We specialize in iOS Safari extension development and Safari browser extension development, designing, developing, and publishing high-quality Safari extensions using modern WebExtension APIs and native Swift frameworks. Whether you’re building productivity tools, secure password managers, or content blockers, our team ensures a seamless launch across Apple platforms.

Tantrija specializes in Safari extension development, focusing on user experience, security, and performance. We leverage both WebExtension APIs and native Swift-based Safari App Extensions for deep integration within the Apple ecosystem.
Build cross-browser-compatible Safari extensions using the WebExtension API. Perfect for Chrome-to-Safari porting or creating universal browser tools with a single codebase using JavaScript, HTML, and CSS. This service highlights our expertise in Safari browser extension development.
We develop high-performance, native iOS Safari extensions using Swift and Xcode. These extensions interact directly with your macOS or iOS app for a deeply integrated user experience.
We craft sleek, user-friendly UIs for Safari extension development, following Apple’s Human Interface Guidelines to maximize user adoption and engagement.
Our team ensures your Safari extensions comply with Apple’s privacy policies and App Store guidelines, managing permission scopes, secure data handling, and sandboxing for smooth approvals.
Already have a Chrome or Firefox extension? We provide Safari browser extension development services to convert and optimize your existing extension for Safari, including logic refactoring, permission alignment, and UI adjustments.
We manage packaging, provisioning profiles, entitlement settings, and full App Store Connect submission for iOS Safari extension development, saving you time and avoiding rejection loops.
Our Safari extensions can include content scripts, REST API calls, or real-time WebSocket updates, securely integrating your extension with your backend systems.
We ensure your iOS Safari extensions work flawlessly across all Apple devices, testing on the latest Safari versions and implementing backward compatibility strategies.
The real technology layers behind a Safari Extension Development engagement.
JavaScript
The SDK or extension's core logic, built for the target runtime.
npm
Versioned packaging for developer adoption.
Node.js
Any backend API the SDK/extension talks to.
Next.js
Developer-facing docs sites, where the engagement includes one.
Native feel. Seamless integration.
Our team specializes in iOS Safari extension development and Safari browser extension development, using Xcode, Swift, and WebExtension APIs to build Safari extensions that integrate perfectly with macOS and iOS while minimizing system impact.
Every other real, in-production service we offer alongside this one.
/ Why Choose Us
We design and ship secure, high-performance Safari extensions for macOS and iOS—combining native Swift and WebExtension expertise with App Store readiness and long-term support.
Our team has deep experience building iOS Safari extensions that are fast, secure, and user-friendly—engineered for both iPhone/iPad and macOS.
We craft native Swift extensions and cross-browser WebExtension solutions, with seamless integrations to your apps, backend services, and third-party APIs.
From discovery and UX to development, App Store packaging/submission, and ongoing maintenance, we manage the full lifecycle for a smooth launch.
Every build aligns with Apple’s Human Interface Guidelines and App Store policies, ensuring compatibility with the latest Safari on macOS and iOS.
We prioritize user privacy and data protection, adhering to Apple’s strict security guidelines while maintaining performance and usability.
/ Our Process
At Tantrija, our Safari extension developers follow a structured process to deliver high-quality, secure, and App Store–compliant extensions for macOS and iOS.
We clarify your goals, target users, and technical requirements—scoping Safari extension development and iOS Safari extension development aligned to your roadmap.
We create intuitive UIs and interactive prototypes that follow Apple’s Human Interface Guidelines, ensuring a smooth UX for Safari browser extension development.
Using WebExtension APIs or Swift, we build high-performance Safari extensions and integrate with macOS/iOS apps, backend systems, and third-party APIs.
We run rigorous functional, performance, and security tests across macOS and iOS to ensure flawless behavior and compliance with App Store policies.
We handle packaging, provisioning profiles, entitlements, and full App Store submission to enable a smooth, compliant launch of your Safari extensions.
Post-launch, we provide ongoing updates, bug fixes, and enhancements to keep pace with Safari releases and Apple platform updates.
/ FAQs
Safari extension development involves creating custom browser extensions that enhance Safari’s functionality on macOS and iOS—ranging from productivity tools to privacy-focused add-ons.
iOS Safari extension development targets extensions for iPhone and iPad, while Safari browser extension development covers macOS Safari (and often cross-platform WebExtension builds).
Yes. We convert existing Chrome or Firefox extensions into fully compatible Safari extensions using WebExtension APIs or native Swift code, preserving functionality and UX.
All extensions follow Apple’s privacy guidelines, implement secure data handling, and comply with App Store policies to ensure safe, smooth approvals.
Absolutely. We manage packaging, provisioning profiles, entitlements, and the full App Store Connect submission process for both macOS Safari and iOS Safari extensions.
Let’s Build Your Safari Extension
