I built 3 functional web apps in 4min… on my phone! #replit

by Sander Saar

Replit Agent handles everything from setting up the environment and writing code to configuring databases and generating user interfaces. The creator showcases an EV cost calculator and an Estonian Wordle game before asking viewers what they would create.

For agents: machine-readable ARVP doc at /public/creators/sander-saar/videos/video_fcYZeWnTBd0/arvp.json · Browse this video library

Chapters

  1. 0:00 How Replit Agent Automates Development

    Replit Agent handles everything from setting up the environment and writing code to configuring databases and generating user interfaces.

    On screen: A man enthusiastically speaks and gestures in front of an animated mobile screen recording showing the Replit Agent building code and installing dependencies.

  2. 0:39 Building More Apps and Final Thoughts

    The creator showcases an EV cost calculator and an Estonian Wordle game before asking viewers what they would create.

    On screen: The presenter stands in front of a web application screen displaying an EV versus ICE car cost comparison calculator with charts.

Visual moment index

What the footage shows, shot by shot. It is derived from the video itself, independent of the commentary. Timestamps link to the exact second.

0:00–0:02 A man speaks enthusiastically while superimposed over the homepage of a mobile coding application. On screen: Create QUICK START Start with AI Describe what you want to build Websites Build and host websi GITHUB Settings Import from URL RECENTLY USED Python RECOMMENDED

0:02–0:06 The presenter continues talking as a text prompt is entered into the AI application behind him. On screen: Start With AI Local landmarks map Stock analysis ite Waitlist website Describe what you I Q W E R T Y U I'm O P A L

0:07–0:11 The man gestures while speaking in front of the AI-generated website project screen. On screen: Start With AI FutureYouVision Progress Output "Future You" Website Concept: A fun, AI-powered website where users can input details about their current…

0:11–0:18 A man enthusiastically speaks to the camera against a background display of the Replit mobile app planning a web application. On screen: FutureYouVision Progress Output predicting their future pet or travel destination. just now | Read Absolutely! Let me propose what we'll build for you. I've…

0:18–0:32 A man enthusiastically speaks and gestures in front of an animated mobile screen recording showing the Replit Agent building code and installing dependencies. On screen: FutureYouVision Progress Output templates/index.html <script src="https://cdnjs.clo </head> <body class="bg-gray-100 min-h-scr <header class="bg-blue-600 tex…

0:32–0:36 A man speaks in the foreground overlaying a mobile screen recording demonstrating the form inputs of the Future You app. On screen: FutureYouVision Progress Output replit.de Ready to share with the world? Deploy your app Future You Tell us about yourself Name Age Current Occupation 1 / 3…

0:36–0:40 The presenter continues talking as the app generates a text summary before switching to a new EV vs. ICE comparison calculator interface. On screen: FutureYouVision Progress Output {...}.replit.de Ready to share with the world? Deploy your app Your Future Vision In the year 2041, Sander, at the spruced up…

0:40–0:42 The speaker explains the EV versus ICE comparison app while slider parameters are adjusted on the screen behind him. On screen: Ready to share with the world? Deploy your app EV purchase price ($) 45000 20000 100000 Electricity cost ($/kWh) 0.15 0.05 0.50 EV efficiency (miles/kWh) 2.50…

0:42–0:50 The presenter stands in front of a web application screen displaying an EV versus ICE car cost comparison calculator with charts. On screen: Ready to share with the world? Deploy your app EV vs ICE Car Cost Comparison Calculator Compare the total cost of ownership between electric vehicles (EV) and…

0:50–0:52 The presenter gestures enthusiastically in front of code generation and package installation terminal screens. On screen: Creating static/js/game.js static/js/game.js rowDiv.appendChild(keyButton); }); keyboard.appendChild(rowDiv); const enterKey =…

0:52–0:56 The speaker presents in front of an Estonian word guessing game interface running in the browser. On screen: Estonian Word Guessing Game Q W E R P Ü Õ A S D F L Ö Ä Z X K M V I U

0:57–1:00 A man speaks toward the camera positioned in front of mobile screen mockups demonstrating coding and web applications. On screen: Make & launch websites, games, bots and more https://gallery.mark.repl.co

Transcript

0:00 Speaker A: I built the web app in 4 minutes and 2 seconds. Speaker A: Or should I say Replit Agent built it I came up with an idea for websites where AI predicts your future based on your current situation. Speaker A: Sounds crazy, but watch this. Speaker A: You enter the idea in Replit, an agent comes to life to propose a plan of action and additional features and gets to build it for you. Speaker A: When previous AI agents either help you write or review code, Replit Agents takes over everything from setting up the development environment, installing necessary dependencies and tools, configuring databases, generating code and then deploying it in their servers.

0:32 Speaker A: Also, the user interface was automatically created for easy input where I could enter my name, age, occupation, interest and output my future vision. Speaker A: I then built the Calculator app for comparing EV versus ICE car total cost of ownership where you can enter the cost of fuel insurance efficiency and see a graph. Speaker A: Yes, EVs are cheaper as well as a wordle game but in Estonian so my parents could also play going back and forth to make sure it looks good on mobile. Speaker A: And should I release any of these apps, what would you create?