Last updated: June 27, 2026
Welcome to UTLZ.FYI. By using this website, you agree to these Terms of Use.
1. Free Use
UTLZ.FYI provides free browser-based tools, learning resources, visualizers, and technical content. The website is intended for educational, development, productivity, and general utility purposes.
We currently provide these tools and lessons for free. You do not need to create an account, pay a subscription, or sign up to read our content or use our public tools. We may update, change, remove, or add features at any time.
We may display advertising, including Google AdSense ads, to help support hosting, maintenance, and continued publication of free content.
2. No Warranty
The tools and content on UTLZ.FYI are provided "as is" and "as available."
We try to keep the tools accurate, useful, and reliable, but we do not guarantee that every result, conversion, calculation, visualization, code example, or explanation will always be correct, complete, or suitable for your specific use case.
You are responsible for checking important outputs before using them in production, legal, financial, academic, or professional work.
3. Browser-Based Processing
Many tools on UTLZ.FYI are designed to run directly in your browser. Where stated, your input files or data are processed locally on your device and are not intentionally uploaded to our servers.
However, you should avoid entering highly sensitive, confidential, or private information into any online tool unless you fully understand how it works.
4. Acceptable Use
You agree not to use UTLZ.FYI for illegal, abusive, harmful, or malicious activities.
You must not misuse this website. This includes:
- Attempting to attack, disrupt, overload, scrape aggressively, reverse engineer, or damage the website, its tools, or related infrastructure.
- Using the site to distribute malware, spam, or harmful content.
- Copying large portions of original content and republishing it as your own.
- Removing attribution from copied excerpts, examples, or references.
- Using automated access in a way that interferes with normal visitors.
5. Educational Content
DSA lessons, coding explanations, visualizers, and technical articles are provided for learning purposes. They may not cover every edge case or every implementation style.
You are encouraged to test code examples and adapt them carefully before using them in real projects.
6. External Links and Subdomains
UTLZ.FYI may link to related tools, subdomains, third-party websites, or external resources. These links are provided for convenience.
Some lessons link to external resources such as LeetCode, NeetCode, Google services, documentation pages, or related tools on UTLZ.FYI subdomains. We are not responsible for the content, availability, privacy practices, terms, or behavior of external websites or third-party services.
7. Content Ownership and Reuse
The original explanations, lesson structure, visualizer designs, and written content on UTLZ.FYI belong to UTLZ.FYI unless otherwise stated.
You may link to our pages, quote short excerpts with attribution, and use code snippets for personal learning. Please do not copy full articles or recreate the site content as a competing publication.
8. Advertising and Sponsored Content
UTLZ.FYI may show advertisements through third-party advertising partners, including Google AdSense. Ads help keep the educational content free. Advertising does not change our commitment to publishing useful original content.
When ads or sponsored material appear, they should be distinguishable from the main educational content.
9. Limitation of Liability
To the maximum extent permitted by law, UTLZ.FYI and its maintainers are not responsible for any loss, damage, data issue, incorrect result, business interruption, or other problem caused by using or relying on the website, tools, or content.
10. Changes to These Terms
We may update these Terms of Use from time to time. If we make changes, we will update the "Last updated" date above. Continued use of the website after changes means you accept the updated terms.
11. Contact
For questions, feedback, bug reports, content usage requests, corrections, or concerns, contact us through the Contact page on UTLZ.FYI.