Online-Utility.org
Utilities for Online Operating System

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This index is updated periodicly so it might not be accurate.

English language
Free English language Tools
Document readability
Helps you write Simple English or Basic English
New Words English Dictionary
Learn English Text
Filtered word frequencies
Vocabulary builder
Dictionary

Text tools
Online text analysis tool
Online Sort
Online Grep
Free online text tools
Helps understand foreign language text
Finds most frequent words of web site content
Produces misspelled text

Webmaster and SEO
Webmaster and SEO tools
Keywords suggestion
Anchor text analyzer of backlinks
Host and IP backlink analysis
Domain backlink analysis
Finds English keywords
Algorithms for detection of unnatural links

Measurement
Measurements conversion - different measurements units
Length measures converter
Spread rate (mass) measurement unit converter
Spread rate (volume) measurement unit converter
Mass measurement unit converter
Power measurement unit converter
Volume measurement unit converter
Area measures converter
Line density measurement units converter
Pressure measurement unit converter
Energy measurement unit converter
Torque measurement unit converter
Volumetric density units converter
Force measurement units converter

Math
Mathematic related tools and information
Math calculations
Small tutorial on math calculation
Compound Interest Calculator
Lease Calculator
Loan Calculator
Present Value of Future Money
Retirement Planning Calculator

Others
Various on-line utilities
Convert images to another format
Various websites lists about websites which have many links from Wikipedia
Search best websites or best websites in specific category