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Know your real stock, returns and payouts — Amazon, Flipkart & Meesho

All-in-one free tool for ecommerce sellers in India.

One free toolkit for ecommerce sellers in India: track dispatches, return gaps, physical inventory, GST and marketplace settlements in one place. No signup. Your business data stays in your browser unless you turn on optional Google Sheets sync.

Opens with an empty workspace — load sample data in one click to explore.

No signup
₹0 — every module free
Data stays in your browser by default
Workspace works offline (installable app)
ecommercetool.io/dashboard
Sample preview
Physical stock (sample)
1,346 pcs
Net sell (sample)
₹4,77,304
Return gap (sample)
32.35%
9
business modules
5
free standalone tools
0
signups required
₹0
cost for all modules
1,100+
automated unit tests
Marketplace Reality Check

Common Seller Headaches — Solved in Your Browser

Eliminate inventory discrepancies, untracked courier returns, and confusing marketplace payment deductions.

The Pain

“Returns come back weeks later and stock goes wrong”

The Fix

Physical stock ledger that only counts actual returns once received at your warehouse, keeping physical stock separated from predictions.

The Pain

“The payout is less than expected and nobody knows why”

The Fix

Settlement reconciliation classifying orders as Matched, Underpaid, Overpaid, Partial, or Unmatched against marketplace fee breakdowns.

The Pain

“GST and ITC are done in a messy spreadsheet”

The Fix

Automated GST & ITC engine calculating taxable values with automatic CGST, SGST, and IGST tax splits and input credit summaries.

Complete Feature Suite

Features Built for Marketplace Sellers

Every tool is designed to work in synergy, backed by a unified financial calculation engine.

Operations

Daily order fulfillment, inventory management, and return tracking

Dispatch Log

Log how many units of each SKU you dispatch each day.

You Get:Daily dispatch totals per SKU feed your stock, sales and return forecasts.
Open →

Return Gap Tracking

Compare expected returns (a forecast) with the returns you actually receive.

You Get:See the gap per SKU and date, so wrong forecasts or missing returns stand out.
Open →

Physical Inventory Ledger

Stock goes down on dispatch and up only on returns you physically receive.

You Get:Know your physical stock without spreadsheet formula drift.
Open →

Order Lifecycle

End-to-end status tracking from order receipt to dispatch, delivery, and return reconciliation.

You Get:A clear status for every order, from pending to delivered or returned.
Open →

Money

Marketplace payouts, tax compliance, and verified profit statements

Settlement Reconciliation

Compare the payout you received with the payout you expected after fees and deductions.

You Get:See exactly which settlement is underpaid and by how much.
Open →

GST & ITC Breakdown

Native Indian GST calculation engine with automated CGST, SGST, and IGST breakdowns.

You Get:CGST/SGST/IGST split and ITC offset figures to cross-check your GST working.
Open →

Profit & Reports

Net settlement, cost of goods, GST payable and net profit, by day, month or custom range.

You Get:Daily and monthly reports built from your logged dispatches, returns and settlements.
Open →

Analytics Cockpit

Period comparison, revenue and margin timelines, product leaderboard, and return risk analysis.

You Get:Actionable performance metrics and margin insights to identify your most profitable products.
Open →

Data & Reliability

Local-first architecture, complete data portability, and offline performance

Bulk CSV / Excel Import & Export

RFC 4180 compliant CSV parser and generator for orders, catalog SKUs, and dispatches.

You Get:Bring in your existing records from CSV/Excel and export clean files any time.
Open →

JSON Backup & Snapshot Restore

Full workspace snapshot downloads with schema validation and atomic rollback safety.

You Get:Complete data portability so you can back up or transfer your business anytime.
Open →

Optional Google Sheets Sync

Optional sync from your browser straight to a Google Sheet in your own account.

You Get:Back up your database directly into your own private Google spreadsheet on demand.
Open →

Installable Offline PWA

Standard Progressive Web App service worker caching for reliable desktop and mobile use.

You Get:Keep using your workspace when the internet drops, after your first visit.
Open →
Operational Workflow

How It Works

Four simple steps to track your physical warehouse stock, daily marketplace dispatches, and bank settlements.

1

Add products

Define your catalog SKUs with purchasing costs, GST rates, and marketplace prices.

2

Log daily dispatches

Record daily shipped orders manually or through fast bulk CSV / Excel spreadsheet uploads.

3

Record actual returns

Log customer returns as they physically arrive back at your warehouse.

4

Reconcile payouts & check stock

Compare marketplace bank remittances against expected amounts and inspect verified inventory.

The Logic Behind The Numbers
Invariant Financial Math
Physical stock formula
Physical stock = Opening stock − Dispatched + Actual returns
Expected returns are a prediction only — they never change your stock.
Settlement status formula
Settlement status = Received payout vs Expected payout (after commission, fees and taxes) → Matched / Underpaid / Overpaid / Partial / Unmatched
Reconciling settlements records payment history and never mutates physical stock or historical dispatch records.
All calculations run in your browser from one tested calculation engine.
Standalone Utilities

Free tools — no signup, no setup

These work on their own. You don't need any product or order data.

GST Calculator

Calculate inclusive and exclusive GST amounts with intra-state and inter-state tax breakdowns.

CGST/SGST/IGSTInclusive & exclusiveITC estimation

GST Invoice & 4×6 Shipping Label

Generate standard GST tax invoices and 4×6 thermal shipping labels ready for parcel boxes.

A4 GST invoiceThermal 4×6 labelAmount in words

QR Code Generator (incl. UPI)

Create UPI payment QR codes with an optional amount, plus URL, Wi-Fi, SMS, email and phone codes.

UPI paymentURL, Wi-Fi, SMS & morePNG & SVG

Barcode & SKU Labels

Generate EAN-13, UPC-A, Code 128 and Code 39 barcodes and print SKU label sheets.

EAN-13 & Code 128Sheet printingVector SVG

Courier & Volumetric Weight Calculator

Calculate chargeable volumetric weights against courier rate slabs to prevent shipping overcharges.

Slab ratesBox optimizationRTO impact analysis
Local-First Privacy Architecture

Zero-Cloud by Default

Your business data — products, costs, orders, inventory and settlements — is stored only in your own browser. We run no server and no database, and we never receive your data. Google Sheets Sync is optional and off by default. If you turn it on, your data goes directly from your browser to a spreadsheet in your own Google account — it never passes through our servers — and you can disconnect at any time.

Data Flow & Storage Topology
Your Browser
Calculations execute in memory
Local Storage on Device
⇄ Instant read/write locally
Your Google Sheet
Optional, off by default
Our Servers— NONE (No database, no user tracking)
Read Privacy Policy

Review our complete architecture details in our Privacy Policy (the site shows ads on public pages to keep tools free).

Under The Hood

Engineered with Modern Web Standards

Built with production-grade engineering principles: static delivery, local data persistence, and tested algorithmic invariants.

Next.js 14

App Router with static export, hosted as plain static files

Verified in codebase

TypeScript

Typed domain models across the codebase

Verified in codebase

Tailwind CSS

Curated dark mode design system with accessible contrast tokens

Verified in codebase

Installable PWA

Service worker caching enabling offline workspace availability

Verified in codebase

Browser LocalStorage Engine

Atomic schema validation with instant snapshot backup and restore

Verified in codebase

Automated Unit Tests

1,100+ automated tests covering the calculation engine and data rules

Verified in codebase
Honest Evaluation

Spreadsheet vs Typical SaaS vs ecommercetool.io

See how a browser-first, zero-database utility suite compares to traditional solutions.

Feature / DimensionSpreadsheetsTypical SaaSecommercetool.io
CostFree or low costUsually paidFree
Signup neededNoUsuallyNo
Where data livesYour device or your cloud driveUsually the vendor's serversYour browser by default
Return-gap trackingManual formulasVariesBuilt in
Settlement reconciliationManual matchingVariesBuilt in
Works offlineYesRarelyYes, after first visit
Free standalone toolsNoVaries5 free tools
Got Questions?

Frequently Asked Questions

Clear, transparent answers about local storage, calculation engines, and data privacy.

Does my data ever go to the cloud?

Your business data — products, costs, orders, inventory and settlements — is stored only in your own browser. We run no server and no database, and we never receive your data. Google Sheets Sync is optional and off by default. If you turn it on, your data goes directly from your browser to a spreadsheet in your own Google account — it never passes through our servers — and you can disconnect at any time.

What does 'local-first' actually mean for my business data?

Local-first means that your business data (product catalog, daily orders, returns, physical inventory stock, GST calculations, and marketplace settlements) is saved directly into your device browser’s LocalStorage by default. We run no server and no database, and we never receive your data. Cloud sync is optional and goes only to your own Google account. That is local-first ecommerce in practice: a free browser tool that keeps your records with you.

What is the 'single source of truth' calculation logic?

Every operational tool in ecommercetool.io—from daily dispatches to return gap analysis, monthly tax breakdowns, and settlement reconciliation—is powered by one centralized mathematical calculation engine, so the same numbers appear in every report.

Is this tool really 100% free? What's the catch?

There is no trial, no card and no paid tier. The site is supported by ads on public pages.

Why does the tool look and feel so modern and fast compared to typical free tools?

It is a static web app. Your records are calculated in your browser, so most screens do not wait for a server.

What happens to my data if I clear my browser cache or switch devices?

Data Persistence Notice: Local browser storage is user-controlled.

Because your data is stored locally in your browser, clearing your browser cache, browsing history, or switching to another device or browser will clear local records. To ensure absolute data safety, we provide a built-in One-Click JSON Backup & Restore in Settings. We strongly recommend downloading a backup snapshot at the end of each business week.

Is ecommercetool.io a Unicommerce alternative with no subscription fee?

For small sellers who mainly need orders, stock, returns, GST and settlement checks, it can be: every module is free, with no subscription fee and no signup. It is not a like-for-like replacement. Unicommerce is a subscription platform built around marketplace integrations, while ecommercetool.io runs in your browser and you add data by hand or by CSV import.

Do I need to register, create an account, or log in?

No. You can open any tool or dashboard and start calculating immediately. There are no registration forms, no email verifications, and no password requirements.

Can I use ecommercetool.io on mobile phones and tablets?

Yes. The layout adapts to phones, tablets and desktops. You can manage orders, verify settlement gaps, and generate invoices on phones, tablets, and desktop workstations.

How does the GST and tax invoice generator handle interstate vs intrastate sales?

It compares the seller's state with the place of supply. Same state: the tax is split into CGST and SGST. Different states: the full tax is charged as IGST. The invoice also shows the taxable value and the amount in words.

Do you show ads?

Yes. Ads appear on most public pages to keep the tool free. They never appear on the Dashboard or on legal pages. We never send or share your business records with advertisers.

Which marketplaces is it built for?

Amazon, Flipkart and Meesho sellers in India, plus any seller who wants to track dispatches, returns and payouts.

Instant Access

Start in 10 seconds — no signup.

Looking for the best zero-cost software for small online sellers in India, with a PWA that works offline? Inventory, returns, GST and settlements are all here, free.