SonarQube vs DeepSource

From €32 per year per 100k lines of code (Developer Edition, indicative)

From $8 per user/month (indicative, Starter)

Licensed by lines of code, which makes cost predictable but expensive on large monorepos. Branch and PR analysis requires a paid edition.

Among the cheapest per-developer options with autofix included.

Community Build is free and self-hosted, covering the main languages without branch analysis.

Free for open source and small teams.

Category standard

Sonar · since 2007

Established

DeepSource · since 2019

• Clean-as-you-code is the only quality-gate model that reliably works on legacy codebases.
• Very broad language coverage from one tool and one gate.
• Self-hosting satisfies organisations that cannot send source code externally.

• Autofix commits remove the tedious half of acting on findings.
• Low false-positive rate keeps developers engaged with the tool.
• Cheap and quick to adopt.

• Branch and pull-request analysis — the feature most teams actually need — is paid only.
• Default rule sets are noisy until tuned to the team.
• Self-hosted instances need real resources and maintenance.

• Narrower language coverage than SonarQube.
• Smaller vendor with less enterprise governance tooling.
• Autofix still needs review — it is not unattended.

Polyglot organisations that need one quality gate across every repository.

Teams that want static analysis developers do not resent.