qlty

Qlty orchestrates dozens of existing tools under one CLI. Instead of configuring ESLint, Pylint, Rubocop, and Semgrep separately, qlty runs them all with a single command and unified output.

The CLI is free. It auto-detects your languages, installs the right linters, and runs them. Supports 20+ languages and wraps established tools (ESLint, Ruff, Clippy, etc.) rather than reinventing analysis from scratch. That's smart: you get battle-tested rules without learning each tool's config format.

The cloud dashboard (qlty.sh) adds PR-level quality gates, trend tracking, and team analytics. Free for open source, paid plans for private repos starting at $30/mo per seat.

The catch: qlty is still early. The tool orchestration approach means you're depending on qlty to correctly configure and update the underlying linters. When an underlying tool changes its output format or rules, qlty needs to adapt. And the cloud pricing at $30/seat/mo puts it in SonarCloud territory: you're paying for the unified dashboard, not the analysis itself.