Best Naabu Alternatives in 2026
The top Naabu alternatives are Nmap, ScanSearch and HostedScan Security: 15 port scanner software our editors would look at instead of Naabu, in our ranking order.
Naabu: A free, CLI-focused scanner for internet-scale port and service discovery. Where it falls short: local CLI use requires command-line familiarity.
Switching from Naabu? For most port scanner software buyers the best Naabu alternative is Nmap, built for broad, mature free scanning across major platforms. On a budget, Nmap Online Scan starts at $4.99/mo.
Why People Look for a Naabu Alternative
- Local CLI use requires command-line familiarity
- Service-version detection requires a local Nmap installation
- Narrower CLI focus than broader port-scanning platforms
Quick Picks by What You Need
- Best overallNmap9.4
Broad, mature free scanning across major platforms
Visit Nmap - Lowest priceNmap Online Scan7.8
Paid plans from $4.99/mo
Visit Nmap Online Scan - Best free optionNmap9.4
Has a free plan
Visit Nmap
All 15 Naabu Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
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Best forBroad, mature free scanning across major platforms
- Better than Naabu:
- Editor score 9.4 vs 9.1
A mature, broad port scanner with deep command-line capabilities and useful companion tools.
9.4/10★★★★★Visit Nmap -
Best forManaged attack-surface and vulnerability scanning
A cloud scanner for internet exposure, vulnerability matching, monitoring, and API-driven workflows.
- OS detection
- Scheduled scans
- API access
8.9/10★★★★☆Visit ScanSearch -
Best forTeams needing hosted recurring scans and reporting
Hosted recurring scans, reporting, and security workflows for infrastructure teams.
- Scheduled scans
- API access
- Service detection
8.8/10★★★★☆Visit HostedScan -
Best forProfessional web-based pentesting workflows
A deep, workflow-ready port scanner for professional security teams.
- OS detection
- Scheduled scans
- API access
8.7/10★★★★☆Visit Pentest-Tools -
Best forSimple free GUI network and port scanning
A free GUI scanner for straightforward network discovery and port checks.
8.6/10★★★★☆Try Angry IP Scanner -
Best forHigh-speed internet-scale SYN scanning
A free, open-source CLI for fast, large-range SYN scanning.
- Service detection
8.5/10★★★★☆Visit Masscan -
Best forFast Nmap-assisted network reconnaissance
A free, open-source CLI scanner for rapid reconnaissance and Nmap-based analysis.
- OS detection
- Service detection
8.4/10★★★★☆Visit RustScan -
Best forInternet scanning with banners and TLS details
A focused CLI scanner for internet reconnaissance, banners, TLS details, and resumable results.
- Service detection
8.3/10★★★★☆Visit portwave -
Best forDistributed scanning with stored analysis
A distributed scanner for teams that want stored, enriched network analysis.
- OS detection
- API access
- Service detection
8.2/10★★★★☆Visit Unicornscan -
Best forResearchers performing internet-wide probing
A powerful CLI for large-scale IPv4 probing, without deeper service detection.
8.1/10★★★★☆Visit ZMap -
Best forLinux teams scanning at high packet rates
A specialized open-source scanner for high-rate Internet measurement on Linux.
- Scheduled scans
- Service detection
8.0/10★★★★☆Visit Farsight -
Best forFree hosted scans with API automation
A free hosted TCP scanner with deep scans, service detection, and API automation.
- API access
- Service detection
7.9/10★★★★☆Visit PortScan.com -
Best forLow-cost occasional hosted Nmap scans
A low-cost hosted Nmap option for occasional internet-facing scans.
- OS detection
- Service detection
7.8/10★★★★☆Try Nmap Online Scan -
Best forFree network diagnostics with structured output
A free, open-source scanner for structured network inspection across major desktop platforms.
- Service detection
7.7/10★★★★☆Visit NetsCLI -
Best forAuditable desktop scanning on Windows or Linux
A focused, auditable scanner for TCP reconnaissance, inventory, and compliance work.
- Service detection
7.6/10★★★★☆Visit site
Naabu Alternatives: Common Questions
What is the best alternative to Naabu?
Nmap: #1 in our Port Scanner Software ranking, with an editor score of 9.4 out of 10. A mature, broad port scanner with deep command-line capabilities and useful companion tools.
Is there a free alternative to Naabu?
Yes. Nmap, ScanSearch, Pentest-Tools Port Scanner, Angry IP Scanner and Masscan have a free plan or a free tier (14 of the 15 alternatives on this page).
What is the cheapest paid alternative to Naabu?
Of the alternatives here that publish a price, Nmap Online Scan starts lowest, at $4.99/mo.
Why do people look for Naabu alternatives?
Local CLI use requires command-line familiarity; Service-version detection requires a local Nmap installation; Narrower CLI focus than broader port-scanning platforms.
How do I switch from Naabu?
Export your data from Naabu (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel Naabu.
How to Switch from Naabu
- Export your data from Naabu (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel Naabu.
Naabu vs Each Alternative
| # | Tool | Free plan | Paid from | Deployment | Scan scope | Service detection | Score |
|---|---|---|---|---|---|---|---|
| 2 | Naabu | Yes | Free | Cli | Internet | Yes | 9.1 |
| 1 | Nmap | Yes | Free | Desktop | 9.4 | ||
| 2 | ScanSearch | Yes | $39/mo | Cloud | Internet | Yes | 8.9 |
| 3 | HostedScan Security | No | $39/mo | Cloud | Internet | Yes | 8.8 |
| 4 | Pentest-Tools Port Scanner | Yes | $95/mo | Cloud | Internet | Yes | 8.7 |
| 5 | Angry IP Scanner | Yes | Free | Desktop | 8.6 | ||
| 6 | Masscan | Yes | Free | Cli | Internet | Yes | 8.5 |
| 7 | RustScan | Yes | Free | Cli | Network | Yes | 8.4 |
| 8 | portwave | Yes | Free | Cli | Internet | Yes | 8.3 |
| 9 | Unicornscan | Yes | Free | Cli | Network | Yes | 8.2 |
| 10 | ZMap | Yes | Free | Cli | Internet | No | 8.1 |
| 11 | Farsight | Yes | Free | Self-hosted | Internet | Yes | 8.0 |
| 12 | PortScan.com | Yes | Free | Cloud | Host | Yes | 7.9 |
| 13 | Nmap Online Scan | Yes | $4.99/mo | Cloud | Internet | Yes | 7.8 |
| 14 | NetsCLI | Yes | Free | Cli | Network | Yes | 7.7 |
| 15 | Sherlock Forensics Port Scanner | Yes | Free | Desktop | Network | Yes | 7.6 |
Head-to-Head
- Naabu vs Nmap
- Naabu vs ScanSearch
- Naabu vs HostedScan Security
- Naabu vs Pentest-Tools Port Scanner
- Naabu vs Angry IP Scanner
- Naabu vs Masscan
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update