Webpack development company
Faster builds and smaller bundles for large JavaScript applications. We profile your webpack setup, fix caching and code splitting, run Module Federation in production, and say plainly when Rspack or Vite would serve you better than another round of tuning.
- Senior engineers · IST + EST overlap
- NDA on day 1
- 24-hour reply
- Projects shipped
- 50+
- Code ownership
- 100%
- Client rating
- 4.8/5
- First reply
- 24h
Builds that stop slowing your team down
When a JavaScript build has become the slowest step in shipping, a webpack development company such as Krapton profiles it, fixes it, and gives you a straight answer on whether it should stay on webpack. For many large applications, webpack remains the right tool: it has the deepest loader and plugin ecosystem, mature Module Federation for micro-frontends, and fine-grained control over chunking and assets. It is the wrong tool to keep forcing when a simpler app would build faster on Vite, or when Rspack could run much of the same configuration with far less waiting. Work starts with measurement: stats files, bundle analyzer reports, and per-loader timing. Typical fixes include enabling the filesystem cache, replacing babel-loader with swc-loader or esbuild-loader, correcting sideEffects flags so tree shaking works, removing duplicate copies of dependencies, and adding content hashes with a separate runtime chunk for long-term caching.
Webpack development services
Build performance audits
Cold builds, rebuilds, and dev server startup profiled with stats output and per-plugin timing, followed by a ranked list of fixes with measured before-and-after results.
webpack 4 to 5 upgrades
Older configs moved to webpack 5: file-loader and url-loader replaced by asset modules, resolve.fallback added for removed Node.js polyfills, and plugins relying on deprecated compilation hooks updated.
Micro-frontend architecture
Micro-frontend architectures with Module Federation, including shared singletons for React and design systems, version negotiation, generated types for remotes, and fallbacks when a remote fails to load.
Bundle size reduction
Vendor and route chunks split deliberately, polyfills trimmed to your browserslist targets, unused locales dropped, barrel imports fixed so tree shaking works, and budgets enforced in CI with size-limit.
Rspack and Vite migrations
When tuning is not enough, builds move to Rspack for a largely compatible configuration or to Vite for a simpler toolchain, with both outputs compared in CI until they match.
Custom loaders and plugins
Loaders and plugins written for internal needs such as code generation, asset pipelines, or license reports, using the documented compiler and compilation hooks.
Why teams choose Krapton for Webpack
Senior engineers, fixed scope, and code you own — the things agencies promise and rarely deliver.
Measurements before opinions
Every recommendation comes with a profile or stats comparison, so you can see which change cut build time or bytes instead of trusting a list of generic tips.
Production caching done right
Content hashes, deterministic module IDs, and a separate runtime chunk keep unchanged files cached in browsers across deploys, which matters as much as raw bundle size.
Honest about migration value
If your setup relies on custom plugins or Module Federation, staying on webpack or moving to Rspack can beat a disruptive Vite rewrite, and we explain the reasoning.
Source maps handled safely
Production builds use hidden source maps uploaded to your error tracker, so stack traces stay readable without publishing original source code to anyone who opens DevTools.
How a Webpack project runs with Krapton
01
Baseline measurement
Cold build, rebuild, and dev server timings plus bundle composition are recorded on your real codebase and CI runners, creating the baseline every change is judged against.
02
Prioritized fix plan
Findings are ranked by expected gain and risk, separating quick configuration changes from deeper work such as loader replacement, chunk redesign, or a bundler switch.
03
Incremental config changes
Changes land in small pull requests with timing and size comparisons attached, so any regression traces back to one commit and reverts cleanly.
04
Guardrails and handover
Bundle budgets and build-time checks go into CI, the final configuration is documented line by line, and your team learns how to extend it safely.
The Webpack stack we build with
Webpack development: questions answered
Why would a team hire a webpack development company?
Because the build has become a bottleneck that nobody on the team has time to own. A webpack development company audits slow builds, upgrades old configs, sets up Module Federation, reduces bundle size, writes custom loaders and plugins, and plans migrations to Rspack or Vite when they pay off. The result should be measurable: shorter build and rebuild times, smaller JavaScript payloads, and caching that survives deploys.
Should we stay on webpack or migrate to Vite?
Stay if you depend on Module Federation, custom loaders, or plugins with no Vite equivalent; consider Vite if the app is a fairly standard SPA and dev server speed hurts daily. There is a middle path too: Rspack implements most of the webpack API in Rust, so large speed gains often come with modest config changes. Prototyping the migration on a branch and comparing real timings settles the question.
Why is our webpack build so slow?
Usually expensive transpilation, missing caching, or too much work per rebuild. Common culprits are babel-loader running over node_modules, type checking inside the build instead of a separate process, no filesystem cache, development source maps heavier than needed, and oversized entry points. Profiling with per-loader and per-plugin timing shows which applies, and the fixes are often configuration changes rather than rewrites.
Can you set up Module Federation for micro-frontends?
Yes, including the parts that cause trouble later. That means deciding which dependencies are shared singletons, pinning version ranges so a remote cannot load a second copy of React, handling remotes that fail to load, and generating types for exposed modules. We also define how teams deploy remotes independently without breaking the host, and how a bad remote gets rolled back quickly.
How do you estimate webpack development services when every build is different?
By measuring first and pricing the fix list that comes out of it. Effort depends on codebase size, the number of entry points and federated remotes, how many custom loaders and plugins exist, the test coverage available to catch regressions, and whether the goal is tuning, an upgrade, or a migration. Krapton shares the measurements alongside the estimate, so each line item has a reason.
Ready to build? Tell us what you have in mind.
Send a short brief and a senior engineer will reply within one business day with next steps — no sales fluff.