 2.0 + Pro

Aster Lang

Human-readable policy language

A type-safe programming language with controlled natural language syntax. Write executable business policies in plain English, Chinese, or German. Powered by a TypeScript compiler and GraalVM Truffle runtime.

TypeScript GraalVM LSP Multi-Language

VaadinCKEditor

CKEditor 5 for Vaadin Flow

The top-rated CKEditor 5 integration for Vaadin. 70+ plugins, 4 editor types, premium features support, dark mode, i18n, and a builder-pattern Java API. Published on Maven Central.

Java 21+ Vaadin 25+ CKEditor 5 4.92/5 Rating

CKEditor Builder

Visual CKEditor configuration tool

An interactive 7-step wizard for configuring CKEditor 5 instances. Drag-and-drop toolbar builder, live preview, and multi-format code export in Java, TypeScript, or JSON.

Spring Boot Vaadin Live Preview Code Export

MotionVaadin

Server-driven motion for Vaadin Flow

Restrained, declarative animation for Vaadin Flow, powered by anime.js v4. Lifecycle and staggered entrances, FLIP list reordering, pointer dragging with axis locking and grid snapping, scroll-triggered reveals, SVG stroke drawing and path morphing, plus count-up and skeleton loading effects.

Java 21+ Vaadin 25+ anime.js v4 Early Access

ZXingVaadin

QR and barcode scanning for Vaadin

Camera-based QR code and barcode scanning for Vaadin Flow, wrapping zxing-js. Reads multi-format 1D and 2D barcodes, generates QR codes, supports multiple video sources with device switching, and includes built-in reset handling.

Java 21+ Vaadin 24+ zxing-js QR & Barcode

Aster Cloud

Policy management SaaS platform

Create, test, and deploy business policies with built-in PII protection, GDPR/HIPAA compliance monitoring, and team collaboration. REST API with multi-language SDKs.

Next.js PostgreSQL Stripe Compliance

What We Do

End-to-end technology services designed to accelerate your digital transformation and deliver measurable business impact.

Language Design & Compilers

Custom DSL and programming language development with type-safe compilers, multi-language support, and GraalVM-based high-performance runtimes.

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Vaadin & Java Components

Enterprise-grade Vaadin add-ons and Java UI components published on Maven Central, including rich text editing with CKEditor 5 integration.

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Cloud-Native Infrastructure

Production-grade K3s/Kubernetes clusters with GitOps (ArgoCD), HashiCorp Vault secrets management, and automated CI/CD pipelines.

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Policy & Compliance Engines

SaaS platforms for business policy management with built-in PII detection, GDPR/HIPAA compliance scoring, and team collaboration.

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Full-Stack Development

End-to-end application development with Next.js, React, Spring Boot, and Vaadin. From prototype to production-ready SaaS platforms.

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Open Source & Developer Tools

Published open-source libraries, IDE integrations via LSP, interactive builder tools, and developer-focused documentation.

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Proven Results

See how we helped our clients overcome complex technical challenges and achieve transformative outcomes.

Open Source / Developer Tools

VaadinCKEditor

Vaadin developers lacked a production-ready CKEditor 5 integration. Manual configuration of 70+ plugins, toolbar layouts, and themes required extensive JSON/code editing and deep CKEditor internals knowledge.

4.92/5
Community Rating
70+
Plugins Integrated
5.5.0
Current Version

Our Solution

  • Built a full Vaadin Flow component wrapping CKEditor 5 v48 with Java builder-pattern API
  • Created an interactive 7-step visual CKEditor Builder for zero-code configuration
  • Implemented multi-format code export (Java, TypeScript, JSON) for instant integration
  • Published to Maven Central and Vaadin Directory with 4.92/5 rating across 25 reviews
Discuss your project

Why Choose Us

We combine deep technical expertise with a relentless focus on delivering measurable business outcomes.

Deep Technical Expertise

From compiler design and GraalVM Truffle runtimes to Kubernetes orchestration and SaaS platforms.

Multilingual by Design

Products built with i18n from the ground up — English, Chinese, German, Arabic, and more.

Production-Grade Infrastructure

GitOps-driven K3s clusters with HA PostgreSQL, Vault secrets, Authentik SSO, and automated deployments.

Open Source First

Core libraries published on Maven Central and npm. Community-driven with transparent development.

Developer Experience Focus

Interactive builders, LSP integrations, comprehensive docs, and type-safe APIs that developers love to use.

End-to-End Delivery

From language design and compiler engineering to cloud deployment and ongoing SaaS operations.

Our Tech Stack

We leverage industry-leading technologies to build robust, scalable, and future-proof solutions.

Languages & Runtimes

Java 21+
TypeScript
GraalVM Truffle
Aster Lang

Backend Frameworks

Spring Boot
Quarkus
Vaadin Flow
Next.js

Frontend

React
Lit
Astro
Tailwind CSS

Cloud & Infrastructure

K3s
Cloudflare
ArgoCD
Terraform

DevOps & Platform

Docker
Kubernetes
Vault
Authentik

Data & Messaging

PostgreSQL
Redis
Oracle ATP
Drizzle ORM

What Clients Say

Don't just take our word for it. Here's what our partners have to say about working with us.

"The VaadinCKEditor component is exactly what our enterprise needed. Rich text editing that just works out of the box with Vaadin Flow, and the builder tool made configuration effortless. Truly a 5-star add-on."

VD
Vaadin Developer
Community Review, Vaadin Directory

"Aster Lang lets our compliance team write executable policies in plain English. No more waiting for engineering to translate business rules into code. The PII detection alone saved us weeks of work."

PTL
Policy Team Lead
Early Adopter, Aster Cloud

"The CKEditor Builder took what used to be hours of trial-and-error configuration and turned it into a 5-minute visual workflow. The multi-format export is a game-changer for our team."

FD
Full-Stack Developer
Community Review, CKEditor Builder

How We Work

A proven, transparent process that keeps you informed and in control at every stage.

1

Discovery

We analyze your domain, existing systems, and objectives to identify the right technical approach.

2

Architecture

Design system architecture, define APIs and data models, and select the optimal technology stack.

3

Build

Iterative development with type-safe code, comprehensive testing, and continuous integration.

4

Deploy

GitOps-driven deployment to Kubernetes with automated pipelines, monitoring, and zero-downtime releases.

5

Evolve

Ongoing optimization, feature development, and community engagement for open-source projects.

Let's Build Something Great

Whether you need a custom language, a Vaadin integration, or cloud infrastructure — we'd love to hear from you.

Get in Touch View on GitHub

Open source. Enterprise ready.