Catch what breaks your n8n templates — before your buyers do.

FlowProof's free CLI scans any n8n workflow export for what breaks it on import — leaked secrets, broken connections, version drift, missing nodes — offline, on your machine, no API keys. Pro repairs what's safe, certifies what passes, and hands you a client-ready deliverable.

For template sellers, freelancers, and anyone who's been burned by a broken export.

See it work — real output, real workflowfree CLI · run it yourself

$ flowproof check ai-blog-to-social.json

NOT IMPORTABLE · fidelity 0/100 · 3 blockers · 6 manual steps
✖ CRITICAL embedded_credential  'httpHeaderAuth' embeds raw fields — leaks secrets if shipped
✖ CRITICAL hardcoded_secret    a parameter value looks like a hard-coded secret — never ship this
✖ CRITICAL dangling_target     connection 'Format' → 'Send Tweet' points to a node that doesn't exist
▲ deprecated_node        'n8n-nodes-base.cron' is deprecated → migrate to scheduleTrigger
▲ community_node         needs 'n8n-nodes-discord' installed or the import shows a broken node

That's the free check on one real community workflow — it finds the secret leak and the broken edge a buyer would hit, before they do.

Receipts, not promises. Tested 2026-06-12 against 20 real community workflows from 3 sources, arbitrated against a live n8n import: FlowProof's import pass/fail verdict matched the live importer on all 20 — about half genuinely fail to import as shipped. It only says “fails import” when a live n8n actually refused it. Self-test suite: 0 failures. The CLI is open source — read every line before you trust it.

A real certificateactual tool output

We took the broken workflow above (leaked secret + dead connection), ran fix then certify. Real result:

✅ VERIFIED (setup required) - imports cleanly
FlowProof v1.1.0  -  5 nodes  -  fidelity 56/100  -  imports cleanly: yes
sha256: db4b79ef5296a150...
✔ structure      ✔ security (no embedded creds/secrets)
✔ version_integrity   ✔ node_availability
one-time setup: install 1 community node, re-select 2 credentials

Honest by design: it reports "setup required" (fidelity 56), not a fake 100 - it only certifies what is true.

FlowProof Pro$19 one-time

For your own templates: fix auto-repairs what's safe to repair (strips leaked secrets, prunes broken connections, de-dupes nodes), certify emits a content-hashed “FlowProof Checked” certificate, and you get a plain-English handover (repair list + setup checklist) — so you ship a clean workflow and can prove it.

Secure checkout on Gumroad · 30-day money-back, no questions.

Not ready? Tell me what's missing.

Built by AkuchiS · free CLI (MIT) on GitHub · questions: [email protected] · runs entirely on your machine — we never see your workflows.