// Practice engine for technical skills
Practice real skills.
Graded for real.
Pick a skill, drop into a live in-browser playground, and write real code that is graded the moment you hit Run. No videos. No multiple choice - just the real thing, checked by running it.
Free while we're in beta.
-- customers with more than 2 orders
SELECT c.name
FROM customers c
JOIN orders o ON o.customer_id = c.id
GROUP BY c.id
HAVING COUNT(*) > 2;// Why Prepshotz
Three things, and no one else has all three.
Built around your goal
Practice the skill you actually want to get good at, sequenced so each step builds on the last.
You write real code, graded for real
Your code runs. The output or the tests decide if you got it. No opinions, no multiple choice.
It adapts to your mistakes
It watches how you fail, from your actual runs, and brings back exactly what you keep getting wrong.
The write-real-code-then-graded-by-running-it loop is live today, starting with SQL. Building a track around your goal and adapting to your mistakes are rolling out during the beta.
// The loop
This is the whole product.
Read the task
A clear prompt and the tables you're working with.
Write real code
A proper editor - the engine behind VS Code, not a text box.
Run
Your code executes in your browser. Nothing to install.
Graded for real
Checked by running it - the output or the tests decide.
Everything else is in service of this loop. See how it works in detail →
// Not another course site
Why it's different.
| Capability | Watch-a-video courses | ChatGPT | Fixed practice sites | Prepshotz |
|---|---|---|---|---|
| You write real code | Rarely | Sometimes | Yes | Yes |
| Graded by running it | No | No | Yes | Yes |
| Built around your goal | No | Yes | No | Yes |
| Remembers your weak spots | No | No | No | Yes (rolling out) |
Prepshotz is the only one that does all four - build the path, run and grade your real work, and adapt to your mistakes.
// Skills
Start with SQL today.
Python, JavaScript, and more are rolling out during the beta.
// Beta
Free while we build it in the open.
Prepshotz is in beta, so everything is free right now. You get the full practice loop, new skills as they land, and a direct line to shape what gets built next.
Start free// Questions
The quick ones.
Is Prepshotz free?
Yes - it's free while we're in beta.
What can I practice right now?
SQL is live today. Python, JavaScript and more are rolling out during the beta.
Do I need to install anything?
No. Everything runs in your browser - you write code and it's graded right there.
How is this different from ChatGPT?
ChatGPT explains, but it can't run your code against real tests or remember what you keep getting wrong. Prepshotz does both.