
CoFynd
Matchoffice.sg
OUR Hub
Pivotdesk
Think Innovative
Secure the perfect home for your business in Asia

Invoice Simple
Omni Calculator
Zoho Invoice
Wave Financial
Free calculators and invoices for freelancers and online sellers: payment and marketplace fees, pricing, 1099 taxes and PDF invoices.
Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | osdoro.com.sg | biztoolstack.com |
| Pricing | — | |
| Platforms | — | |
| Company | 2020 | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


Osdoro is Asia's premier and largest network of coworking space, dedicated desks, office rentals and office spaces. Osdoro have over 1000 office spaces across Singapore. All the listings available in any major city are aggregated on their platform making it easier todiscover, compare prices and...
BizToolStack is a free set of calculators and document tools for freelancers, small businesses and online sellers. Payment fees: Stripe, PayPal, Venmo and Square fee calculators, with a "what to charge" mode to receive a target amount. Marketplace seller fees: Etsy, Poshmark and Mercari...
What each product offers, as listed by its team.


Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing osDORO and BizToolStack.
BizToolStack's answer:
Every fee and tax rate links to its official source (IRS, SSA, Etsy, Square, PayPal and others) with the date it was last verified, and the site refuses to build if a rate goes unchecked for more than 92 days. All calculations run in your browser with exact decimal math, and nothing you type is sent to a server.
BizToolStack's answer:
It is free with no signup, and it covers the whole job in one place: set a price, check what Etsy or Stripe will take, estimate the tax on what you keep, then send an invoice. Most fee calculators only cover one platform and do not show where their rates come from.
BizToolStack's answer:
US freelancers, independent contractors, small business owners and online sellers on Etsy, Poshmark, Mercari and similar marketplaces.
BizToolStack's answer:
BizToolStack started as a simple markup calculator and grew into a set of tools for the questions small sellers and freelancers ask every week: what will this platform take, what should I charge, and how much should I set aside for taxes.
BizToolStack's answer:
Astro, React and TypeScript, with big.js for exact decimal math, Valibot for data validation and pdfmake for PDF generation. The site is static and runs on Cloudflare.
Share your experience with using osDORO and BizToolStack. For example, how are they different and which one is better?
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Helping you make rational decisions, one calculation at a time.
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100% free online invoicing software for small businesses.
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