Best Editor for working with Log files and Regex support

Best Editor for working with Log files and Regex support 

Best Editor for working with Log files -Editpad Lite or Pro
Download https://www.editpadlite.com/

Online Regex Testing site :
http://regexr.com/
http://www.regexe.com/
http://myregexp.com/

RegEx Cheat sheet
https://www.cheatography.com/davechild/cheat-sheets/regular-expressions/

Common Examples:

* Ah* matches "Ahhhhh" or "A"

? Ah? matches "Al" or "Ah"

+ Ah+ matches "Ah" or "Ahhh" but not "A"

\ Hungry\? matches "Hungry?"

. do.* matches "dog", "door", "dot", etc.

( ) See example for |

[ ] [cbf]ar matches "car", "bar", or "far"
[0-9]+ matches any positive integer
[a-zA-Z] matches ascii letters a-z (uppercase and lower case)
[^0-9] matches any character not 0-9.

| (Mon)|(Tues)day matches "Monday" or "Tuesday"

{ } [0-9]{3} matches "315" but not "31"
[0-9]{2,4} matches "12", "123", and "1234"
[0-9]{2,} matches "1234567..."

^ ^http matches strings that begin with http, such as a url.
[^0-9] matches any character not 0-9.

$ ing$ matches "exciting" but not "ingenious"