Tools to download

GIMP - images 

Audacity - audio editing

 

Riddles and Puzzles The Daily SuDoku
Had To Play On Forums 
The Master Theorem
Puzzles - Sudoku and Gogen Solutions  
Clueless Crosswords - Solve a Puzzle
LogicProblems and Solutions
MIT Mystery Hunt:

Mystery Mystery Hunt List of Puzzles
At the Crossroads
God's Gift to Cartooning


General Riddle and Cipher Help Sites Nordinho.net Community 
Red Luth 
Purple Hell - archived but bits still work

https://www.geocachingtoolbox.com/  
https://www.dcode.fr/en 
https://www.mytecbits.com/tools/
https://www.omniglot.com/

 

 

Anagrams Andys anagram solver
http://dictionary.sensagent.com/


Word tools Crossword Solver
Connections - before and after


Numbers Base-N Calculator
Base64 Decode and Encode
Thai numerals - Wikipedia 
Hex Calculator and other calculators
ASCII hex decimal
http://datagenetics.com   hex words
https://numbersdb.org/ 


Maths https://www.rapidtables.com/
https://quickmath.com/



Colours and Images - also see GIMP https://imagecolorpicker.com/
http://imgops.com/ 
https://imagecolorpicker.com/ 
http://exif.regex.info/exif.cgi

https://futureboy.us/stegano/decinput.html


Other Latitude and Longitude Finder  
Keyboard Conversions
Can you talk Brummie rhyming slang?