# Tongue Twister Online > Tongue Twister Online (https://tonguetwister.online) is a free, 100% client-side web application and video teleprompter designed for speech therapy, English pronunciation mastery, vocal enunciation fitness, and 9:16 vertical video recording for social media (Instagram Reels, YouTube Shorts, and TikTok). ## Core Features & Workflow - [Practice Studio](/practice/easy-1): An in-browser 9:16 vertical video compositor and upward-scrolling teleprompter. Users select word-by-word scroll speeds (0.5x to 5.0x), enable their camera or audio visualizer, practice tricky phrases, and export clean 720x1280 WebM video takes without video editing software. - [Creator Studio Guide](/creator): Comprehensive workflow for content creators, influencers, and teachers producing viral challenge reels with zero manual video editing or caption alignment. - [All Challenges Catalog](/challenges): 641 expertly curated tongue twisters organized into 4 progression tiers: Easy, Medium, Hard, and Extreme. - [Saved Projects](/projects): Quick-access dashboard to bookmark, organize, and practice favorite tongue twisters directly from local browser storage. - [Session History](/history): Private local activity logger displaying practice completion, timestamps, and difficulty progression. ## Challenge Tiers - [Easy Challenges (1-197)](/challenges/easy): Beginner speech exercises focusing on basic phonetic contrasts (e.g., "Red lorry, yellow lorry", "Toy boat"). Ideal for young learners and ESL students building initial muscle memory. - [Medium Challenges (1-197)](/challenges/medium): Intermediate cadence drills focusing on sibilants (/s/, /ʃ/, /z/), plosives (/p/, /b/, /t/, /d/), and vowel alternation. - [Hard Challenges (1-197)](/challenges/hard): Complex multi-syllabic phonetic gauntlets designed for voice actors, broadcasters, speech pathologists, and competitive speakers. - [Extreme Gauntlet (1-50)](/challenges/extreme): 50 intense, unyielding tongue twisters built specifically for streamers, creator duets, and pronunciation challenges. 100% unlocked with zero progression gates. ## Technical Architecture & Privacy Guarantee - **Zero Cloud Uploads**: 100% of video composite rendering, audio analysis, and MediaRecorder operations occur locally within the client's browser (HTML5 Canvas 2D + Web Audio API). - **Zero Server Recording Storage**: User camera streams and microphone audio never touch a backend server or third-party cloud. - **Client-Side Persistence**: Bookmarks and completion states are stored exclusively in the browser's `localStorage`. - **720x1280 9:16 Native Layout**: Automatically formatted for mobile screens and vertical social video platforms. ## Founder & Creator - [About the Creator](/about): Conceived, engineered, and maintained by **Ganpat Mallah** to solve the pain point of practicing English pronunciation and to eliminate manual subtitle editing for viral tongue twister reels. - **Official Social Channels**: - X / Twitter: https://x.com/MallahGanpat - Instagram: https://www.instagram.com/ganpatmallah - LinkedIn: https://www.linkedin.com/in/ganpat-mallah-6b5946331 - Facebook: https://www.facebook.com/share/1ENwm8SJDs/ - Threads: https://www.threads.net/@talent.earns - Direct Email: nsjsjjejr@gmail.com ## Legal & Information - [Privacy Policy](/privacy): Detailed privacy disclosures confirming zero personal data harvesting, zero tracking cookies, and local execution. - [Terms of Service](/terms): Usage terms, intellectual property disclosures, and the founder's project origin story. - [Frequently Asked Questions](/faq): Guidance on microphone setup, browser permissions, scroll pacing, and video export troubleshooting. - [Contact Us](/contact): Direct contact form and official channels for inquiries, partnership requests, and suggestions. ## Extended Documentation - [Full Context & Technical Reference](/llms-full.txt): Comprehensive dataset reference, phonetic sound targeting guide, and deep architectural specs for LLMs and AI researchers.