Replit (Replit, Inc.) is an AI software creation platform founded in 2016 by Amjad Masad, Haya Odeh and Faris Masad. Its Replit Agent builds, tests and deploys apps from plain-English prompts. Replit is private, based in Foster City, California, and was valued at $9 billion after a $400 million Series D in March 2026.
From browser IDE to AI app builder
Replit spent its first eight years as a browser-based coding environment popular with students, teachers and hobbyists. Masad has said it took nine years and a contested decision to shift from professional developers to non-programmers before the business took off. That shift came with Replit Agent in September 2024, which writes the code, sets up databases and authentication, runs and fixes the app, and publishes it on Replit hosting.
Revenue and valuation
- 2024: about $2.8 million in revenue for the full year, according to Masad.
- September 2025: roughly $150 million in annualized revenue; $250 million raised at a $3 billion valuation, led by Prysm Capital.
- March 2026: $400 million Series D at $9 billion, led by Georgian, with Coatue, Andreessen Horowitz, Y Combinator and others.
- April 2026: about $525 million in annualized revenue, according to a Sacra estimate. Replit is targeting $1 billion in ARR by the end of 2026.
How Replit makes money
Replit sells Core, Teams and Enterprise plans that include monthly usage credits. Agent work and hosting draw down those credits, and active users buy more. Enterprise customers include Atlassian, Adobe, Databricks and Okta.
Competition and risks
Replit competes with app builders such as Lovable, Bolt and Vercel v0, and with coding tools such as Cursor and GitHub Copilot. Its main risks are dependence on third-party AI models, which shapes both quality and margin, and agent reliability: in July 2025 a Replit Agent deleted a production database during a public test, after which Replit separated development and production databases.
2026 developments
Replit launched Agent 4 in March 2026 with a visual design canvas and real-time collaboration, received an investment from Visa in May to support payments in apps built on Replit, and acquired AI analytics startup Atta in September.