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tools.timodenk.com is a collection of online tools. It is being gradually expanded and open source.
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Cubic spline interpolation
Performs and visualizes a cubic spline interpolation for a given set of points.
Digit span test
Test how many digits you can remember in your short-term memory.
Piano note practice
Shows piano notes and asks the user to name them
Text to Morse code translator
Translates text into Morse code.
All tools (35)
Binary to decimal conversion
Converts a binary number into decimal format.
Browser geolocation
Lists the geolocation information that is provided by your web browser.
Char code
Shows the UTF-16 char code of a given character.
Cubic spline interpolation
Performs and visualizes a cubic spline interpolation for a given set of points.
Daily cost calculator
Computes the daily cost of one-time expenses.
Decimal to binary conversion
Converts a decimal number into binary format.
Digit span test
Test how many digits you can remember in your short-term memory.
Gaussian elimination
Uses the Gaussian elimination for solving systems of linear equations represented by a matrix.
GMX.net login mask
Log on to your gmx.net account without the joy of visiting their welcome page.
Hash function
Computes a hash value using the selected algorithm.
HEX to RGB conversion
Converts an RGB-color from HEX notation to RGB.
IEEE 754 floating point
Visualizes and converts between a floating point number and the IEEE 754 floating point format.
IP address
Shows your IP address.
Key code
Shows the value of a key or keys pressed by the user and the implementation depended key code.
Linear interpolation
Performs and visualizes a linear interpolation for a given set of points.
Markdown table to HTML
Converts a Markdown table into the corresponding HTML code.
Morse code to text translator
Translates Morse code into text.
Normal time to Unix timestamp converter
Converts a readable time into a Unix timestamp.
Piano note practice
Shows piano notes and asks the user to name them
Point set creator
Create a set of points by clicking on a canvas (e.g. for testing of clustering algorithms).
Poker odds pre-flop heads-up
Shows the precise odds for any pre-flop heads-up situation in Texas Hold'em poker.
Polynomial interpolation
Performs and visualizes a polynomial interpolation for a given set of points.
Quadratic interpolation
Performs and visualizes a quadratic interpolation for a given set of points.
Request headers
Shows all headers of your HTTP request.
RGB to HEX conversion
Converts an RGB-color into HEX notation.
Search and replace
Serches through a text and replaces all occurences of a given substring.
TeX math to image conversion
Converts TeX Math (e.g. "f(x)=x^2") to SVG, JPEG, BMP, and PNG images.
Text to Morse code translator
Translates text into Morse code.
Typing speed
Determine how fast you can type a character sequence of choice.
Unix to normal time converter
Converts a Unix timestamp into a readable time string.
Violin fingerboard map
Visualizes the violin fingerboard positions for different keys.
Website page source
Shows the page source of a given website.
Word count
Shows amongst other things how many words and characters a given text contains.