Handwired
Turns regular JavaScript into an exact, differentiable neural net, with no training step.
Key features
- Transforms if-else, loops, and state into matrix multiplication and ReLU
- The weights are written by hand, so the net does not need training
- The whole program stays differentiable
- Runs the collected matmul in JavaScript or on WebGPU
- Live demos include a JSON search over 100k documents
- MIT licensed
- Category
- Dev Tools
- Who it's for
- Developers turning ordinary JavaScript into a differentiable net.
- Tags
- javascriptwebgpunotes-docssearch
- Website
- chenglou.me
- Listed
- 2026-10-16
Frequently asked questions
Is Handwired free?
Yes. Handwired is open source and free to use.
What is Handwired used for?
Turns regular JavaScript into an exact, differentiable neural net, with no training step. Typical uses: transforms if-else, loops, and state into matrix multiplication and ReLU; the weights are written by hand, so the net does not need training; the whole program stays differentiable.
What are the best Handwired alternatives?
Alternatives in the same category include Puter Everything, Agent Toolkit for AWS, DigUp, Astro, PdfCraft.
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