A complete suite of privacy-first utilities for developers and pros.
Test your download bandwidth with multi-threaded connections.
Instantly detect your IPv4 address, ISP, and geolocation.
Verify if your browser is leaking your real IP through WebRTC.
Estimate how long file transfers take at different speeds.
Calculate CIDR ranges, netmasks, and usable host IPs.
Identify the manufacturer of a network device from its MAC.
Validate, beautify, and minify JSON data structures.
Encode and decode text or images to Base64 strings.
Write Markdown and see live HTML preview instantly.
Build and debug crontab schedules visually.
Generate random version 4 UUIDs in bulk.
Create privacy-first, static QR codes.
Create secure, random passwords locally in your browser.
Count words, characters, and sentences real-time.
Switch between Uppercase, lowercase, Title Case, etc.
Convert text to bionic reading format for speed reading.
Convert Bits, Bytes, KB, MB, GB, TB, and PB.
Celsius, Fahrenheit, and Kelvin conversions.
Convert cups to grams for baking ingredients.
Calculate increase, decrease, and percentage of.
Estimate mortgage and loan payments with amortization.
Convert salary to hourly, weekly, and monthly pay.
Calculate gratuity and split bills easily.
Convert fractions to decimals and back.
Check Body Mass Index and health categories.
Compare times across different global zones.
Unlike most online tools, N28 is built on a serverless architecture. This means your data—whether it's a password, a JSON file, or a salary figure—never leaves your browser. All processing happens locally on your device.
We hate waiting for tools to load. N28 is optimized for extreme performance, scoring 100/100 on Google PageSpeed Insights. No heavy frameworks, no tracking cookies, just pure utility.
Yes, all tools on N28.net are completely free to use without registration.
No, all N28 tools run directly in your web browser. No download is required.
Yes. N28 uses client-side processing for tools like Password Generator and JSON Formatter, meaning your data never leaves your device.
Yes, once the page is loaded, most tools (calculators, converters) work without an internet connection.
Yes, all tools are designed to be fully responsive and work on iOS and Android devices.
The speed test uses multi-threaded downloads from global CDNs to saturate your connection, providing highly accurate results for high-speed internet.
Mbps (Megabits) measures speed, while MB/s (Megabytes) measures file transfer rate. 8 Mbps = 1 MB/s.
Currently, we offer a JSON Formatter. XML conversion tools are planned for future updates.
A WebRTC leak exposes your real IP address through browser features, even if you are using a VPN.
Use our BMI Calculator. The formula is weight (kg) / height (m)^2.
Yes, it uses the browser's cryptographic API (window.crypto) to ensure true randomness.
Use the Loan Calculator to input principal, rate, and term. It uses standard amortization formulas.
Base64 is an encoding scheme that converts binary data into ASCII text strings.
Divide the numerator by the denominator. Or use our Fraction Converter tool.
A subnet mask divides an IP address into network and host addresses. Use our Subnet Calculator to find it.
Paste raw JSON into our JSON Formatter to automatically indent and validate it.
Use the Character Counter tool. It counts characters, words, sentences, and paragraphs in real-time.
A cron job is a scheduled task on Unix-like systems. Our Cron Generator helps you create the syntax.
Divide annual salary by 2080 (standard work hours). Use our Salary Calculator for precise figures.
A Universally Unique Identifier (UUID) is a 128-bit number used to identify information in computer systems.
Multiply by 1.8 and add 32. Use the Temperature Converter for instant results.
Markdown is a lightweight markup language for formatting text. Use our Editor to preview it as HTML.
((New - Old) / Old) * 100. Our Percentage Calculator handles this automatically.
Enter the first 6 characters of the MAC address into our MAC Lookup tool.
It is a reading method that bolds the start of words to guide the eye. Use our Bionic Reading tool to convert text.
Weight varies by ingredient. Use our Cooking Converter which has a density database for flour, sugar, etc.
Use the Time Zone Converter to see current times across multiple global cities simultaneously.
Use the Tip Calculator to calculate tip and split the total evenly among a group.
Data represented by 0s and 1s. Use the Data Unit Converter to switch between bits and bytes.
Our JSON Formatter highlights syntax errors and invalid structure automatically.
Yes, our QR Code Generator allows you to download high-quality PNGs.
Changing text to UPPERCASE, lowercase, Title Case, etc. Use the Case Converter tool.
It depends on your speed. Use the Bandwidth Calculator to get an exact time estimate.
Use our Password Generator to create random, complex strings locally.
A QR code that stores data directly and never expires. N28 generates static codes.
Multiply bill by tip percentage. Our Tip Calculator handles the math and splitting.
A nibble is 4 bits (half a byte).
The N28 homepage automatically displays your IP's geolocation and ISP.
Yes, N28 focuses on a clean, ad-free user experience.
We are always adding new utilities. Check back often for updates.