Updated: October 2026
A Blooket code is the 7-digit Game ID a teacher generates when they host a Blooket game. Students enter it at play.blooket.com to join. The code is temporary — it works only while the host keeps that game session open, and it changes every time the teacher starts a new session.
That’s the headline. Below is where codes come from, where they go, and what to do when a Blooket code doesn’t work.
Open Blooket to enter a code: https://play.blooket.com/play
Blooket code at a glance
The common path takes seven seconds:
- Open play.blooket.com in any browser
- Type the 7-digit Blooket code the teacher shared
- Enter a nickname (or accept a generated one)
- Pick a Blook
- Tap Join
If the code doesn’t work, the troubleshooting section further down covers the common failures.
What a Blooket code actually is
A Blooket code is a 7-digit number — digits only, no letters, no symbols. It’s generated automatically when a teacher clicks Host on a question set, and it stays valid only while that game session remains open. The moment the host ends the game, the code expires. It won’t come back, even if the same teacher hosts the same question set again — the next session gets a brand-new code.
Two things about a Blooket code are worth knowing:
- It’s temporary. Game IDs are usually shared directly by the teacher or host and work only while that session remains open.
- It’s device-agnostic. Chromebook, iPhone, Android, laptop — the same code works on any device that can open a browser.
How to use a Blooket code
The core flow is the quick answer above, and the full step-by-step is in our Blooket Join guide. Three reminders that trip students up the most:
- The URL is play.blooket.com — not blooket.com. Blooket.com is the main site for accounts and hosting; the join screen lives on the play subdomain.
- You don’t need a Blooket account to join a live game. Logged-in students can earn experience points and tokens when the host allows student accounts, but guest joining with just a code works the same way.
- A nickname can be typed, or Blooket will assign one automatically if the host has Random Names turned on.
For a broader walkthrough of all three ways to play — live, solo, and homework — see our Blooket Play guide.
The three ways to use a Blooket code
Entering the code manually is the most common method, but there are three total:
| Method | How it works | Best for |
|---|---|---|
| Manual entry | Type the 7-digit code at play.blooket.com | All devices |
| QR code scan | Teacher displays a QR; scan with the phone camera | Mobile and tablets |
| Direct join link | Teacher shares a URL; one click opens the lobby | Remote or virtual live classes |
All three deliver students to the same lobby. The QR code encodes the same Game ID, and the direct link bakes it into a URL that looks like play.blooket.com/play?id=XXXXXXX.
How teachers generate a Blooket code
If you’re a teacher — or a student curious how the code system works — here’s what happens on the host side.
- Go to Blooket.com and sign in to your teacher account.
- Go to Sets and either choose an existing question set or create a new one from the Blooket Dashboard
- Click Host on the set
- Choose a game mode
- Configure the settings — timer, player limits, Allow Late Joining, Random Names
- Click Host Now
At the final step, Blooket generates three things at once: a 7-digit Game ID, a QR code, and a direct join link. All three point to the same session. Share whichever is easiest — the QR for a classroom projector, the direct link for Google Classroom or Teams, the Game ID when students are reading from the whiteboard.
Allow Late Joining is enabled by default when you create a game, which means students who type the code after the first question is already live will still land in the game. Turn it off before you hit Host Now if you’d rather lock the lobby after the first question appears. The full host workflow, including every setting and homework setup, is in our Blooket Host guide.
Live Game ID vs Homework Link
Students often mix these up. They aren’t the same thing.
A live Blooket code (the 7-digit Game ID) connects you to a real-time session. The game runs when the host says it runs, you compete with other students in the lobby, and the code expires when the host ends the session.
A homework link or QR code connects you to an assignment with a due date. Homework isn’t accessed with a 7-digit Game ID — it’s accessed with the link or QR code the teacher shared. You play solo-style at your own pace, your results get recorded, and teachers can view homework results and student performance in their Blooket reports.
Homework assignments have deadlines set by the teacher. On the Starter (free) plan, deadlines can be set up to 14 days ahead. Blooket Plus extends this to up to 365 days. The due date controls how long the assignment stays open — the link closes once the date passes.
When a Blooket code isn’t working
Most failed joins come down to a handful of causes.
“Invalid Code” error. Usually a typo — a 1 vs 7 or 0 vs 6 mix-up is the most common cause. Re-check the digits first. If they look right, the game has probably ended; codes expire the moment the host closes the lobby. Ask for a fresh code.
Code accepted but game won’t load. Try a current version of Chrome, refresh the page, and re-enter the code. If other sites load but Blooket doesn’t, the problem is usually downstream — see the next two causes.
Browser extensions blocking the request. Ad blockers and strict privacy extensions sometimes break the scripts Blooket uses to validate a code or load the lobby. If the Join button spins forever, disable extensions for play.blooket.com or try an incognito window where extensions are usually off by default.
Firewall allow-list. Blooket uses Firebase for real-time game state. Strict school firewalls may need to allow firebaseio.com alongside blooket.com for games to connect properly. IT can add this to the allow-list.
QR code won’t scan. The QR image is too small on the display, or the camera is struggling to focus. Move closer to the screen, or ask the teacher to enlarge it on the projector.
Starter vs Blooket Plus
Blooket Plus is the paid tier aimed primarily at teachers. The main differences:
| Feature | Blooket Starter | Blooket Plus |
|---|---|---|
| Live player limit | Up to 60 players | Up to 300 players in eligible modes |
| Game modes | Core modes | Includes Plus-only game modes |
| Reports | Standard reports | Enhanced reports and individual breakdowns |
| Homework deadline | Up to 14 days | Up to 365 days |
Starter covers most classrooms. Plus is worth considering for larger classes, longer homework windows, or deep per-student analytics.
Is it safe to use a Blooket code?
Using a code from your teacher is safe. The join flow collects no personal information from guests — just a nickname and a Blook — and there’s no in-game chat, so no stranger can message you during the session.
Avoid third-party code directories, bots, auto-answer tools, and token-generator sites. They are not official Blooket tools and may put your account or device at risk. Enter Game IDs only at play.blooket.com and use links or QR codes shared by your teacher. For a deeper breakdown of which Blooket “hacks” are legitimate strategy versus which are traps, see our Blooket Hacks guide.
Frequently asked questions
Do I need a Blooket account to use a game code?
No. Guest joining with just a code and a nickname works for live games. Logging in before joining lets you earn experience points and tokens when the host allows student accounts — the free account setup is covered in our Blooket Login guide.
How long does a Blooket code last?
A live Blooket code is active only while the host keeps that game session open. Once the host ends the game, the code expires immediately. Homework links or QR codes stay valid until the due date the teacher set.
Can I use the same Blooket code twice?
No. Each code is tied to one specific session. Even if the teacher hosts the same question set again, Blooket generates a brand-new code for every new session.
Where do I find a Blooket code?
From the host directly — written on the board, posted in Google Classroom, dropped in a Teams or Zoom chat, or displayed on a projector. Game IDs are usually shared directly by the teacher or host and work only while that session remains open.
Is a Blooket code letters or numbers?
Numbers only. A live game code is 7 digits with no letters or symbols. If what you’re typing has letters, you’re looking at the wrong value.
Can the teacher see when I join with a code?
Yes. The host sees players in the lobby by their nickname and can remove players from the session if needed.
What is the maximum number of players in a Blooket game?
The Starter plan supports up to 60 players per live game. Blooket Plus raises this to up to 300 for eligible modes.
Can I join a Blooket game on my phone?
Yes. Blooket works fully in any mobile browser on Android or iOS — Chrome and Safari both work. No app install needed.
What happens if I enter the wrong code?
You’ll see an “Invalid Code” error and the game won’t load. Double-check the digits and re-enter. If it still fails, confirm with the host that the game is still open.
Closing
A Blooket code is the shortest possible way into a classroom game — 7 digits, one URL, a nickname, done. The reasons it fails are small in number: a mistyped digit, a session that already ended, a browser extension in the way, a school firewall missing an allow-list entry. Everything in this guide points at one of those.