wasmtime vs deno
wasmtime and deno share 5 technologies: Tokio, log, tracing, env_logger, and tracing-subscriber. Both are written in Rust.
LinkedInWhat they share and what sets them apart
bytecodealliance
wasmtime
A lightweight WebAssembly runtime that is fast, secure, and standards-compliant
Rust18.8kRead on November 6, 2026, at commit 0ad712cWhat is wasmtime built with?Only in wasmtime
- wasmtime
ort
In common
denoland
deno
A modern runtime for JavaScript and TypeScript.
Rust108.8kRead on November 4, 2026, at commit e7b39ebWhat is deno built with?Only in deno
Side by side
wasmtimedeno
SizeLines written by people and agents, without generated ones; code files, without tests.
wasmtime829,462 lines written1,588 code files
deno1,217,015 lines written1,355 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
wasmtime0.1% of its commits signed by AIWith Claude Code and Gemini CLI
deno2.4% of its commits signed by AIWith Claude Code, GitHub Copilot, Cursor, and Codex
ActivityFrom GitHub and its history, on the day SeeRepo read it.
wasmtimeLast push November 6, 202616,773 commits18,832 stars
denoLast push October 29, 202617,392 commits108,801 stars
TestsThe files that test the code, and the share of code files a test imports.
wasmtime422 test files4.2% of its code files have a test that imports them
deno4,394 test files6.1% of its code files have a test that imports them
Frequently asked questions
Which is bigger, wasmtime or deno?
deno, with 1,217,015 lines written; wasmtime has 829,462.
The proof: denoland/deno's code at commit e7b39eb
Which has more GitHub stars, wasmtime or deno?
deno, with 108,801 stars; wasmtime has 18,832.
The proof: denoland/deno on GitHub
Which has more tests, wasmtime or deno?
deno, with 4,394 test files; wasmtime has 422.
The proof: denoland/deno's code at commit e7b39eb
Which was updated more recently, wasmtime or deno?
wasmtime: its last push was on November 6, 2026, and deno's on October 29, 2026.
Which has more commits signed by AI, wasmtime or deno?
deno: an AI signed 2.4% of its commits, with Claude Code, GitHub Copilot, Cursor, and Codex; in wasmtime, 0.1%.
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