The language of the web
We build full-featured web applications using ES2024+ JavaScript, async/await, modules, optional chaining, clean, readable, and maintainable by design.
From React interfaces to Node.js APIs, we leverage JavaScript across the entire stack to deliver cohesive products with a unified team and shared tooling.
We build browser extensions, bookmarklets, and automation scripts that run in any browser environment using native JavaScript APIs.
We profile and optimize existing JavaScript applications, reducing bundle sizes, eliminating render-blocking scripts, and improving time-to-interactive metrics.
JavaScript is the only language that runs natively in every browser. It is also used server-side (Node.js), mobile (React Native), and desktop (Electron), one language, every platform.
ES2024 brings powerful features: optional chaining, nullish coalescing, async generators, and top-level await, making JavaScript expressive, concise, and a pleasure to write.
npm hosts over 2 million packages. Whatever you need to build, there is a library for it, and the JavaScript community maintains it actively.
With Node.js, validation schemas, utility functions, and business logic can be shared between frontend and backend, eliminating duplication and inconsistencies.
We know JavaScript beyond the frameworks, event loop, closures, prototypal inheritance, and module systems. We write code that works correctly, not just code that runs.
Vite, esbuild, Rollup, Webpack, we configure build toolchains for optimal developer experience and production bundle sizes tailored to your project.
We test JavaScript in browsers, Node.js, and edge runtimes to ensure consistent behavior wherever your code runs.
If your JavaScript project would benefit from typing, we can introduce TypeScript incrementally without disrupting your current development workflow.
We assess your current JavaScript stack, identify gaps, and define the architecture and toolchain for your project.
We configure the build system, linting rules, testing framework, and CI pipeline before writing feature code.
We deliver working features in short cycles, with automated tests validating behavior at every step.
We deploy with error tracking, performance monitoring, and alerting in place so issues surface before your users notice them.
In 1 hour, discover exactly how much you're losing and how to recover it.
Get our tech and business tips delivered straight to your inbox.
© PeakLab 2026
