Wasmrt: Portable, lightweight and embeddable WebAssembly runtime in C
Wasmrt is a portable and lightweight WebAssembly runtime designed for embedding in C projects. It supports WASI preview1 and allows for the execution of sandboxed plugins and scripts. The runtime requires Clang and wasm-ld for building and includes various features for handling WebAssembly modules.
- ▪Wasmrt is a single-header WebAssembly runtime that targets embedding in C projects.
- ▪It supports WASI preview1 and allows for the execution of sandboxed plugins and scripts.
- ▪The runtime requires Clang and wasm-ld for building and includes a variety of features for WebAssembly module handling.
Hacker News (Newest) files mainly under programming. We currently carry 5,306 of its stories.
Story provenance
Source · retrieval · rights · ranking — open for full record
inspect →
Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | GitHub |
| Canonical URL | https://github.com/abdimoallim/wasmrt |
| Publication time | Fri, 29 May 2026 10:40:18 +0000 |
| Retrieval time | 2026-05-29T10:50:00.361Z |
| Last seen | 2026-05-29T10:50:00.361Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | gMmJkLaRYyzB |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
wasmrt A portable, lightweight, single-header WebAssembly runtime with full WASI preview1 support. It targets the use case of embedding a WASM interpreter in a C project to run sandboxed plugins, scripts or portable modules. Building make # builds wasmrt / wasmrt.exe make wasm # compiles all test/*.c to test/*.wasm make test # runs the test suite make clean Requires Clang and wasm-ld. On Linux, clang + lld. On Windows, set CC in the Makefile to the Clang path. Embedding One translation unit defines the implementation. All others include the header without the macro. #define WASMRT_IMPLEMENTATION #include "wasmrt.h" wasm_module and wasm_instance are large structs. Declare them static or allocate them on the heap, not on the stack.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.