About HNH Lab

What is HNH Lab?

HNH Lab is a free collection of browser-based utility tools for developers, writers, students, and anyone who works with text and data. Every tool runs entirely in your browser — nothing is sent to a server, nothing is stored, and no account is required.

Our approach

We believe useful tools should be fast, simple, and free. Each tool does one thing well, loads instantly, and gets out of your way. There is no sign-up wall, no paywall, and no upsell. The tools are supported by optional advertising to keep the site running.

Privacy

We take privacy seriously. All tool processing happens in your browser using JavaScript. Text you type into the word counter, passwords generated, JSON you format, hashes you generate — none of this data is transmitted to any server. We do not collect, store, or sell your tool input data.

The site may use standard web analytics (such as page view counts) to understand which tools are most useful. This analytics data does not include your tool inputs.

Adding new tools

We are continually adding new tools to the collection. If you have a suggestion for a tool that would be useful, please get in touch via the contact page.