[Rygu]

Open source implementations available on GitHub:

Python - https://github.com/blockstack/secret-sharing

PHP - https://github.com/mathieuk/secretsharer

Node - https://github.com/amper5and/secrets.js

Go - https://github.com/codahale/sss

C - https://github.com/fletcher/c-sss

Ruby - https://github.com/lian/shamir-secret-sharing

Java - https://github.com/timtiemens/secretshare

Rust - https://github.com/sellibitze/secretshare

[tehrei]

You should be a bit careful with implementations and keep in mind that you can't split a number larger than the prime you've picked. I've seen people go "oh I'll just split an N-byte value into M * N-byte values, splitting each byte separately with the largest prime < 256, surely the loss of a few values per byte won't be of consequence...". It might not be in your case, but you need to be aware of that.