Lans Cloud - Classroom Tools is a collection of 48 single-purpose web-based utilities designed for classroom management, teaching, and event use. The tools run entirely in the user's browser without requiring sign-ups, account creation, or software installations. They are mobile-friendly and include ad-free fullscreen presentation modes optimized for projectors and smartboards. The primary function is to provide teachers, presenters, and event organizers with quick, accessible digital tools that perform specific tasks such as random selection, timing, scoring, and formatting. The suite includes a spin the wheel random picker, a random team picker, a JSON formatter, and an escape room cipher generator that encodes secret messages with multiple ciphers and prints clue cards with a game master answer key. Other tools encompass a cipher encoder and decoder that shows step by step transformations for Caesar, ROT13, Atbash, A1Z26, Morse, Vigenere, and keyword substitution; a brain break generator with 60 curated zero prep classroom activities filterable by calm or energize and time or space constraints; a station rotation timer for classroom centers that displays groups and stations with a countdown, chime, and automatic rotation; and a classroom jobs chart generator that creates mathematically fair rotations where every student performs every job. Additional tools include a random seating chart generator with three room layouts (rows, groups or pods, horseshoe) and rules for separation and pinning; an exam clock showing start and finish times with live time remaining and one click extra time rows; a reading fluency timer for one minute probes or passage timing with words correct per minute and grade level benchmarks; a multiplication timed test with division, addition, and subtraction modes and fact families from 1 to 12; a spelling test practice that reads words aloud and provides instant feedback; a classroom noise level meter with a live traffic light driven by microphone input and adjustable thresholds; a scoreboard for up to 12 color coded teams with point buttons and live rankings; a test grade calculator; a random number generator; and a dice roller supporting standard and custom dice up to 100 sides. Typical use cases include running classroom games and activities, organizing group work, timing exams and rotations, generating fair seating and job assignments, practicing math and spelling skills, monitoring noise levels, and encoding or decoding secret messages for educational escape rooms. Workflow is straightforward: users navigate to the desired tool, configure any options (such as entering a class list, selecting fact families, or setting timer durations), and then use the tool in real time on a display or projector. Many tools offer fullscreen mode to eliminate advertisements and distractions during use. Technically, all processing occurs client side in the browser, and no data is uploaded to any server. No personal information, recordings, or uploaded content are stored or transmitted by the tools.