License Agreement (EULA)

Last updated: November 8, 2026

In short: free for individuals and organizations with annual revenue below USD 1,000,000 and fewer than 100 employees, including commercial use. Larger organizations buy a one-time Commercial License for USD 1,000, perpetual and covering all versions.

This agreement applies to the z3l.FastHtmlParser library, its source code, binaries and NuGet packages (the "Software"), licensed by z3l (the "Licensor"). By installing or using the Software you agree to this agreement. The same text ships with the Software as LICENSE.md.

1. Definitions

"Licensee": the individual or legal entity that uses the Software, together with its Affiliates.
"Affiliate": any entity that controls, is controlled by, or is under common control with the Licensee.
"Annual Revenue": the total gross revenue of the Licensee (including all Affiliates) for the last completed fiscal year, in US dollars or equivalent.
"Headcount": the total number of employees and individual contractors working for the Licensee (including all Affiliates) on a full-time or full-time-equivalent basis, at any time during the last 12 months.
"Small Licensee": a Licensee whose Annual Revenue is below USD 1,000,000 and whose Headcount is below 100. Both conditions must be met.

2. Free License (Small Licensees)

If the Licensee is a Small Licensee, the Licensee is granted, free of charge, a worldwide, non-exclusive, non-transferable license to use, copy and modify the Software and to distribute it as part of the Licensee's own applications and services, including commercial ones.

3. Commercial License (all other Licensees)

If the Licensee's Annual Revenue is USD 1,000,000 or more, or its Headcount is 100 or more, the Licensee must purchase a Commercial License.

Price: a one-time payment of USD 1,000 per Licensee (the Licensee together with all its Affiliates). Taxes such as VAT or sales tax may be added at checkout depending on the buyer's location.
The Commercial License is perpetual and covers all current and future versions of the Software, any number of developers, applications, servers and deployments of the Licensee.
A Licensee that stops being a Small Licensee while already using the Software must purchase the Commercial License within 30 days.
The Commercial License grants the same rights as section 2, without the revenue and headcount limits, and includes priority email support.

4. Purchase and delivery

Orders are processed by our online reseller and Merchant of Record, Lemon Squeezy, which handles payment, invoicing and applicable sales taxes. Their terms of sale apply to the payment.
After payment the Licensee receives a receipt and invoice from the reseller, and a license certificate naming the Licensee from the Licensor by email.
Organizations that need a purchase order, bank transfer or vendor onboarding can contact romanti3172@gmail.com.
Refunds are covered by the refund policy. A refunded Commercial License ends on the date of the refund.

5. Conditions (both licenses)

This license text and the copyright notice must be kept in all copies or substantial portions of the Software's source code.
The Licensee may not sell, sublicense or redistribute the Software on its own, or as part of a library, SDK or component whose main purpose is HTML/XML parsing, so that it competes with the Software.
Modified versions of the Software may not be published or distributed under a different license.
End users of the Licensee's applications and services do not need their own license to use those applications and services.

6. Termination

The license terminates automatically if the Licensee breaches it and does not cure the breach within 30 days after becoming aware of it. On termination the Licensee must stop using and distributing the Software.

7. No Warranty

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

8. Limitation of Liability

IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. THE TOTAL LIABILITY OF THE COPYRIGHT HOLDERS SHALL NOT EXCEED THE AMOUNT PAID BY THE LICENSEE FOR THE SOFTWARE.

9. Contact

Questions about this agreement: romanti3172@gmail.com.