A complete guide and help with conducting a free background check. Learn how to use public records, court records, criminal databases and other official sources to research individuals at no cost. Every resource listed below links to an official government portal or reputable free service — no paid subscription required.

How to Conduct a Free Background Check: Step-by-Step

Follow this systematic approach to build a comprehensive profile using only free, official sources.

50+ Free state criminal databases
$0 Cost for most public records
96M+ FBI NCIC records (law enforcement)
3,143 U.S. counties with court records

Step 1: Start with State Criminal Records

Most states maintain a free or low-cost criminal records repository through their state police or Department of Public Safety. Search your target state using our State Criminal Records Directory.

Step 2: Check County Court Records

County courts are where most criminal cases are filed. Many counties offer free online case search portals. Use our Court Records Directory to find the right county court system.

Step 3: Search Federal Court Records (PACER)

The PACER system provides access to federal criminal cases, civil lawsuits, and bankruptcy filings. Registration is free, and fees are waived for usage under $30 per quarter.

Step 4: Check Sex Offender Registries

The NSOPW searches all 50 state registries simultaneously. Individual state registries may have more detailed information.

Step 5: Search Inmate and Corrections Records

The Federal BOP Inmate Locator covers all federal inmates from 1982 to present. Check our State Inmate Search Directory for state-level searches.

Step 6: Verify Identity with Public Records

Cross-reference findings using property records, voter registration databases, and vital records. These help confirm identity and uncover address history.

ℹ️ Important: No single database contains every record. A thorough free background check requires searching multiple sources across different jurisdictions.

Free vs. Paid Background Checks

Feature Free (DIY) Paid Service
Cost$0 (PACER waived under $30/qtr)$20–$100+ per report
Turnaround1–4 hours of manual searchingMinutes to 3 business days
CoverageDepends on states/counties checkedMulti-state, multi-county bundled
FCRA compliantNot applicable (personal use)Yes (through CRAs)
Best forPersonal due diligence, self-checksEmployment, housing, lending
⚠️ Legal Note: Free background checks are for personal information purposes only. Employment, housing, or credit decisions require FCRA-compliant reports. See our Background Check Help page for details.

Frequently Asked Questions

Can I run a background check on someone for free?

Yes. Most state criminal record repositories, county court websites, the National Sex Offender Public Website (NSOPW), and the federal Bureau of Prisons inmate locator are free to search. Federal court records through PACER are also effectively free for light use (fees waived under $30 per quarter).

What is the most comprehensive free background check?

There is no single free database that covers everything. The most thorough free approach combines state criminal repositories, county court records, the NSOPW sex offender registry, PACER for federal cases, and the BOP inmate locator.

Is it legal to run a background check on someone?

Searching public records is legal for anyone. However, using results for employment, housing, credit, or insurance decisions is regulated by the FCRA and requires a licensed Consumer Reporting Agency (CRA) and the subject's written consent.

How do I check my own criminal background?

Search your name in criminal record repositories for every state where you have lived. For a comprehensive check, submit fingerprints to the FBI for an Identity History Summary ($18). Also check county courts, NSOPW, and your credit reports at AnnualCreditReport.com.

How far back do free background checks go?

Criminal convictions typically remain on record permanently. For FCRA-regulated employment checks, non-conviction records generally cannot be reported beyond 7 years for positions paying under $75,000. Convictions have no federal reporting time limit.

What won't show up in a free background check?

Free searches typically will not include: sealed or expunged records, juvenile records, records from states/counties you didn't search, military disciplinary records, private employer records, medical records, or foreign jurisdiction records.