Repl.it

In plain words

Repl.it is an online integrated development environment that lets users write, run, and deploy applications in any programming language directly from a browser. The platform automatically deploys apps when code opens a port, eliminating separate deployment steps. It serves developers who need to quickly prototype websites, applications, and machine-learning models without local setup. The tool supports multiple programming languages and stacks, making it useful for both learning and production work.

written from the facts on this page · September 2026

From the sources

Repl.it is an online IDE wherein 2 seconds you can boot up an environment for your favorite programming stack or language. If you run a program that happens to open a port, you've also just deployed an app -- that easy! Our users use it for everything from shipping websites and apps to training machine-learning models.

Describe what you want. Replit builds it. Get a working app or website in minutes. No coding required.

• 
  repl.it2015 · replit.com · ▲109

  Online code repl for pretty much any language.

• 
  repl.it — A client-side web REPL for 15+ languages2011 · repl.it · ▲27

  Describe what you want. Replit builds it. Get a working app or website in minutes. No coding required.

• 
  Repl.it Teams for Education2021 · replit.com · ▲145

  Zero-setup collaborative cloud IDE for teachers and students

• 
  Online Haskell REPL2017 · repl.it · ▲82

  We heard your requests for Haskell and today we're excited to finally announce Haskell as yet another language we support. We've decided to put our focus...

• 
  Repl.it Chrome2019 · chromewebstore.google.com · ▲173

  Run code anywhere, with just a click 🖱️

• AT
  A tool to seed your dev database with real data2022 · ▲129

  A bunch of developers and myself have created RepliByte - an open-source tool to seed a development database from a production database. Features: - Support data backup and restore for PostgreSQL, MySQL and MongoDB - Replace sensitive data with fake data - Works on large database (> 10GB) (read Design) - Database Subsetting: Scale down a production database to a more reasonable size - Start a local database with the prod data in a single command - On-the-fly data (de)compression (Zlib) - On-the-fly data de/encryption (AES-256) - Fully stateless (no server, no daemon) and lightweight…

• 
  /dev/null▲468

  a social network for devs

  Dev tools · 2d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 25d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 22d ago · openbot.run

• 
  Talanoa▲340

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 20d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 27d ago · corespeed.io

• 
  Notion 2.0▲2,156

  The all-in-one workspace - notes, tasks, wikis, & databases

  Work · 2018 · notion.so

• 
  MAKE Book: The Indie Maker Handbook▲1,372

  Learn to build profitable startups the indie way

  Dev tools · 2018 · readmake.com

• 
  Overflow▲1,139

  The world’s first user flow diagramming tool for designers

  Work · 2018 · overflow.io

• 
  RoughJS – Create hand-drawn graphics using JavaScript▲1,087

  Rough.js is a light weight javascript library that lets you draw graphics with a hand-drawn, sketchy, appearance.

  Life & fun · 2018 · roughjs.com

• 
  Sunsama▲999

  If Trello & Google Calendar had a baby.

  Work · 2018 · sunsama.com

• 
  Airtable Blocks▲877

  500,000+ brands use Airtable to enable real-time collaboration, automate repetitive tasks & manual work, and streamline business processes in minutes. Join them.

  Dev tools · 2018 · airtable.com