Browse the best open-source alternatives by proprietary software.

Chargebee

chargebee

Subscription billing and revenue management platform that automates recurring payments, invoicing, and financial operations for SaaS businesses worldwide.

CleanShot

cleanshot

The best screenshot and screen recording app for Mac with a built-in annotation tool, Cloud uploading, scrolling capture, and a lot more.

Devin

devin

AI-powered software engineer that autonomously codes, debugs, and deploys applications. Handles complex programming tasks end-to-end with reasoning capabilities.

Dia Browser

dia

Fast, secure web browsing experience with built-in privacy protection and customizable features for enhanced user control.

Fillout

fillout

Create powerful forms, surveys, and quizzes with advanced logic, integrations, and analytics to collect data and automate workflows efficiently.

Firebase Studio

firebase-studio

Firebase Studio accelerates your entire development lifecycle with AI agents. Build backends, front ends, and mobile apps, all in one place.

Front

front

Front transforms team email into a collaborative workspace where multiple users can manage shared inboxes, assign conversations, and provide unified customer support.

Heroku

heroku

A platform as a service (PaaS) that enables developers to build, run, and operate applications entirely in the cloud.

Humanloop

humanloop

Build, evaluate, and deploy AI applications with collaborative prompt engineering, model testing, and performance monitoring tools.

Keap

keap

CRM and automation platform built exclusively to help small businesses save time and grow without the chaos.