AI tools › App security & leaked keys

Best AI tools to check if an app is safe to launch

Find exposed API keys, open databases and vulnerable code before your users do. Ranked by real usefulness, updated Nov 15, 2026.

The ranking

#1
GitGuardian ↗ Free plan + paid
Best for: Catching secrets and API keys committed to your Git repos, with alerts.
#2
TruffleHog ↗ Free
Best for: An open-source scanner that finds and verifies leaked credentials in repos, files and buckets.
#3
Semgrep ↗ Free plan + paid
Best for: Static analysis that flags insecure code patterns, dependencies and secrets.
#4
Snyk ↗ Free plan + paid
Best for: Finding vulnerable open-source dependencies and getting fix pull requests.
#5
Supabase Security Advisor ↗
Best for: Checking a Supabase project for tables without Row Level Security and other risky settings.

How we rank (ranking v1, updated Nov 15, 2026)

Ranks are Milo's editorial judgment (v1, Nov 15, 2026), based on each tool's official documentation, product pages and public pricing pages, all checked on that date. Each tool is scored on four questions: (1) Does it finish the job end to end for a non-expert? (2) How good and reliable is the result? (3) How cheap is it to get started? (4) How mature and widely used is it? Hands-on tests and reader reports will be added weekly, and ranks will move when they show something new. Sponsors cannot buy or change a rank. Pricing tier is shown only when we confirmed it on the tool's official pricing page; 'freemium' means a free plan plus paid plans, 'paid' means no free plan (a trial or starter credits may exist).

Use cases for this job

Learn the hard way: an AI security audit missed a committed token

A developer asked Claude Code to audit a repo for secrets before going public. It missed a Contentful management token in .claude/mcp.json, a file Claude Code had created, which had been committed into git history.

Source: FieldNotes AI · Mar 7, 2026

Copy the prompt

Audit this repo for secrets before I make it public. Scan the full git history (not just current files), including hidden folders like .claude/, .cursor/ and .vscode/, plus .env files and CI configs. List every credential with file, commit and type, then tell me which to rotate and what to add to .gitignore.

Best AI tools to check if an app is safe to launch →

Claude CodeSecurity

New launches in App security & leaked keys

Nov 12, 2026
Daybreak Red Team and Defense Factory by OpenAI
Agent-based tools that test web apps for weaknesses and prepare patches for engineers to review. Red Team is in early access.
Source: The Register ↗ · App security & leaked keys

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