Introducing Stride
Stride is a free, calm place to learn Maths, Python and Java at your own pace, with a small guide called Pip. No account, no ads, no tracking.
October 21, 2026 ยท Product
Learning to code or brushing up on maths usually means picking between two bad options: long video courses you drift away from, or apps built around streaks, points and pressure.
Stride sits somewhere in between. It is a set of interactive learning journeys you work through one step at a time, in your browser, with nothing to sign up for.
Three subjects, one journey
Stride covers Maths, Python and Java. Each subject is laid out as a single vertical journey, so you can always see where you have been and what comes next. Lessons are short and hands-on: read an idea, try it, check it, move on.
If you are stuck, there is an "I'm not sure" option instead of a wrong-answer penalty.
Progress that means something
Most learning apps show a percentage and call it mastery. Stride does not. It tracks learning evidence instead: a topic moves from introduced, to practised, to used on your own in two different lesson checks.
That is a smaller claim than a mastery score, and a more honest one. It tells you what you have actually done, not what an algorithm guesses you know.
Try it on a made-up topic. Move it through the steps, or say you are not sure.
Meet Pip
Pip is Stride's guide. It welcomes you when you first arrive, asks what to call you and what you want to learn, and stays in the corner of every lesson if you want a hand.
You can also chat with Pip directly about Maths, Python or Java. Pip is an AI, so it can be wrong, and Stride treats its answers as a study aid rather than the final word. If the AI service is unavailable, Pip falls back to built-in hints that send nothing anywhere.
A playground for real code
The Playground is a scratchpad for trying Python and Java outside the lessons. Write something, press Run, and see the output. Drafts are saved with the rest of your progress, and Pip can look at your code and the error from your last run if you ask.
Focus when you need it
A built-in Pomodoro timer keeps sessions short and steady. Choose 15, 25 or 50 minutes, take short and long breaks, and watch your focus sessions add up. It is optional, and it stays out of the way until you open it.
Private by default
Stride has no accounts, no cookies, no ads and no analytics. Your learning space lives in your own browser, and nothing leaves it unless you use a feature that needs to.
| What | Where it goes |
|---|---|
| Your profile, progress, streak, timer and code drafts | Your browser only |
| Messages to Pip | Through Stride's server to an AI provider (Groq). Chats are not saved |
| Code you run | The public Wandbox service, only when you press Run |
| Sync, if you turn it on | Encrypted on your device first. Stride cannot read it |
Your name and goal are optional, and Stride works without them. The legal and privacy page explains all of it in plain language.
Take it with you
Because there is no account, Stride gives you two ways to move between devices:
- Sync. Turn it on and Stride creates a private sync code. Your progress is encrypted in the browser before it is stored, so only someone with that code can read it.
- Progress codes. Create a code to copy or download, then paste it on another device to preview and restore your learning space.
Keep either code somewhere safe. Without an account, there is no password reset.
Try it
Stride is free and runs in any modern browser, on desktop or phone. Open stride.crooli.com, tell Pip your name if you like, and take your first step.
If you are learning to code with AI on the side, our Academy courses on how LLMs work and prompting pair well with it.