StackBlitz

Passionate and responsive support team: A reviewer highlighted that the StackBlitz team is “extremely passionate” and even joined video calls to help troubleshoot issues.

Great collaboration features: Real‑time collaboration and easy link‑sharing make it ideal for teams, code reviews, and education.

Strong framework support: StackBlitz runs React, Vue, Angular, and even Next.js directly in the browser, which many reviewers consider a major advantage.

Instant development environments: Developers consistently praise the instant, zero‑install environments that feel like a local setup but run entirely in the browser.

Fast and easy to use: Users appreciate how quickly StackBlitz loads and how simple it is to start coding without any setup. One reviewer said it's “easy in use and all the functions work properly.”

Some features locked behind paid plans: Users note that unlimited private projects, unlimited uploads, and some advanced features require paid tiers.

Backend/database limitations: StackBlitz does not support direct TCP connections, so traditional databases like MySQL/Postgres cannot connect normally.

Limitations with large/complex projects: Browser-based environments may struggle with heavy enterprise applications; reviewers cite memory and scaling constraints.

Steep learning curve for some frameworks: A reviewer noted difficulties when using unfamiliar frameworks despite StackBlitz’s ease of use.