About ToolyLab

Who We Are

ToolyLab is built and maintained by Redline Dijital, a small digital team based in Turkey. What started as a handful of everyday calculators has grown into a collection of 109 free online tools — calculators, converters, timers, date tools, generators, image utilities and developer tools — available in five languages (English, Turkish, Spanish, German and French). Everything works right in your browser, with no sign-up and no clutter.

How Our Tools Are Built

Accuracy comes first. Our health calculators implement published scientific formulas (Mifflin-St Jeor, Devine, WHO BMI ranges); our finance tools for Turkey use the official tax parameters of the current year and are updated when the law changes; our random generators use the browser's cryptographically secure random source rather than shortcuts. Each tool page also carries a written guide with a reference table and answers to the most common questions, so you understand the result — not just receive it.

What We Offer

• Health calculators such as BMI, body fat, macros, pregnancy and sleep cycles, plus finance tools from compound interest to mortgages.
• Date and time tools: date differences, age, week numbers, world clock, timers and more.
• Text and conversion tools: word counter, fancy fonts, text compare, Roman numerals, numbers to words.
• Image utilities that run entirely in your browser — compress, resize and convert without uploading a single file — and developer tools from JSON formatting to hash generation.

Our Principles

We keep our tools clean and lightweight, respect your privacy — calculations run locally on your device and the data you enter never reaches our servers — and keep everything free, supported by unobtrusive advertising.

Get in Touch

Have an idea for a new tool or found a bug? We read every message — contact us.