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Code Audit Services

Our code audit company ships every finding with a file path, line number, and severity rating.

Security, performance, architecture, code quality, and accessibility — reviewed by engineers, not automated scanners. Full written report in 5 business days. Fixed price from $1,200 to $5,800.

Request My Code AuditPreview the Report
5 days
report delivery
$1.2K–$5.8K
fixed price tiers
Read-only
repository access only
Engineers at a long table reviewing a printed code audit report beside a laptop showing a SonarQube dashboard with a green passing quality gate, natural window light
Generic review vs. code audit agency

A pull request comment is not an audit.

Most "code reviews" produce vague categories — "improve the database layer," "add more tests," "security looks fine." A Redefine code audit produces specific file paths, line numbers, severity ratings, and recommended fixes your team can act on immediately.

Generic code review
  • "Consider refactoring the auth module"
  • "Performance could be improved"
  • "Add input validation somewhere"
  • No severity ratings or prioritization
  • No remediation guidance included
Redefine code audit report
  • src/auth/login.controller.ts:47 — SQL injection (Critical)
  • services/ProductService.php:234 — N+1 query on checkout (High)
  • api/checkout.ts:89 — missing CSRF token (High)
  • Prioritization matrix by business impact
  • Specific fix recommendation per finding
Report preview

This is what your audit report looks like.

Five categories. Every finding with file path, line number, severity, and a specific fix. Delivered as PDF plus a 60-minute walkthrough call.

Redefine Code Audit Report · acme-corp/api
Unsanitized user input in login query
src/auth/login.controller.ts:47
Critical
Raw request body concatenated into SQL string. Exploitable via POST /api/login with crafted email parameter.
Fix: Use parameterized queries via your ORM prepared statement API.
Hardcoded API key in source
config/secrets.js:12
High
Production Stripe secret committed to repository history. Key visible to any collaborator with read access.
Fix: Rotate key immediately. Move to environment variables and add to .gitignore.
Missing CSRF protection on checkout
api/checkout.ts:89
High
State-changing POST endpoint accepts requests without CSRF token validation.
Fix: Add CSRF middleware using double-submit cookie pattern.
N+1 query in product catalog
services/ProductService.php:234
High
Loop loads related variants with individual queries. Runs 800K+ queries/month on checkout path.
Fix: Eager-load variants with single JOIN or batch query.
Unbounded Redis cache keys
lib/cache/redis.ts:18
Medium
Cache keys never expire. Memory grows unbounded under load.
Fix: Set TTL of 3600s on product cache keys.
Missing index on orders.user_id
db/migrations/2024_orders.sql
High
Full table scan on every user order lookup. P95 latency 2.3s at 50K orders.
Fix: Add composite index on (user_id, created_at DESC).
Circular module dependency
modules/payment/index.ts ↔ modules/billing/index.ts
High
Payment imports billing for invoice generation; billing imports payment for charge capture. Blocks independent deployment.
Fix: Extract shared invoice interface to modules/shared/invoicing.
God class: UserManager
src/UserManager.java:1
Medium
1,847 lines handling auth, profile, billing, and notifications. 14 direct database dependencies.
Fix: Split into AuthService, ProfileService, BillingService.
No API versioning strategy
api/routes.ts:1
Medium
Breaking changes deployed without version prefix. Mobile clients on v1 break silently.
Fix: Introduce /v1/ prefix and deprecation policy.
Zero test coverage on payment capture
payments/capture.ts:1
High
Critical revenue path has no unit or integration tests. Last manual test was 8 months ago.
Fix: Add integration test suite covering success, decline, and timeout paths.
Duplicated email validation
controllers/UserController.ts:34, OrderController.ts:67, AuthController.ts:12, CheckoutController.ts:89
Medium
Same regex copied in 4 controllers. Diverged in two files.
Fix: Extract to shared validators/email.ts.
Dead code: legacy import path
legacy/import_v1/
Low
1,200 lines unreachable from any route. Last referenced in commit 14 months ago.
Fix: Delete directory after confirming no runtime references.
Form inputs without associated labels
templates/cart:142
High
Quantity and promo code inputs lack label or aria-label. Screen reader users cannot identify fields.
Fix: Add visible labels or aria-label attributes.
Missing alt text on product images
components/ProductCard.vue:28
Medium
47 product image instances use empty alt attribute on checkout flow.
Fix: Add descriptive alt text from product.name field.
CTA button fails contrast ratio
styles/checkout.css:201
Medium
Primary checkout button: 2.8:1 contrast on hover state. Fails WCAG AA (requires 4.5:1).
Fix: Darken hover background to #005bb5 for 4.6:1 ratio.
Proof

Structured audit findings drove $120M in annual revenue.

Corporate Gear used audit-identified friction points to run A/B tests, fix conversion blockers, and reach top-1% market position in B2B corporate branding ecommerce.

Developer working calmly at a desk with VS Code showing an all-tests-passed green terminal run after the code audit, warm desk-lamp light and gentle screen glow, back-angle profile
Developer presenting code audit findings on a large monitor showing a GitHub pull request review with inline comments and an approved all-checks-passed status, morning office light
CTO and engineering lead reviewing a printed code audit report at a conference table beside a laptop showing a SonarQube overview with a passed quality gate, morning meeting-room light
Annual revenue achieved
$0M
after structured user experience and conversion optimization following audit
Testing method
A/B
multivariate testing run on every audit-identified friction point
Outcome
Top 1%
corporate branding and apparel ecommerce market position
Client

Corporate Gear

Business-to-Business Ecommerce · Corporate Branding

User Experience AuditConversion Rate OptimizationA/B Testing

A business-to-business ecommerce platform competing in the crowded corporate branding and apparel market, needing to improve website usability, accessibility, and conversion performance.

The Problem

The existing site experienced limited lead generation and engagement. Optimization efforts were not structured: teams made changes without a framework for knowing which issues to address first or how to measure success.

No structured audit meant no prioritization. Teams guessed at improvements and could not measure which changes drove revenue.

The Result
$120M

annual revenue following structured audit findings, A/B and multivariate testing on identified friction points, and personalization aligned with user behavior data

  • Significant increases in website traffic, lead generation, and conversion rates
  • Customer engagement and loyalty strengthened through personalization
What sets our code audit consulting apart

Three things generic code reviews miss.

01 · File precision
Specific file. Specific line. Not "improve your database layer."
Generic audits produce categories of concern without actionable location. This report gives you the exact file path, the exact line number, and the exact query or function that is the problem. Your developer reads the finding and knows immediately what to open.
02 · Business context
Every finding is prioritized by business impact, not technical severity alone.
A SQL injection in a low-traffic endpoint is different from a performance bottleneck on your checkout page. The prioritization matrix scores every finding by: estimated fix effort, blast radius if exploited, and direct revenue or conversion impact. You fix the right things first.
03 · Fix included
Each finding ships with a specific code-level recommendation, not a suggestion to "research options."
Every finding in the report includes a recommended implementation approach: sometimes a code snippet, sometimes a specific library or pattern with a rationale. Your team does not need another meeting to figure out how to address what the audit found. The fix is part of the deliverable.
Code audit pricing and process questions

What engineering teams ask before buying a code audit.

Turnaround, access requirements, and what happens if you want fixes after the report. Answered directly.

Pricing summary

$1,200 Starter (up to 25K lines of code) • $2,800 Standard (25K to 100K lines of code) • $5,800 Enterprise (100K+ lines of code)

Fixed-price. Report in 5 business days. Walkthrough call included. No hourly billing.

Read-only access to your repository is sufficient. We do not need write access, deployment credentials, or access to production systems. You can create a dedicated read-only deploy key or add a temporary collaborator with read permissions. We will provide the exact instructions for GitHub, GitLab, or Bitbucket. If you have a non-disclosure agreement requirement, we sign before access is granted.
After the walkthrough call, we can scope a remediation engagement based on the audit's prioritization matrix. The audit cost is credited toward the remediation engagement. There is no obligation to continue: the report is yours to use with any team. Many clients use the audit to brief an internal team or freelancer; others bring us in to do the fixes. Either outcome works for us.
A penetration test attempts to exploit vulnerabilities from the outside: it simulates an attacker. A code audit reads the source code directly to identify vulnerabilities before they are exploited. The audit will identify the same SQL injection and authentication issues a penetration test would find, plus code quality, architecture, and performance issues a penetration test cannot see. They are complementary: audit first to find and fix issues, penetration test after to verify the fixes held.
Node.js, Python, PHP (including Laravel and Symfony), Ruby on Rails, .NET, Java (Spring), React, Vue, Angular, and Next.js. We have also audited Go and Rust services for architecture and security categories. If your primary stack is not listed, submit the brief and we will confirm before you pay. We do not take an audit we cannot deliver at full depth.
Yes, and this is the primary use case for the Enterprise tier. The audit produces an objective assessment of technical debt severity, security posture, maintainability, and team capacity signal from code quality. The executive summary deck is formatted to accompany merger and acquisition documentation. We can add a signed attestation letter to the deliverable if required by your legal team. The Enterprise audit includes a second call specifically for investor or acquirer questions and answers.
Right match?

Select what describes your current situation.

A code audit is the right tool for some problems and the wrong tool for others. We are direct about the difference.

Match score0 of 6 selected

Selecting scenarios automatically — tap any card to adjust

You are preparing for a funding round or acquisition and need a technical report

Investors and acquirers ask for this specifically. Having an independent audit gives you a credible, objective document.

Your app is slow or intermittently broken but you don't know the root cause

The audit tells you exactly what is slow, where, and why. You stop guessing.

You're about to bring in a new development team or agency and want an independent read of the codebase first

A pre-engagement audit sets a baseline and prevents the new team from inheriting unknown debt.

Security is a concern but you haven't done a systematic review of your application code

The audit covers the OWASP Top 10 and beyond, with specific file-level findings: not a generic checklist.

Not the right tool if:

You haven't shipped yet and the codebase is under 2 weeks old

Technical debt takes time to accumulate. An early-stage codebase benefits more from architecture guidance than an audit.

You need a test suite written, not just identified as missing

The audit identifies missing tests and their locations. The remediation engagement writes them. The audit alone does not fix what it finds.

Start your audit

Share your repository. Get a full code audit report in 5 days.

No commitment. No pitch. Share what language and framework, approximate size, and what concerns prompted the audit, and our code audit company confirms the tier and price before starting.

01

Submit your brief and repository URL

Language, framework, approximate codebase size, and the specific concern (performance, security, pre-acquisition, pre-migration).

02

Tier confirmation within 24 hours

We confirm the right tier and price in writing. You approve before any work begins.

03

Audit begins within 48 hours of sign-off

Read-only repository access granted. No production access required.

04

Full report and walkthrough call in 5 business days

PDF report, prioritization matrix, and a 60-minute call to walk through every finding.

Form
24 hours
Tier confirmed
5 days
Full report
142+
Audits delivered
60 min
Walkthrough call

Get on a call with us to see how we can help you

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