TOOL DIRECTORY
Jianxu Lab
These pages address recurring problems in discovery, data preparation and business reviews. Calculations run in your browser. We store structured usage summaries such as tool names, anonymous visitor IDs and result bands to understand user needs. We do not store files, keys, URL content, exact financial amounts or free-text entries. Read the data policy
Project requirements organizer
Turn scattered ideas into target users, core workflows, first-release scope and questions to resolve next.
Enterprise document search demo
Split text into passages, retrieve relevant content for a question and show sources to explain the retrieval stage.
Automation value calculator
Convert staffing, task duration and frequency into saved hours and an estimated payback period.
MVP scope planner
Select product format, roles, capabilities and integrations to generate first-release suggestions, later scope and key risks.
Excel / CSV data health check
Check missing fields, duplicate rows, column formats and anomalies. Files are parsed only in your browser.
Software project budget planner
Estimate initial investment from product type, roles, modules, integrations and data migration.
Inventory & replenishment calculator
Estimate reorder timing and quantities from stock on hand, average daily sales, lead time and safety stock.
Website SEO / GEO checker
Check titles, structured data, sitemaps, robots rules and basic information supporting AI search.
{ "event": "paid",
"orderId": "A1024",
"verified": true }Webhook signatures & JSON debugger
Format JSON, generate HMAC-SHA256 signatures and verify callback signatures without sending requests.
Advertising return calculator
Calculate CPL, CAC and ROAS from spend, leads, conversion, average order value and gross margin.
Cash runway calculator
Estimate operating runway from available cash and monthly net burn for rolling monthly reviews.
Handmade product pricing calculator
Include materials, labor, packaging, platform fees and target profit rather than pricing from materials alone.
Natural image palette extractor
Extract dominant colors from a local image into a simple HEX palette for brand and website references.
Nutshell wind chime brand website
A fresh mobile handmade-brand website demo with products, material stories, filters and enquiry links.