Address configurator
local execution
Pattern
0x
Valid
0 1 2 3 4 5 6 7 8 9 A B C D E F
Invalid
G H I J K L M N ... Z and special chars
Case
insensitive by default (A = a)
Mask
? = any hex character (mask mode only)
Quantity
Match mode
Result:
0xDEADf3a9c872b1e4d8...
Options
Case-sensitive matching (distinguishes A from a — slower)
Analysis
Difficulty
—
avg attempts
—
at 100k/s
—
Security
✓Zero server contact during generation. Keys computed locally.
✓Web Worker isolation — generation runs in separate thread.
✓CSPRNG — crypto.getRandomValues() for key entropy.
✓Open source — audit the code on GitHub.
✓Works offline — disconnect after page load.
Paid tier rates
5 chars$5 / $2*
6 chars$30 / $12*
7 chars$180 / $60*
8 chars$700 / $250*
* anywhere mode