Show HN: Split.style – A Better Way to Format Numbers
Why?
Have you ever struggled to transfer numbers between devices or manually enter OTPs when copy-paste isn't available? Long numeric sequences like account numbers, OTPs, or reference codes become frustrating to read, remember, and type accurately.
US phone numbers are formatted with grouping (like 555-123-4567) precisely because it helps with readability. But when we encounter other types of numbers (account IDs, verification codes, serial numbers), they're typically presented as an unbroken string of digits that's prone to errors when manually transcribed.
split.style solves this by chunking any number into groups of 4 digits and providing audio pronunciation, making it significantly easier to read, remember, and accurately type numbers from one device to another.
Features:
- Groups numbers into easy-to-read chunks of 4 digits
- Audio pronunciation of formatted numbers
- Shareable URLs for your formatted numbers
- Works with any numeric sequence
- Free, no login, no ads
I'd love to hear your feedback, feature requests, or use cases!
It seems to me that the only good reason to deviate from this for non-countable things that don't have an established grouping would be any research that shows groups of 4 starting from the left is better in some way. Off the top of my head, since it's natural to pause between groups when speaking, in theory more digits-per-group = fewer groups = fewer pauses = more efficient.
In any case, number grouping is something interesting to think about. It's definitely annoying to search the back of a TV and find that the serial number is 16 digits crammed together in a 2 pt. font!
eg. 1,000.50 1,000,000.50
It’s similar in spirit to how we format phone numbers: not for mathematical value, but for human readability.