Blooket Calculator — in your browser
Calculate pack odds, simulate openings, chase blooks, and optimize your token strategy — right from your browser toolbar.
v1.0.0 · Chrome & Chromium browsers · No account needed
What's inside
Pack Odds
Exact probability of pulling Epic+, Legendary, or Chroma from any pack.
Simulator
Open packs virtually — see what you get, sell duplicates, and chain simulations.
Chase Calculator
Target any blook and see how many tokens you need for 50%, 90%, or 99% chance.
Token Grinder
Find the fastest game modes to earn tokens with time estimates per mode.
Value Guide
Browse all blooks with search, rarity filters, and sorting by value or drop rate.
100% Private
No accounts, no data collection, no external API calls. Runs entirely offline.
How to install
No Chrome Web Store account needed. Just 6 simple steps.
- 1
Download the extension
Click the download button below to get the ZIP file.
- 2
Unzip the file
Extract the ZIP to a folder you can find easily (e.g. your Desktop).
- 3
Open Chrome Extensions
Go to chrome://extensions in your address bar (or Menu → Extensions → Manage Extensions).
- 4
Enable Developer Mode
Toggle the "Developer mode" switch in the top-right corner.
- 5
Load the extension
Click "Load unpacked" and select the unzipped folder (the one containing manifest.json).
- 6
Pin it & enjoy!
Click the puzzle piece icon in your toolbar and pin Blooket Calculator for quick access.
Common questions
Is this a hack or cheat?
No. This is a mathematical simulation tool. It does not connect to your Blooket account, modify game data, or give you free tokens.
Why do I see a 'Disable developer mode extensions' warning?
Chrome shows this warning for extensions installed outside the Chrome Web Store. It's safe to dismiss — our extension is open-source and runs entirely offline with no external connections.
Does it work on Firefox or Safari?
Currently Chrome and Chromium browsers only (Edge, Brave, Opera, Arc). Firefox and Safari support may come later.
Is it really free?
Yes, 100% free. No ads, no premium tier, no data collection. Built by calculatorblooket.com for the Blooket community.