Sub plans fail when they assume prep, logins, or knowing the class. LexiClash assumes none of it. A substitute projects a 4-digit code, students join on any device with no account, and a live word game runs from a built-in list — zero prep, zero login, zero roster. It holds a class better than a worksheet, keeps things academic (real spelling and vocabulary practice), and scales from a five-minute filler to most of a period when plans fall through. Free, browser-based, and reliable in a room the sub has never seen.
Built-in word lists mean a sub starts a real game with zero preparation. The emergency plan that works when nothing was left.
A 4-digit join code means the sub doesn’t need accounts, names, or a seating chart — students just join and play.
Browser only — Chromebooks, tablets, phones, the room’s laptops. Nothing to install in an unfamiliar room.
Live, competitive word rounds hold attention far better than a worksheet — fewer behavior problems on a sub day.
Students practice spelling and vocabulary, so the regular teacher comes back to learning, not lost time.
Run one round as a filler or several back-to-back when plans fall through and you need most of a period covered.
No prep needed — pick a ready word list and a time limit.
Students type the 4-digit code on any device. No accounts, no names needed.
Run one round as a filler or several to cover the period. Live leaderboard keeps focus.
Leaving a sub plan? Drop the LexiClash join link and a word list in your sub notes. Your students get academic word practice instead of a movie or busywork, the sub gets a plan that can't fail, and you come back to a class that actually reviewed vocabulary while you were out — no make-up grading, no chaos to clean up.
Bookmark it now and it's ready for any sub day — yours or someone else's. No signup, no install, no credit card. Project a code and the room is playing in under a minute.