Ship faster without silently changing how your system behaves.
Tests tell you code works. Vokt tells you nothing important changed.
Vokt detects unintended behavior changes across PRs — before they reach production.
Every fast-moving team hits this wall
Your system grows. Logic spreads across services. No single engineer understands all downstream effects.
You ship a change:
- Tests pass
- CI green
- Code review approved
Then weeks later...
Pricing is wrong
Refunds calculated differently
Permissions shifted
Eligibility rules changed
Not because code failed.
Because behavior drifted.
Modern stacks detect syntax errors. They don't detect behavior changes.
Types
Tests
Linting
Performance
Security
Behavior
No layer answers:
"Did this change alter how the system behaves?"
This gap causes expensive production incidents.
Why this matters
Unintended behavior changes lead to real business impact
The damage
- Revenue leakage
- Incorrect payouts
- Compliance risk
- Customer trust loss
- Subtle production bugs
- Slowed velocity
How teams compensate
- Ship slower
- Avoid refactors
- Over-test
- Manual QA
Vokt removes that fear.
What Vokt does
Shows how system behavior changes after every PR
Not just code diffs. Behavior diffs.
Vokt compares what your system did before vs after the change — at the behavioral level, not the syntax level.
Logic changes
Detects when business logic behaves differently
Rule changes
Catches eligibility, pricing, and policy shifts
Workflow differences
Identifies process and flow changes
Side-effect shifts
Spots unintended downstream effects
What you see in a PR
This is what Vokt adds to every PR.
Real examples of what Vokt catches
Nothing broke technically. But behavior changed. That's what Vokt catches.
Developer refactors checkout logic, tests pass
Vokt flags: "Discount eligibility now applies to fewer users"
Team updates date handling library
Vokt flags: "Refund window reduced from 30 to 14 days"
PR cleans up permission checks
Vokt flags: "Admin users no longer have access to billing endpoint"
Where Vokt fits in your workflow
A safety layer between CI and production
IDE
Tests
CI
Vokt
Production
Vokt acts as a safety layer — and it's just as valuable for human-written code as AI-generated code.
"Code diffs show what changed. Vokt shows what it means."
"CI verifies code correctness. Vokt verifies system behavior."
"Refactor boldly. Ship safely."
The cost of one silent regression
One silent regression can cost:
- Weeks of debugging
- Lost revenue
- Customer churn
- Compliance exposure
Vokt helps prevent:
- Subtle business logic bugs
- Unintended rule changes
- Cross-service behavior drift
Result: Faster shipping. Fewer surprises.
How it works
No heavy setup. No rewriting tests.
Connect Vokt to your repo
Open a pull request
Vokt analyzes behavioral impact
Review behavior diffs in the PR
Merge with confidence
Who this is for
Teams where regressions are costly
Fintech & Payments
Insurance
Healthcare
Marketplaces
Pricing Systems
Entitlement/Permissions
Also: large refactor-heavy codebases where behavior must stay consistent.
If a small logic change can cost money or trust, Vokt pays for itself quickly.
Why teams adopt Vokt
Ship faster with confidence
Know that you're not breaking things you can't see
Refactor without fear
Clean up code knowing behavior is preserved
Catch subtle regressions early
Before they reach production
Reduce incident risk
Especially in critical business logic
Make code review smarter
See behavior impact, not just syntax
Move fast safely
Velocity without blind spots
A note about AI-generated code
AI tools increase code velocity. They also increase subtle regressions.
Vokt is the layer that answers: "Are we still behaving the same?"
It's not about AI. It's about complex systems moving fast.
The next layer of software engineering
Software engineering evolved through layers:
The next layer:
Behavior Validation
Vokt is building that layer.
For teams where correctness isn't enough
Behavior consistency matters.
Pricing That Scales With Risk
The cost of one silent regression > the cost of Vokt.
FREE
Explore Vokt on your own projects
PRO
Full coverage for active development
PREMIUM
For teams with shared critical systems