Factorio Blueprint String Encoder/Decoder
Visit the running site at https://factorioprints.mybluemix.net
Note that REST API endpoints are available too:
curl -X POST https://factorioprints.mybluemix.net/encode -d '{ "json": "content" }'
curl -X POST https://factorioprints.mybluemix.net/decode -d 0eJyrVsoqzs9TslJKzs8rSc0rUaoFADvkBnA=