Sealed bids · Human decisions

Buying is subjective.Your marketplace should be too.

Sealabid is a sealed-bid marketplace. Buyers submit private offers in envelopes. Sellers only see how many envelopes exist — not the amounts — until the listing ends. Then, within 2 hours, the seller opens them and chooses who to sell to based on price and profile — or decides there's no sale.

Private offers (no public outbidding)
Profiles matter (trust + story)
Seller chooses winner (or no sale)

Everyone must register and add a card before bidding or selling. Money is only taken when a seller accepts an offer.

A listing on Sealabid

Handmade oak coffee table

Seller sees: 4 sealed envelopes — no amounts.

Ends in 3 hours

Seller has 2 hours to decide.

Subjective sale

How Sealabid fits you

1Register

Create a profile that actually matters

Sign up, verify your email, complete your profile (individual / business / charity), and add a short story. Sellers use this when choosing.

2How buying works

Submit what the item is worth to you

Place a sealed bid. You see the envelope count, not the amounts. You’re never publicly “outbid” — you just submit your true maximum.

3How selling works

List your item and choose your winner

Upload photos, write an honest description, set a private target, and choose 7, 14 or 21 days. When it ends, you have 2 hours to open envelopes and decide — or mark no sale.

Why “Buying is subjective” actually matters

Most marketplaces reward the highest visible bid or fastest click. Sealabid accepts that value is personal — and sellers may care who the item goes to.

Sealed, not public

No bidding wars. No sniping. Just one honest offer per buyer.

Profiles carry weight

A charity, small business, or collector with a story can win — even if not highest.

Seller keeps final say

After opening, sellers choose a winner — or mark no sale. No auto-accept traps.

What you agree to

  • You may not win — even with a strong offer — because decisions are subjective.
  • Sellers must decide within a fixed 2-hour window after the listing ends.
  • Buyers need a validated payment method before bidding. Money is taken only if accepted.
  • A small listing fee may apply and may be refunded on a successful sale.
Full details are in Terms & Conditions.

Quick answers

Can buyers see other bids?+
No. Buyers can see the envelope count, not the amounts.
Do sellers have to choose the highest bid?+
No. Sellers can choose based on price and buyer profile, or decide there’s no sale.
Can I edit or withdraw my envelope?+
Yes — until the listing ends. After that, envelopes lock.
When is money taken?+
Only when a seller accepts an offer.

Ready to try a different kind of marketplace?

Create your profile, list an item or place your first sealed bid. The fun starts when the envelopes open.