● REGEX.LAB — V1
Build, generate &
compare
regular expressions.
01 · Builder
tap to insert
PATTERN
/
/
CHARACTERS
a
letter
0
digit
.
any
\\d
digit
\\w
word
\\s
space
GROUPS & CLASSES
()
group
[abc]
[a-z]
[^a]
|
alt
QUANTIFIERS
*
0+
+
1+
?
0/1
Reset
02 · Language
0 strings
MAX LENGTH:
5
Type a pattern to begin…
03 · Equivalence
bounded check · strings up to length 5
/
/
/
/
Compare
Result will appear here
Regex equivalence is undecidable in general. This performs bounded checking.