allan2/dotenvy

Health v2 · maintenance only

Adoption not part of the score

1245 stars · 80 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

dotenvy is a well-maintained Rust fork of the dotenv crate for loading environment variables from .env files, recommended as the replacement in RUSTSEC-2021-0141. It offers a library API (including a non-environment-modifying loader), compile-time and runtime macros, and a binary that loads an env file before running a command.

Use cases

• load environment variables from a .env file in a Rust app
• replace the unmaintained dotenv crate flagged by RUSTSEC-2021-0141
• parse env files without mutating process environment
• run a command with variables from an env file
• inspect env variables at compile time in Rust
• support variable substitution in env files

When to choose

• you are writing a Rust application or service that reads configuration from .env files
• you need a maintained, secure alternative to the dotenv crate
• you want a CLI to preload env files before executing commands
• you need compile-time env inspection via macros

When to avoid

• your project is not in Rust
• you need full configuration management beyond simple key-value env files (e.g., YAML/TOML configs)
• you rely on the unpublished 0.16 API, which is still subject to change

Facets

library · maturity stable

configuration-management developer-tools cli developer-tools backend rust cross-platform cli dotenv env-file environment-variables rust-crate config-loading command-line

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