Open-source AI tools for
Etsy sellers & operators
Battle-tested AI prompts, audit frameworks, and design intelligence built from real 6-figure store operations. Run inside Claude, ChatGPT, Gemini, or Grok. Free forever — no subscriptions, no accounts, no paywalls.
SellWren — Free Etsy Seller Tools
SellWren is the honest growth platform for Etsy sellers — real data from the official Etsy API, no guessing, no scraped numbers. Four free guest tools (Tag Verifier, Title Builder, IP Scanner, Description Builder) run instantly with no account, plus a shop dashboard with daily-synced sales, Listings Health scoring, a keyword map & cannibalization guard, and listing lifecycle tracking. Safety-first by design: rate-limited, cached, and halts itself on any Etsy warning signal. 100% free — no data stored.
Mischief — Desktop Entertainment Platform
The open-source platform for desktop entertainment on Windows, macOS & Linux. Features 19 Flagship Companions (Zen, Kumo, Astra, Barnaby, Whiskers...), Always-On Drag-to-Move, 6 Playful Behaviors (spin, pounce, sneak, dance, hide, peek), custom image cutout import, and GIF moment capture. 100% offline with zero telemetry.
eBay & Amazon Dropship Analyzer + VERO Guard
Created by a verified developer holding Official eBay Developer Access. A floating, draggable Chrome Extension for eBay dropshippers and online arbitrage sellers. Real-time title scanning against 1,146+ VERO brand registries, 16+ category fee presets, 6 multi-retailer sourcing engines (Amazon, Walmart, Target, Google, AliExpress, CJ Dropship), 2-row minimized UI, and CSV export. 100% free & client-side.
Etsy Seller SEO System
Created by a verified developer holding Official Etsy Developer Access. The system features Caveman Output Mode (saving 70% of tokens per turn) governed by 5 Immutable System Laws. Features live autocomplete search, mobile-first title formulas (first 40 chars), guaranteed 20-character tag enforcement, and strict no-emoji description mandate. 100% free & client-side.
Etsy Shop Audit System
Empirical shop audit engine created by an officially approved Etsy Developer, powered by Python CSV data scripts (scripts/csv_analyzer.py). Evaluates Pareto revenue concentration (80/20 rule), 10-point niche coherence scoring, live diagnostic bottleneck matrix, and 3-tier action workplan. 100% free & private.
SVG Design Intelligence System (ESVG-DIS)
A research-first AI skill for digital product creators. Features First-Run Shop Intake (State 1), Single-Shop Conversation Isolation, Dynamic Keyword-to-Niche Translation Engine, Caveman Output Mode (70% token savings), 5 System Laws, 4 Binary IP Gates, and Native Etsy SEO Engine.
System Kit — AI Agent Governance Infrastructure
Portable governance infrastructure for AI-agent development teams. Download the kit, paste one setup prompt into any agent, and get instant multi-thread coordination (four-mutex model with scoped and glob CODE scopes), atomic machine-checked claims, task claim/lock queues, verification gates, push discipline, key isolation with a CI security scan, checkpoint/resume memory, and model rotation. No technical background needed — the agent asks plain-English questions, auto-detects your environment (shell/git/CI), and fills in the governance docs for you. Works with or without git. Built from real production incidents across 26+ concurrent AI-agent sessions. Plain markdown methodology, not software: works with opencode, Claude Code, Cursor, Codex, and any LLM agent.
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