← Back to sanirawaas.com Free Tools & Resources

Tools that work.
Actually free.

24 calculators, AI tools, checklists and guides — organised by topic.
No paywalls. No credit card. Just useful stuff.

24 tools across 4 categories
E-Commerce · Business · Marketing · CA Capstone
From Sanira Waas — $50M+ in Ecom revenue
1,000+ students trained

E-Commerce

🧮Calculator

Amazon FBA Profit Calculator

Enter product cost, price, and category — get exact FBA fee breakdown, net margin, and ROI instantly.

Open tool →Free
📋Checklist

Amazon Product Launch Checklist

The 47-point pre-launch checklist covering listing optimisation, inventory, PPC setup, and review strategy.

Open tool →Free
📄Template

Product Research Validation Template

A structured worksheet to validate any product idea against 8 criteria before investing a single dollar.

Open tool →Free
🏷️Checklist

Shopify Store Setup Checklist

Everything to configure before your first Shopify sale — payments, shipping, and conversion optimisation.

Open tool →Free
📦Calculator

Inventory & Reorder Point Calculator

Input sales velocity, lead time, and safety stock — get your exact reorder point and optimal order quantity.

Open tool →Free
✉️Templates

Supplier Negotiation Email Templates

5 battle-tested email templates for first contact, price negotiation, sample requests, and partnerships.

Open tool →Free
🛒Calculator

Product Profit & Landed Cost Calculator

True landed cost, margin %, and minimum viable selling price — including duties, shipping, and all fees.

Open tool →Free
✍️AI Generator

Product Listing AI Generator

Describe your product — get a conversion-optimised Amazon or Shopify listing with title, bullets, and copy.

Open tool →Free

Business Optimization

📊AI-Powered

Unit Economics & Break-Even Analyzer

COGS, variable costs, fixed overhead → contribution margin, break-even, and AI commentary on your numbers.

Open tool →Free
📈Template

Monthly Margin Dashboard Template

A Google Sheets-style dashboard tracking gross margin, contribution margin, net margin, and MoM trends.

Open tool →Free
🤖Guide

AI Tools for Business Owners — Starter Pack

The 10 AI tools that deliver real ROI for SME owners, with specific use cases and setup instructions.

Open tool →Free
🔍Calculator

Customer Acquisition Cost Calculator

True CAC by channel (not just ad spend), compared against LTV — identify which channels are actually profitable.

Open tool →Free
🏗️Scorecard

ERP Selection Scorecard

A weighted scoring template to objectively evaluate ERP options against your business requirements.

Open tool →Free
📉Free PDF

Revenue Maximisation Playbook

AOV optimisation, repeat purchase systems, and win-back campaign frameworks — with worked examples.

Open tool →Free

Digital Marketing

🎯Calculator

Meta Ads ROAS & Break-Even Calculator

Minimum ROAS to break even and your target profitable ROAS — with personalised insight for your numbers.

Open tool →Free
📧Templates

Email Flow Templates (5-Pack)

Copy-ready sequences for Welcome, Abandoned Cart, Post-Purchase, Win-Back, and Browse Abandonment.

Open tool →Free
📐Builder

UTM Builder & Campaign Tracker

Generate consistent UTM parameters for all campaigns — with a tracker table to manage all your links.

Open tool →Free
📊Free PDF

Marketing Attribution Guide

Attribution models explained, how to set up GA4 correctly, and how to calculate real channel performance.

Open tool →Free
🎬Template

UGC Creator Brief Template

A complete brief to send creators — covering hook, key messages, deliverables, and usage rights.

Open tool →Free
📱Checklist

TikTok Shop Launch Checklist

Complete setup checklist — seller registration, affiliate programme, first LIVE session and beyond.

Open tool →Free

CA Sri Lanka Business Capstone

📝Template

Verbal Pitch Structure Template

Fill-in-the-blanks pitch template covering Opening, Issue ID, Analysis, and Recommendations for Stage 2.

Open tool →Free
Worksheet

10-Minute Exam Planning Worksheet

A structured planning sheet for the Stage 3 exam — time allocation tables, annotation prompts, and integration checkboxes.

Open tool →Free
📋Checklist

Pre-Exam Preparation Checklist

The 30-point checklist covering knowledge revision, pre-seen analysis, pitch practice, and exam-day prep.

Open tool →Free
🗂Free PDF

Capstone Knowledge Map

All key frameworks — PESTLE, Porter's Five Forces, Balanced Scorecard, and more — with application notes.

Open tool →Free
🤖AI-Powered

CA Capstone Answer Scorer

Paste your practice answer — AI scores it against the 5 marking criteria with examiner-style feedback.

Open tool →Free