JavaScript development services
JavaScript runs on every browser and every server we ship to. We use it where it belongs — interactive interfaces, Node services, build tooling — and we keep the codebase readable long after the launch sprint is over.
Where we use JavaScript
JavaScript is part of the stack on these 4 services. Each page covers how we work, what you get and what it costs to start.
JavaScript in practice
JavaScript is the only language every browser runs, which makes it unavoidable rather than chosen. Modern JavaScript is also a genuinely capable language — modules, async/await, destructuring and a standard library that no longer requires a utility dependency for everything.
Our position is straightforward: plain JavaScript for small, self-contained scripts, and TypeScript the moment code will be maintained by more than one person over more than one quarter. Most arguments about JavaScript’s weaknesses are really arguments about codebases that never adopted types or tests.
What we build with JavaScript
Dashboards, configurators, editors and booking flows where the interaction is the product, not decoration on top of a static page.
Node APIs, scheduled jobs and integrations that share types and validation logic with the frontend instead of duplicating them.
Small, dependency-free scripts that add motion and interaction without dragging a framework onto a landing page.
Is JavaScript right for you?
Ask usA good fit when
- Interactive behaviour on marketing sites, without a framework
- Small scripts and build tooling where a type system is overhead
- Anywhere the browser is the runtime — there is no alternative
- Rapid prototypes meant to be thrown away
Probably not when
- Long-lived product code — use TypeScript instead
- Large teams where implicit contracts turn into production bugs
- Codebases where refactoring safety matters more than initial speed
What we run alongside JavaScript
The rest of the setup, and why each piece is there. We keep this list short on purpose — every dependency is something someone has to maintain.
- ESLint
- Catches the mistakes the language permits but nobody intends.
- Prettier
- Ends formatting arguments permanently, which is worth more than it sounds.
- Vite or esbuild
- Bundling fast enough that the build stops shaping how people work.
- Vitest
- Tests that run quickly enough to be run before every push.
Why JavaScript
Let’s talkOne language across the stack
The same people can move between the browser, the API and the build pipeline, which keeps handovers and context-switching cheap.
The largest package ecosystem there is
Almost every integration you need already exists — our job is choosing the few worth the dependency and rejecting the rest.
It runs everywhere
Browsers, servers, edge functions and mobile shells all execute it, so a piece of business logic rarely needs a rewrite to move.
What we get called in to fix
Get a second opinionSilent type errors
undefined flowing through three functions before failing somewhere unrelated. This is the class of bug TypeScript deletes.
Dependency bloat
Four libraries doing what the standard library now does, each carrying its own transitive tree.
Global state on the page
Scripts that communicate through window and break when load order changes.
JavaScript or the alternative
The comparisons we are actually asked to make, answered the way we would answer them on a call.
TypeScript for anything maintained. Plain JavaScript for small scripts where the tooling would cost more than it returns.
Vanilla for marketing pages and widgets — faster and lighter. A framework once the interface holds real state.
Node.js
React
Laravel
Python
Vue
Angular
Django
Go
Java
MongoDB
MySQLGot an idea? Let’s make it real.
Tell us the short version
This could be the first step towards a new and successful collaboration. A one-line idea and a finished spec are both fine — tell us the problem, the deadline you’re working to and what’s in your way.
Keep looking
Frequently asked questions
Both. Marketing sites and widgets often ship as small vanilla scripts; product interfaces usually justify React, Vue or Angular.
On anything long-lived, yes. We treat TypeScript as the default for product code and keep plain JavaScript for small, self-contained scripts.
Yes. We start with a read-through and a short written assessment of the risks before we change anything.
Yes — marketing sites, small widgets and build scripts. It is the right tool when the alternative is configuration overhead for a hundred lines.
Lint rules, tests around the risky paths, and small modules. It works, but it is more discipline than a compiler doing it for you.