Frontend Development / React, Next.js & React Native
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Developers love React, the open source framework built together with Google, Facebook, Vercel and others. React powers the biggest websites like Airbnb and Twilio, for use cases in e-commerce, travel, news, and marketing.
We work with the world's leading tech platforms:
How we can help
We specialize in building scalable, high-performant, and dynamic web and mobile applications using these cutting-edge technologies. Our team of skilled developers can help you create responsive web interfaces that deliver seamless user experiences across various platforms. Whether you're looking to build a new application or enhance an existing one, we have the expertise to help you leverage the full potential of React, Next.js, and React Native.
Global marketing
We can help you reach new audiences and grow your brand. With React and Next.js, you can create dynamic and interactive web applications that are optimized for search engines and can be easily shared on social media. This can help increase visibility and drive traffic to marketing campaigns, resulting in higher engagement and conversion rates.
E-commerce
Whether you're a small business or a large enterprise, we can help you build an e-commerce platform that meets your specific needs and drives your business forward, while also allowing you to adapt to changing market demands and customer preferences. With React and Next.js, you can create responsive and SEO-friendly web applications that offer a seamless shopping experience across different devices and screen sizes, increasing engagement and conversion rates, resulting in higher sales and revenue.
Mobile applications
With React Native, you can create mobile applications that run on both iOS and Android, saving time and resources compared to developing separate applications for each platform. This can help you reach a wider audience and improve your mobile presence, resulting in increased engagement and customer loyalty. Additionally, React and Next.js can be used to create web applications that are optimized for mobile devices, offering a seamless user experience across different platforms.
Companies we've helped
Flexday
Improving your workspace booking experience with Flexday
In 2.5 months, we helped Flexday build a new version of their React Native app to tackle a new B2B market.
Case Study
Roche
9 months to launch the world's first Javascript React Native app with CE marking as a class II SaMD
In just 9 months, we built a React Native class II software as a medical device (SaMD) to get CE marking.
Case Study
Fast Retailing
Transforming one of the world's largest retail companies into a digital-first organization
How a design system helped transform one of the world's largest retail companies into a digital-first organization.
Case StudyBringing Rangle on board, our company received a fully-loaded engineering/product team overnight. They were friendly, professional and very knowledgeable. The meetings were efficient, the designs were well thought out, and the code was high quality and well-tested. We enjoyed working with them and look forward to collaborating again in the future!
— Amos Chan, Head of Engineering
Featured Posts
What is memoization in React?
React provides several built-in mechanisms for memoization, which can enhance performance by optimizing component rendering. When used correctly, these techniques allow you to selectively memoize components or their parts to prevent unnecessary re-renders.
Frontend Development
Building blazing-fast websites with Next.js and Sanity.io | React Summit 2023
Watch our hands-on workshop at React Summit 2023, where we showed how to build a high-performance headless website using Next.js, Sanity, and the JAMstack architecture.
Escape CMS & Commerce Lock-In
Refactor to React Hooks, Not Classes
JavaScript and its ecosystem are evolving at a rapid pace. As new frameworks, libraries, and features get added JavaScript fatigue can start to set in.
Modernize Your StackModern frontends, faster
Ship a frontend your team can actually maintain
From greenfield builds to React, Next.js, Angular, and Web Components rescues, we bring the engineering depth to ship interfaces that load fast, scale cleanly, and stay easy to extend.
Talk to an engineering leadFrom the blog
Why Your Digital Experience Platform Will Fail Without a Monorepo: The Architecture Decision That Makes or Breaks Enterprise Digital Platforms
Most enterprise DXP failures stem from a single architectural flaw: fragmented codebases. A monorepo enforces integration discipline, reduces costs, and enables AI-driven personalization. Without it, your platform is at risk of collapse. If you're responsible for delivering a scalable customer platform, here's why foregoing a monorepo architecture is a strategic liability.
Escape CMS & Commerce Lock-In
GraphQL Performance Optimization
I recently joined a team in a great position - their GraphQL API PoC was green-lit to become the company's future platform and was nearing feature parity with their existing REST-ish API. As more product teams inside the company started building applications on the GraphQL API, the API team had to dedicate time to support, operations, bug fixes, and new features requested by product teams. Time for performance improvements was squeezed out, so I joined the effort to lower the server's response times and reduce resource usage with my fresh eyes and questions about everything.
Frontend Development
How to modernize your front-end tech stack for AI without disrupting legacy systems: a digital innovator's guide
Enterprises often struggle with rigid, outdated front-end systems that drive up costs and hinder their ability to adapt to market demands. Here's what a modern, AI-ready tech stack looks like and how you can achieve AI readiness incrementally in complex enterprise environments.
Modernize Your Stack