Launching a SaaS?·Collect waitlist signups before you build — before.run
/./
regex.to
SandboxPatternsDetectDocs
Crypto
#lightning
#bitcoin
#bolt11
#invoice

Lightning Network Invoice (BOLT-11)

Matches a Bitcoin Lightning Network payment invoice in BOLT-11 format — starts with lnbc, lntb, or lnbcrt.

✓ Lightning payment validation✓ Wallet apps✓ Bitcoin point-of-sale
/
/
Test String
2 matches
ll— 'l' — literal character
nn— 'n' — literal character
(…)Group #1— Capturing group — captures matched text for reuse or extraction
bb— 'b' — literal character
cc— 'c' — literal character
||— | — alternation: matches expression on left OR right
tt— 't' — literal character
bb— 'b' — literal character
||— | — alternation: matches expression on left OR right
bb— 'b' — literal character
cc— 'c' — literal character
rr— 'r' — literal character
tt— 't' — literal character
\d*digit— \d — digit (0–9) — repeated zero or more times (greedy) · * — zero or more times (greedy)
[…]?Character class […]— Matches any single character listed in this set — repeated zero or one time (optional) · ? — zero or one time (optional)
mm— 'm' — literal character
uu— 'u' — literal character
nn— 'n' — literal character
pp— 'p' — literal character
[…]+Character class […]— Matches any single character listed in this set — repeated one or more times (greedy) · + — one or more times (greedy)
a-za-z— a-z — range from 'a' to 'z'
0-90-9— 0-9 — range from '0' to '9'
Pattern: 33 charsInput: 188 chars
100% client-side · private

✓ Valid Examples

  • lnbc1pvjluezpp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypqdpl2pkx2ctnv5sxxmmwwd5kgetjypeh2ursdae8g6twvus8g6rfwvs8qun0dfjkxaqfppnqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqppnqqq
  • lntb100n1...

✗ Invalid Examples

  • bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq
  • not-an-invoice
  • lnxx123