Learn to Build with AI
Free tools we build and ship: 4K screen recording in Chrome with no watermark, an AI app maker for your phone, offline voice-to-text, and live one-to-one AI lessons.
Screen Recorder Pro
Record your screen, a tab, system audio, and your camera in 4K with one click. No watermark, no sign-up, and nothing is uploaded — every recording stays on your device.
Notes: Transcribe Unlimited
Unlimited offline voice-to-text. Speech recognition runs entirely on your phone, so no audio ever leaves it.
Get it on Google Play ↗
Neyse AI App Builder
Describe the app you need in plain language and Neyse builds it on your phone. No code and no computer — Neyse runs on iPhone and Android only.
Lessons, extensions, and packages
Live one-to-one classes plus the developer tools we ship to VS Code and PyPI.
Machine Learning & AI Lessons
Expert-led one-to-one classes. Fill in the form if you are interested in setting up classes and we will reply from info@lessontime.ai.
Breakpoint Python
Add native breakpoints to Python running in the terminal, where VS Code breakpoints don't reach.
codeplots
Tiny matplotlib shortcuts for plotting from VS Code, built for remote SSH work.
On-device AI in your browser
Language models and speech recognition that download once, then run with no server.
JARVIS
A language model that runs on your phone. Downloads once, then answers offline.
Gemma 3 1B
Chat with Google's Gemma 3 1B in your browser via WebGPU. Cached after one download.
Qwen 2.5
Run Qwen 2.5 0.5B fully on-device in the browser, with no server round trip.
LFM2.5
Chat with Liquid AI's LFM2.5-350M over WebGPU. Nothing leaves your browser.
LLM7 Chat
Free OpenAI-compatible inference in the browser. No API key required.
Whisper Mic
Free voice transcription in your browser using Whisper, with no server.
Moonshine Web
Real-time in-browser speech recognition powered by the Moonshine model.
Moonshine Notes
Moonshine speech-to-text notes that run fully in your browser.
Spraak
Dutch voice notes, transcribed on your device and working offline after one download.
Free screen recorders
Record your screen in 4K with audio and camera — in Chrome or straight from the browser. No watermark, no sign-up, nothing uploaded.
Screen Recorder Pro for Chrome
4K screen, tab, system audio, and camera recording in one click. Free, no watermark, and every recording stays on your device.
Screen Recorder
Free online screen recorder: capture your screen and voice in the browser and save as MP4. No install, no account.
Screen Recorder Pro (Web)
The 4K recorder with the face mesh overlay, running in a browser tab with nothing to install.
Screen Recorder + Face Mesh
Record your screen and voice with a face mesh overlay in place of a raw webcam feed, so you stay on camera without showing your face.
Slow Motion Animator
Create smooth slow-motion animations right in your browser.
Games
Free browser games, several playable with a friend in real time.
Data Fighter
A space data galaxy game. Battle the AI or another human.
Data Hunter
An interactive multiplayer data collection game.
Data Hunter 2
Real-time multiplayer position sharing, improved.
Data Hunter 3
A star field game with bases and scoring.
BlockGame
A fullscreen block game you can play instantly.
Logograph
A logic graph puzzle game.
Mouse and Cat Chase
A quick browser game of cat and mouse.
Mission Hub
A real-time multiplayer mission control experience.
Camera and face experiments
Face mesh video chat and detection demos built on MediaPipe.
SmilePass
A face-detection check-in experiment that runs in the browser.
MeshyFace
Privacy-preserving video chat that sends a face mesh instead of your camera feed.
Face 2 Face
Real-time face mesh communication, second experiment.
Peer Face Mesh + Audio
Peer-to-peer face mesh rooms with audio.
MeshyFace 4
Peer-to-peer face mesh with privacy preserved end to end.
Peer-to-peer chat
WebRTC messaging that connects two browsers directly.
WebRTC Chat
Peer-to-peer chat that connects browsers directly, with no server storage.
ChatChat
Peer-to-peer chat rooms. Messages go browser to browser and are never stored.
PeerChat
A PeerJS demo of direct browser-to-browser messaging.
Everyday web tools
Small single-purpose apps that open instantly.
Draw
A simple fullscreen drawing canvas in your browser.
Kindle Drawing Board
A minimal drawing board built for Kindle and e-ink browsers.
To-Do List
A simple to-do list that saves your tasks locally.
The Market List
A shopping and market list app that runs in the browser.
PocketOS
A desktop-style operating system experience in a browser tab.
Satellite Viewer
Enter a latitude and longitude to view satellite imagery instantly.
Piano Recorder
Play a virtual piano in your browser and record your melodies.
Ottoman Pattern Editor
Create and edit traditional Ottoman geometric patterns.
Interactive Science
Interactive science demos and visual experiments for learning.
Questions we get asked
Short answers about the recorder, the apps, and the lessons. See the full FAQ.
Is Screen Recorder Pro free?
Yes. Installing Screen Recorder Pro from the Chrome Web Store and recording your screen is free, with no watermark on the video and no account to create. Optional in-app purchases unlock the Pro extras such as audio-only capture and the face mesh overlay.
Can I record my screen in 4K with audio?
Yes. Screen Recorder Pro captures the full screen, a single tab, or one window at up to 4K, together with system audio and your microphone, and saves the result as a video file you can share or edit.
Where do my recordings go?
They stay on your computer. Recording runs entirely in your browser and nothing is uploaded to our servers, so screen shares of private work, student sessions, or customer calls never leave your machine.
Do I have to install anything to record my screen?
No. The browser screen recorder and Screen Recorder Pro on the web run in a tab with nothing to install. The Chrome extension adds one-click recording from the toolbar and the camera and face mesh options.
Can I record my face without showing my webcam?
Yes. The face mesh mode draws a live mesh of your expressions over the recording instead of your camera feed, so viewers still see you react while your room and appearance stay private.
What devices does Neyse run on?
Neyse is a mobile app: it runs on iPhone and Android only, not in a desktop browser. Describe the app you want and Neyse writes and runs it on your phone, with the first three app generations free.
Do you teach AI and machine learning one to one?
Yes. We run expert-led one-to-one classes on machine learning, generative AI, and computer science from Fishers, Indiana, online and in person around Fishers, Carmel, Noblesville, and Indianapolis. Send the form and we reply from info@lessontime.ai.
More from LessonTime.AI
Writing, answers, and the people behind the apps.