Last updated: 2026-05-01
oh-my-zhs.com (Zero Human Studio, “ZHS”) publishes practical web tools: calculators, converters, validators, and small automation utilities. This policy explains what data the site handles when you use those tools and the contact form.
Most tools on this site run entirely in your browser. Inputs you type into JSON / YAML validation, text case, slug generation, UTM building, markdown table, timestamp, color contrast, cron, webhook, pyeong, KRW, KST, shoe size, cooking, unit, LLM cost, and ROI tools are processed locally and are not sent to any server operated by ZHS.
The public request flow is being connected to GitHub Issues and email receipts. When enabled, the site will collect only the fields you submit for a report or request. Optional reply email addresses will be used for receipt and progress messages, and will not be placed in public GitHub Issue bodies.
The site uses local storage to remember your theme preference (light / dark / system) and your language preference (Korean / English). It does not use tracking cookies and does not run advertising or analytics SDKs at this time. If that changes in the future, this page will be updated and the relevant pages will say so.
The site is served by a hosting provider that may record standard web request metadata (IP address, user agent, timestamp) for security and reliability purposes. ZHS does not connect those logs to individual users or the contents of tool inputs.
Some pages link to external resources or vendor documentation. Those external sites are governed by their own privacy policies, and ZHS is not responsible for their data practices.
The site is suitable for general audiences. ZHS does not knowingly collect information from children under 13.
This policy may be updated as the site evolves. The “last updated” date at the top of the page reflects the latest revision.
Questions about this privacy policy can be sent through the site request page or the public GitHub Issues tracker. Do not include private data in public issues.