Open source alternatives to JustSimple Tools

Logseq is a local-first, open-source knowledge base for notes, outlines and a connected second brain. Notes are organized as outlines of blocks that you link together with bidirectional links, and block references let you reuse an idea on m

FreeOpen source

Odoo is an integrated suite of business apps covering accounting, CRM, sales, inventory, manufacturing, eCommerce, human resources, project management and more, all on one platform. You can start with the apps your business needs and add ot

Open source

Medusa is an open-source commerce platform for developers who want to build their own store backend instead of renting a fixed one. It comes as modules for the parts of commerce (products, carts, orders, pricing, inventory, fulfilment), a c

Open source

Nextcloud is an open-source collaboration platform for syncing and sharing files, chat and video calls, calendars, contacts, email and office documents. You can run the Nextcloud server on your own server, so your files stay under your cont

Open source

Signal is a free messaging app for text, voice messages, photos, videos, GIFs and files, along with voice and video calls. Messages and calls use end-to-end encryption, built on the open-source Signal Protocol, and the site says it cannot r

FreeOpen source

Mailspring is a powerful, fast, and beautiful mail client designed to enhance your email productivity. Available for Mac, Linux, and Windows, Mailspring offers a range of features that make managing your emails easier and more efficient.

FreeOpen source