ProofPack

For second-hand sales on Vinted, Leboncoin, Wallapop and similar.

Document it before you ship it.

You're selling on a marketplace. ProofPack records what the item looked like, what was included, and that it worked — so both sides share the same record if a dispute comes up.

Completely free to use.

No credit card. No paid plan. Document every sale you need.

What the buyer sees

PlayStation 5 Slim · Disc edition

Listed on Vinted

Published
Live capture completedSerial number registeredBuyer handshake completedPackaging documentedFrozen version available

Declared defect

Good

Light scuff on the disc drive faceplate

Declared by the seller · Shown in the live video

Shared with the buyer as a public ProofPack code

A shared record of condition, defects and live video — not a marketplace, and not a payment tool.

How it works

Four steps — from your listing to the parcel leaving.

  1. 01

    Describe the item

    Say what you're selling, its condition, price and which marketplace you're using.

  2. 02

    Record the evidence

    Add accessories and defects, register the serial, and film a short guided live video.

  3. 03

    Share a simple code

    Send the buyer a public code or QR. They can open the record without creating an account.

  4. 04

    Ship with a frozen record

    Link the buyer, lock the version, and document the packaging before it leaves.

What people say

Buyers and sellers using ProofPack alongside their marketplace listings.

  • With ProofPack I could actually verify that the TV I wanted to buy worked — I watched the live capture before I paid.

    Amélie

    Buyer · Leboncoin

  • It's a huge expense for me. That's why I need additional proof of verification before I commit to the purchase.

    Marcus

    Buyer · eBay

  • I declared the scratch before shipping. When the buyer opened the ProofPack, there was nothing left to argue about.

    José

    Seller · Wallapop

  • Sharing the serial and a short live video made me feel safer buying a used laptop from someone I had never met.

    Sofia

    Buyer · Vinted

What you can put on record

  • A live video of the item working
  • The serial number (masked in public)
  • That the seller controls the chat
  • A version that cannot be edited later
  • A photo of how it was packed before shipping

For sellers

Sell with a clearer record.

  • Declare defects clearly, before a buyer finds them first.
  • Show that the item worked when you filmed it.
  • Keep the serial on file without showing it in full publicly.
  • Document how the item was packed before shipping.
  • Export a report you can keep if a dispute opens.

For buyers

See what was documented before you pay.

  • Open the seller's record with a code — no account required.
  • Check declared defects and what was included.
  • Confirm the person behind the ProofPack can reply in the marketplace chat.
  • Link yourself to the transaction.
  • Keep a frozen copy of what was recorded.

Contact us

Questions about ProofPack, partnerships, or feedback — send a message and we’ll get back to you.

Document your next sale before it ships.

About as long as writing a careful listing — with a record both sides can open later.

Always free — start without a credit card.