// PII Crawler vs Nightfall

Scanned on your hardware, not sent to a cloud API.

Nightfall is a cloud-native DLP platform: connect your SaaS apps and AI tools through its API, and it scans your data for sensitive content in the cloud. PII Crawler is a single binary that scans files and databases on the machine you run it on, with zero outbound traffic. They overlap on detection. They diverge on where your data goes.

Last reviewed May 2026 · based on publicly available information.

PII Crawler

$497 one-time license, perpetual
Single binary · Mac · Windows · Linux
Air-gapped · 0 B outbound during scan
< 60s from download to first scan
Files, network shares, SQL databases

Try free → no signup

Nightfall

Subscription · per-seat / usage · contact sales
Cloud-native · API-first · data scanned in the cloud
SaaS + GenAI data protection
Real-time monitoring & in-app remediation
Built for cloud channels (Slack, GitHub, Drive, AI prompts)

Public marketing as of May 2026.

// the fundamental difference

Different surfaces, and a different answer to "where does the data go?"

Nightfall was built for the cloud-first company that wants to catch sensitive data moving through SaaS apps and AI tools: secrets committed to GitHub, customer PII shared in Slack, records pasted into ChatGPT. It connects to those services through its API, scans the content with ML detectors in its own cloud, and remediates in the app — redact, alert, quarantine.

PII Crawler answers a different, on-prem question: "Where is PII sitting on our files, network shares, and databases — and can I scan it without any of it leaving the box?"

If your sensitive-data risk lives in cloud collaboration and GenAI usage, PII Crawler does not cover that surface. If it lives on infrastructure you control and "nothing sensitive leaves the network" is non-negotiable, sending that data to a cloud API to be inspected is the wrong model.

// side by side

How they compare on the things that matter to a buyer.

PII Crawler

Nightfall

Cost & commitment

Pricing model

$497 one-time, perpetual license

Subscription · typically per-seat / usage-based · sales-led

Renewals

None — the binary is yours

Annual renewal · subject to repricing

Cost as you grow

Flat · unlimited users & scans

Scales with seats / data volume scanned

Procurement

Credit card · Stripe checkout

Sales-led · security review · MSA

Deployment & data flow

Architecture

Single signed binary · no agent · no daemon

Cloud-native SaaS · API integrations to your apps

Where data is processed

On the machine running the scan

Content is sent to Nightfall's cloud for scanning

Air-gapped capable

Yes · 0 B outbound during scan

No · cloud connectivity is required by design

Data leaves your environment

No · verifiable with tcpdump

Yes · that's how cloud scanning works

Time to first scan

Under a minute

Connect & authorize each integration first

Remote / isolated machine workflow

scp binary · ssh · TUI · no internet needed

Needs outbound access to the Nightfall API

Discovery coverage

Local files (PDF, Office, CSV, archives)

Yes · with OCR

Via connected cloud storage, not local disk

Network shares (SMB / NFS)

Yes

Not its surface

SQL databases

Postgres / MySQL / SQL Server · sampled in memory

Not the primary motion

SaaS apps (Slack, GitHub, Drive, Jira)

Not yet · use database / export workflows

Yes · a core strength

GenAI / LLM prompt protection (ChatGPT, Copilot)

Yes · real-time AI data protection

Detection approach

Regex + NER (en_core_web_lg) · 30+ PII types

ML detectors · accuracy-focused

Monitoring & remediation

Real-time monitoring of cloud channels

No · point-in-time scans of your targets

Yes · continuous, event-driven

Automated in-app remediation (redact, quarantine, alert)

No · reports findings, you act on them

Yes · automated workflows

Developer API / SDK to scan your own app data

CLI + JSON / CSV output to script around

Yes · detection APIs and SDKs

CI/CD integration

CLI emits JSON / CSV · --exit-code-on flag fails builds

Possible via API

Support

Email · fast · founder-led

Account manager · enterprise SLAs

Trust

Source of compliance evidence

Verifiable on your own host (tcpdump the binary)

Vendor attestations · SOC2 reports · trust portal

If the vendor goes away

Binary keeps working forever

Scanning and API access end at contract termination

Comparisons reflect publicly available information about Nightfall as of May 2026, plus our own product. Nightfall is a trademark of Nightfall AI, Inc. PII Crawler is not affiliated with Nightfall AI, Inc.

// pick the right one

We genuinely think one of these is wrong for you.

Pick Nightfall if

Your sensitive-data risk lives in SaaS apps — Slack, GitHub, Google Drive, Jira, Confluence, Salesforce.
You need to protect data flowing into GenAI / LLM tools like ChatGPT or Copilot in real time.
You want automated remediation inside those apps — redact a message, quarantine a file, alert a user.
You want a developer API / SDK to scan text and files inside your own cloud applications.
You're a cloud-native org and comfortable routing data through a vendor's cloud for inspection.
You need always-on, real-time monitoring of cloud channels, not point-in-time scans.

Pick PII Crawler if

Your PII lives in files, network shares, and databases on infrastructure you control.
Your security review says nothing sensitive leaves the network — and you need a tool that can prove it (air-gapped, zero outbound, tcpdump-verifiable).
You need to scan an isolated or air-gapped environment a cloud API can't reach.
You want a one-time price you can expense, not a per-seat subscription that grows with headcount and usage.
You want PII checks embedded in your CI/CD pipeline so a stray customer CSV fails the build.
You're prepping for a GDPR / HIPAA / PCI audit and need defensible local evidence quickly.

Try PII Crawler free → no signup

// FAQ

Questions buyers ask us about Nightfall.

They cover different surfaces. Nightfall protects data in cloud SaaS apps and AI tools; PII Crawler scans files, network shares, and databases on infrastructure you control. The overlap is detection. If your risk is cloud collaboration and GenAI, Nightfall is the right tool. If it's on-prem data, PII Crawler is.

No. PII Crawler scans on the machine you run it on, with zero outbound traffic during a scan — you can verify it with tcpdump. Nightfall is cloud-native by design: content is sent to its API and scanned in its cloud. If "nothing sensitive leaves the network" is a hard line on the security review, that's the load-bearing difference.

No. SaaS app coverage isn't our surface — we optimize for local files, network shares, and SQL databases. Connecting to cloud collaboration apps and scanning their content is exactly what Nightfall is built for.

No. PII Crawler is a point-in-time discovery scanner, not a real-time DLP layer for AI prompts. Protecting data flowing into GenAI tools is a core part of Nightfall's product. If that's the requirement, Nightfall is the right fit.

Yes — that's a design goal. PII Crawler is a single binary with no cloud dependency, so it runs on isolated subnets and air-gapped hosts where a cloud API simply can't reach. A cloud-native tool like Nightfall needs outbound connectivity to function, so it can't scan environments cut off from the internet.

Yes, and they complement each other well. Run Nightfall for your cloud SaaS and GenAI channels, and reach for PII Crawler for on-prem files, network shares, databases, and any air-gapped environment a cloud service can't touch. The CSV / JSON exports drop cleanly into a broader workflow.

// the math

$497 once. Not a per-seat cloud subscription.

Nightfall (typical)

$$,$$$+ /yr

per-seat / usage subscription · sales call required

×Billing scales with seats / data scanned

×Your data is scanned in the vendor's cloud

×Annual renewals · subject to repricing

×Cloud connectivity required · can't go air-gapped

PII Crawler vs · $200 OFF

$497 $697 once

paid for itself the day you ran it

✓Unlimited users · machines · scans

✓Air-gapped · 0 B outbound during scan

✓Binary is yours · no renewals

✓Mac · Windows · Linux + CLI + TUI

✓First scan in under 60 seconds

Buy license → $497

14-day refund · no questions asked