The $9B startup that wants to create a billion new developers

Amjad Masad started coding at a very young age, driven not by love of tooling but by the act of creation and entrepreneurship. He built his first business at 13 or 14, but found that developer tools were getting in the way—and getting worse. While he started on BASIC with a simple command-line interpreter, by the time he graduated college, setting up a web app had become «a nightmare.» This frustration led him to build tools for himself, including what would become the first browser-based IDE, and later to contribute to React and React Native.

Replet was born from a desire to make programming accessible. The mission evolved over ten years: first solving the development environment, then deployment, and finally in September 2024 launching the first «vibe coding» product that abstracted away code entirely. With Agent 4, the platform now supports multimodal interaction—text, design canvas, drag-and-drop—as users express ideas that transform «almost magically» into real, secure, scalable software. Masad's North Star remains unchanged: anyone who can read and write should be able to build and deploy an app.

Masad highlighted three categories of creation on Replet: personal software, enterprise applications, and entrepreneurial products. A standout example was a physical therapist who spent hundreds of thousands of dollars offshoring development of a sophisticated fascia-release tracking app—complete with body scans and 3D range-of-motion visualization—before taking matters into her own hands on Replet. Masad called it «one of the best health tech apps I've ever seen,» built by someone with zero coding background.

Enterprise use cases split into two camps. First, product development: companies like Whoop report the «amount of ideas they can try has grown by an order of magnitude»—from five out of a hundred ideas to fifty. Second, internal tools and line-of-business applications: revenue operations teams build quote configurators and sales automations, saving hundreds of thousands on SaaS subscriptions while eliminating data silos. In Iceland, a Replet-native agency undercusts traditional firms by 60–70%, delivering faster and cheaper because they vibe-code everything. Masad noted a founder building software for sports clubs still using MS-DOS, underscoring how many blind spots Silicon Valley has.

Masad envisions a future where almost everyone inside a company acts like a founder. They wake up each morning asking, «How can I make the company more successful?» then roam the organization identifying problems and deputizing agents to solve them. Replet already runs an internal «vibe coding resident» team with no fixed function—they move from support to HR, building custom tools wherever friction exists. After they built a priority-queue visualizer for the support team, CSAT scores rose; next they tackled onboarding with an internal HR platform.

Sales will endure, but transform into education and evangelism—helping other companies adopt and learn new technology. Traditional engineering roles may shrink, but the need for business generalists who understand customers, economy, vision, and AI capabilities will grow. «There's always more to automate,» Masad said. «Our job will continuously get higher and higher level.» The computer was once a room full of humans doing arithmetic; then it became a box operated by programmers; now it's an agent using that box. The abstraction ladder keeps climbing.