'%20fill='%231C48DD'/%3e%3crect%20width='26.6139'%20height='7.01829'%20rx='3.50914'%20transform='matrix(-0.499958%20-0.866049%20-0.866001%200.500041%2037.7142%2021.771)'%20fill='%23FFCA29'/%3e%3cpath%20d='M13.4697%200C15.4076%20-8.4718e-08%2016.9794%201.57091%2016.9795%203.50879V20.4912C16.9794%2022.4291%2015.4076%2024%2013.4697%2024C11.532%2023.9998%209.96108%2022.4289%209.96094%2020.4912V7.01855H3.50977C1.57167%207.01855%200.00017846%205.44782%200%203.50977C-1.69425e-07%201.57156%201.57156%201.69462e-07%203.50977%200H13.4697Z'%20fill='%231C48DD'/%3e%3crect%20width='7.01887'%20height='7.01809'%20rx='3.50905'%20transform='matrix(-4.37066e-08%20-1%20-1%204.37162e-08%2054.5601%207.01886)'%20fill='%231C48DD'/%3e%3c/svg%3e){kind=small}
Fees rise every year
Selling, transaction and free-shipping fees can reach about 17% of each order. The more you sell, the more you lose.
E-commerce development, try a real store before you decide
E-commerce Websites for Brands That Want Their Own Store
Sell on your own domain, with no commission on any order
From ฿199,000 ·
selling in about 8 weeks
01 · Your customer
Taps "Buy Now" on their phone
02 · The system
Checks the slip with the bank
03 · You
Print the packing slip and ship
TumWebSME builds standard e-commerce stores, set up fresh for every brand, from THB 199,000, ready to sell in about 8 weeks. Customers pay by PromptPay transfer and the system checks their slips automatically. The back office is in Thai and English, and a live demo store is open for you to try before you hire us.
- 10+ years building for Thai businesses
- A real store to try first
- See our work
- No per-order commission
- PromptPay + slip checks
- Thai back office
- Thai + English
- 90-day warranty
Selling Well, but the Margin and the Customers Aren't Yours?
Marketplaces and social media are the right place to start. Once sales pick up, these four start eating your margin and your day.
Chat, check, copy, repeat
Customers send slips in chat, you check each one in your banking app and copy the order into a spreadsheet. And AI-made fake slips get harder to spot every month.
Stock that doesn't match the shelf
Stock counted by hand across channels ends in overselling and apology messages.
Your regulars belong to someone else
Your repeat buyers belong to the platform: no list, no number, no way to sell to them directly.
Example statement: THB 100,000 in monthly sales
- Sales
- 100,000
- Selling fee
- −12,000
- Transaction fee
- −3,000
- Free-shipping program
- −5,000
Left80,000
THB 240,000 a year gone
Run your own numbersFee levels change with each platform's announcements. Sources: Prachachat, FlowAccount, PEAK (read 27 Oct 2026). The 20% example is for illustration only.
Try the Real Store Yourself
to Choose Us for Your E-Commerce Site
The demo store runs the same system your store will get. Get a code, open it on your phone, and shop right up to the payment page.
- 1
Get a code in under a minute
- 2
Open the demo store on your phone (the code works for 7 days)
- 3
Pick a product, add to cart, tap Buy Now, reach checkout
The real demo store, scroll to look around
This is only a preview. Get a code to browse and check out for real on your own phone.
Get a code for the full storeGet Your Demo Store Code
An Online Store That Fits Your Customers
and Is as Easy as a Shopping App
The system is built mobile-first, to match how people shop today: mostly on their phones.
It offers a familiar, comfortable experience that meets expectations at every step.
A bottom bar with the cart in the middle
Home, categories, cart, wishlist and account stay under the thumb, with search on every page.
Buy Now skips the cart
One tap goes straight to checkout with that item. Price and buttons stay pinned at the bottom while shoppers scroll.
Sizes and colours, photos that follow
Two levels of options. Price, stock and photo follow the choice.
Low-stock badges and delivery dates
Shoppers see when to hurry and when it arrives, worked out from your shipping cut-off.
Tick what to buy now, keep the rest
Unticked items wait in the cart for next time. Shipping and "free shipping in ฿X" show before paying.
PromptPay and guest checkout
A PromptPay QR with the order amount filled in, no sign-up needed, and order tracking in 6 status tabs with tracking numbers.
One Back Office for Orders, Slips, Stock and Shipping
The back office is in Thai and English, and you run all of it yourself without calling a developer.
Payments and slip checks
When a customer attaches a slip, SlipOK checks it with the bank: right recipient, exact amount, a time inside the order window, and never used before. If it all passes, the order turns Paid on its own.
- Unclear slips are never auto-rejected; they go to your queue with the reason
- A slip already used on another order is always rejected
- Approve several at once
Stock
Stock is reserved the moment a customer orders, so you never oversell. Unpaid orders past your time limit release their stock automatically.
- Every adjustment records who, when and why
- Restock many items from a CSV file
Shipping
Print packing slips with barcodes, download a Shopee-style shipping list, add tracking numbers for many orders from a file, and the system emails your customers.
- Weight-based shipping with a free-shipping threshold
Customers
A customer list with phone numbers, lifetime spend and order history: who buys often, who bought once, who has gone quiet.
- Handles PDPA account-deletion requests
Promotions and home page
Discount codes in baht or percent, collections with their own start and end dates, banners, an announcement bar and scheduled articles.
Documents and reports
Thai PDF receipts or abbreviated tax invoices, plus sales, best-seller and sales-tax reports as CSV files for your accountant.
An 8-chapter guide with real screenshots lives inside the back office, plus one training session.
Book a Free 30-Minute TourA Store Google and AI Assistants Can Read
Every page is readable by Google and AI assistants such as ChatGPT, Gemini and Perplexity from day one. We don't promise rankings; we make sure your store is ready to be found.
- Product, price, stock, shipping and returns as structured data
- An llms.txt summary for AI, with an on/off switch
- A Google Shopping product feed, generated for you
- Images resized on upload, AVIF/WebP banners, a 2.5-second target for main content
Marketplace, Store Builder, or an E-commerce Site of Your Own
None of the three wins at everything. Here's what each one is good at.
| Marketplace | Monthly store builder | Your own store with us | |
|---|---|---|---|
| New shoppers finding you | People already go there to shop | You bring the traffic | You bring the traffic (ads, social, existing customers) |
| Fee per order | Yes, changes with platform announcements | Some plans, plus gateway transaction fees | None from us (transfer + slip). A gateway add-on carries its provider's fee |
| Customer data | Stays with the platform | Yours | Yours, with a customer list and lifetime spend |
| PromptPay + Thai slip checks | The platform's own system | Usually needs an extra app | Built in, SlipOK connected for free |
| Thai receipts / tax invoices | Whatever the platform offers | Usually needs an extra app | Automatic PDFs + sales-tax report |
| Cost | % of every order, forever | Monthly + apps + theme | One-off build + monthly Cloud+ |
| Look and brand | The platform's storefront | A ready-made theme | Your brand on a tested standard design |
| Who runs the system | The platform | You do | We handle servers, backups and security |
Scroll to see more
How Much Do Marketplace Fees Cost You a Year?
20%
An illustration, not a quote. Excludes marketing. The 20% default covers commission, the 3.21% transaction fee and free-shipping programmes on Shopee/Lazada in 2026. Sources: Prachachat, FlowAccount, PEAK (read 27 Oct 2026). Cloud+ at its starting rate; the actual rate depends on usage.
A year in fees
360,000 THB
Over 3 years 1,080,000
Your own store over 3 years: 199,000 + Cloud+ 2,500 × 36 = THB 289,000
Fees would add up to the store + Cloud+ cost by month 8
Talk Through a Move PlanWhat an E-commerce Website Costs, All of It Up Front
E-commerce package from
฿229,000
฿199,000
Built and ready to sell in about 8 weeks · 2 payments, 50/50 (on signing and on handover)
What's included
- Everything in the storefront and back office above
- Thai and English throughout
- 2 rounds of brand styling (colours, fonts, logo, banner art)
- Up to 20 sample SKUs entered for you, plus 1 training session
- 90-day warranty after handover
- 300 Email+ emails, valid 1 year (about 100 orders)
- SlipOK slip-check connection at no charge
Not included
- Card/QR payment gateway
- Cash on delivery
- Instalments
- Zone-based shipping rates
- Automatic carrier integration
- Mobile app
- Writing or translating content (you provide it; the system takes both languages)
Monthly
- Cloud+ from THB 2,500/month: a dedicated system, daily backups, unlimited products, photos and articles (up to 10 photos per product); final rate agreed on usage
- Email+ top-up THB 2,500 per 10,000 emails, or use your own mail server
- SlipOK billed directly by SlipOK: 100 slips/month free, paid plans from THB 350/month (SlipOK's published price, may change)
Add later
- Payment gateway (PaySo, Omise, 2C2P, GB Prime Pay…) THB 50,000 per gateway
- Multiple staff accounts with roles THB 15,000
- Product import from CSV THB 15,000
- Other features beyond the standard build from THB 50,000 each
This is the standard build. If your store needs more, we always estimate it for free first.
How Long Does It Take? About 8 Weeks
Counted from the first payment and complete store details, including testing, launch and training. Keep selling on marketplaces meanwhile.
- 12 weeks
Brief and branding
Gather store details, apply your brand, sign it off
- 24 weeks
Build and store setup
Build and configure the store, connect bank transfer, SlipOK and email, add sample products
- 31 weeks
Testing and review
Full testing, your review, fixes
- 41 weeks
Go live and handover
Launch, training, handover
What you prepare
- Logo and store details
- Bank account for transfers
- Copy for 6 store info pages
- Product photos and details
- Domain name
- Banners in both languages
E-commerce Website FAQs
Straight answers before you commit to a store of your own
The standard build starts at THB 199,000, paid in 2 instalments. Monthly, Cloud+ starts at THB 2,500 and covers the server and daily backups. System email includes 300 messages in the first year, then you top up as needed. SlipOK bills you directly, starting with 100 free slips a month.
The standard build starts at THB 199,000, paid in 2 instalments. Monthly, Cloud+ starts at THB 2,500 and covers the server and daily backups. System email includes 300 messages in the first year, then you top up as needed. SlipOK bills you directly, starting with 100 free slips a month.
About 8 weeks from the first payment and complete store details, including testing, launch and training. Late details or added scope move the date accordingly.
About 8 weeks from the first payment and complete store details, including testing, launch and training. Late details or added scope move the date accordingly.
The standard build takes bank transfers with an attached slip, and the payment page shows a PromptPay QR with the order amount filled in. Card or QR payments through a payment gateway are an add-on at THB 50,000 per gateway.
The standard build takes bank transfers with an attached slip, and the payment page shows a PromptPay QR with the order amount filled in. Card or QR payments through a payment gateway are an add-on at THB 50,000 per gateway.
The system reads the QR on the slip and SlipOK checks it with the bank: right recipient, exact amount, a time inside the order window, and never used before. Only then does the order turn Paid. Unclear slips go to your queue for review, and a slip already used on another order is always rejected.
The system reads the QR on the slip and SlipOK checks it with the bank: right recipient, exact amount, a time inside the order window, and never used before. Only then does the order turn Paid. Unclear slips go to your queue for review, and a slip already used on another order is always rejected.
Keep selling on marketplaces; they are good at bringing in new shoppers. Your own store is for customers who already know your brand: no per-order commission, and the customer list is yours.
Keep selling on marketplaces; they are good at bringing in new shoppers. Your own store is for customers who already know your brand: no per-order commission, and the customer list is yours.
Compare the 3-year total, not the first month: apps, theme, transaction fees, PromptPay and slip checks, Thai receipts, and who runs the system. With us you pay for the build once plus monthly Cloud+, with no per-order fee, and our team runs the servers.
Compare the 3-year total, not the first month: apps, theme, transaction fees, PromptPay and slip checks, Thai receipts, and who runs the system. With us you pay for the build once plus monthly Cloud+, with no per-order fee, and our team runs the servers.
We enter up to 20 sample SKUs for training; you add the rest, which we recommend so you are fluent from day one. The back office comes with an 8-chapter guide with screenshots and one training session.
We enter up to 20 sample SKUs for training; you add the rest, which we recommend so you are fluent from day one. The back office comes with an 8-chapter guide with screenshots and one training session.
Yes. Request a code on this page and open the demo store on your phone right away; the code works for 7 days. For the back office, our team gives you a free 30-minute tour of every menu.
Yes, both sides, free of charge. Storefront: fill in the form on this page to get an access code by email, or ask our sales team for one, then browse and check out on your phone yourself. Back office: book a 30-minute online demo where our sales team walks you through every menu, or come and see it at our office.
We don't promise rankings, but the store is ready to be found from day one: Google and AI assistants can read every page, with structured product data, an llms.txt file and a Google Shopping feed. Bringing visitors in is still up to your ads, social and existing customers.
We don’t promise rankings, but the store is ready to be found from day one: Google and AI assistants can read every page, with structured product data, an llms.txt file and a Google Shopping feed. Bringing visitors in is still up to your ads, social and existing customers.
The system and data belong to your store. Download products with photos, orders and accounting documents yourself at any time from the back office. A full handover of source code and database is available for THB 50,000.
The system and data belong to your store. Download products with photos, orders and accounting documents yourself at any time from the back office. A full handover of source code and database is available for THB 50,000.
Free Consultation
We are happy to provide consultation on website and system services to be a tool for growing your business.
@tumwebsme Address : 89 Ramkhamhaeng 82 Alley, Ramkhamhaeng Road, Huamark Subdistrict, Bang Kapi District, Bangkok 10240, Thailand.
Business Hours : 09:00 - 21:00 (Open Daily)
