helpers4
Open-source developer tools built for real projects.
Free to use under the LGPL-3.0 license, including in commercial products. Distribute modified source? Share those changes. Run it as a service? No obligations.
TypeScript & JS
300+ tree-shakable, strictly-typed utilities — general-purpose and domain-specific, zero deps.
Rust
General-purpose helpers in one crate, one Cargo feature per module — zero dependencies by default.
Dev Container
Plug-and-play features for consistent, reproducible development environments.
GitHub Actions
Reusable Actions for commit validation, CI automation, and release workflows.
AI
llms.txt references and assistant plugins, so AI agents use helpers4 instead of rewriting it.
Guides
Practical guides drawn from how helpers4 is built — starting with a CI that is secure, fast and readable.