Free Shadow IT Detection Tools

A handful of vendors now offer a genuinely free way to see every OAuth-connected app in your Google Workspace or Microsoft 365 tenant — no professional services engagement, a report in minutes. But "free" covers at least four different things in this category, and knowing which one you're looking at matters: a perpetual free scanner, a time-boxed free trial, a free tier of a paid platform, and the native controls already sitting in your admin console are not the same offer. Here's what's actually free in 2026, what each option shows you, and where the free version stops.

• A real, perpetually free tier exists for OAuth-based shadow IT discovery in 2026 — Synk.to, AccessOwl, Waldo Security, and YeshID all offer no-cost scanners that connect to Google Workspace and/or Microsoft 365 and return an inventory in minutes.
• Not every "free" listing is the same offer: Nudge Security's much-cited free option is a two-week full-access trial, not a standing free tool — worth knowing before you plan around it.
• Free tools can disappear. Stitchflow's well-regarded free Shadow IT Scanner has been sunset entirely, a reminder that a one-off scan is worth less than a vendor with a durable reason to keep a free tier alive.
• Google Workspace and Microsoft Entra ID both ship native, no-cost app-access controls — but they surface configured apps with a 24–48 hour delay, don't risk-score anything, and won't alert you when a new risky grant appears.
• Synk.to's free scanner connects to Google Workspace or Microsoft Entra ID via OAuth and returns a complete, per-app, per-scope inventory with a risk score in under five minutes, with no credit card required.

What "Free" Actually Means in This Category

Before comparing tools, it's worth separating four offers that all get marketed as "free shadow IT detection":

• A perpetual free scanner. A standalone tool, usually a one-time or repeatable scan, that a vendor keeps free indefinitely — typically as a lead-generation front door to a paid platform, but functional and free on its own.
• A time-boxed free trial. Full access to a paid platform for a set number of days or weeks. Genuinely useful, but it ends, and it's not the same commitment as a tool built to stay free.
• The free tier of a freemium platform. A permanently limited version of a larger paid product — often capped on app count, refresh frequency, or seats.
• Native admin console controls. Functionality that's already included with Google Workspace or Microsoft 365 licensing — free in the sense that there's nothing new to buy, but built for general administration, not shadow IT detection specifically.

All four show up in "free shadow IT tool" search results. Only the first is actually free with no clock running.

Free Standalone OAuth / Shadow IT Scanners

These four run a real scan against your identity provider and hand back a usable inventory without asking for payment:

Synk.to

Synk.to connects to Google Workspace or Microsoft Entra ID via OAuth in read-only mode and produces a complete inventory of every SaaS and OAuth app, detect vendor risk based on multiple factors, identify the users who consented, the scopes granted — in under 5 minutes, with no credit card required. It's built identity-first, so AI tools, non-human identities, and standard SaaS apps all show up in the same risk-ranked catalog rather than separate reports.

AccessOwl

AccessOwl's free Shadow IT Scanner connects to Google Workspace or Microsoft 365 and surfaces every app in use, the users associated with each one, and the OAuth scopes granted. It's positioned as an entry point into AccessOwl's broader access-management platform (provisioning, access requests, access reviews), so the scan itself is free but the remediation workflow sits behind the paid product.

Waldo Security

Waldo Security's free OAuth discovery tool inventories every SaaS app connected to Google Workspace or Microsoft 365, flags the associated OAuth grants, and buckets each one into High/Medium/Low risk categories. Like AccessOwl, it's a funnel into Waldo's paid SSPM platform, but the discovery scan itself doesn't require payment.

YeshID

YeshID's free assessment tool is worth calling out for how it handles data: it runs entirely client-side, reading which third-party apps have Google Workspace OAuth access and what scopes they hold, without sending that data through YeshID's own servers. The tradeoff is scope — it currently covers Google Workspace only, with no Microsoft 365/Entra ID equivalent.

Free Trials Worth Knowing (and Why They're a Different Offer)

Nudge Security is frequently listed alongside the free scanners above, and it's worth including — but on different terms. Rather than a standing free tool, Nudge offers full platform access for a two-week trial with no credit card required, using its own discovery method (correlating SaaS signups from corporate email metadata) rather than a pure OAuth scan. That's a legitimately useful way to evaluate a full shadow IT platform before buying, but it's a trial clock, not a tool you can rerun indefinitely at no cost. Plan a Nudge trial around getting a decision made, not around ongoing free monitoring.

The Free Option You Already Have: Native Admin Console Controls

Before evaluating any third-party tool, it's worth knowing what's already included in your existing Google Workspace or Microsoft 365 licensing:

• Google Workspace: Admin console → Security → Access and data control → API controls → App access control lets you view every third-party app with OAuth access, the scopes each one holds, and which apps are pending review.
• Microsoft 365 / Entra ID: Enterprise applications in the Entra admin center, or Microsoft Defender for Cloud Apps, surfaces connected OAuth apps and their permissions in a comparable way.

These are genuinely free — there's nothing new to license — but they have real limits for shadow IT detection specifically: newly authorized apps typically don't appear for 24–48 hours, there's no risk scoring based on scope sensitivity, review is entirely manual, and there's no alerting when a new high-risk grant shows up. They're a legitimate starting point, especially for a first look, but they're built as general admin controls, not as a detection program.

How to Choose Among the Free Options

• Which identity provider does it actually cover? Some free scanners are Google Workspace-only; confirm Microsoft 365/Entra ID coverage if you need it, or vice versa.
• One-time scan or ongoing visibility? A single free report is a snapshot. If the free tier doesn't support rerunning the scan or alerting on new grants, you'll need a plan for staying current between scans.
• Does it score risk, or just list apps? A flat list of connected apps is a starting point; scope-based risk scoring (which apps hold Gmail, Drive, or admin-level access) is what actually tells you where to look first.
• What happens to your data? YeshID's client-side model is the most conservative; most others process the scan on the vendor's infrastructure — reasonable, but worth knowing before you connect a production tenant.
• What's the free tier a front door to? Every option here monetizes eventually, whether through a paid platform upsell or a broader IAM suite. That's fine — just know what you're being funneled toward before you scan.

FAQs

Is there a truly free shadow IT detection tool?

Yes. Synk.to, AccessOwl, Waldo Security, and YeshID all currently offer standalone scanners that are free with no time limit, connecting to Google Workspace and/or Microsoft 365 via OAuth to produce an inventory of connected apps and their scopes.

What's the difference between a free tool and a free trial?

A free tool (like the scanners above) stays free indefinitely and can typically be rerun. A free trial (like Nudge Security's two-week offer) gives full access to a paid platform for a limited window, after which continued use requires a subscription.

Can I detect shadow IT using only Google Workspace or Microsoft 365's built-in tools?

Partially. Both platforms include native app-access controls that show connected OAuth apps and their scopes at no extra cost. They're a reasonable starting point but have real gaps: a 24–48 hour delay before new apps appear, no risk scoring, and no automated alerting on new or high-risk grants.

Why did Stitchflow's free shadow IT scanner disappear?

Stitchflow sunset its free Shadow IT Scanner entirely; the company's site now points former users to contact support rather than run a scan. It's a useful reminder that free tools without a durable business model behind them can disappear between audits, leaving you back at zero visibility.

Do free shadow IT scanners cover AI tools, or just traditional SaaS apps?

It depends on the tool. Identity-first scanners like Synk.to catch AI tools and OAuth-connected agents in the same scan as traditional SaaS, since they're all just OAuth grants against the same identity provider. Tools built around other discovery methods (like email-signal mining) may have less complete AI-tool coverage.

How does Synk.to's free scanner compare to the others?

Synk.to covers both Google Workspace and Microsoft Entra ID from a single product, returns a per-app, per-user, per-scope inventory with a risk score (not just a list of connected apps), and takes under five minutes with no credit card. Because it's identity-first, it surfaces AI tools and non-human identities in the same scan as standard SaaS apps. Start free.