run anything, know nothing.
$
go install rexrun.dev/rex/cmd/rex@latest
click to copy
$ git clone https://github.com/gin-gonic/gin && cd gin
$ rex
🦖 gin
stack go
commands
rex test → go test ./...
rex run → go run .
rex build → go build ./...
rex deps → go mod download
$ rex test
→ go test ./...
ok github.com/gin-gonic/gin 3.1s
✓ 498 tests passed
Zero config
No files to write. No setup. Works instantly in any repo.
Transparent
Always shows the command it runs. No magic, no surprises.
Fast
Single binary, <50ms startup. No runtime, no network calls.
Universal
Go, Node, Python, Rust, Java, Docker, Make, Just. One interface.
Smart fallback
Reads Makefile, Justfile, Taskfile, package.json scripts first.
CI-ready
Correct exit codes. Works in GitHub Actions, GitLab CI, any pipeline.
Supported stacks
Go
Node.js
Python
Rust
PHP
Ruby
Java
Zig
Elixir
Makefile
Justfile
Try it — paste any GitHub repo
See what rex would detect without installing anything