01 · Department
Auth & Identity
6 tools · aws-vault, sops, age, granted
02 · Department
Provisioning & IaC
6 tools · opentofu, terragrunt, atlantis, infracost
03 · Department
Kubernetes & Containers
14 tools · TUIs, debug, log tailers
04 · Department
Networking & DNS
13 tools · diagnose, trace, inspect
05 · Department
Observability & Logs
9 tools · lnav, btop, jq, otel-collector, ctop
06 · Department
Cost & FinOps
5 tools · infracost, opencost, komiser
07 · Department
Security & Compliance
6 tools · trivy, gitleaks, checkov, falco
08 · Department
CI/CD & Pipelines
6 tools · act, flux, goreleaser, earthly
09 · Department
Database & Data
5 tools · pgcli, usql, atlas, dbeaver
10 · Department
Shell & Productivity
16 tools · fzf, ripgrep, zoxide, lazygit
11 · Department
API & Testing
6 tools · Bruno, Hurl, k6, hey, oha
12 · Department
Container & Images
5 tools · skopeo, crane, syft, cosign
13 · Department
Local Dev & Runtimes
5 tools · OrbStack, Colima, DevPod, Lima
14 · Department
Git & Source Control
6 tools · tig, gh, gitui, git-cliff, onefetch
15 · Department
Testing & Integration
7 tools · floci, testcontainers, terratest, bats, pact
*
Selection criteria: open-source tools with active maintenance and a public repository — no SaaS, no freemium, no sponsored entries, no abandoned projects. Every repo link goes to the official source. Each entry shows what it replaces (the mental hook most engineers use), the form (TUI · CLI · GUI · Web UI) and the implementation language. GUI covers native desktop apps; Web UI covers self-hosted web interfaces you deploy. The ★ marks the picks considered essential on every cloud engineer's machine — opinionated, not a ranking. Open a PR on GitHub if something obvious is missing.