BMI calculator
Body mass index from height and weight.
Open toolFree online tools
Practical calculators and file tools, built for everyday work.
Netra Code is a free toolkit for health, money, documents, SEO, and social copy. Calculations and files stay in your browser. We do not download YouTube or Facebook videos.
328indexed tools
24hubs
PrivateRuns in your browser
Start with a high-demand tool
All toolsCompound interest
Future value with compounding.
Open toolWord counter
Words, characters, sentences.
Open toolSERP preview
Title and description lengths.
Open toolYouTube title length
Stay inside typical platform limits. Not an official API.
Open toolMerge PDF
Combine PDFs you own.
Open toolBuilt to be a real publisher, not a tool dump
Policies Google expects
About, contact, privacy, cookies, disclaimers, DMCA, and ads transparency — required for AdSense review.
About Netra CodeGuides next to the tools
Each article targets the same search phrases as a calculator and links back to the working tool.
Open the blogYoast-ready titles
Focus keyphrases and meta descriptions are stored for Yoast SEO when the plugin is active.
Editorial policy