How is Repl.it built?

When a Repl.it IDE browser creates a new file, it obtains a signed URL from the web server to create the file in Cloud Storage . “That way the browser’s writing to and reading from Cloud Storage directly,” says Amjad. “This enables Repl.it to use Cloud Storage to synchronize its files and file system.”

If you have another screen come up (where your url ends with /repls , /teacher , or /student ), you can head over to https://repl.it/languages and select the HTML, CSS, JS option that way .

WHAT IS REPL.IT? Repl.it is a free IDE (integrated development environment) that allows users to write their own programs and code in dozens of different languages.

Replit’s stated ideals include: encouraging open-source development (e.g. open-sourcing parts of their technology, adding GitHub support to Replit; Replit’s CEO: “I owe my entire career to open-source”)