Offer Compare Board
Compare property costs, payment deadlines and unknowns
FinanceOpen sourceOpen source · verified#real-estate#open-source#property-comparison
Launches Nov 2, 2026 at 00:00 UTC
What is Offer Compare Board?
Offer Compare Board is a free, open-source workspace for property buyers, agents and analysts comparing two to four written offers. It brings purchase costs, payment timing and unresolved questions into one decision sheet.
Keep every offer in its original currency. Enter closing fees, furnishing and other upfront costs explicitly: a blank fee remains unknown instead of silently becoming zero. The board separates a known subtotal from a complete upfront total and calculates purchase price per square metre when areas are comparable.
Add dated purchase-price instalments and see the amount due by a chosen deadline. Milestones must reconcile exactly to the purchase price. Export a comparison CSV, download and re-import a JSON board, optionally save it in your browser, or print a decision sheet.
Built by NovAsia Estate around buying property in Cambodia, Thailand and Bali. Calculations run locally with no account, API key or runtime dependencies. The included examples are synthetic; the tool does not invent taxes, exchange rates, rental yields or live inventory. Source code, tests and a self-contained offline edition are available under the MIT licence.
Offer Compare Board features
- Compare 2–4 offers with original currencies and explicit unknown costs
- Reconcile exact purchase-price instalments and review payment deadlines
- Export CSV or JSON, re-import a board, and print a decision sheet
Who uses Offer Compare Board and for what
- Property buyers compare written offers and prepare questions for sellers
- Agents and analysts prepare a transparent shortlist for a client
Offer Compare Board FAQ
Is Offer Compare Board free?
Yes. The hosted board is free with no account required. The complete source code and offline edition are available under the MIT licence.
Does it upload my property offers?
No. Calculations run in your browser. Local saving is optional. JSON exports can contain your own notes, so choose carefully when sharing them.
Does it compare currencies or estimate taxes?
No automatic currency conversion or tax assumptions are supplied. Each offer keeps its currency. Blank costs remain unknown, and unit prices need comparable area definitions.
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