WebAssembly startup Dylibso Inc. today announced that it has raised $6.6 million in new funding to help teams take WebAssembly to production.

WebAssembly is a binary instruction format and a virtual machine that brings high performance to web browser applications, enabling developers to build high-speed web apps in whatever language they choose.

Founded in 2022, Dylibso is the company behind Extism, an open-source universal plug-in system. Powered by WebAssembly, Extism’s focuses on making any program extensible by end users. The system has been adopted in large projects across GitHub and is currently receiving community contributions for new language software development kits, including Java, C# and Zig, which will be added to 13 other languages Extism supports, including Go, Rust, Ruby, Python and PHP.

Along with its funding, Dylibso also today announced the general availability of its first product, Modsurfer, a system of record for WASM. Modsurfer offers DevOps teams a system of record with diagnostics applications to track, investigate, search and validate WebAssembly modules.

Modsurfer allows developers to gain visibility and analytics into their WebAssembly binaries by exposing the internal contents necessary to debug modules and ensure compatibility with runtime environments. The product is described by the company as an “X-ray-like capability” that “developers have not had access to before.”

Features of Modsufer include a fully auditable database of modules, specifically indexed for search and debugging, the ability to extract critical information from opaque binary format with security scanning and CLI/GitHub action for pipeline integration, and an upgrade path from free to enterprise subscription when headed to production.

“We are focused on delivering best-in-class tools for developers to have everything they need to be successful with WASM in development, integration and in production,” Steve Manuel, co-founder and chief executive officer of Dylibso, said in a statement. “With the systems and tooling we’re building, WASM should be the compilation target of choice for all developers shipping code.”

The Series A round was led by Felicis Ventures LLC and included participation from previous investors Boldstart Ventures Management LLC, Pebblebed Ltd. and Crew Capital Investments Ltd. With the new funding, Dylibso has raised $8.2 million to date, according to data from Crunchbase.

Image: Dylibso