Building with AI is exciting, but let’s be honest - it can also be unpredictable.
You ask the AI to “make the header blue” and suddenly your entire navigation is restructured. Or you iterate through 10 changes and realize version 3 was actually the best.
Sound familiar?
Today, we’re shipping Version History - your safety net while building with AI.
The Problem
When you’re building an app with AI assistance, things move fast. Really fast. The AI can write hundreds of lines of code in seconds. That’s powerful, but it also means:
- No easy undo – Browser back button won’t save you here
- Lost iterations – That perfect version from 20 minutes ago? Gone
- Fear of experimenting – You hold back because you might break what’s working
We’ve felt this pain ourselves. And we knew there had to be a better way.
The Solution: Checkpoints
Version History works exactly how you’d expect:
1. Save a checkpoint
Click Save whenever you reach a good state. We’ll snapshot your entire codebase—every file, every line.
2. See your history
Click Versions to see all your saved checkpoints. Each one shows the name and when it was created.
3. Restore in one click
Found the version you want? Click Restore. Your files and preview update instantly. It’s like time travel for your code.
4. Rename for clarity
Auto-generated names like “Checkpoint #3” not cutting it? Click the pencil icon to rename it to something meaningful like “Before redesign” or “Working login flow.”
How It Works Under the Hood
For the technically curious:
When you save a checkpoint, we:
1. Package your entire project into a compressed archive
2. Generate a checksum for integrity verification
3. Store it securely in cloud storage
4. Keep metadata for quick listing and retrieval
When you restore:
1. Fetch the archived checkpoint
2. Verify the checksum matches
3. Extract and replace your current files
4. Refresh your preview automatically
It’s fast, reliable, and designed for the rapid iteration that AI-assisted development demands.
Real-World Use Cases
Experimentation without fear
“Let’s see what happens if we completely change the color scheme” – knowing you can restore in seconds.
Client feedback loops
Save before each client review. If they say “actually, I liked it better before,” you’re covered.
Learning and exploration
Try different approaches to the same problem. Compare results. Pick the winner.
Debugging aid
Something broke and you’re not sure when? Restore to earlier checkpoints to find where things went wrong.
What’s Next
This is just the beginning. We’re already thinking about:
- Auto-save checkpoints – Automatic snapshots at key moments
- Checkpoint comparison – See what changed between versions
- Branching – Explore multiple directions simultaneously
- Checkpoint sharing – Share a specific version with teammates
Try It Now
Version History is live for all users. Next time you’re in the studio:
1. Build something you’re happy with
2. Click Save
3. Experiment freely
4. Click Versions → Restore if needed
That’s it. Build boldly. We’ve got your back.
Have feedback on Version History? Reply to this post or reach out on X https://x.com/justcopy_ai. We read everything.
P.S. If you’re not using JustCopy yet, https://justcopy.ai. Describe your app, watch it come to life, and now—save your progress along the way.
