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Code Audit Services for Founders Who Paid for Software They Can't Read

For founders and product owners who need an honest read on their codebase: what's solid, what's risky, and what to fix first, from $650.

  • Top 10

    Fixes ranked by risk and cost

  • 100%

    Dependencies checked for known flaws

How your project runs

page.jsx123456TERMINAL$ npm run buildCompiled successfullyyourapp.comLive

Teams we have built for:

  • Amazon Web Services
  • HubSpot
  • Linode
  • Microsoft Azure
  • Moodle
  • Magento
  • Oracle
  • Salesforce
  • SAP
  • Squarespace
  • Weebly
  • WP Engine
  • Google Cloud
  • DigitalOcean

The Problem

You Paid for the Code, but You Can't Tell If It's Any Good

The doubt usually shows up at a handover: an agency leaves, a freelancer goes quiet, or a new developer says everything needs a rewrite. You need a second opinion you can trust.

  1. 01 · Second opinion

    A new developer says the whole app needs a rewrite.

    We measure the code and show which parts truly need rebuilding, if any.

  2. 02 · Dependencies

    Nobody has checked the project's packages since launch.

    Every dependency is checked against known vulnerability databases and its license terms.

  3. 03 · Secrets

    Passwords and API keys sit in plain config files.

    We flag exposed secrets and show how to move them into a secret manager.

  4. 04 · AI code

    Large parts of the code came from an AI assistant.

    We read AI-written code for logic errors, unsafe patterns, and missing tests.

Your MVP was built by a freelancer you found online, and it works, mostly. Now a new developer says half of it should be rewritten, and quotes to match. You can't tell if they're right. Nobody has looked at the 140 npm packages in the project since launch. There are no tests, the admin password sits in a config file, and parts of the code came straight from an AI assistant. You're about to fund the next phase without knowing what you're building on.

We start by reading the code the way a new senior hire would, then back that up with scans. Static analysis measures complexity and duplication, dependency checks flag known vulnerabilities and license risks, and a manual review covers architecture, tests, and how data and secrets are handled. You get a plain-English source code audit with every finding ranked by risk and cost to fix. You decide on evidence, not on whoever sounds most certain.

  • Read by a senior developer

    Scanners find patterns. A person checks whether the architecture fits what your product needs to do.

  • Fixes ranked, not dumped

    Each finding has a severity, an effort estimate, and an order, so you know what to fix first.

  • Plain English for owners

    A summary written for non-developers, plus technical notes your developers can act on directly.

Our Code Audit Services Process

From Repository Access to a Ranked Fix List in Five Clear Steps

You see the scope and price before we start, and you can question every finding before the report is final.

  1. We ask what the software does, who built it, and what decision the audit has to support. You share the stack, the rough size, and where the code is hosted. You get a fixed price and a list of what we'll review.

What's Included

What You Get With a Source Code Audit

A full read of your codebase across 6 areas, backed by automated scans. Every finding comes with a severity, an effort estimate, and a suggested fix.

  • Architecture and structure review

    How the code is organized, where it's tangled, and whether it can grow with your product.

  • Maintainability scorecard

    Complexity, duplication, naming, and dead code measured, so you can see where changes will be slow.

  • Dependency and license check

    Every package checked for known vulnerabilities, abandoned maintenance, and licenses that clash with selling your product.

  • Security smell review

    Injection risks, weak authentication, exposed secrets, and unsafe data handling, mapped to OWASP Top 10 categories.

  • Test and release review

    What's tested, what isn't, and whether builds and deployments are repeatable or depend on one person.

  • Ranked report and walkthrough

    An owner summary, technical notes, a ranked fix list with hour estimates, and a call to go through it.

Compare Options

DeveloperLook vs Automated Scanner vs In-House Developer

Scanners are cheap and fast, and your own developer knows the history. Here's what each one catches, so you can pick the right check for your decision.

DeveloperLook
Automated scanner
Independence
DeveloperLook: No stake in the codebaseAutomated scanner: Neutral, but no judgment
Architecture judgment
DeveloperLook: Senior developer reviewAutomated scanner: Not covered
Known vulnerable packages
DeveloperLook: Scanned and explainedAutomated scanner: Fast and thorough
Business logic errors
DeveloperLook: Read on critical pathsAutomated scanner: Rarely caught
Report for non-developers
DeveloperLook: Owner summary includedAutomated scanner: Raw findings only
Fix priorities
DeveloperLook: Ranked by risk and costAutomated scanner: Ranked by severity only
Cost
DeveloperLook: Fixed, from $650Automated scanner: Free to a low monthly fee
Time to results
DeveloperLook: About 1 to 2 weeksAutomated scanner: Minutes

Projects We've Built

Apps we designed and built, including healthcare and finance products. They show the kind of code we read, not audits we performed.

What Our Clients Say

What Clients Say After Launch

Feedback from teams we have built web and mobile apps for.

We had a pretty specific idea of what we wanted our website to become, but I wasn’t sure how easily we could explain all of it to a development team. There were quite a few moving parts, and we were working toward a deadline, so I expected a few things to get lost along the way. That never really happened. They understood what we were trying to achieve, kept us updated throughout the process, and got everything ready within the agreed timeline. The final site feels much easier to navigate, works beautifully on mobile, and is noticeably smoother for our customers. It was a huge relief seeing the original idea actually turn into the website we had in mind.

Michael BennettFounder & CEO of Northbridge Consulting01 / 03
  • 1,250+

    Projects shipped

  • 10+

    Years of experience

  • Top 3%

    Upwork Top Rated Plus

  • 5 stars

    Average review score

Want results like these?

Tell us what you are building. You get a reply within 24 hours on business days, then a written estimate.

Work Culture

Why Founders Trust Us With a Code Audit

An audit is only useful if it's honest and readable. These habits keep our findings fair to the people who wrote the code and useful to the people paying for it.

  • Fair to the original team

    We judge code by the constraints it was written under, not by hindsight. Findings describe problems and fixes, not the people behind them.

  • Every finding has a cost

    Each issue comes with an hour estimate to fix it. You can budget the next quarter from the report instead of guessing.

  • No rewrite upsell

    We don't sell a rewrite on the back of an audit. If most of your code is sound, the report says so in its first paragraph.

  • Read-only, under NDA

    We work from read-only repository access and sign your NDA before we look. Production data and passwords stay out of the review.

  • AI code gets extra scrutiny

    Code written by AI assistants often looks right but skips edge cases and input checks. We read those sections line by line.

  • Written for two audiences

    The summary is for you, and the technical notes are for your developers. Both read the same findings, so nobody argues later about what was said.

Overview

What do code audit services include for a web or mobile app?

DeveloperLook provides code audit services for web and mobile apps built by agencies, freelancers, or AI tools. A senior developer reviews architecture, maintainability, dependencies, tests, and security risks, backed by automated scans. Audits start at $650, most take 1 to 2 weeks, and you get a plain-English report with fixes ranked by risk and cost.

DEVELOPERLOOK

Project facts · Code Audit Services

Service
Code audit services (architecture, code quality, dependencies, security risks)
Typical timeline
1 to 2 weeks for one repository, up to 3 weeks for several
Platforms
JavaScript, TypeScript, PHP, Python, Java, .NET, and Flutter apps
Built with
ESLint, Snyk, GitHub, OWASP guidance, and manual review
Experience
10+ years of development experience and 1,250+ shipped projects
Post-launch support
14 days of follow-up questions after the report
Communication
Calls in US, UK, and AU business hours
Starting price
From $650 USD, fixed scope after a free scoping call

Reviewed 8 Oct 2026 by Saimul Islam

Good fit

  • Founders with a freelancer-built MVP

    Your MVP works, but the freelancer who built it is gone, and you want a software code audit before funding the next phase.

  • Owners taking over from an agency

    Your agency contract just ended, and you want to know what you actually received before you hand the code to a new team.

  • Teams shipping AI-generated code

    Your developers ship faster with AI assistants, and you want a person to check what those tools wrote before customers find the bugs.

  • Healthcare and finance app owners

    Your app stores health or payment data, and you need to know where the code handles it carelessly before a customer's security review.

  • Agencies needing a second opinion

    You inherited a client project and want a code audit company to review it under your brand before you quote any changes.

Not a fit

  • Need a penetration test

    You need an attacker's view of your live app, not a review of its code. Web Application Penetration Testing Services covers that.

  • Live website check only

    You want speed, SEO, and design checked on your marketing site. Website Audit Services reviews the live site, not the repository.

  • Need a compliance certificate

    You need a SOC 2 report or a HIPAA attestation. An audit firm issues those; our findings support the work but certify nothing.

  • Budget under $650

    You want a quick opinion on a few files. A free automated scanner or an hour with a freelancer costs less than our Code Snapshot.

Not sure we're the right fit?

Book a free call or message us. We'll tell you honestly whether we're the right team.

Pricing

Transparent Starting Prices for Code Audit Services

These are starting points in USD. Your final price depends on the size of the codebase, the number of repositories, and the stack, and you get a fixed proposal after a free scoping call.

$500$1k$1.5k$2k$2.5k$650$1,400$2,250

For founders who need a fast, honest read on one small app before a decision.

$650one-time, USD

Get a fixed quote
  • 1 repository reviewed by a senior developer
  • Dependency, secret, and static analysis scans
  • Owner summary in plain English
  • Top 10 fixes ranked by risk and cost
  • 30-minute walkthrough call
  • 14 days of follow-up questions

Recommended

For products heading into a funding round, a team change, or a major release.

$1,400one-time, USD

Get a fixed quote
  • Everything in Code Snapshot
  • Scorecard across 6 areas, every finding listed
  • Architecture and test coverage review
  • OWASP Top 10 mapping for security findings
  • Hour estimate for every fix
  • 14 days of follow-up questions

For teams with several repositories or services who need a costed plan and a recheck.

$2,250one-time, USD

Get a fixed quote
  • Everything in Full Code Audit
  • Up to 3 repositories or services
  • Infrastructure and CI/CD configuration review
  • 90-day fix plan in sprint-sized tasks
  • Recheck of the top fixes once they're done
  • 14 days of follow-up questions

For Agencies

White-Label Code Review Services for Agencies

You own the client relationship. We supply the independent review: a full audit under your brand before you quote changes, take over a project, or defend your own team's work. Your client sees your logo on the report.

How the partnership works

White label: your client only ever sees your brand

  • Your client
  • You, the agency
  • DeveloperLook
  1. Share the repository

    Give read-only access and tell us what the client needs to decide.

    1. Client needs
    2. You share the details
    3. Details received
  2. We review and score

    We scan, read, and rank the findings, then check them with you first.

    1. Scope and plan
    2. Proposal to resell
    3. Your quoteYOUR LOGO
  3. Deliver under your brand

    You present the report, and we join the walkthrough if you want us there.

    1. Done by our team
    2. Your brand on it
    3. Handed to your clientDone
  • Stay client-facing

    Reports carry your brand, and we stay off client calls unless invited.

  • Quote with evidence

    Price takeover work from measured findings, not a gut feeling.

  • Senior reviewers

    Developers who've maintained code in every major web stack.

  • Quick snapshots

    A Code Snapshot is usually ready in about 1 week.

The Right Technology for Your Project

Technology Stack

The languages we read and the scanners behind our reviews. Every automated result is checked by a person before it reaches the report.

    • JavaScript
    • TypeScript
    • PHP logoPHP
    • Python logoPython
    • Java
    • .NET
    • React logoReact
    • Next.js logoNext.js
    • Node.js logoNode.js
    • Laravel logoLaravel
    • Django
    • Flutter logoFlutter
    • OWASP logoOWASP
    • Snyk
    • ESLint
    • GitHub
    • PostgreSQL logoPostgreSQL
    • MySQL logoMySQL
    • MongoDB leaf logoMongoDB
    • Firebase logoFirebase

FAQ

Frequently Asked Questions

Straight answers on price, timing, what an audit covers, and how your code stays confidential.

  • Our audits start at $650 for a snapshot of one repository with the top 10 fixes ranked. A Full Code Audit costs $1,400, and the Audit and Fix Plan for up to 3 repositories costs $2,250. Size and stack set the price, and you get a fixed quote after the free scoping call.

  • A review of one code change takes well under an hour, but auditing a whole app takes 1 to 2 weeks. Careful reading slows down over long sessions, so we split the audit into focused sessions and back them with scans. Several repositories can take up to 3 weeks.

  • A code audit is an independent review of a whole codebase, done before a decision rather than before a single merge. It checks architecture, code quality, dependencies, tests, and security risks. Code auditing ends in a report with ranked findings and effort estimates, not a long list of line comments.

  • Code review is a developer checking a colleague's change before it's merged into the main codebase. It catches bugs, unclear logic, and style problems while they're small. It's a daily team habit, while an audit looks at the whole project at once. Code review as a service gives small teams an outside reviewer on a schedule.

  • Code review is important because it catches defects when they're cheapest to fix: before they ship. It also spreads knowledge, so one developer leaving doesn't take the system's logic with them. Teams that skip regular reviews tend to pile up the duplication and shortcuts a later audit has to untangle.

  • You do a code audit when a decision depends on the code's real condition. Common triggers are taking over from an agency, raising money, hiring a new team, or planning a big release. The audit tells you whether to fix, refactor, or rebuild, and roughly what each option will cost.

  • AI-generated code needs human review because it often looks correct while missing edge cases, input checks, and error handling. Assistants can also suggest outdated or nonexistent packages and repeat insecure patterns. A developer who knows your product's rules catches what the tool can't know about your business.

  • We can review your healthcare app's code against the technical safeguards in the HIPAA Security Rule: access control, audit controls, integrity, authentication, and transmission security. We trace where protected health information is stored, logged, or exposed. Our findings support your compliance work, but HIPAA compliance stays your organization's responsibility, and we don't certify it.

  • A website code audit from us covers JavaScript, TypeScript, PHP, Python, Java, and .NET, plus frameworks like React, Next.js, Laravel, and Django. We also review Flutter mobile apps and the databases behind them. If your stack falls outside that list, we'll say so on the scoping call instead of learning it on your budget.

  • Yes. We sign your NDA before we get access, work from read-only repository rights, and delete our local copies when the engagement ends. We don't need production data or customer records for the review. You own the final report and can share it with investors, buyers, or a new development team.

Saimul IslamFounder & CEO, DeveloperLook

Still have questions?

Send a message or book a call with the team.

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