What is wasmtime built with?

wasmtime is a Rust repo built with wasmtime and Tokio. It uses AI through ort, is tested with libfuzzer-sys, arbitrary, and filecheck, and deploys with log, tracing, env_logger, and tracing-subscriber. It has 829,462 written lines, with 422 test files.

Read on November 6, 2026, at commit 0ad712c. Read it as markdown

Backend

AI 1

Support

The base 2

Testing 3

  • arbitrary38 files
  • filecheck1 file
  • libfuzzer-sys

Deploy 4

Tools 22

  • clap40 files
  • clap_complete1 file
  • pest1 file
  • pest_derive1 file
  • wit-bindgen73 files
  • wasmparser61 files
  • regalloc247 files
  • gimli36 files
  • proc-macro223 files
  • quote23 files
  • syn13 files
  • wat10 files
10 more
  • wasmprinter9 files
  • wasm-smith5 files
  • codespan-reporting1 file
  • fxprof-processed-profile1 file
  • cranelift
  • cranelift-codegen
  • cranelift-entity
  • cranelift-frontend
  • cranelift-module
  • cranelift-native

Other 70

  • smallvec57 files
  • Hyper11 files
  • postcard8 files
  • rustls4 files
  • bumpalo2 files
  • once_cell1 file
  • tokio-native-tls1 file
  • tokio-util1 file
  • wasmi1 file
  • anyhow118 files
  • serde_derive64 files
  • target-lexicon57 files
58 more
  • rustix44 files
  • futures41 files
  • hashbrown37 files
  • bytes32 files
  • object32 files
  • serde27 files
  • async-trait26 files
  • windows-sys26 files
  • libc25 files
  • wasm-encoder22 files
  • http19 files
  • serde_json11 files
  • capstone10 files
  • http-body-util10 files
  • rand10 files
  • tempfile10 files
  • thiserror10 files
  • indexmap6 files
  • libm6 files
  • rayon6 files
  • bitflags5 files
  • heck5 files
  • http-body5 files
  • itertools5 files
  • sha25 files
  • url4 files
  • num-bigint3 files
  • region3 files
  • rustc-hash3 files
  • toml3 files
  • zstd3 files
  • backtrace2 files
  • base642 files
  • encoding_rs2 files
  • mach22 files
  • pin-project-lite2 files
  • semver2 files
  • similar2 files
  • termcolor2 files
  • tokio-rustls2 files
  • webpki-roots2 files
  • addr2line1 file
  • directories1 file
  • flate21 file
  • hyper-util1 file
  • memmap21 file
  • native-tls1 file
  • num_cpus1 file
  • num-traits1 file
  • openssl1 file
  • regex1 file
  • tokio-openssl1 file
  • toml_edit1 file
  • v81 file
  • walkdir1 file
  • windows1 file
  • cranelift-jit
  • wasmtime-wasi

Other repos with a similar stack

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Frequently asked questions

What language is wasmtime written in?
wasmtime is written in Rust, with 829,462 written lines.
What framework does wasmtime use?
wasmtime is built with wasmtime and Tokio.
Does wasmtime use AI?
Yes. wasmtime uses AI through ort.
Does wasmtime have tests?
Yes. wasmtime has 422 test files and is tested with libfuzzer-sys, arbitrary, and filecheck.
Which repos have a stack like wasmtime's?
The ones that share most of its stack:warpdotdev/warpscreenpipe/screenpipedenoland/deno

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