It seems to be a widespread impression that Indian developers are mostly consumers, and not contributors, of FOSS. To dispel this myth, we are compiling a list of some of the best open-source software that were primarily built primarily by Indian developers. This is just a list, NOT a ranking. For any additions or modifications in this list, send a pull request.

Actively maintained

Calibre

Calibre (website, github) is a very popular, one-stop e-book management app.

Hasura

Hasura (website, github) is a software written in Haskell that lets you quickly build a GraphQL backend by introspecting your PostgreSQL database’s schema. Similar tools exist (Graphile, PostgREST) but Hasura is most feature-complete and supports most realistic use-cases.

HoppScotch (Postwoman)

HoppScotch (website, github) is a FOSS alternative to Postman. It lets you manage API collections and works with HTTP, GraphQL, WebSockets etc. Unlike Postman, it is not an Electron-app and uses localStorage to save your requests.

Simple

Simple (website, github) is a fast, free, FHIR-compliant app for clinicians to manage their patients with high blood pressure. Already being used by more than 150K patients, Simple was built by folks at Nilenso and Obvious. It’s written in Kotlin and Ruby on Rails.

ERPNext

ERPNext (website, github) is a modern, easy-to-use, free, business system used by more than 3,000 enterprises.

ChatWoot

ChatWoot (website, github) is a customer support tool for instant messaging channels. During 2019 #Hacktoberfest, the maintainers decided to make it opensource instead of letting the code rust in a private repo. With a pleasant surprise, Chatwoot became a trending project on Hacker News and best of all, got lots of love from the community.

Responsively

Responsively (website, github) is a responsive design testing tool for frontend developers. You can preview your website at multiple screen sizes side-by-side which are also synchronized - even while inspecting.

PupilFirst

PupilFirst (website, github) is a learning management system (LMS) that lets you run an asynchronous online school, where learning is achieved through focused tasks, directed feedback, an iterative workflow, and community interaction.

Foxtrot

Foxtrot (github) is a data store abstraction service for storing event data for real-time systems. It combines the power of fast row get/put by HBase and powerful indexing and aggregation features provided by Elasticsearch. It's in active development by Flipkart and PhonePe.

Indic Keyboard

Indic Keyboard (website) is a MOSS Award winning, privacy aware, versatile keyboard for Android users who wish to use Indic and Indian languages. It currently supports 23 languages and 57 layouts. It went one step ahead and even removed the Internet permission that Android grants by default to all apps!

BlobCity DB

BlobCity DB (website, github) is a fast ACID compliant NoSQL DataLake with support for storing 17 formats of data. Full SQL and DML capabilities along with Java stored procedures for advanced data processing.

CP Editor

CP Editor (website, github) is a Qt-based, lightweight and cross-platform code editor specially designed for competitive programming. It makes your competitive coding life easier 😁 by automating many things for you.

Bagisto

Bagisto (website, github) is a free and open-source eCommerce framework built with Laravel & PHP.

UVdesk

UVdesk (website, github) is a free and open-source helpdesk project built with Symfony(PHP framework).

ListMonk

ListMonk (github) is a high performance, self-hosted newsletter and mailing list manager with a modern dashboard. Written in Go and React.

Bahmni

Bahmni (website) is an easy-to-use EMR & hospital system for low-resource settings. It combines and enhances existing open source products like OpenMRS, OpenERP and OpenELIS and was built by ThoughtWorks. It has roughly 250 deployments across the world now.

OpenEBS

OpenEBS (website, github) is the most active Container Attached Storage project that is truly Kubernetes native and 100% in userspace.

GNUKhata

GNUKhata (website) is a GST and VAT compliant accounting software.

CircuitVerse

CircuitVerse (website, github) is a product developed by students at IIIT-Bangalore. It aims to provide a platform where circuits can be designed and simulated using a graphical user interface.

AppSmith

AppSmith (website, github) is an internal-tool builder that quickly lets you connect UI elements to database sources and APIs, with access control and collaboration built in. Unlike Retool, these tools can even be made public. This is a new, but promising project.

Swathanthra Malayalam Computing

Swathanthra Malayalam Computing (website, gitlab) is a free software collective engaged in development, localization, standardization and popularization of various Free and Open Source Softwares in Malayalam language.

AdonisJS

AdonisJS (website, github) is a Node.js Framework highly focused on developer ergonomics, stability and confidence.

Kitty

Kitty (website, github) is a cross-platform, fast, feature-full, GPU based terminal emulator. Built by the developer of Calibre.

PySPH

PySPH (website, github) is a framework for Smoothed Particle Hydrodynamics. It is implemented in Python and the performance critical parts are implemented in Cython and PyOpenCL.

Wassup

Wassup (website, live demo, github) is a privacy-first open-source personal assistant to help keep your personal memories and emotions together.

Better

Better (github) is a browser extension for Chrome/Firefox that recommends better alternatives to products and services via in-page pop-ups. The lists are community curated.

Did we miss something? Talk to us on Twitter or send a pull request.

Websites

HasGeek

Hasgeek (website, github) builds and curates discussion spaces for geeks. They host some of the best technical conferences in India. All of their software for managing these events, is open-source.

StoryWeaver

StoryWeaver (website) is a digital platform of open storybooks for children in multiple languages.

LearnAwesome

LearnAwesome (website, github) is building humanity’s universal learning map. It’s a repository of links to learning resources categorized with topics, formats, and quality attributes. Think of it as GoodReads — generalized for learners that learn from not just books, but all media formats: books, videos, courses, podcasts, livestreams, newsletters, apps, interactive explorables, games, meetups etc.

Inactive Projects

Fedena

Fedena (website, github) is a free & opensource school management software. Last commit was in July 2016