---
title: "What Tech Stack Does Slack Use? | UniqueSide"
description: "Slack stack: React, TypeScript frontend, PHP, Hack, Java backend, MySQL, Vitess."
url: "https://www.uniqueside.io/tech-stack/slack"
canonical: "https://www.uniqueside.io/tech-stack/slack"
type: "tech-stack"
date: "2026-05-31"
lastmod: "2026-06-03"
---

# What Tech Stack Does Slack Use?

Team messaging and collaboration platform. Below is the stack powering Slack, based on widely reported engineering information.

## Slack Tech Stack

- **Frontend:** React, TypeScript
- **Backend:** PHP, Hack, Java
- **Database:** MySQL, Vitess
- **Hosting / Cloud:** AWS
- **Notable Tools:** Kafka, Memcached, Solr, Redis

## How to Build a Product Like Slack

You do not need Slack's full stack to launch. A lean, modern stack (Next.js, Node.js, a managed database) covers the core capabilities; adopt heavier infrastructure only as you scale. UniqueSide builds production-ready MVPs on stacks like this in 15 days, from $8,000.

[MVP development service](https://www.uniqueside.io/services/mvp-development) · [Technologies we use](https://www.uniqueside.io/technologies) · [Start a project](https://tally.so/r/wdaQ1N)