Last updated July 14, 2026
These Terms of Service govern your access to and use of Toolumen. Please read them carefully — they include an acceptable use policy, important disclaimers, a complete limitation of liability, and a binding arbitration agreement and class-action waiver that affect your legal rights.
These Terms of Service (the "Terms") form a binding legal agreement between you and Stacklumen ("Stacklumen," "Toolumen," "we," "us," or "our") governing your access to and use of Toolumen, the websites at toolumen.com and its subdomains, and any tools, features, content, APIs, and services we make available (collectively, the "Service"). Toolumen is a product of Stacklumen. By creating an account, clicking to accept, or otherwise accessing or using the Service, you acknowledge that you have read, understood, and agree to be bound by these Terms and by our Privacy Policy, which is incorporated here by reference. If you do not agree, you must not access or use the Service.
If you use the Service on behalf of a company, agency, or other organization, you represent and warrant that you have the authority to bind that entity to these Terms, and "you" and "your" refer to both you and that entity.
Toolumen provides a collection of small, focused web tools for developers and other professionals — including SEO and AEO auditing, page-speed and Core Web Vitals testing, accessibility auditing, Open Graph preview, security-header checks, structured-data (JSON-LD) generation and validation, contrast checking, and embed sizing, among others. Many tools run entirely in your browser, meaning the data you provide is processed locally on your device and is not transmitted to our servers. Certain tools — for example, the server-side audits — send the URL or input you provide to our backend and to third-party services (such as Google PageSpeed Insights) in order to function.
The Service is provided for informational and productivity purposes only. Tool outputs, scores, grades, reports, and recommendations are automated estimates that may be incomplete, inaccurate, or out of date; they do not constitute professional, legal, security, accessibility-compliance, or financial advice, and you are solely responsible for independently verifying any output before relying on it. We may add, change, suspend, or remove tools, features, limits, and outputs at any time, with or without notice, and we do not guarantee that any particular tool, feature, or result will be available, uninterrupted, error-free, or fit for any particular purpose.
You must be at least the age of majority in your jurisdiction (and at least 18 years old) to use the Service. Authentication is handled through our provider, Clerk. To access certain tools and paid plans you must create an account and provide accurate, current, and complete information, which you agree to keep up to date. You are responsible for safeguarding your credentials and for all activity that occurs under your account, whether or not authorized by you. You agree to notify us promptly at our contact page or apps@stacklumen.com if you suspect any unauthorized access to or use of your account. You may not share your account, sell or transfer it, or permit others to use it, except as expressly permitted for team or agency plans we may offer.
Toolumen offers paid subscription plans. Our current plans are Starter at $4.99 per month, which includes a capped number of metered tool runs per calendar month, and Premium at $19.99 per month, which includes unlimited runs across every tool. Plan names, prices, features, and usage limits are described on our pricing page and may change from time to time; the prices and features in effect at the start of your then-current billing period apply to that period.
Billing and payment processing are handled by Stripe. Paid plans are billed monthly in advance, and by subscribing you authorize us, through Stripe, to charge your designated payment method on a recurring basis until you cancel. You are responsible for all applicable taxes. You may cancel at any time through the Stripe billing portal; upon cancellation your subscription remains active and you retain access to paid features through the end of the then-current billing period. Except where required by law or as stated in our Refunds Policy, payments are non-refundable and we do not provide credits or refunds for partial billing periods, unused runs, or downgrades. Usage counters for metered plans reset at the start of each calendar month and do not roll over.
You may use the Service only for lawful purposes and in accordance with these Terms and our Acceptable Use Policy, which is incorporated here by reference. You are solely responsible for your use of the Service and for ensuring that any URL, domain, content, or input you submit is one you own or are authorized to test, analyze, or process. You agree that you will not, and will not attempt to, and will not enable or permit any third party to:
We may investigate suspected violations and may suspend or terminate access without notice for conduct we determine, in our sole discretion, violates these Terms or is otherwise harmful to us, our users, or third parties. See also Section 12 (Termination).
As between you and us, you retain all rights in the URLs, files, text, and other inputs you provide (your "Inputs"). For browser-only tools, your Inputs are processed locally on your device and are not sent to us. For server-side tools, you grant us and our processors a limited, non-exclusive, worldwide license to host, transmit, process, and analyze your Inputs solely to operate and provide the Service, to generate outputs and reports, to maintain security and prevent abuse, and to improve the Service in aggregated or de-identified form. You represent and warrant that you have all rights necessary to submit your Inputs and that doing so does not violate any law or third-party right. Our collection and use of personal information is described in the Privacy Policy.
The Service, including its software, design, text, graphics, logos, report templates, and all related intellectual property, is owned by Stacklumen or its licensors and is protected by intellectual property and other laws. Subject to your compliance with these Terms, we grant you a limited, revocable, non-exclusive, non-transferable, non-sublicensable license to access and use the Service and to use the outputs and reports you generate for your own internal or client-facing business purposes. All rights not expressly granted are reserved. "Toolumen," "Stacklumen," and associated logos are our marks and may not be used without our prior written permission. If you provide feedback or suggestions, you grant us a perpetual, irrevocable, royalty-free license to use them without restriction or obligation to you.
The Service relies on and integrates with third-party services, including Clerk (authentication), Stripe (payments), Google PageSpeed Insights and related APIs (performance and accessibility data), and Webflow Cloud and Cloudflare (hosting and delivery). Your use of those services may be subject to their own terms and privacy policies, and we are not responsible for their acts, omissions, availability, accuracy, or content. Links and outputs that reference third-party websites are provided for convenience and do not imply endorsement.
Marketing disclaimer. When you submit any form anywhere on Toolumen — including sign-up, contact, support, tool-request, and lead forms — you acknowledge and agree that we collect the information you provide and may use it to operate, market, and promote the Service, including to send you transactional messages (such as account, billing, and security notices) and, where permitted, marketing and promotional communications about Toolumen and other Stacklumen products.
Transactional messages are a necessary part of the Service and may not be opted out of while your account is active. You may opt out of marketing communications at any time by using the unsubscribe link in those messages or by contacting us; opting out does not affect transactional messages. We may also use aggregated, anonymized, or de-identified usage data for analytics, benchmarking, and product improvement. We do not sell your personal information. The categories of information we collect, the purposes for which we use it, the third parties with whom we share it, and your rights and choices are described in full in our Privacy Policy and Cookie Policy, which govern in the event of any conflict with this summary.
THE SERVICE, INCLUDING ALL TOOLS, OUTPUTS, SCORES, REPORTS, AND CONTENT, IS PROVIDED "AS IS" AND "AS AVAILABLE," WITH ALL FAULTS AND WITHOUT WARRANTY OF ANY KIND. TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE AND OUR AFFILIATES, LICENSORS, AND SUPPLIERS EXPRESSLY DISCLAIM ALL WARRANTIES, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, QUIET ENJOYMENT, AND NON-INFRINGEMENT, AND ANY WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE.
WE DO NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, SECURE, ERROR-FREE, OR FREE OF HARMFUL COMPONENTS, THAT DEFECTS WILL BE CORRECTED, OR THAT ANY OUTPUT, SCORE, GRADE, RECOMMENDATION, OR REPORT WILL BE ACCURATE, COMPLETE, RELIABLE, CURRENT, OR SUITABLE FOR YOUR PURPOSES. YOU ASSUME FULL RESPONSIBILITY AND RISK FOR YOUR USE OF THE SERVICE AND ANY RELIANCE ON ITS OUTPUTS. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF CERTAIN WARRANTIES, SO SOME OF THE ABOVE EXCLUSIONS MAY NOT APPLY TO YOU.
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT WILL STACKLUMEN OR ITS AFFILIATES, OFFICERS, DIRECTORS, EMPLOYEES, AGENTS, LICENSORS, OR SUPPLIERS (THE "COVERED PARTIES") BE LIABLE TO YOU FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS, REVENUE, DATA, GOODWILL, BUSINESS OPPORTUNITY, OR ANTICIPATED SAVINGS, OR FOR THE COST OF SUBSTITUTE SERVICES, ARISING OUT OF OR RELATING TO THESE TERMS OR THE SERVICE, WHETHER BASED ON WARRANTY, CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY, STATUTE, OR ANY OTHER LEGAL THEORY, AND WHETHER OR NOT ANY COVERED PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, AND EVEN IF A REMEDY FAILS OF ITS ESSENTIAL PURPOSE.
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE COVERED PARTIES' TOTAL AGGREGATE LIABILITY FOR ALL CLAIMS ARISING OUT OF OR RELATING TO THESE TERMS OR THE SERVICE WILL NOT EXCEED THE GREATER OF (A) THE TOTAL AMOUNTS YOU ACTUALLY PAID TO US FOR THE SERVICE IN THE TWELVE (12) MONTHS IMMEDIATELY PRECEDING THE EVENT GIVING RISE TO THE CLAIM, OR (B) ONE HUNDRED U.S. DOLLARS (US $100). THESE LIMITATIONS ARE CUMULATIVE AND NOT PER INCIDENT; MULTIPLE CLAIMS DO NOT ENLARGE THE CAP.
THE FOREGOING DISCLAIMERS AND LIMITATIONS ARE A FUNDAMENTAL BASIS OF THE BARGAIN BETWEEN YOU AND US AND ALLOCATE THE RISKS BETWEEN THE PARTIES; THE SERVICE WOULD NOT BE PROVIDED WITHOUT THEM. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF CERTAIN DAMAGES, SO SOME OF THE ABOVE MAY NOT APPLY TO YOU; IN SUCH CASES THE COVERED PARTIES' LIABILITY WILL BE LIMITED TO THE MAXIMUM EXTENT PERMITTED BY LAW. NOTHING IN THESE TERMS LIMITS LIABILITY THAT CANNOT BE LIMITED BY LAW.
You agree to defend, indemnify, and hold harmless the Covered Parties from and against any and all claims, damages, liabilities, losses, costs, and expenses (including reasonable attorneys' fees) arising out of or relating to: (a) your use or misuse of the Service; (b) your Inputs; (c) your violation of these Terms or any applicable law; or (d) your violation of any third-party right, including your submission or testing of any website, system, or content you did not own or were not authorized to assess. We reserve the right to assume the exclusive defense and control of any matter subject to indemnification, in which case you agree to cooperate with us.
You may stop using the Service and cancel your subscription at any time. We may suspend or terminate your access to the Service, in whole or in part, at any time and for any reason, including if we reasonably believe you have violated these Terms or the Acceptable Use Policy, with or without notice and without liability to you. Upon termination, your right to use the Service ceases immediately. Sections that by their nature should survive termination — including ownership, disclaimers, limitation of liability, indemnification, and the dispute-resolution provisions — will survive.
We may modify the Service or these Terms at any time. If we make material changes to these Terms, we will update the "Last updated" date above and may provide additional notice as required by law. Changes are effective when posted unless stated otherwise. Your continued access to or use of the Service after changes take effect constitutes your acceptance of the revised Terms. If you do not agree to the changes, you must stop using the Service.
These Terms and any dispute arising out of or relating to them or the Service are governed by and construed in accordance with the laws of the Commonwealth of Kentucky, USA, without regard to its conflict-of-laws principles, and, where applicable, by the U.S. Federal Arbitration Act. Subject to the arbitration provision below, you and we submit to the exclusive jurisdiction of the state and federal courts located in the Commonwealth of Kentucky for any matter not subject to arbitration, and you consent to personal jurisdiction there.
Binding arbitration and class-action waiver. To the fullest extent permitted by law, you and we agree that any dispute, claim, or controversy arising out of or relating to these Terms or the Service will be resolved by final and binding individual arbitration, rather than in court, except that either party may bring an individual claim in small-claims court or seek injunctive relief for intellectual-property or unauthorized-use matters. YOU AND WE AGREE THAT EACH MAY BRING CLAIMS AGAINST THE OTHER ONLY IN AN INDIVIDUAL CAPACITY AND NOT AS A PLAINTIFF OR CLASS MEMBER IN ANY PURPORTED CLASS, COLLECTIVE, OR REPRESENTATIVE PROCEEDING. You may opt out of this arbitration agreement by notifying us in writing within 30 days of first accepting these Terms. Some jurisdictions do not permit these provisions, in which case they apply only to the extent allowed by law.
These Terms, together with the Privacy Policy and any other policies referenced here, are the entire agreement between you and us regarding the Service and supersede all prior agreements. If any provision is held unenforceable, it will be limited or severed to the minimum extent necessary and the remaining provisions will remain in full force. Our failure to enforce any provision is not a waiver. You may not assign these Terms without our prior written consent; we may assign them freely, including in connection with a merger, acquisition, or sale of assets. We are not liable for any delay or failure to perform due to causes beyond our reasonable control. Nothing in these Terms creates any agency, partnership, joint venture, or employment relationship. Notices to you may be provided through the Service or by email; you consent to receive communications from us electronically.
Questions about these Terms? Reach us through our contact page or at apps@stacklumen.com. Toolumen is a product of Stacklumen.
This document is a general template provided for convenience and is not legal advice. Have it reviewed by qualified counsel before relying on it. Questions? Contact us.