Head-to-head · OSINT Tools
Intelligence X vs theHarvester
Intelligence X leads on 0 checks, theHarvester on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreIntelligence X · 7.7/10
- Free planboth
- Free trialonly Intelligence X
Intelligence X scores higher on our rubric for osint tools: 7.7 against 7.5 out of 10; our editors rank them #6 and #8.
Intelligence X is the better fit for searching indexed leaks and historical web data. theHarvester is the better fit for free domain and organization reconnaissance.
- Intelligence X fits best
Searching indexed leaks and historical web data
- theHarvester fits best
Free domain and organization reconnaissance
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Side by side
| Feature | Intelligence X 7.7/10 Visit ↗ | theHarvester 7.5/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 7.7 | 7.5 |
| Ranking | #6 in OSINT Tools | #8 in OSINT Tools |
| Best for | Searching indexed leaks and historical web data | Free domain and organization reconnaissance |
| Pricing model | Free plan + paid | Free |
| Starting price | — | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | 7 days | — |
| Deployment | Cloud | Self-hosted, Cloud |
| Platforms | Web | Linux, Web |
| Support | Community, Docs | |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features Intelligence X 4/6 · theHarvester 4/6 | ||
| Social source search | Not checked yet | — |
| Domain & IP lookup | ✓ | ✓ |
| Monitoring & alerts | ✓ | ✓ |
| Link analysis | Not checked yet | Not checked yet |
| API access | ✓ | ✓ |
| Data export | ✓ | ✓ |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | Intelligence X is an OSINT search engine and data archive for researchers, investigators, and teams looking across public web sources, paste sites, leaks, and darknet collections. Searches can use selectors such as email addresses,… Read the review → |
For early-stage reconnaissance in an authorized security assessment, theHarvester collects public-source intelligence about a domain or organization. It draws from categories including search engines, certificate transparency logs, DNS… Read the review → |
Strengths and trade-offs
Intelligence X — where it wins
- Searches paste, darknet, leak, Whois, DNS and public-web sources
- Searches selectors from email addresses to IPs and crypto addresses
- Offers historical files, alerts, exports and API access
Where it doesn't
- Search limits and alert allowances vary by paid plan
- Identity Portal features require that separate plan
- Enterprise-focused tools may exceed solo investigators' needs
theHarvester — where it wins
- Collects intelligence across search, certificate, DNS, code, and threat sources
- Normalizes findings and lets users review evidence and hostname changes
- Offers scheduling, a local REST API, and JSONL or SQLite exports
Where it doesn't
- Its verified focus is domain and organization intelligence, not social sources
- Setup and interfaces can vary as the project is rapidly updated
- Its documentation supports Linux installation; broader OS support is unverified
- Intelligence X7.7/10 · Free plan · 7-day trial
A broad OSINT search engine for indexed leaks and historical web data.
Visit Intelligence XFull verdict → - theHarvester7.5/10 · Free plan
A free, open-source tool for domain reconnaissance with local history, scheduling, and API access.
Visit theHarvesterFull verdict →
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- Censys Attack Surface Management vs Intelligence X
- Censys Attack Surface Management vs theHarvester
All OSINT tools comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update



