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MERN STACK

MERN apps — one language, full stack .

MongoDB + Express + React + Node.js — one JavaScript codebase from database to browser. Dezvo builds MERN-stack SPAs, dashboards, and real-time apps for SaaS and marketplaces. Great when schema-flexible data and team JS expertise meet.

See Our Work
Stack components
  • MongoDB (Atlas / self-hosted)
  • Express / Fastify
  • React 19 + TypeScript
  • Node.js LTS
  • Socket.io for real-time
WHAT WE BUILD

MERN across product types.

SaaS MVPs

Auth + multi-tenant + Stripe + dashboard — typical 8-12 week ship. Mongo handles flexible product schemas cleanly.

Marketplaces

Two-sided platforms — buyers, sellers, ratings, chat. Mongo + GraphQL for complex relationships.

Real-time apps

Live dashboards, collaborative editing, chat. Socket.io + Mongo change streams.

Internal tools

Admin panels, ops dashboards, ERP front-ends. Faster than Retool when you outgrow no-code.

FAQ

Common questions, answered.

If your question isn't here, message us — usually same-day reply.

MERN uses React, MEAN uses Angular — MERN is far more common today. Next.js is React + Node bundled with SSR, routing, caching, and serverless deploy. We pick Next.js over plain MERN for most new projects unless there's a specific reason.

Mongo when schemas are genuinely flexible (user-generated content, varied product structures). Postgres for everything else — including most SaaS, fintech, and B2B. Postgres + JSON columns covers 90% of 'we need Mongo' cases.

Clerk, Auth0, Supabase Auth, or custom JWT-based with refresh tokens. Roles, permissions, multi-factor — built in not bolted on.

Socket.io for chat / live cursors / notifications. Mongo change streams for live data sync. SSE for server-pushed updates. We pick based on the use case.
RELATED SERVICES

Bundle the services that work together.

Next.js Development

Modern React framework — usually preferred over plain MERN.

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Node.js Development

Just the Node side of MERN.

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React Development

Just the React side of MERN.

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