By the numbers

A quantitative snapshot of the Grafana repository.

Data collected on 2026-04-30 against commit 837f0fcd393 on main.

Size

xychart-beta horizontal
    title "Source lines of code by language (non-test)"
    x-axis ["Go", "TypeScript", "TSX (React)"]
    y-axis "Lines" 0 --> 320000
    bar [270475, 175000, 116000]

Metric	Count
Go source files (non-test)	~4,200
Go test files (*_test.go)	1,755
TypeScript / TSX files (non-test)	~6,000
TS/TSX test files (.test.* / .spec.*)	2,275
Lines of Go code (non-test)	270,475
Lines of TS/TSX code (non-test)	~291,000
Top-level workspaces (packages/*)	16
Backend apps/ modules	21
Built-in datasource plugins (public/app/plugins/datasource/)	~30
Backend service domains (pkg/services/*)	73
pkg/tsdb/ datasource backends	19

The codebase is roughly balanced between Go and TypeScript — neither side is dominant. A large portion of the lines in apps/ are generated OpenAPI / CRD code (zz_generated_*.go, *_spec_gen.go).

Activity

Metric	Value
Total commits on main	68,721
First commit date	2013-01-25
Latest commit date (snapshot)	2026-04-29
Unique committers across history	~3,225

Hot directories (last 90 days)

Directory	Files touched
public/app/	11,555
pkg/services/	2,823
apps/dashboard/	2,023
pkg/registry/	1,908
public/locales/	1,478
packages/grafana-ui/	1,332
pkg/tests/	1,251
pkg/storage/	1,054
docs/sources/	846
packages/grafana-data/	560

Most-changed individual files (last 90 days)

File	Touches
public/locales/en-US/grafana.json	344
pkg/services/featuremgmt/registry.go	197
pkg/services/featuremgmt/toggles_gen.csv	196
pkg/services/featuremgmt/toggles_gen.json	191
packages/grafana-data/src/types/featureToggles.gen.ts	170
yarn.lock	132
go.mod	129
pkg/services/featuremgmt/toggles_gen.go	112

The frequent churn in featuremgmt/ and the auto-generated toggle files is normal — every PR that adds or modifies a feature flag re-runs make gen-feature-toggles which rewrites this set of files.

Bot-attributed commits

xychart-beta horizontal
    title "Commit attribution (all-time)"
    x-axis ["Human-authored", "Bot-attributed"]
    y-axis "Commits" 0 --> 70000
    bar [65327, 3394]

About 4.9 % of historical commits have a bot signature in the author or trailers (grafana-delivery-bot, dependabot[bot], github-actions[bot], renovate[bot]). This is a lower bound — inline AI-assisted edits made by humans through editors are indistinguishable from regular commits.

Complexity hotspots

Largest non-generated Go files

File	Lines
apps/dashboard/pkg/migration/conversion/v1_to_v2alpha1.go	3,155
pkg/tests/apis/provisioning/common/testing.go	3,141
pkg/services/featuremgmt/registry.go	3,106
pkg/apimachinery/utils/meta_mock.go	2,779

The largest Go files in the repo as a whole are generated (zz_generated_* and *_spec_gen.go) and cluster around the apps/dashboard/ and apps/iam/ API surface.

Largest non-test TS files

File	Lines
public/app/features/alerting/unified/mockGrafanaNotifiers.ts	3,675
public/app/features/datasources/mocks/store.navIndex.mock.ts	2,384
packages/grafana-o11y-ds-frontend/src/mocks/traceResponse.ts	1,799
public/app/features/transformers/docs/content.ts	1,663
packages/grafana-e2e-selectors/src/selectors/components.ts	1,628
public/app/plugins/datasource/tempo/datasource.ts	1,609

Many of the largest TS files are mock fixtures or content tables. The biggest piece of "real" runtime code is the Tempo datasource (tempo/datasource.ts), which is a known refactor candidate.

Dependencies

• Go: hundreds of direct entries in go.mod (756 lines), each annotated with an owning team via // @grafana/<team> comments.
• JS: thousands of resolutions in yarn.lock (1.3 MB).
• Mono-go workspace: 22 modules listed in go.work (the root + every apps/<name> module + a few helpers).

See Dependencies for ownership detail.