Terms of Service
Last updated: June 25, 2026
These Terms of Service (“Terms”) govern your access to and use of the HTML Viewer Pro website, online HTML viewer, editor, and related tools (collectively, the “Service”), operated by HTML Viewer Pro (“we,” “us,” or “our”). The Service is offered for personal, educational, and commercial production use, subject to these Terms.
Please read these Terms carefully. By accessing or using the Service, you agree to be bound by these Terms and our Privacy Policy. If you do not agree, you must not use the Service.
1. Eligibility
You must be at least 13 years old (or the minimum legal age in your jurisdiction) to use the Service. If you use the Service on behalf of a company or organization, you represent that you have authority to bind that entity to these Terms.
2. Description of the Service
HTML Viewer Pro provides a browser-based HTML viewer and editor with features that may include, without limitation:
- Syntax-highlighted HTML editing
- Live preview in a sandboxed iframe
- Format, minify, and validate HTML
- Line-by-line diff comparison against a local snapshot
- Import, export, copy, and open preview in a new tab
- Local auto-save via browser storage
- Display of third-party advertisements
HTML processing occurs locally in your browser. We do not guarantee uninterrupted availability, error-free operation, or compatibility with every browser, device, or HTML construct.
3. License to use the Service
Subject to these Terms, we grant you a limited, non-exclusive, non-transferable, revocable license to access and use the Service for lawful purposes, including commercial and production workflows (e.g., prototyping markup, reviewing snippets, formatting templates).
This license does not grant you any rights to:
- Copy, modify, or create derivative works of the Service’s software, design, branding, or underlying code except as permitted by applicable open-source licenses for bundled third-party components
- Reverse engineer, decompile, or attempt to extract source code except where prohibited by law
- Resell, sublicense, or white-label the Service as your own product without written permission
- Remove copyright, trademark, or proprietary notices
4. Your content
You retain all ownership rights in HTML, text, and other materials you create, upload, or process using the Service (“Your Content”). We do not claim ownership of Your Content.
Because processing is local, Your Content is not uploaded to our servers by the editor itself. You are solely responsible for:
- The legality, accuracy, and appropriateness of Your Content
- Backing up Your Content
- Ensuring you have all necessary rights and permissions for any material you import or generate
- Compliance with applicable laws, including intellectual property, privacy, and export control laws
5. Acceptable use
You agree not to use the Service to:
- Violate any applicable law, regulation, or third-party rights
- Create, test, distribute, or deploy malicious code (including malware, phishing pages, cryptojacking scripts, or exploits) intended to harm users or systems
- Attempt to gain unauthorized access to our systems, other users’ devices, or third-party networks
- Interfere with or disrupt the Service, including via automated scraping, denial-of-service attacks, or circumvention of security measures
- Misrepresent your affiliation with us or impersonate another person or entity
- Use the Service in high-risk environments where failure could cause death, personal injury, or severe environmental or property damage (e.g., medical life-support systems, aviation navigation, nuclear facilities) without independent professional verification
- Harvest or collect personal data of others without lawful basis and consent
- Engage in activity that violates advertising network policies (including invalid click/impression generation)
We reserve the right to investigate violations and cooperate with law enforcement where appropriate. Because the static editor does not transmit Your Content to us, our ability to monitor content is limited; enforcement may rely on reports, abuse signals, or network-level measures.
6. Commercial and production use
You may use the Service in commercial and production contexts, including for client work, internal business tools, and live editing workflows, provided you comply with these Terms.
Important limitations for commercial users:
- The Service is provided as a convenience tool, not a certified development environment, compliance system, or security scanner.
- Validation and diff features are heuristic and may produce false positives or miss issues.
- Minification and formatting may alter whitespace, attributes, or structure; review output before deployment.
- Live preview runs in a sandboxed iframe but executes scripts in Your Content within your browser; only preview trusted HTML.
- We do not offer service-level agreements (SLAs), uptime guarantees, or dedicated support unless separately agreed in writing.
- Advertising may be displayed during use; ad blockers may be used at your discretion but should not be used to artificially inflate or manipulate ad metrics.
7. Intellectual property
The Service, including its name, logo, visual design, documentation, and original code (excluding third-party open-source components), is owned by HTML Viewer Pro and protected by intellectual property laws. Our trademarks may not be used without prior written consent.
Third-party libraries are listed with full license texts on our Open Source Licenses page. Nothing in these Terms limits your rights under those open-source licenses.
8. Third-party services and links
The Service may integrate or link to third-party services, including Google AdSense, CDN providers, and support/donation platforms. We do not control and are not responsible for third-party content, policies, or practices. Your use of third-party services is at your own risk and subject to their terms.
9. Advertising
The Service may display advertisements to support free access. Ad content is provided by third parties. We do not endorse advertised products or services unless explicitly stated. Clicking ads may redirect you to external websites governed by their own terms and privacy policies.
10. Disclaimers
THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE,” WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY. TO THE FULLEST EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT, AND ACCURACY.
Without limiting the foregoing, we do not warrant that:
- The Service will be uninterrupted, secure, or error-free
- Results from formatting, minification, validation, or diff tools will be complete or suitable for production deployment
- Defects will be corrected
- The Service will meet your business requirements
You are solely responsible for reviewing, testing, and validating any output before use in production or commercial systems.
11. Limitation of liability
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL HTML VIEWER PRO, ITS OWNERS, OPERATORS, AFFILIATES, OR SUPPLIERS BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, REVENUE, DATA, GOODWILL, OR BUSINESS OPPORTUNITY, ARISING OUT OF OR RELATED TO YOUR USE OF OR INABILITY TO USE THE SERVICE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
To the extent liability cannot be excluded, our total aggregate liability for any claims arising from or related to the Service shall not exceed the greater of (a) USD $50 or (b) the amount you paid us for use of the Service in the twelve (12) months preceding the claim (which, for the free Service, may be zero).
Some jurisdictions do not allow certain limitations; in those cases, our liability is limited to the fullest extent permitted by law.
12. Indemnification
You agree to defend, indemnify, and hold harmless HTML Viewer Pro and its operators from and against any claims, damages, losses, liabilities, costs, and expenses (including reasonable attorneys’ fees) arising out of or related to: (a) Your Content; (b) your use of the Service; (c) your violation of these Terms; or (d) your violation of any law or third-party rights.
13. Privacy
Our collection and use of information is described in our Privacy Policy, which is incorporated into these Terms by reference.
14. Modifications to the Service and Terms
We may modify, suspend, or discontinue any part of the Service at any time without notice. We may update these Terms from time to time. The “Last updated” date indicates the latest version. Material changes may be posted on the Service. Continued use after changes constitutes acceptance. If you do not agree to updated Terms, you must stop using the Service.
15. Termination
We may restrict or terminate your access to the Service at any time, with or without cause or notice, to the extent permitted by law. Upon termination, provisions that by their nature should survive (including disclaimers, limitation of liability, indemnification, and governing law) will survive.
16. Governing law and disputes
These Terms are governed by the laws of the jurisdiction in which the Service operator is established, without regard to conflict-of-law principles, except where mandatory consumer protection laws in your country of residence provide otherwise.
Any dispute arising from these Terms or the Service shall be resolved in the courts of that jurisdiction, unless applicable law requires a different forum. Nothing in this section limits either party’s right to seek injunctive relief for intellectual property misuse.
Operator note: Replace the governing law placeholder above with your actual legal jurisdiction before production launch.
17. General provisions
- Entire agreement: These Terms and the Privacy Policy constitute the entire agreement regarding the Service.
- Severability: If any provision is held invalid, the remaining provisions remain in effect.
- No waiver: Failure to enforce a provision is not a waiver of future enforcement.
- Assignment: You may not assign these Terms without our consent. We may assign our rights in connection with a merger, acquisition, or asset sale.
- Force majeure: We are not liable for delays or failures due to events beyond our reasonable control.
18. Contact
For questions about these Terms, please contact us at the email address published on our main website or support page.