Find the code
that's costing you most
DiffScan analyzes your Git history to surface high-churn files before they become architectural debt.
Your codebase is hiding landmines
of bugs come from 4% of files
Research shows a tiny fraction of your codebase causes most production issues. But which files?
of dev time is spent on tech debt
Without visibility into problem areas, teams waste weeks fixing the wrong things.
more likely to fail in high-churn code
Files that change frequently need better architecture, or they become ticking time bombs.
X-ray vision for your codebase
Paste a GitHub URL. Get a ranked list of your riskiest files — with context, contributors, and refactoring recommendations.
Churn Score Ranking
Every file gets a churn score based on commit frequency, change intensity, and contributor count. Highest-risk files rise to the top instantly.
God Class Detection
Spot monolithic files doing too much. Large files with high churn are architectural debt hiding in plain sight.
Actionable Recommendations
Each problem file comes with tailored refactoring suggestions. Know what to fix, why it matters, and where to start.
Three steps to cleaner code
Paste your GitHub URL📋
Just drop in a link to any public or private repository. We'll handle the rest.
Get instant analysis⚡
Our algorithm scans your git history and calculates churn scores for every file in under 60 seconds.
Prioritize & fix🎯
See exactly which files need attention, why they're problematic, and what to do about it.
Try it now — it's free
Analyze any public GitHub repository in seconds
Start free, scale when ready
No credit card required. Upgrade only when you need more power.
Free
- 5 analyses per month
- Up to 100 files per analysis
- Basic reports
- 7 days history
Pro
- 100 analyses per month
- Unlimited files per analysis
- API access
- Team collaboration
- Webhook integrations
- 90 days history
- Priority support
Frequently Asked Questions
Do I need to install anything?
No! DiffScan is fully web-based. Just paste a GitHub URL and we'll analyze it.
Does it work with private repos?
Yes, just connect your GitHub account and we'll have secure read-only access to analyze your private repositories.
How is the churn score calculated?
We analyze commit frequency, change intensity, contributor count, and code instability to produce a weighted score from 0-100.
Can I use this in CI/CD?
Absolutely! Pro plans include API access and webhook integrations for automated analysis on every PR.
Loved by engineering teams
“DiffScan helped us identify the 5 files responsible for 60% of our bugs. After refactoring them, our bug rate dropped by 40%.”
“We use DiffScan in every sprint planning to prioritize tech debt. It's like having X-ray vision for your codebase.”
“The God class detection caught issues our linters missed. Now it's part of our CI pipeline.”
Trusted by teams at
Your Git already knows which code is broken.
DiffScan makes it readable. Join 2,500+ developers shipping cleaner code.
Analyze Your First Repo Free