SDK & Extension Development for European Businesses
GDPR and the ePrivacy Directive shape how every browser extension or SDK in the EU handles personal data and consent, and enterprise buyers review permission models closely before approval. Tantrija builds extensions and SDKs engineered for that landscape — GDPR-compliant data handling, ePrivacy-aware consent flows, and documentation built for EU enterprise procurement review.
Our SDK & Extension Development Services for the European Market
We build extensions and SDKs with GDPR-compliant data handling, ePrivacy-aware consent flows, and clean permission models designed to pass EU enterprise procurement review.
Chrome Extension Development
Build custom Chrome extensions with Manifest V3 compliance, from productivity tools to browser-based integrations, published and maintained on the Chrome Web Store.
Firefox Extension Development
Build cross-browser-compatible Firefox extensions using WebExtensions APIs, published and maintained on Mozilla Add-ons.
Safari Extension Development
Build Safari Web Extensions for macOS and iOS, packaged and distributed through the App Store per Apple's extension requirements.
Edge Extension Development
Build Microsoft Edge extensions compatible with the Chromium extension ecosystem, published on the Microsoft Edge Add-ons store.
Custom SDK Development
Build custom SDKs that let third-party developers integrate with your platform cleanly, with well-documented APIs and multi-language support.
Plugin Development
Build plugins for CMS platforms, IDEs, or SaaS ecosystems, extending core product functionality without touching the host application's codebase.
Third-Party API Integration
Integrate third-party APIs and services into your product, from payment gateways to analytics platforms, with robust error handling and rate-limit management.
SDK Documentation
Build comprehensive, developer-friendly SDK documentation with code samples, quickstart guides, and API references that reduce integration support burden.
Maintenance & Performance Optimization
Provide ongoing maintenance, version updates, and performance optimization to keep your SDK or extension compatible as host platforms evolve.
GDPR & ePrivacy-Aware Development
We design data handling with GDPR requirements in mind and build ePrivacy-aware consent flows for extensions and SDKs that collect or process user data.
Architecture Overview
The real technology layers behind a SDK & Extension Development — Europe engagement.
Core
JavaScript
The SDK or extension's core logic, built for the target runtime.
Distribution
npm
Versioned packaging for developer adoption.
Supporting Services
Node.js
Any backend API the SDK/extension talks to.
Documentation
Next.js
Developer-facing docs sites, where the engagement includes one.
Benefits
Clean, Well-Documented APIs
Built for other developers to use
We design SDKs and extension APIs with the documentation and consistency that make third-party integration painless.
Explore More Services In This Category
Every other real, in-production service we offer alongside this one.
/ Why Choose Us
Why European Businesses Choose Tantrija for SDK & Extension Development
GDPR and the ePrivacy Directive set a high bar for how extensions and SDKs handle data and consent in the EU. We build to that bar.
GDPR-Compliant Data Architecture
We design data collection, storage, and consent flows with GDPR requirements in mind from the architecture level up.
ePrivacy-Aware Consent Flows
We build consent and cookie/tracking disclosure flows with the ePrivacy Directive's requirements in mind.
Enterprise Procurement-Ready
We build with clean, least-privilege permission models and documentation designed for EU enterprise procurement review.
/ Our Process
Our SDK & Extension Development Process
Requirements & Platform Discovery
We define your SDK or extension's core functionality and the platforms, browsers, or hosts it needs to support.
API & Architecture Design
We design a clean, well-documented API surface and architecture that's easy for other developers to integrate with.
Core Development
We build the SDK or extension core, following each platform's development and permission-model guidelines.
Documentation & Sample Code
We write developer-friendly documentation, quickstart guides, and sample code to reduce integration friction.
Cross-Platform Testing
We test across real browser versions and host environments to catch compatibility issues before submission.
Store/Marketplace Submission
We manage the submission and review process for Chrome Web Store, Mozilla Add-ons, App Store, and other relevant marketplaces.
Ongoing Maintenance & Updates
We provide ongoing maintenance, version updates, and performance optimization as host platforms evolve.
/ FAQs
Frequently Asked Questions — SDK & Extension Development in Europe
Who is the leading SDK and extension development company in Europe?
Tantrija is a leading SDK and extension development company serving Europe, building GDPR-compliant, ePrivacy-aware extensions and custom SDKs for European businesses.
Does Tantrija build GDPR-compliant extensions and SDKs?
Yes. We design data collection, storage, and consent flows with GDPR requirements in mind, though final compliance should involve legal counsel.
Does Tantrija build ePrivacy Directive-aware consent flows?
Yes. We build consent and tracking disclosure flows with ePrivacy Directive requirements in mind.
Which browsers does Tantrija build extensions for?
Chrome, Firefox, Safari, and Edge, each built to that platform's specific submission and permission requirements.
Can Tantrija build a custom SDK for our platform?
Yes. We build custom SDKs with clean, well-documented APIs and multi-language support.
Does Tantrija write SDK documentation?
Yes. We write developer-friendly documentation, quickstart guides, and sample code.
Can Tantrija integrate third-party APIs into our product?
Yes. We integrate third-party APIs with robust error handling and rate-limit management.
Does Tantrija handle Chrome Web Store submission?
Yes. We manage the technical requirements and submission process for major browser marketplaces.
Does Tantrija provide ongoing maintenance for extensions and SDKs?
Yes. We provide ongoing maintenance and version updates as host platforms evolve.
How long does SDK or extension development typically take?
Timelines depend on scope, but most extensions and SDKs can be built and submitted within a few weeks.
How can I get an SDK or extension development quote for a Europe-based project?
Contact us for a free consultation — we'll scope your project and provide a detailed proposal and timeline.
SDKs & Extensions Built for Europe's GDPR & ePrivacy Landscape