Dart is a Googleâbacked, openâsource language that powers Flutter, web, desktop, and serverâside apps.
When youâre working on a project, you often need to confirm which Dart SDK youâre actually usingâespecially if the project depends on a particular version or youâre debugging compatibility issues.
The quickest way to find out is to ask the SDK itself. Open a terminal (or PowerShell) and run:
dart --versionYouâll get an output that looks something like this:
Dart SDK version: 2.13.4 (stable) on "macos-x64"đ What the Output Means
| Field | Example | Explanation |
|---|---|---|
Dart SDK version | 2.13.4 | The threeâpart semanticâversion string: major.minor.patch. |
| Channel | (stable) | Indicates whether the SDK came from the stable, beta, or dev release channel. |
| Platform | "macos-x64" | The OS and architecture on which Dart is running. |
Why it matters
- Stable releases are productionâready and receive security patches every three months.
- Beta gives you a taste of upcoming features a month in advance.
- Dev is the bleedingâedge channel with nightly builds that may contain breaking changes.
đ§ QuickâStart Cheat Sheet
| Command | What it does |
|---|---|
dart --version | Shows the current SDK version. |
dart --help | Prints a short help page with all CLI options. |
dart --verbose | Enables debug output (useful when diagnosing startup issues). |
If youâre on Windows, you might need to run dart.exe instead of dart depending on how you installed the SDK.
đ UseâCase Scenarios
| Scenario | Why you need the version |
|---|---|
| Project portability | Pin a specific SDK in your CI/CD pipeline to avoid accidental upgrades. |
| Dependency resolution | Some Flutter plugins require a minimum Dart version. |
| Troubleshooting | Verify that the SDK you think youâre using is the one the IDE is pointing at. |
â ď¸ Common Pitfalls
| Issue | Fix |
|---|---|
| Command not found | Ensure that dart is in your systemâs PATH. On macOS/Linux you can add export PATH="$PATH:$HOME/.pub-cache/bin" to your shell profile. |
| Wrong SDK version | If multiple Dart SDKs are installed, the terminal may pick the wrong one. Use the full path to the binary or adjust PATH order. |
𧊠Extending the Command
You can combine dart --version with shell scripting to automate checks. For example, on a CI pipeline:
EXPECTED="2.13.4"
ACTUAL=$(dart --version | awk '{print $4}' | tr -d '()')
if [ "$ACTUAL" != "$EXPECTED" ]; then
echo "â Dart version mismatch: expected $EXPECTED, got $ACTUAL"
exit 1
fiFAQ
| Question | Answer |
|---|---|
| Do I need to restart the terminal after installing Dart? | Usually yes, because the PATH changes are only applied to new shells. |
| How do I switch channels? | Use the `dart channel <stable |
| Can I check the channel without upgrading? | Yes, the output of dart --version already tells you. |
đ Wrapâup
Getting the Dart SDK version is a oneâliner that saves you time, especially when youâre juggling multiple projects or maintaining a shared codebase. Keep the command handy, and youâll avoid a lot of âit worked on my machineâ headaches.
Happy coding! đ
