symfony/web-profiler-bundle

config/packages/web_profiler.yaml

when@dev:
    web_profiler:
        toolbar: true
        intercept_redirects: false

    framework:
        profiler:
            only_exceptions: false
            collect_serializer_data: true

when@test:
    web_profiler:
        toolbar: false
        intercept_redirects: false

    framework:
        profiler: { collect: false }

config/routes/web_profiler.yaml

when@dev:
    web_profiler_wdt:
        resource: '@WebProfilerBundle/Resources/config/routing/wdt.xml'
        prefix: /_wdt

    web_profiler_profiler:
        resource: '@WebProfilerBundle/Resources/config/routing/profiler.xml'
        prefix: /_profiler