Last updated: August 2026. Written by Josh Hutcheson, OnlineCourseing editor. See our review methodology.
BUYER’S VERDICT
Bottom line: most teams need exactly two paid tools — a web application scanner and a vulnerability management platform. Everything else in a working pentest stack is free and open source, and stays that way at enterprise scale.
- Start here: Burp Suite Professional at $499 per user per year — the highest-value paid licence in security
- Scale here: Nessus Professional at $4,790/year, or Greenbone free if you can absorb the operational overhead
- Do not buy: adversary-simulation platforms until you have a red team that is already busy
This guide is for people with a budget and an approval process. If you are learning the craft and want the free toolkit in the order it makes sense to learn it, read our ethical hacking tools guide instead — it covers the same techniques without assuming anyone is paying.
Published Pricing, Where It Exists
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Most of this category hides behind “contact sales,” which makes budgeting genuinely difficult. Below is every price we could verify directly on the vendor’s own site in August 2026. Where a row says quote-only, that is itself useful information: expect a sales cycle, not a credit card.
| Tool | Category | Published price | Free tier? |
|---|---|---|---|
| Burp Suite Professional | Web app testing | $499 / user / year | Yes — Community edition |
| Nessus Professional | Vulnerability assessment | $4,790/yr · $9,331 / 2yr · $13,638 / 3yr | Essentials, IP-capped |
| Invicti (formerly Netsparker) | Web app scanning (DAST) | Quote only | No |
| Invicti Web + API (formerly Acunetix) | Web app scanning (DAST) | Quote only | No |
| Qualys | Vulnerability management | Quote only | Limited trials |
| Rapid7 InsightVM | Vulnerability management | Quote only | Trial |
| Metasploit Pro | Exploitation | Quote only | Framework is free |
| Core Impact | Exploitation | Quote only | No |
| Cobalt Strike | Adversary simulation | Quote only, licensed | No |
| Pentera | Automated security validation | Quote only | No |
| Horizon3 NodeZero | Autonomous pentesting | Quote only | No |
| Intruder | Attack-surface scanning | Published tiers | Trial |
| Astra | Pentest-as-a-service | Published tiers | No |
| Detectify | External attack surface | Published tiers | Trial |
| Greenbone / OpenVAS | Vulnerability management | Free community edition | Yes |
Two numbers on that table do most of the work. Burp Professional at $499 is, by a wide margin, the best value in commercial security tooling — it is the tool your testers will actually open every day. Nessus Professional at $4,790 is roughly ten times that, and it buys breadth of asset coverage rather than depth of testing. They solve different problems and most teams eventually own both.
What You Actually Need
The category is large because vendors keep inventing adjacent categories. Reduced to what a team genuinely has to own, there are four jobs, and only two of them normally justify spend.
| The job | Do you need to pay? | What we would do |
|---|---|---|
| Reconnaissance and mapping | No | Nmap and Wireshark are the professional standard. There is no paid tool that replaces them. |
| Web application testing | Usually yes | Burp Professional at $499/user. Add a DAST platform only when you must scan many apps on a schedule. |
| Vulnerability management | Usually yes | Nessus or Greenbone. Paid buys you asset scale, SLA-backed feeds and reports auditors accept. |
| Exploitation and simulation | Rarely | The free Metasploit Framework covers most needs. Commercial platforms are for mature red teams. |
Web Application Scanners
Burp Suite Professional is the practitioner’s tool. It is a proxy first and a scanner second, which is exactly right for manual testing — the scanner is a convenience, the interception is the product. At $499 per user per year it is cheap enough to buy without a business case, and it is what most testers will ask for by name.
Invicti solves the opposite problem. It is a DAST platform built to scan a large portfolio of applications automatically and produce reports someone else will read. It is quote-only. Its headline claim is proof-based scanning — confirming a vulnerability by safely exploiting it, so the finding arrives without a false-positive triage queue. That claim is the thing to interrogate in a proof of concept, because triage effort is the real cost of a scanner.
⚠️ Note that Invicti was previously called Netsparker. A great deal of older writing, including comparison content still ranking today, refers to it under the old name. Same product, same company — netsparker.com now redirects to invicti.com.
OWASP ZAP remains the free alternative and is genuinely capable, particularly in CI pipelines where per-seat licensing gets awkward. The honest trade is engineering time: ZAP needs more configuration to reach the same signal-to-noise ratio. See our web application pentesting tools guide for the deeper comparison.
Vulnerability Management
Nessus Professional at $4,790 a year is the default. It is unlimited-IP, it runs from your own machine, and its plugin feed is the most complete in the category. The multi-year discounts are shallow — $9,331 for two years saves $249, and $13,638 for three saves $732 — so there is little reason to commit early unless procurement prefers it.
Qualys and Rapid7 InsightVM compete at the platform tier, where you are buying continuous asset discovery, agent-based coverage and integration into a wider operations stack rather than a scanner. Both are quote-only and both will price against your asset count, so get an accurate inventory before the conversation starts.
Greenbone, the project formerly known as OpenVAS, is the credible free option. Its community feed lags the commercial ones and running it well takes real effort, but for teams with more time than budget it is a genuine alternative rather than a token one.
Exploitation and Adversary Simulation
Metasploit Framework is free, open source, and covers most of what most teams need. Metasploit Pro adds automation, team collaboration and reporting; it is quote-only, and the honest question is whether your reporting burden justifies it.
Core Impact and Cobalt Strike sit further up. Cobalt Strike in particular is a red-team command-and-control platform, sold under vetted licensing precisely because it is heavily abused — cracked builds circulate widely and are routinely backdoored. If you are not running a mature red team with a legal function behind it, this tier is not for you.
Pentera and Horizon3’s NodeZero represent the newer automated-validation category: continuously exploit your own environment to prove which findings are actually reachable. The pitch is real — it attacks the triage problem directly — but it does not replace a human tester, and any vendor implying otherwise is overselling.
The Free Tools Professionals Still Use Daily
It is worth being blunt about this, because vendor content rarely is: the core of professional penetration testing is free software, and no purchase changes that.
- Nmap — still the discovery and port-scanning standard, at every organisation size
- Wireshark — no commercial product replaces protocol-level analysis
- Metasploit Framework — the free core of the paid product
- sqlmap — the standard for SQL injection testing
- Hashcat and John the Ripper — credential auditing
- Ghidra — NSA-released reverse engineering, a real alternative to a commercial licence
- Aircrack-ng — wireless assessment
A team that owns Burp Professional and Nessus, and knows these seven well, is equipped for the large majority of engagements. Our penetration testing methodology covers the seven-step process they sit inside, and the network and web application checklists cover execution.
How to Choose
Four questions settle most procurement decisions in this category.
- How many applications, and on what schedule? One app tested manually needs Burp. Forty apps scanned weekly needs a DAST platform, and that is the only thing that justifies the price step.
- Who reads the output? If the answer is an auditor or a client, you are buying reporting, and reporting is most of what the commercial premium pays for.
- What is your triage capacity? A scanner that produces 400 findings a week is a liability if nobody can process them. Weigh false-positive rate above raw detection count.
- Can you absorb operational overhead? Greenbone is free in licence and expensive in hours. That trade is fine for some teams and terrible for others.
Run a proof of concept against your own applications before committing to anything quote-only. Every vendor in this category performs well on their own demo environment.
Buying to Satisfy a Compliance Requirement
A large share of the budget in this category is released not because a team wants better security but because an auditor asked a question. That is a legitimate reason to buy, and it changes which tool is correct — but it also creates the most common expensive mistake in the category.
PCI DSS requires internal and external penetration testing at least annually and after significant infrastructure changes. SOC 2 does not mandate a penetration test outright, but auditors routinely expect one as evidence for the relevant common criteria, and most organisations pursuing it end up commissioning one. ISO 27001 works similarly — testing is expected as part of demonstrating that controls are effective, rather than named as a hard requirement.
⚠️ The mistake: a vulnerability scanner is not a penetration test, and buying one does not satisfy a requirement for the other. Scanners find known issues by signature; a penetration test is a human chaining findings together toward an objective. If your driver is compliance, budget for an engagement, and treat tooling as what keeps you clean between engagements. Teams that discover this in the audit rather than before it end up paying for both inside the same quarter.
What tooling genuinely does buy you in a compliance context is the evidence trail — dated, repeatable scan output showing that findings were identified and remediated. That reporting is a large part of why the commercial tier costs what it does.
Tools or Pentest-as-a-Service?
The buying decision is not only which tool. For many teams the real alternative to a licence is buying the testing itself.
| Approach | Fits when | Watch out for |
|---|---|---|
| Buy tools, test in-house | You have testers on staff and a continuous need | Licences are the small cost; skilled headcount is the large one |
| Pentest-as-a-service (Astra, Cobalt, Synack) | You need periodic tests plus a report an auditor accepts | Scope creep, and reports that are thinner than the price suggests |
| Traditional consultancy engagement | A one-off, high-assurance test with a named lead tester | Long lead times; quality varies enormously between firms |
| Bug bounty | A mature security function and a public-facing product | Not a substitute for scoped testing, and not accepted as audit evidence |
Most organisations under a few hundred people are better served buying Burp Professional for whoever is doing the work, and commissioning an external engagement annually, than by licensing an enterprise platform they lack the headcount to operate. If your interest is building that capability in-house, our penetration testing courses guide covers the training path, and bug bounty courses covers the adjacent discipline.
The Open-Source Core, Tool by Tool
These are not budget substitutes. They are what testers reach for first, at every organisation size, and any evaluation that ignores them is measuring the wrong baseline.
Nearly all of them ship pre-installed on Kali Linux, which is why so many teams standardise on it as their testing platform. Our guide to the best Kali Linux tools covers the full open-source set and how Kali groups them by engagement phase.
Nmap
Host discovery, port scanning, service and version detection, plus a scripting engine that covers a surprising amount of vulnerability checking. Nothing commercial replaces it; the paid platforms wrap equivalent functionality in scheduling and reporting. See our Nmap courses guide for training.
Wireshark
Packet capture and protocol decoding. Its value in a professional context is diagnostic — when a scanner reports something implausible, Wireshark is how you find out what actually happened on the wire. Wireshark courses.
Metasploit Framework
The free core of Rapid7’s commercial product: exploit modules, payloads, handlers and post-exploitation tooling. For most teams the Framework is sufficient, and the Pro upgrade is a reporting and automation purchase rather than a capability one. Metasploit courses.
sqlmap, Hashcat and Ghidra
sqlmap remains the standard for SQL injection detection and exploitation. Hashcat handles GPU-accelerated credential auditing, which matters whenever you are asked to demonstrate real password weakness rather than assert it. Ghidra, released publicly by the NSA, gives you serious reverse-engineering capability without a commercial disassembler licence — a meaningful line item to avoid.
What Changed in 2026
Three shifts worth knowing before you compare older content, because a lot of the material currently ranking for this term predates all of them.
- Netsparker became Invicti. Comparison articles still list them as separate products, or recommend Netsparker as though it were a current brand. It is one company and one product.
- Automated security validation became its own category. Pentera and Horizon3’s NodeZero sell continuous self-attack rather than scanning. The category is real; the claim that it replaces human testers is not.
- Acunetix became Invicti Web + API. Following the Netsparker rebrand, Acunetix was folded into the same brand — its own site now says so outright. A shortlist naming Netsparker, Invicti and Acunetix is naming one vendor three times.
Frequently Asked Questions
What are the best penetration testing tools in 2026?
For most teams: Burp Suite Professional ($499 per user per year) for web application testing, Nessus Professional ($4,790 a year) or Greenbone for vulnerability management, and the free open-source core of Nmap, Wireshark, Metasploit Framework and sqlmap. Enterprise platforms such as Invicti, Qualys and Rapid7 InsightVM are quote-only and justified mainly by scale and reporting requirements.
How much do penetration testing tools cost?
Two vendors publish prices directly: Burp Suite Professional is $499 per user per year, and Nessus Professional is $4,790 for one year, $9,331 for two, or $13,638 for three. Most other enterprise platforms – Invicti, Qualys, InsightVM, Core Impact, Cobalt Strike, Pentera – are quote-only and priced against your asset count.
Is Netsparker the same as Invicti?
Yes. Netsparker was renamed Invicti, and netsparker.com now redirects to invicti.com. It is the same product from the same company. A lot of older comparison content still ranking today refers to it by the former name.
Do I need to pay for penetration testing tools?
Not for the core work. Nmap, Wireshark, Metasploit Framework, sqlmap, Ghidra and Aircrack-ng are free and are what professionals use daily. Paid tools earn their place in two situations: scanning many applications on a schedule, and producing reports that auditors or clients will accept.
What is the difference between penetration testing tools and ethical hacking tools?
The toolsets overlap almost entirely; the difference is context. ‘Penetration testing tools’ usually refers to the commercial platforms teams buy for scheduled scanning and audit-ready reporting, while ‘ethical hacking tools’ more often refers to the free, open-source toolkit people learn on.
Is Burp Suite Professional worth $499?
For anyone testing web applications professionally, yes – it is the lowest-friction purchase in security tooling and the tool most testers ask for by name. The free Community edition is enough for learning, but its throttled scanner and lack of saved projects make it impractical for paid work.
RELATED GUIDES
- Ethical hacking tools — the free toolkit, for learners
- Web application pentesting tools — the web-specific stack
- Windows pentesting tools — the Windows-specific toolkit
- Penetration testing methodology — the seven-step process
- Penetration testing courses — training your team
- Cybersecurity certifications — what employers ask for
Related reading: iOS penetration testing · WiFi penetration testing tools
