Effective date: 12 August 2026
The full legal terms below govern our relationship. This summary is just to help you understand the key points.
Filamental is a desktop application that you download and run locally on your computer (the "Software"). It renders a folder of Markdown files as a navigable structure, and includes tools for publishing that structure as a document. The Software is provided on an annual subscription (the Professional plan) or, if you use the Personal plan, under a limited perpetual license.
The Software is local-first by default. Your files are ordinary Markdown files on your own disk. Nothing leaves your machine unless you deliberately choose to share it. Specifically, we do not:
You are solely responsible for backing up your files.
We may use third-party service providers for customer support or email delivery, who may process limited contact data under contractual confidentiality obligations. This does not include your files or app usage data.
The Professional plan includes Publisher Studio, which can turn a structure into either a downloadable HTML file or a hosted link. Publishing is always an explicit act. It is never automatic, and it is never required in order to use the Software.
Where you choose to create a hosted link, the following apply:
Subject to your compliance with these Terms and the continued payment of your subscription fees, we grant you a non-exclusive, non-transferable, non-sublicensable license to install and use one copy of the Software on a single computer for the duration of your active subscription period. This license is solely for your personal or internal business use.
Your rights to the Professional features are limited to your active subscription period. If your subscription expires or is cancelled, those features are withdrawn and your licence reverts to the Personal plan in Section 2.2, which is perpetual. This is distinct from termination for breach under Section 12.2, where your licence ceases entirely.
The Personal plan is free and permanent. It does not expire, and it is not a trial. Your licence under it is perpetual, and covers:
Publisher Studio, and therefore HTML export and hosted share links, are not included in the Personal plan. The current feature split is described on our pricing page, and we may change what the Personal plan includes with reasonable notice. Personal plan users are not entitled to support unless we choose to provide it.
Every first installation runs on the full Professional plan for 15 days, with Publisher Studio and sharing included. At the end of that period the installation moves to the Personal plan. The Software does not stop working and no payment is required at any point.
At that point we ask for a first name and an email address, in exchange for one or two emails a year. The request is skippable, it recurs, and it creates no account.
A hosted link created during the 15-day period continues to work for its full 180 days. You lose the ability to push a new snapshot to it, but you keep the ability to revoke it.
The Professional plan costs $120 per year. It is sold annually and there is no monthly option.
Your subscription begins on the date of purchase and continues for one year (the "Subscription Term"). Unless you cancel before the renewal date, it will automatically renew for a further year at the then-current subscription fee.
All payments are processed by Creem, a third-party payment processor. When you purchase a subscription:
We do not receive or store your full payment card details on our servers.
Payments are received by BlackCat Marketing LLC, 30 N Gould St Ste N, Sheridan, WY 82801, USA.
You may cancel at any time through your Creem customer portal or by contacting us. Cancellation takes effect at the end of your current Subscription Term, and you keep access until then.
Within 30 days of purchase you may request a full refund, no questions asked, by emailing support@filamental.space with your order details. Refunds are processed through our payment provider and typically appear within 5 to 10 business days depending on your bank.
After 30 days, we do not refund or credit the unused portion of a Subscription Term, except where required by law. This does not affect Section 12.5, under which we refund pro rata if we discontinue the Software.
Cancelling does not touch your files. They are Markdown on your own disk and they remain yours.
We may change subscription fees for future renewal periods. We will notify you at least 30 days in advance via the email address associated with your Creem account. Your continued use after the change constitutes acceptance of the new price. If you do not wish to pay the increased price, you may cancel your subscription before the change takes effect.
If your payment method fails and you do not update it within 14 days of notice, we may withdraw your Professional plan features. If payment is not updated within 30 days of that, we may terminate your subscription without further notice.
In either case the Software continues to work on the Personal plan described in Section 2.2. We do not disable it, and your files remain accessible to you throughout.
Should we offer a lifetime licence option, the specific terms applicable at the time of purchase will govern. A lifetime licence grants you access to the Software version available at the time of purchase, plus any updates we choose to provide for that version, for as long as the Software remains commercially available. Lifetime licences do not include future major version releases unless expressly stated at purchase. We reserve the right to discontinue the Software entirely by providing at least 90 days' notice on our website. If we discontinue the Software, no refund or credit will be provided. Lifetime licences are non-refundable and non-transferable.
From time to time, we may offer subscriptions at a promotional or discounted rate at our sole discretion. The following terms apply to any promotional subscription:
To ensure compliance with these Terms, the Software will periodically connect to license validation servers to confirm your subscription status. This connection transmits only your license key, a unique installation identifier, and the current timestamp. No design files or personal content are transmitted.
If validation fails — for example because your subscription has expired or been cancelled — the Professional features are withdrawn and the Software continues on the Personal plan described in Section 2.2. It does not stop working, and it does not lock you out of your own files.
We may from time to time provide updates, bug fixes, or new versions of the Software. For active subscription holders, these updates will be provided free of charge as part of your subscription. Free tier users may receive updates at our discretion. We reserve the right to determine the method and timing of update delivery.
You are solely responsible for:
You must not use the Software to create, store, or distribute any material that is illegal, defamatory, infringing, or otherwise unlawful under all applicable local laws.
The Software (including its code, design, icons, and underlying technology) is owned by us or our licensors. These Terms do not give you any ownership rights in the Software.
You retain all ownership rights in the files and structures you create using the Software, including anything you publish from them. We claim no intellectual property rights over your work.
If you provide us with any suggestions, ideas, feature requests, feedback, bug reports, code, extensions, or other contributions ("Feedback"), you grant us a perpetual, irrevocable, royalty-free, worldwide, sublicensable license to use, reproduce, modify, adapt, publish, and incorporate that Feedback into the Software or any other products, without any obligation to compensate you. You waive any moral rights in the Feedback to the extent permitted by law. No gift card, acknowledgment, or other compensation is due unless we expressly offer it in writing at our sole discretion.
You will not, nor permit any third party to:
To the maximum extent permitted by applicable law, the Software is provided "as is" and "as available", without any warranties of any kind, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement.
User status. These Terms apply to all users. However, if you use the Software in connection with any trade, business, profession, or commercial activity — whether as a sole trader, through a company, or otherwise — you are a "Business User". Business Users acknowledge that the Software is a professional tool provided for general use and is not tailored to any specific business process, regulatory requirement, or industry standard. All users, including consumers, benefit from the liability limitations in Section 10. The additional warranty disclaimers in this Section 9 apply to all users but are expressly reinforced for Business Users.
To the maximum extent permitted by law, all implied warranties, conditions, or terms (whether implied by statute, common law, or otherwise) including any implied warranty of merchantability, satisfactory quality, fitness for a particular purpose, or conformity to description are expressly excluded. The Software is provided for general use only and is not tailored to any specific business process or regulatory requirement. You assume full responsibility for selecting the Software, for its installation and use, and for verifying that the results obtained meet your requirements.
We do not warrant that the Software will be error-free, secure, or uninterrupted, or that all defects will be corrected. Because you run the Software locally, we cannot be responsible for any damage to your computer system, data loss, or other harm resulting from your use of the Software.
Nothing in these Terms excludes or limits our liability for death or personal injury caused by our negligence, for fraud, or for any other liability that cannot be excluded or limited under UK law.
To the fullest extent permitted by law:
We will not be liable for any indirect, incidental, special, or consequential damages (including loss of profits, data, business, or goodwill) arising from your use or inability to use the Software, even if we have been advised of the possibility of such damages.
Our total aggregate liability to you for all claims arising out of or relating to these Terms or the Software (whether in contract, tort, negligence, or otherwise) is limited to the greater of (i) the total fees paid by you to us during the 12-month period preceding the claim, or (ii) $20.
Any claim against us must be brought within 12 months of the date on which the cause of action first arose. Any claim brought after that period is barred.
The limitations in this Section 10 do not apply to liabilities arising out of your indemnification obligations (Section 11), your breach of Section 8 (Restrictions on Use), or any liability that cannot be excluded or limited by law.
These limitations apply even if any exclusive remedy fails of its essential purpose and to the fullest extent permissible under Wyoming law.
To the fullest extent permitted by law, you agree that any proceedings will be conducted only on an individual basis and not in a class, consolidated, or representative action. To the extent permitted by law, you irrevocably waive any right to a jury trial in any dispute arising from these Terms or the Software.
You agree to defend, indemnify, and hold harmless us and our affiliates, officers, directors, employees, and agents from and against any and all claims, damages, losses, liabilities, costs, and expenses (including reasonable legal fees) arising out of or relating to:
This indemnity does not apply to the extent a claim arises solely from our gross negligence or wilful misconduct.
You may terminate these Terms at any time by cancelling your subscription via Creem and uninstalling all copies of the Software.
We may terminate these Terms immediately if you breach any material term (for example, by reverse engineering the Software or sharing your license key). Upon termination for your breach: your license rights cease immediately; you must uninstall and delete all copies of the Software; and no refund will be provided.
Where we terminate for your breach under Section 12.2, you must cease using the Software and delete all copies of it.
Where your subscription simply ends — you cancelled it, or it lapsed — you keep the Personal plan licence in Section 2.2 and the Software continues to work under it. You lose the Professional features and any associated services.
In either case your files are yours, they stay on your own disk in an open format, and you are responsible for backing them up. We will not be liable for any loss of data following termination.
Sections titled "No warranty" (9), "Limitation of liability" (10), "Indemnity by you" (11), "Feedback and contributions" (7.3), and "Miscellaneous" (15) will survive any expiration or termination of these Terms.
We may terminate all subscriptions and cease providing the Software at any time by providing at least 60 days' notice on our website and (if we hold your email address) by email. Upon such termination, we will refund a pro-rata portion of any pre-paid subscription fees for the unused portion of your current Subscription Term. This Section 12.5 does not apply to termination for your breach under Section 12.2. You remain responsible for exporting and backing up your files before the termination date.
These Terms (together with our Privacy Policy) constitute the entire agreement between you and us regarding the Software. They supersede all prior agreements, understandings, or representations. Any terms, conditions, or provisions contained in any purchase order, invoice, or other business document issued by you shall have no force or effect, even if we purport to accept or act on such document. We expressly reject any additional or different terms.
Payment processing is provided by Creem, a third-party service. We are not responsible for any errors, delays, security breaches, or data handling by Creem. Your interaction with Creem is governed by their own terms and privacy policy.
Changes to these Terms. We may update these Terms from time to time. The latest version will always be available on our website. If we make material changes that adversely affect your rights, we will notify you by email (if we have your address) or by posting a notice on our website. Your continued use of the Software after the effective date of changes constitutes acceptance of the revised Terms.
Governing law. These Terms are governed by and construed in accordance with the laws of Wyoming. Any dispute shall first be attempted to be resolved through good-faith negotiation. If the dispute cannot be resolved within 30 days, either party may bring proceedings in the courts of Wyoming. You and we agree to the exclusive jurisdiction of those courts. If you are a consumer, you may also have the right to bring proceedings in your local court under consumer protection laws.
Severability. If any provision of these Terms is held to be invalid or unenforceable, the remaining provisions will continue in full force and effect.
Waiver. Our failure to enforce any right or provision does not waive that right.
Assignment. You may not assign these Terms or your license without our written consent. We may assign these Terms to an affiliate or a successor in connection with a merger or acquisition.
No third-party beneficiaries. These Terms do not confer any rights on any third party.
If you have any questions about these Terms or need support, please contact us at support@filamental.space.
Filamental is distributed by BlackCat Marketing LLC, Sheridan, WY 82801. Company Reg. 2026-001903427.