> Code Audit: Secure & Optimize Your Software_
Every codebase carries decisions nobody remembers making. Some of them are harmless. Others are an open admin route, a query that will stall at ten times the traffic, or a payment flow that fails without anyone noticing.
Krasty Soft provides code audit services that find those decisions before your users, an investor or an attacker does. Senior engineers read your code by hand, rank every finding by business impact and tie each one to a file and line. You get a clear fix list, not a scanner dump.
> When Does Your Business Need Code Auditing?_
A code audit pays off most at the moments when a wrong assumption becomes expensive. The common triggers are:
- You are about to launch, and nobody can say what happens when real users, real data and real payments arrive.
- The product was built fast, by a freelancer, an outsourced team or an AI coding tool, and you have never had it reviewed.
- You are raising a round or selling the company, and technical due diligence is coming.
- A new CTO or a new team is taking over a codebase they did not write.
- Releases keep breaking things, and every change takes longer than the last.
- A customer or a compliance framework is asking for proof of security controls.
Our code audit services for startups are built for the first two cases. Founders who shipped an MVP quickly usually need a fast, ranked answer to one question: what must be fixed before launch, and what can wait.
> What Is Included in Code Audit Services?_
Every audit starts from your goals, so the scope differs from project to project. Most engagements combine three areas of review, and you can order them together or one at a time.
Code Quality Audit and Architecture Assessment
We assess how the system is put together and whether it can grow. That covers the architecture and module boundaries, data model and migrations, error handling, test coverage and the overall quality of the code.
The goal is a practical view of maintainability and scalability: which parts are safe to build on, which parts slow your team down, and which parts will break first under load. Findings point to concrete refactoring steps, not general advice.
Security and Performance Analysis
On the security side we review authentication, authorization, input handling, secrets management and third-party dependencies for known vulnerabilities. We pay special attention to what is missing: the access check that was never written, or the database policy that exists but permits everything.
On the performance side we look for slow queries, missing indexes, unbounded loops over user data and expensive calls on hot paths. Each issue comes with an estimate of when it will start to hurt.
Website and Software Code Audit
A website code audit covers the frontend and the server code behind your site or web app: rendering, forms, APIs, sessions and integrations with payment, email or CRM providers. A software code audit extends the same review to backend services, background jobs and internal tools.
We also check the infrastructure the code depends on: environment configuration, deployment setup, logging and backups. A secure codebase on a misconfigured server is still a risk.
> Industries & Use Cases_
We audit products in the industries we build for, where a defect costs more than a bug report:
- SaaS: multi-tenant data isolation, billing logic and admin tools before launch or fundraising.
- Healthcare: access to patient data, audit trails and session handling in clinical and HIPAA-regulated software.
- Fintech: payment flows, balance calculations, idempotency and fraud-sensitive endpoints.
- Ecommerce: checkout reliability, inventory sync and integrations with marketplaces and payment providers.
- AI products: prompt injection, agent permissions and data exposure in LLM-based applications.
A recent example is our production readiness audit of an AI-generated SaaS. In 11,580 lines of code we found 98 issues, 35 of them critical, and delivered the report in 7 business days.
> Our Code Auditing Process_
Our process is the same whether the codebase has ten thousand lines or half a million. Only the depth of each step changes.
- Scoping call
We agree on goals, the parts of the system that matter most and the deadline. You get a fixed quote.
- Access and context
You share read-only repository access and any documentation. We review the code at a fixed commit, so results are reproducible.
- Manual review
Senior engineers read the code, supported by automated tools for dependencies and known patterns. Every candidate finding is confirmed before it goes into the report.
- Report
Findings are ranked by severity and written as business consequences, each with the file, the line and a recommended fix.
- Walkthrough and follow-up
We walk your team through the results, answer questions and, if you want, re-check the fixes.
> What You Get from Our Code Audit Services_
The report is the deliverable, but the outcome is what matters. After a codebase review with us, teams typically gain:
- Fewer incidents
Critical defects are fixed before users find them.
- Better security
You know where data can leak and how to close each gap.
- Less technical debt
You see which shortcuts will cost you and which can stay.
- Lower development costs
Your team stops fighting the code and ships features faster.
- Better performance
Slow paths are found before traffic grows.
- A clear plan
Every issue is prioritized, so the fixes fit into your normal sprints.
You also get an independent view of the functionality you already have: what works as intended, what only works in the demo, and what was never finished.
> Cost of Code Audit Services_
The cost of code audit services depends on the work, not on a fixed package. The main factors are:
- The size of the codebase and the number of services or apps in scope.
- The depth of review: a focused security pass or a full audit of quality, architecture and performance.
- The tech stack and the number of external integrations.
- The deadline, for example an audit that must finish before a due diligence date.
After a short scoping call we give you a fixed price and a delivery date in writing. You know the full cost before the work starts, with no hourly surprises.
An audit is usually a fraction of what a single serious incident costs. A data leak, a broken checkout during a sales peak or a failed due diligence will cost more than finding the problem in advance.
> Explore Our Other Software Audit Services_
If you already know where the risk is, start with a focused audit. Each one goes deeper into a single area than a general review.
- Application security audit: a security review of your application code, authentication, data handling and integrations. It includes a web application security audit for browser-based products and a mobile application security audit for iOS and Android apps.
- API audit: authentication, access control and data exposure across REST and GraphQL endpoints.
- AI agent security audit: prompt injection, tool permissions, memory and data leakage in LLM-based agents.
> FAQ About Code Audits_
These are the questions founders and CTOs ask us most often before they order an audit.
How Long Does a Code Audit Take?
Most audits take one to three weeks. A focused review of a small product can finish in a few business days, while a large platform with several services takes longer. We agree on the timeline before we start.
Can a Code Audit Help Improve Application Performance?
Yes. We find slow database queries, missing indexes, heavy client bundles and expensive calls on frequent paths. Each finding explains the expected impact, so your team can fix the costly ones first.
How Do You Prioritize Issues Found During a Code Audit?
We rank each issue by severity and by likelihood: what could happen, how easy it is to trigger and how many users it affects. Critical issues that expose data or money come first, and cosmetic issues come last.
Can You Audit a Codebase Without Disrupting Development?
Yes. We work from read-only access at a fixed commit, so your team keeps shipping as usual. We only need a short call at the start and an hour of a developer's time for questions.
Do You Provide Recommendations for Fixing Identified Issues?
Yes. Every finding includes a recommended fix, and many include example code. Our technical code audit services can also cover the fixes themselves if your team does not have the capacity.