Buffer Overflow Pattern Generator
Built first-party for pwnmi — no third-party code vendored here, so no license or attribution question. Same algorithm as the classic Metasploit pattern_create/pattern_offset tools: a 26×26×10 cycle of upper-case, lower-case, and digit triplets, unique up to 20,280 characters (verified before shipping this). Nothing here ever leaves your browser.
Generate a pattern
Max 20,280 — beyond that the pattern would stop being unique, so it's capped rather than silently degrading.
Find the offset
Paste the crashed register value (as hex, e.g. 6941326a) or a literal chunk of the pattern captured some other way. Checked as literal text, as hex read straight through, and as hex byte-reversed (the usual case for a little-endian x86/x64 register value) — whichever one actually matches the pattern is reported.