A free, anonymous Semgrep Supply Chain alternative for dependency scanning

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

Semgrep Supply Chain pairs SCA with Semgrep's own static-analysis engine to do codebase-aware reachability — the vendor claims it cuts false positives by up to 98% by checking whether a vulnerable function is actually called, not just present in the dependency tree. It also ships autofix pull requests and LLM-assisted upgrade guidance, with GA-level coverage for critical/high findings across 12 languages. Getting the full picture means connecting your repo and running through their signup flow, even though a "Community Edition" exists for the SAST side.

DepWarden is a free, anonymous alternative for the faster check: no repo connection required to get a first read. Paste a manifest, a lockfile, or an SBOM — or point it at a public repo — and get prioritized results in seconds, in a private, session-isolated workspace. No account, no repo access grant, 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 Semgrep does that DepWarden deliberately doesn't

To be fair: reachability analysis backed by a real static-analysis engine — actually tracing whether your code calls the vulnerable function — is a materially deeper signal than anything a manifest-only scanner can produce, and it's core to what makes Semgrep's noise reduction real rather than marketing. That depth requires source access, which is exactly the trade DepWarden is built to avoid.

What DepWarden covers on every scan, free

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 package-lock.json or requirements.txt and see prioritized findings in seconds — no sign-up, no repo connection required.