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Seaworthy vs ChatZero

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Seaworthy compared with ChatZero
DetailSeaworthy logo SeaworthyChatZero logo ChatZero
What it doesSecurity checks for AI-built apps before launch Free AI detector for ChatGPT, GPT-6, Claude and Gemini that scores text and highlights likely AI-generated sentences
StageNot given Not given
FoundedNot given Not given
Based inGB Not given
Pricing modelFreemium Free
PricingFree: All checks, terminal and JSON output, exit codes for CI. Pro: £99/year or £12/month, includes HTML reports, scan history, comparison features, priority support, 2 machines. Agency: £349/year, includes white-label reports, scan multiple projects in one report, 10 machines. Not given
Key features
  • Detects leaked secrets including API keys, passwords, and LLM keys in browser code
  • Checks database and storage security including row-level security policies and open Firestore rules
  • Identifies API route and payment vulnerabilities including missing auth checks and unverified webhooks
  • Detects AI and agent security issues including system prompt injection and unsafe model output rendering
  • Scans dependencies for known vulnerabilities using OSV database
  • Runs entirely locally with code never leaving your machine
  • Works offline and integrates with CI pipelines using environment variables
  • Provides fix suggestions and AI-ready prompts for each finding
  • Supports multiple frameworks including Next.js, React, Vue, Svelte and platforms like Supabase, Firebase, Stripe
  • Generates shareable HTML reports and tracks scan history with Pro plan
  • Sentence-level highlighting of AI-like text
  • Paste text or upload files (.txt, .docx, .pdf)
  • Detects patterns from ChatGPT, GPT-6, Claude, and Gemini
  • No sign-up or account required
  • Private text processing
  • Minimum 50 words required for checking
  • Identifies repetitive vocabulary and generic wording patterns
  • Works in browser without installation
What makes it different
  • Designed specifically for security gaps that AI coding tools create
  • Code never leaves your machine, with zero uploads required
  • Low false alarms through context-aware checking of actual code behavior
  • Free tier includes all core checks with no limitations
  • Source-available license with code readable on GitHub
  • Sentence-level highlighting shows exactly which parts appear AI-generated, not just a percentage
  • Detects multiple AI models including ChatGPT, Claude, and Gemini
  • Optimized for ChatGPT and newer GPT-6 style text
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)00
Referring domains (Majestic)00

4 details filled in for both companies.

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