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Bun vs txiki.js: catalog facts
Bun	txiki.js
Free Free and open source. The runtime core is MIT licensed with some bundled components under…	Free Free and open source under the MIT licence.
Windows, macOS, Linux, Command line	Windows, Command line
Runtime, bundler, test runner and package manager in one executable Much faster startup and installs than the Node and npm equivalents	Small footprint compared with larger runtimes Permissive MIT licence
Node compatibility is good but not complete; packages using deep internals can break Younger than Node, so fewer production deployments to learn from	Smaller ecosystem than Node.js, Deno or Bun Limited documentation in the research available
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

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