Usage: node [options] [ script.js ] [arguments] node inspect [options] [ script.js | host:port ] [arguments] Options: - script read from stdin (default if no file name is provided, interactive mode if a tty) -- indicate the end of node options --abort-on-uncaught-exception aborting instead of exiting causes a core file to be generated for analysis --allow-addons allow use of addons when any permissions are set --allow-child-process allow use of child process when any permissions are set --allow-fs-read=... allow permissions to read the filesystem --allow-fs-write=... allow permissions to write in the filesystem --allow-wasi allow wasi when any permissions are set --allow-worker allow worker threads when any permissions are set --build-snapshot Generate a snapshot blob when the process exits. --build-snapshot-config=... Generate a snapshot blob when the process exits using aJSON configuration in the specified path. -c, --check syntax check script without executing --completion-bash print source-able bash completion script -C, --conditions=... additional user conditions for conditional exports and imports --cpu-prof Start the V8 CPU profiler on start up, and write the CPU profile to disk before exit. If --cpu-prof-dir is not specified, write the profile to the current working directory. --cpu-prof-dir=... Directory where the V8 profiles generated by --cpu-prof will be placed. Does not affect --prof. --cpu-prof-interval=... specified sampling interval in microseconds for the V8 CPU profile generated with --cpu-prof. (default: 1000) --cpu-prof-name=... specified file name of the V8 CPU profile generated with --cpu-prof --diagnostic-dir=... set dir for all output files (default: current working directory) --disable-proto=... disable Object.prototype.__proto__ --disable-sigusr1 Disable inspector thread to be listening for SIGUSR1 signal --disable-warning=... silence specific process warnings --disable-wasm-trap-handler Disable trap-handler-based WebAssembly bound checks. V8 will insert inline bound checks when compiling WebAssembly which may slow down performance. --disallow-code-generation-from-strings disallow eval and friends --dns-result-order=... set default value of verbatim in dns.lookup. Options are 'ipv4first' (IPv4 addresses are placed before IPv6 addresses) 'ipv6first' (IPv6 addresses are placed before IPv4 addresses) 'verbatim' (addresses are in the order the DNS resolver returned) --enable-etw-stack-walking provides heap data to ETW Windows native tracing --enable-fips enable FIPS crypto at startup --enable-source-maps Source Map V3 support for stack traces --entry-url Treat the entrypoint as a URL --env-file=... set environment variables from supplied file --env-file-if-exists=... set environment variables from supplied file -e, --eval=... evaluate script --experimental-addon-modules experimental import support for addons --experimental-async-context-frame Improve AsyncLocalStorage performance with AsyncContextFrame --experimental-config-file=... set config file from supplied file --experimental-default-config-file set config file from default config file --experimental-default-type=... set module system to use by default --experimental-eventsource experimental EventSource API --experimental-import-meta-resolve experimental ES Module import.meta.resolve() parentURL support --experimental-inspector-network-resource experimental load network resources via the inspector --loader, --experimental-loader=... use the specified module as a custom loader --experimental-network-inspection experimental network inspection support --experimental-print-required-tla Print pending top-level await. If --experimental-require-module is true, evaluate asynchronous graphs loaded by `require()` but do not run the microtasks, in order to to find and print top-level await in the graph --experimental-sea-config=... Generate a blob that can be embedded into the single executable application --experimental-test-coverage enable code coverage in the test runner --experimental-test-isolation=... configures the type of test isolation used in the test runner --experimental-test-module-mocks enable module mocking in the test runner --experimental-transform-types enable transformation of TypeScript-onlysyntax into JavaScript code --experimental-vm-modules experimental ES Module support in vm module --experimental-webstorage experimental Web Storage API --experimental-worker-inspection experimental worker inspection support --expose-gc expose gc extension --force-context-aware disable loading non-context-aware addons --force-fips force FIPS crypto (cannot be disabled) --force-node-api-uncaught-exceptions-policy enforces 'uncaughtException' event on Node API asynchronous callbacks --frozen-intrinsics experimental frozen intrinsics support --heap-prof Start the V8 heap profiler on start up, and write the heap profile to disk before exit. If --heap-prof-dir is not specified, write the profile to the current working directory. --heap-prof-dir=... Directory where the V8 heap profiles generated by --heap-prof will be placed. --heap-prof-interval=... specified sampling interval in bytes for the V8 heap profile generated with --heap-prof. (default: 512 * 1024) --heap-prof-name=... specified file name of the V8 heap profile generated with --heap-prof --heapsnapshot-near-heap-limit=... Generate heap snapshots whenever V8 is approaching the heap limit. No more than the specified number of heap snapshots will be generated. --heapsnapshot-signal=... Generate heap snapshot on specified signal -h, --help print node command line options (currently set) --huge-max-old-generation-size increase default maximum heap size on machines with 16GB memory or more --icu-data-dir=... set ICU data load path to dir (overrides NODE_ICU_DATA) (note: linked-in ICU data is present) --import=... ES module to preload (option can be repeated) --input-type=... set module type for string input --insecure-http-parser use an insecure HTTP parser that accepts invalid HTTP headers --inspect[=[host:]port] activate inspector on host:port (default: 127.0.0.1:9229) --inspect-brk[=[host:]port] activate inspector on host:port and break at start of user script --debug-port, --inspect-port=[host:]port set host:port for inspector --inspect-publish-uid=... comma separated list of destinations for inspector uid(default: stderr,http) --inspect-wait[=[host:]port] activate inspector on host:port and wait for debugger to be attached -i, --interactive always enter the REPL even if stdin does not appear to be a terminal --interpreted-frames-native-stack help system profilers to translate JavaScript interpreted frames --jitless disable runtime allocation of executable memory --localstorage-file=... file used to persist localStorage data --max-http-header-size=... set the maximum size of HTTP headers (default: 16384 (16KB)) --max-old-space-size-percentage=... set V8's max old space size as a percentage of available memory (e.g., '50%'). Takes precedence over --max-old-space-size. --network-family-autoselection-attempt-timeout=... Sets the default value for the network family autoselection attempt timeout. --no-addons disable loading native addons --no-deprecation silence deprecation warnings --no-experimental-detect-module when ambiguous modules fail to evaluate because they contain ES module syntax, try again to evaluate them as ES modules --no-experimental-fetch experimental Fetch API --no-experimental-global-customevent expose experimental CustomEvent on the global scope --no-experimental-global-navigator expose experimental Navigator API on the global scope --no-experimental-global-webcrypto expose experimental Web Crypto API on the global scope --no-experimental-repl-await experimental await keyword support in REPL --no-experimental-require-module Allow loading synchronous ES Modules in require(). --no-experimental-sqlite experimental node:sqlite module --no-experimental-strip-types Experimental type-stripping for TypeScript files. --no-experimental-websocket experimental WebSocket API --no-extra-info-on-fatal-exception hide extra information on fatal exception that causes exit --no-force-async-hooks-checks disable checks for async_hooks --no-global-search-paths disable global module search paths --enable-network-family-autoselection, --no-network-family-autoselection Disable network address family autodetection algorithm --no-warnings silence all process warnings --node-memory-debug Run with extra debug checks for memory leaks in Node.js itself --openssl-config=... load OpenSSL configuration from the specified file (overrides OPENSSL_CONF) --openssl-legacy-provider enable OpenSSL 3.0 legacy provider --openssl-shared-config enable OpenSSL shared configuration --pending-deprecation emit pending deprecation warnings --experimental-permission, --permission enable the permission system --preserve-symlinks preserve symbolic links when resolving --preserve-symlinks-main preserve symbolic links when resolving the main module -p, --print [...] evaluate script and print result --prof Generate V8 profiler output. --prof-process process V8 profiler output generated using --prof --redirect-warnings=... write warnings to file instead of stderr --report-compact output compact single-line JSON --report-directory, --report-dir=... define custom report pathname. (default: current working directory) --report-exclude-env Exclude environment variables when generating report (default: false) --report-exclude-network exclude network interface diagnostics. (default: false) --report-filename=... define custom report file name. (default: YYYYMMDD.HHMMSS.PID.SEQUENCE#.txt) --report-on-fatalerror generate diagnostic report on fatal (internal) errors --report-on-signal generate diagnostic report upon receiving signals --report-signal=... causes diagnostic report to be produced on provided signal, unsupported in Windows. (default: SIGUSR2) --report-uncaught-exception generate diagnostic report on uncaught exceptions -r, --require=... CommonJS module to preload (option can be repeated) --run=... Run a script specified in package.json --secure-heap=... total size of the OpenSSL secure heap --secure-heap-min=... minimum allocation size from the OpenSSL secure heap --snapshot-blob=... Path to the snapshot blob that's either the result of snapshotbuilding, or the blob that is used to restore the application state --test launch test runner on startup --test-concurrency=... specify test runner concurrency --test-coverage-branches=... the branch coverage minimum threshold --test-coverage-exclude=... exclude files from coverage report that match this glob pattern --test-coverage-functions=... the function coverage minimum threshold --test-coverage-include=... include files in coverage report that match this glob pattern --test-coverage-lines=... the line coverage minimum threshold --test-force-exit force test runner to exit upon completion --test-name-pattern=... run tests whose name matches this regular expression --test-only run tests with 'only' option set --test-reporter=... report test output using the given reporter --test-reporter-destination=... report given reporter to the given destination --test-shard=... run test at specific shard --test-skip-pattern=... run tests whose name do not match this regular expression --test-timeout=... specify test runner timeout --test-update-snapshots regenerate test snapshots --throw-deprecation throw an exception on deprecations --title=... the process title to use on startup --tls-cipher-list=... use an alternative default TLS cipher list --tls-keylog=... log TLS decryption keys to named file for traffic analysis --tls-max-v1.2 set default TLS maximum to TLSv1.2 (default: TLSv1.3) --tls-max-v1.3 set default TLS maximum to TLSv1.3 (default: TLSv1.3) --tls-min-v1.0 set default TLS minimum to TLSv1.0 (default: TLSv1.2) --tls-min-v1.1 set default TLS minimum to TLSv1.1 (default: TLSv1.2) --tls-min-v1.2 set default TLS minimum to TLSv1.2 (default: TLSv1.2) --tls-min-v1.3 set default TLS minimum to TLSv1.3 (default: TLSv1.2) --trace-atomics-wait (deprecated) trace Atomics.wait() operations --trace-deprecation show stack traces on deprecations --trace-env Print accesses to the environment variables --trace-env-js-stack Print accesses to the environment variables and the JavaScript stack trace --trace-env-native-stack Print accesses to the environment variables and the native stack trace --trace-event-categories=... comma separated list of trace event categories to record --trace-event-file-pattern=... Template string specifying the filepath for the trace-events data, it supports ${rotation} and ${pid}. --trace-exit show stack trace when an environment exits --trace-promises show stack traces on promise initialization and resolution --trace-require-module=... Print access to require(esm). Options are 'all' (print all usage) and 'no-node-modules' (excluding usage from the node_modules folder) --trace-sigint enable printing JavaScript stacktrace on SIGINT --trace-sync-io show stack trace when use of sync IO is detected after the first tick --trace-tls prints TLS packet trace information to stderr --trace-uncaught show stack traces for the `throw` behind uncaught exceptions --trace-warnings show stack traces on process warnings --track-heap-objects track heap object allocations for heap snapshots --unhandled-rejections=... define unhandled rejections behavior. Options are 'strict' (always raise an error), 'throw' (raise an error unless 'unhandledRejection' hook is set), 'warn' (log a warning), 'none' (silence warnings), 'warn-with-error-code' (log a warning and set exit code 1 unless 'unhandledRejection' hook is set). (default: throw) --use-bundled-ca use bundled CA store --use-env-proxy parse proxy settings from HTTP_PROXY/HTTPS_PROXY/NO_PROXYenvironment variables and apply the setting in global HTTP/HTTPS clients --use-largepages=... Map the Node.js static code to large pages. Options are 'off' (the default value, meaning do not map), 'on' (map and ignore failure, reporting it to stderr), or 'silent' (map and silently ignore failure) --use-openssl-ca use OpenSSL's default CA store (default) --use-system-ca use system's CA store --v8-options print V8 command line options --v8-pool-size=... set V8's thread pool size -v, --version print Node.js version --watch run in watch mode --watch-kill-signal=... kill signal to send to the process on watch mode restarts(default: SIGTERM) --watch-path=... path to watch --watch-preserve-output preserve outputs on watch mode restart --zero-fill-buffers automatically zero-fill all newly allocated Buffer and SlowBuffer instances Environment variables: FORCE_COLOR when set to 'true', 1, 2, 3, or an empty string causes NO_COLOR and NODE_DISABLE_COLORS to be ignored. NO_COLOR Alias for NODE_DISABLE_COLORS NODE_DEBUG ','-separated list of core modules that should print debug information NODE_DEBUG_NATIVE ','-separated list of C++ core debug categories that should print debug output NODE_DISABLE_COLORS set to 1 to disable colors in the REPL NODE_EXTRA_CA_CERTS path to additional CA certificates file. Only read once during process startup. NODE_NO_WARNINGS set to 1 to silence process warnings NODE_PATH ':'-separated list of directories prefixed to the module search path NODE_PENDING_DEPRECATION set to 1 to emit pending deprecation warnings NODE_PENDING_PIPE_INSTANCES set the number of pending pipe instance handles on Windows NODE_PRESERVE_SYMLINKS set to 1 to preserve symbolic links when resolving and caching modules NODE_REDIRECT_WARNINGS write warnings to path instead of stderr NODE_REPL_EXTERNAL_MODULE path to a Node.js module which will be loaded in place of the built-in REPL NODE_REPL_HISTORY path to the persistent REPL history file NODE_SKIP_PLATFORM_CHECK set to 1 to skip the check for a supported platform during Node.js startup NODE_TLS_REJECT_UNAUTHORIZED set to 0 to disable TLS certificate validation NODE_V8_COVERAGE directory to output v8 coverage JSON to TZ specify the timezone configuration UV_THREADPOOL_SIZE sets the number of threads used in libuv's threadpool Documentation can be found at https://nodejs.org/