A free, anonymous Contrast Security SCA alternative for dependency scanning

By Rushabh Shah, Senior Software Developer · 2026-09-07

Contrast Security's SCA is built around a genuinely different signal: instead of only reading manifests, it instruments the running application (IAST-style) to see which vulnerable dependencies are actually *executed* in practice, then combines that with build-time scanning across 30+ languages. That runtime-verified reachability is a real differentiator from static-only tools — but it requires deploying and running Contrast's agent inside your application, not just pointing it at a file.

DepWarden is a free, anonymous alternative for the case where you just need a fast, static read on a project's dependencies — no agent to install, no application to run. Paste a manifest, a lockfile, or an SBOM — or point it at a public repo — and get results in seconds, in a private, session-isolated workspace. No account, no runtime instrumentation, and it never receives your source code — only the dependency manifest text.

Exploitability-first prioritization

Every component is checked against the full OSV mirror, then enriched with CISA KEV (actively exploited) and FIRST EPSS (exploit probability) — a short "fix these first" list instead of a raw CVE count, free on every scan.

What Contrast does that DepWarden deliberately doesn't

To be fair: knowing a vulnerable dependency was actually executed at runtime — not just present, not just theoretically reachable, but genuinely exercised in a real request — is a stronger signal than any static analysis can produce, static or manifest-based. That requires running Contrast's agent inside your application in a real environment, which is a fundamentally different deployment model than a stateless, anonymous manifest scan. If you need runtime-verified exploitability, that's the right category of tool.

What DepWarden covers on every scan, free, no agent required

Typosquat and dependency-confusion detection, OpenSSF Scorecard health, deprecated and end-of-life packages, plus a full compliance round-trip — ingest an existing CycloneDX or SPDX SBOM, export a CycloneDX SBOM, an OpenVEX document, and a NOTICE / license-obligations file.

Repeat scans with no account

Connect a GitHub, GitLab, Bitbucket or Azure DevOps repo branch with a personal access token and attach a schedule — daily, weekly or monthly — and DepWarden re-scans it automatically and emails a report. No token retained beyond the scan.

Try it: paste a pom.xml or package-lock.json and see prioritized findings in seconds — no sign-up, no agent to deploy.