Imba - Take a whole lot of Ruby, a pinch of Python and some React, get Imba
Clio - Clio provides a full suite of web-based practice management tools targeted specifically at the administrative needs of sole practitioners and small firms.
Mint - Free personal finance software to assist you to manage your money, financial planning, and budget planning tools. Achieve your financial goals with Mint.
MyCase - Practice More, Manage Less.
Scala.js - Build robust front-end web applications in Scala with Scala.js
PracticePanther - PracticePanther offers CRM, invoicing, time tracking and communication solutions for law firms.