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Tuxgraphics free online toolbox with utilities and calculators

IP and Networt address calculator

• Network address calculator
  Javascript Network calculators and IP-address converters
  
  

RPN pocket calculator and number converters

• gsrpn, Reverse Polnish Notation calculator
  A HP like Javascript RPN calculator with keyboard interface.
  
  
• A HEX/BIN/DEC number converter
  Convert between different number bases.
  
  
• A javascript based scientific pocket calculator
  
  

Resistors and Capacitors

• Resistor and capacitor guide,
  How color codes for resistors and value encoding on capacitors work.
  
  
• Calculators for electronic circuit design
  
  

Encoder

• base64 http basic authorization encoder
  Encode username and password into a string suitable for HTTP authorization.
  Use this if you want to post to twitter or idendenti.ca from a tuxgraphics ethernet board.
  
  

Units Converter

• Unit converter
  Convert between imperial and metric units.
  
  

International Spelling Alphabet

• The International Spelling Alphabet
  This is the NATO phonetic alphabet as used by pilots.
  
  

Calendar

• Calendar, month view with week numbers
  calendar date converter.
  
  
• Calendar, year view
  calendar with week numbers.