What Is E2B and How Does It Relate to Fragments?

E2B is the organization behind Fragments, and Fragments is one of its open-source projects. The site itself states this directly: the page heading reads "Fragments by" and the excerpt notes that "Fragments is an open-source project made by" E2B. So if you are evaluating Fragments, you are evaluating a project maintained under the E2B name — not a standalone tool with unknown ownership.

The relationship in plain terms

The subdomain fragments.e2b.dev is itself a signal: the project lives under E2B's domain rather than a separate brand domain, which is consistent with it being an E2B project rather than a third-party product.

Why the "made by E2B" detail matters

When you decide whether to adopt or build on a tool, the maintainer is part of the decision. Knowing that Fragments comes from E2B tells you:

• There is an identifiable organization behind it, not an anonymous repository.
• Maintenance context is tied to E2B's other work, so the project's direction may be shaped by E2B's broader priorities.
• The hosted entry point is on E2B's infrastructure, which is where you would go to use it directly.

What Fragments is, in one line

The site describes Fragments as the "open-source version of Anthropic's Artifacts." That framing is the quickest way to understand its purpose: it is a self-hostable, open-source take on the Artifacts experience, published by E2B.

Practical takeaways

• If you want to know who is behind Fragments, the answer is E2B.
• If you want to use it, the entry point is fragments.e2b.dev, which offers a sign-in option and links to the GitHub repository ("Star on GitHub").
• If you want to inspect or contribute, the source is open source, and the site points you to GitHub.

For questions about how Fragments compares feature-by-feature to Anthropic Artifacts, or where exactly to find the source code and sign-in page, those are covered separately — the key fact here is simply that E2B is the maker, and Fragments is its open-source project.