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Refactor Code.

Verify It's Safe
Ship With Confidence.

Refactron safely refactors and modernizes legacy code with AI-assisted, behavior-preserving refactoring and built-in verification.

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Used by developers from

  • UST
  • SalesforceSalesforce
  • KPIT
  • AccentureAccenture
  • PyPi
  • Github
  • Open Source Community

Everything you need to refactor production code safely.

AI-assisted, behavior-preserving refactoring with verification, rollback, and documentation built in.

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Deep Analysis

Refactron scans your architecture, detects technical debt, and prioritizes risk instantly—without altering a single line of code.

❯ refactron analyze . --detailed
✓ Analyzing myproject/
Files analyzed: 25
Issues found: 12
CRITICAL (2):
- SQL injection vulnerability (line 45)
- Hardcoded secret detected (line 78)
ERROR (4):
- High cyclomatic complexity (line 120)
- Deep nesting detected (line 156)

Safe Autofix

Refactron doesn't just guess. It understands your context across files and generates clean, pythonic syntaxes that are guaranteed to preserve origin behavior.

myfile.py
# Preview changes first❯ refactron refactor myfile.py --preview
- def proc_pmt(d, usr):
-   if d.get('amt') > 0:
-     return usr.charge(d['amt'])
+ def process_payment(data: dict, user: User) -> bool:
+   amount = data.get('amount', 0)
+   if amount > 0:
+     return user.charge(amount)
+   return False

Provable Verification

Every change passes syntax validation, import integrity checks, and your existing test suite before a single file is modified. If anything fails, the original file is never touched. refactron report and refactron rollback. Never push broken code again.

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Verified

Built to Verify, Fix, and Stay in Control.

Verify before write. Fix what matters. Stay in control.

🛡
✔ Syntax✔ Imports✔ Tests

Verification Before Every Write

Security scan✔
Complexity✔
SQL injectionCRIT
Dead code14 fixed
Type hints—

Finds Real Issues. Fixes Them Automatically.

payments/service.py
-  def process():
+  def process():
+    validate_payment(...)
+ def validate_payment(...):
⚠ High risk — Apply? [y/N]: _

You Review. You Approve. You Rollback.

Simple pricing. Scale when you’re ready.

Start free. Pay when Refactron starts saving real engineering time.

Free (Community)

$0

For individual developers & evaluation

  • Local analysis & refactor suggestions
  • Safe-mode refactoring
  • Git diffs & reports
  • Open-source & personal use
Most Popular

Pro (Teams)

$20/ developer / month

For growing engineering teams

14-Day Free Trial
  • Everything in Free
  • Autofix with verification
  • Metrics & maintainability reports
  • CI/CD integration
  • Priority updates

Enterprise

Custom

For production & regulated environments

  • Everything in Pro
  • On-prem / private deployments
  • Advanced verification controls
  • Audit logs & compliance support
  • Dedicated support

Frequently Asked Questions

Everything you need to know about Refactron.

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