Crack the hidden 4-peg color code in 10 guesses or fewer. Black pegs mean right color, right spot; white pegs mean right color, wrong spot.
⚫ = right color, right position ⚪ = right color, wrong position
简介与使用方法
Discover how Mastermind executes your workflow locally in your browser with zero server uploads and total privacy.
Mastermind on Neranjan Tools is an ultra-fast, client-side utility crafted to deliver professional-grade processing without the privacy risks or upload delays of traditional cloud services. Whether handling sensitive business contracts, personal photos, or code snippets, you can accomplish your task in seconds.
Unlike conventional web converters that upload your confidential files to remote third-party servers, this tool operates 100% inside your browser's local sandbox using HTML5 Canvas, WebAssembly, and modern JavaScript engines. Your files are loaded into your device's memory, processed instantly by your local CPU and GPU, and saved directly to your disk, ensuring zero data leaks, zero server logging, and immunity to malware execution.
分步使用指南
Click Start
Press Start and the game secretly picks a hidden sequence of 4 pegs from 6 possible colors (colors can repeat).
Make a Guess
Select 4 colors in order to form your guess, then submit it.
Read the Feedback
A black peg means a color is correct and in the right position; a white peg means a color is correct but in the wrong position. Use this feedback to narrow down the code within 10 guesses.
零服务器存储
Files never leave your device. Complete immunity from server breaches or data leaks.
即时处理
Immediate processing powered by your local device hardware with zero upload wait times.
支持所有设备
Works smoothly on iOS, Android, macOS, Windows, and Linux across all modern browsers.
永久 100% 免费
No hidden subscriptions, no credit card forms, and unlimited free daily usage.
100% 本地处理，隐私保护承诺
Neranjan Tools guarantees that Mastermind processes your data purely in your browser memory. We never store, log, or inspect your files, protecting you fully against virus uploads and data breaches.
常见问题 (10)
关于此工具的常见问题解答。
反馈与评论 (0)
分享你的想法... Mastermind. All comments are moderated for spam prevention.
发表评价或评论
相关工具 Games
查看全部 Games →Word Guessing Game
Fast, free online Word Guessing Game tool. Works 100% in your browser with zero storage.
Word Scramble
Fast, free online Word Scramble tool. Works 100% in your browser with zero storage.
Word Search
Fast, free online Word Search tool. Works 100% in your browser with zero storage.
Crossword Puzzle
Fast, free online Crossword Puzzle tool. Works 100% in your browser with zero storage.
Hangman
Fast, free online Hangman tool. Works 100% in your browser with zero storage.
Word Typing Game
Fast, free online Word Typing Game tool. Works 100% in your browser with zero storage.