Terms of Service

Last updated: 18 September 2026  ·  Effective: 18 September 2026

1. Who we are and what these terms cover

Omnivaleur is operated by Revaleur, a company registered in the Netherlands (KVK 86792423). These Terms of Service ("Terms") govern your access to and use of Omnivaleur — including our website at omnivaleur.com, the Omnivaleur Chrome extension, and associated backend services (collectively, the "Service").

By creating an account or using the Service, you agree to these Terms. If you do not agree, do not use the Service.

2. The Service

Omnivaleur is a cross-listing tool that helps users publish second-hand product listings on multiple European online marketplaces simultaneously, including Marktplaats, 2dehands, Vinted, Shopify and WooCommerce. The Service operates via a Chrome browser extension that interacts with marketplace websites on your behalf using your existing marketplace accounts.

Omnivaleur is an independent tool and is not affiliated with, endorsed by, or officially connected to Marktplaats, 2dehands, Vinted, Shopify, WooCommerce, or any other marketplace. Use of those platforms remains subject to their own terms of service.

3. Third-party marketplace terms and automation risk

Marktplaats, 2dehands, Vinted, eBay and other marketplaces you connect to Omnivaleur have their own terms of service governing how listings may be created, edited and removed on their platforms. Those terms are set unilaterally by each marketplace and may change at any time without notice to us. In particular, at the time of writing:

• Marktplaats (General Terms, Rules for Placing Advertisements, article 7.4): "It is not permitted to place Advertisements on the Platform via an automated system, or in any way other than via the 'Place Advertisement' button, unless Marktplaats has given permission for this (for example in the case of API partners)."
• 2dehands (General Provisions, article 7.4, in force since 5 February 2026): the equivalent Dutch-language provision, to the same effect, applies to the "Plaats Zoekertje" ("Place Advertisement") button, as 2dehands is operated by the same company as Marktplaats (Marktplaats B.V.).
• Vinted (Terms and Conditions, Section 6, "You must not"): users must not "use any kind of external software tools (including but not limited to: bots, scraping programs, crawling programs, spiders) when registering on the Site and/or when using the Site and/or Services ... unless such a use is authorised, offered or in any other way allowed by us."
• eBay (User Agreement, Section 3, "Using eBay"): users must not "use any robot, spider, scraper, data mining tools, data gathering and extraction tools, or other automated means ... except with the prior express permission of eBay." Listings created through Omnivaleur are published using eBay's official Inventory API under our own registered developer credentials, which is how that permission is obtained and exercised in practice.
• Facebook Marketplace (Meta Terms of Service, article 3.2, third bullet): users may not "collect data from our Products or otherwise access them using automated means (without our prior permission)." Integration with Facebook Marketplace, where offered, is therefore provided on a best-effort basis only and does not rely on any official automation method.

Except where stated otherwise above, no marketplace referenced in these Terms has certified, endorsed, or granted Omnivaleur status as an official automation or API partner. Where Omnivaleur interacts with a marketplace through a browser extension rather than an official API, it does so by controlling your own browser under your own, already-authenticated marketplace account, in the same way you would fill in that marketplace's own form yourself. It does not use a hidden, undocumented or unauthorised backend connection to any marketplace, and it does not access or transmit your marketplace login credentials or session cookies.

By connecting a marketplace account to Omnivaleur, you acknowledge and accept that:

• Using an automation tool such as Omnivaleur may be inconsistent with the terms of service of the marketplace(s) you connect, and that the decision to accept that risk is yours alone, not ours;
• Each marketplace decides unilaterally, at its own discretion, whether an account is warned, limited, suspended or permanently banned, and may do so without prior notice and without providing a reason;
• Revaleur does not control, influence, or have any agreement guaranteeing the outcome of a marketplace's enforcement decisions, and cannot promise that using the Service will not result in such action against your marketplace account;
• Any warning, limitation, suspension, ban, loss of listings, or loss of reviews or reputation imposed by a marketplace on your account is entirely at your own risk and is your sole responsibility, and Revaleur bears no liability for it (see also Section 10, Limitation of liability).

If you are unsure whether using Omnivaleur is compatible with a marketplace's own terms, or if this risk is not acceptable to you, we recommend that you do not connect that marketplace account, or that you first seek your own confirmation directly from that marketplace.

4. Eligibility

You must be at least 18 years old and legally capable of entering into a binding contract to use the Service. By registering, you confirm that the information you provide is accurate and that you are authorised to use the marketplace accounts you connect to Omnivaleur.

5. Account and subscription

To use Omnivaleur you must create an account using a valid email address. You are responsible for keeping your login credentials secure and for all activity under your account.

Omnivaleur is offered on a subscription basis:

• Free trial: New accounts receive a 7-day free trial with full Pro access. No credit card is required to start the trial.
• Plans: After the trial, continued access requires an active paid subscription at the then-current price. Omnivaleur Light is currently €9.99/month including VAT and covers up to 20 active items. Omnivaleur Pro is currently €19.99/month excluding VAT (VAT is added at checkout where applicable) and has no item limit.
• Billing: Subscriptions are billed monthly via Stripe. Payment methods accepted include iDEAL, Bancontact and major credit/debit cards.
• Cancellation: You may cancel your subscription at any time via the customer portal. Access continues until the end of the current billing period. No refunds are provided for partial months, except where required by applicable law.
• Price changes: We will notify you by email at least 30 days before any price increase. Continued use after the effective date constitutes acceptance.

6. Consumer right of withdrawal (EU/EEA)

If you are a consumer resident in the EU or EEA, you have the right to withdraw from this contract within 14 days of entering into it (the "cooling-off period") without giving a reason, in accordance with the EU Consumer Rights Directive (2011/83/EU).

However, by starting your free trial or paid subscription you expressly request immediate performance of the Service. If you withdraw during the cooling-off period after the Service has begun, you remain liable for a proportional amount covering the period of use.

To exercise the right of withdrawal, notify us at [email protected] before the 14-day period expires.

7. Acceptable use

You agree to use Omnivaleur only for lawful purposes and in accordance with these Terms. You must not:

• List items that are illegal, counterfeit, stolen, or that infringe intellectual property rights.
• Use the Service to send spam or unsolicited communications.
• Attempt to reverse engineer, scrape, or extract data from Omnivaleur itself.
• Use the Service in a way that could damage, overload or impair the marketplaces you connect to, or that violates their terms of service.
• Create multiple accounts to abuse the free trial.
• Use the Service for commercial reselling of access to third parties without our written permission.

We reserve the right to suspend or terminate accounts that violate these rules, without prior notice and without refund.

8. Your content

You retain ownership of all product data, photos and descriptions you upload to Omnivaleur ("Your Content"). By using the Service, you grant Revaleur a limited, non-exclusive licence to store, process and transmit Your Content solely as necessary to provide the Service (e.g., to send your listing to a marketplace on your behalf).

You are solely responsible for ensuring Your Content complies with applicable laws and the rules of each marketplace you publish to.

9. Availability and changes

We aim for high availability but do not guarantee uninterrupted access to the Service. Marketplace websites may change their structure at any time, which can temporarily affect Omnivaleur's ability to list on those platforms. We will endeavour to restore compatibility as quickly as possible but cannot guarantee uptime for third-party integrations.

We reserve the right to modify, suspend or discontinue any part of the Service at any time. We will provide reasonable notice for material changes.

10. Limitation of liability

To the maximum extent permitted by applicable law, Revaleur shall not be liable for:

• Indirect, incidental, special or consequential damages arising from your use of (or inability to use) the Service.
• Loss of profits, revenue or data.
• Actions taken by third-party marketplace platforms, including any warning, limitation, suspension or ban of your marketplace account (see Section 3, Third-party marketplace terms and automation risk).
• Errors in AI-generated listing descriptions.

Our total aggregate liability to you for any claim arising out of or related to these Terms or the Service is limited to the amount you paid us in the 3 months preceding the claim.

Nothing in these Terms excludes or limits liability for death or personal injury caused by negligence, fraud, or any other liability that cannot be excluded under Dutch law.

11. Indemnification

You agree to indemnify and hold harmless Revaleur, its directors and employees from any claims, damages or expenses (including legal fees) arising from your use of the Service, Your Content, or your violation of these Terms or any third-party rights.

12. Intellectual property

All rights in the Omnivaleur software, branding, design and documentation are owned by or licensed to Revaleur. Nothing in these Terms transfers any intellectual property rights to you. You may not copy, modify, distribute or create derivative works of any part of the Service without our written consent.

13. Governing law and disputes

These Terms are governed by Dutch law. Any disputes arising from or related to these Terms shall be subject to the exclusive jurisdiction of the competent court in the Netherlands, without prejudice to your rights as a consumer under mandatory provisions of the law of your country of residence.

Before initiating legal proceedings, we encourage you to contact us at [email protected] to resolve disputes amicably. EU consumers also have access to the EU Online Dispute Resolution platform at ec.europa.eu/consumers/odr.

14. Changes to these Terms

We may update these Terms from time to time. We will notify you by email at least 14 days before material changes take effect. Your continued use of the Service after the effective date constitutes acceptance of the revised Terms. If you do not accept the changes, you must stop using the Service and cancel your subscription.

15. Contact