TL3 Tools is the free, browser-based utility collection published by TL3 Communications, a web development and communications company based in Crestline, California. We build calculators, converters, and text processors for people who need a quick answer without installing an app or creating an account.
The same person conceives, builds, documents, and reviews every tool on this site. The company operates out of Crestline, California 92325, and the person below is the one doing the work.
Todd L. is the founder of TL3 Communications, a strategic technical architect with more than 25 years of web development experience — including 20 years specialized in the WordPress ecosystem — grounded in ISP-level infrastructure: DNS, Linux, and Apache, alongside deep mastery of PHP and modern JavaScript. He has architected enterprise-grade WordPress Multisite platforms with custom page builders and automated media pipelines, built high-traffic entertainment sites including a WordPress-based charity platform for Disney’s Star Wars, and run TL3 Communications since 1996.
Today he runs the calculator collection — researching each formula, working through examples with real numbers, and writing the guides that walk readers through everyday math — builds and documents the developer utilities and the encoding, parsing, and hashing algorithms behind them, and covers web security on the blog, including the password security guide, the Base64 primer, and the regex tutorial for beginners. He is also the editor: every page ships only after he has checked the math and the claims and read the copy back against what the tool actually does.
Each tool starts with a short spec that names the exact formula or algorithm it will run. That math is checked against published references and hand-computed examples, implemented in plain JavaScript, and the finished page is read back against the spec before it ships.
Before a tool goes live, it is verified against known inputs. The percentage calculator is checked with a value like 23% of 480, date and time tools are checked against spans worked out by hand, and every encoder is tested with strings whose output is known in advance. The pages are also run in Chrome, Safari, and Firefox and watched for how they behave with very long input or with JavaScript switched off.
Building client-side is a constraint I choose, not a shortcut. Because every calculation runs in your browser, there is no server job to scale, no account system to maintain, and no reason to ask for your email address. Results are produced on your device and gone when you close the tab.
All processing happens client-side using JavaScript. The text, numbers, files, or colors you enter are handled locally by the page itself and are never uploaded to TL3 Communications or to any third party.
This page does load Google tags for analytics and advertising, which is why a consent banner appears on your first visit. That consent choice is stored in your browser, and your tool inputs stay separate from the analytics data. The privacy policy describes what Google receives in plain terms.
Bug reports, questions, and tool requests are welcome. The fastest path is the contact page, which forwards your message through a form, or you can email support@tl3.com directly.