Boostnote is an open source note-taking app made for programmers just like you. Your markdown notes are saved automatically as you write and various formatting options have semi-live previews so you can double check what you’re writing. Text is formatted as you type.
 
For code snippets the app is able to highlight code syntax in more than 100 languages, including Javascript, Python, HTML and CSS and you can store multiple code snippets within the same snippet. Easy to write notes from anywhere, even if you're offline. When you update notes on your laptop, they are also reflected on your mobile devices.

Boostnote is an open source note-taking app made for programmers just like you. Your markdown notes are saved automatically as you write and various formatting options have semi-live previews so you can double check what you’re writing. Text is formatted as you type.



Boostnote - Note-taking app made for programmers just like you.

Mailspring is built on the modern web with Electron, React, and Flux. It is designed to be extensible, so it's easy to create new experiences and workflows around email. 
 
Mailspring comes packed with powerful features like Unified Inbox, Snooze, Send Later, Mail Rules, Templates and more. Mailspring Pro, which you can unlock with a monthly subscription, adds even more features for people who send a ton of email: link tracking, read receipts, mailbox analytics, contact and company profiles. All of these features run in the client - Mailspring does not send your email credentials to the cloud. 
 
You can have unified inbox as it supports every major mail provider—Gmail, iCloud, Office 365, Outlook.com, Yahoo!, and IMAP/SMTP—so you have a single, streamlined command center for all your messages.

Mailspring is built on the modern web with Electron, React, and Flux. It is designed to be extensible, so it's easy to create new experiences and workflows around email. 

Mailspring - A beautiful, fast Webmail

Nativefier is a command line tool that allows you to easily create a desktop application for any web site with succinct and minimal configuration. Apps are wrapped by Electron in an OS executable (.app, .exe, etc.) for use on Windows, macOS and Linux.

Nativefier - Make any web page a desktop application

 The Markdown-based note-taking app that doesn't suck. I couldn't find a note-taking app that ticked all the boxes I'm interested in: notes are written and rendered in GitHub-Flavored Markdown, no WYSIWYG, no proprietary formats, I can run a search & replace across all notes, notes support attachments, the app isn't bloated, the app has a pretty interface, tags are indefinitely nestable and can import Evernote notes (because that's what I was using before).

notable - The Markdown-based note-taking app that doesn't suck

The smoothest, best looking, and easiest to use SQL client for MySQL, Postgres, SQLite, SQL Server, Red shift, MariaDB, CockroachDB and more.

Beekeeper Studio - Open Source SQL Editor and Database Manager

Zettlr is an Electron-based app, A Markdown Editor for the 21st century. With Zettlr, writing professional texts is easy and motivating: Whether you are a college student, a researcher, a journalist, or an author — Zettlr has the right tools for you. It has a revolutionary search algorithm with integrated heatmap. It is available in over a dozen languages



Zettlr - A Markdown Editor for the 21st century.

DbGate is cross-platform database manager. It's designed to be simple to use and effective, when working with more databases simultaneously. But there are also many advanced features like schema compare, visual query designer, chart visualisation or batch export and import. It supports MySQL, PostgreSQL ,SQL Server, MongoDB, Redis, SQLite, Amazon Redshift, CockroachDB, and MariaDB.
 
Its features include: 
<ul>
<li>Table data editing, with SQL change script preview</li>
<li>Edit table schema, indexes, primary and foreign keys</li>
<li>Compare and synchronize database structure</li>
<li>ER diagram</li>
<li>Light and dark theme</li>
<li>Master/detail views, foreign key lookups</li>
<li>Query designer</li>
<li>Form view for comfortable work with tables with many columns</li>
<li>JSON view on MongoDB collections</li>
<li>Explore tables, views, procedures, functions, MongoDB collections</li>
<li>SQL editor
<ul dir="auto">
<li>execute SQL script</li>
<li>SQL code formatter</li>
<li>SQL code completion</li>
<li>Add SQL LEFT/INNER/RIGHT join utility</li>
</ul>
</li>
<li>Mongo JavaScript editor, execute Mongo script (with NodeJs syntax)</li>
<li>Redis tree view, generate script from keys, run Redis script</li>
<li>Runs as application for Windows, Linux and Mac. Or in Docker container on server and in web Browser on client.</li>
<li>Import, export from/to CSV, Excel, JSON, XML</li>
<li>Free table editor - quick table data editing (cleanup data after import/before export, prototype tables etc.)</li>
<li>Archives - backup your data in JSON files on local filesystem (or on DbGate server, when using web application)</li>
<li>Charts, export chart to HTML page</li>
<li>For detailed info, how to run DbGate in docker container, visit <a href="https://hub.docker.com/r/dbgate/dbgate" rel="nofollow">docker hub</a></li>
<li>Extensible plugin architecture</li>
<li>Perspectives - nested table view over complex relational data</li>
</ul>

DbGate is cross-platform database manager. It's designed to be simple to use and effective, when working with more databases simultaneously. But there are also many advanced features like schema compare, visual query designer, chart visualisation or batch export and import. It supports MySQL, PostgreSQL ,SQL Server, MongoDB, Redis, SQLite, Amazon Redshift, CockroachDB, and  MariaDB.

DbGate- Database manager for MySQL, PostgreSQL, SQL Server, MongoDB, SQLite and others

AFFiNE is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable and ready to use. AFFiNE is privacy focussed, offline-first application.
AFFiNE helps you to write, draw and plan all at once. Assemble any blocks you love on any canvas you like to enjoy seamless transitions between workflows with AFFiNE.
AFFiNE has support for modern block editor which can help you not only for docs, but slides and tables as well. It has a great support for collaboration, you can collaborate with yourself across devices and also collaborate with others in the team.
It is a great alternative to Notion and Mira.

AFFiNE - A privacy-focussed, local-first, open-source, and ready-to-use alternative for Notion & Miro

Mongotron is cross platform Mongo DB management. A Mongo DB GUI built using Electron, and Angular Js.

Mongotron - Cross platform Mongo DB management

Caprine is an unofficial and privacy focused Facebook Messenger app with many useful features. It has support for Work Chat: Messenger for Workplace, You can send code blocks by using Markdown syntax. It is built with Electron framework.

Caprine - Elegant Facebook Messenger Desktop App

RxDB is a realtime Database for the Web. It is reactive data-handling based on RxJS. It helps App to work even without internet. It supports Mango-Query, Encryption, Import/Export of database and lot more.

RxDB - A realtime Database for the Web

Franz is a messaging app that combines chat & messaging services into one application. Franz currently supports Slack, WhatsApp, WeChat, Facebook Messenger, Telegram, Google Hangouts, GroupMe, Skype and many more. Franz allows you to add each service many times. This makes Franz the perfect tool to manage multiple business and private accounts all at the same time. You could even use five different Facebook Messenger accounts at once, if some inexplicable reason urges you to do so.

Franz - Free messaging app for services like WhatsApp, Slack, Messenger and many more

Medis is a beautiful, easy-to-use Redis management application built on the modern web with Electron, React, and Redux. It's powered by many awesome Node.js modules, especially ioredis and ssh2. It supports Keys viewing/editing, JSON/MessagePack format viewing/editing and built-in highlighting/validator, Working with millions keys and key members without blocking the redis server and lot more.

Medis - Beautiful, easy-to-use Mac database management application for Redis.

Theia is an extensible platform to develop full-fledged multi-language Cloud & Desktop IDE-like products with state-of-the-art web technologies. Theia is entirely written in TypeScript and clearly separates the UI frontend from the backend. The frontend runs in modern browsers or as a Desktop app using Electron with either local or remote (cloud) backends. 
 
Theia provides the VS Code experience in the browser. It integrates a full featured terminal, that reconnects on browser reload keeping the full history. Theia is based on a state-of-the-art web-based technology stack. It provides language support via LSP and DAP.

Theia is an extensible platform to develop full-fledged multi-language Cloud & Desktop IDE-like products with state-of-the-art web technologies.  Theia is entirely written in TypeScript and clearly separates the UI frontend from the backend. The frontend runs in modern browsers or as a Desktop app using Electron with either local or remote (cloud) backends. 

Theia - Cloud & desktop IDE framework implemented in TypeScript

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API. Playwright is built to enable cross-browser web automation that is ever-green, capable, reliable and fast. Headless execution is supported for all the browsers on all platforms.
 
It supports native mobile emulation of Google Chrome for Android and Mobile Safari. Same rendering engine works on your Desktop and in the Cloud. It waits for elements to be actionable prior to performing actions. It also has rich set of introspection events. The combination of the two eliminate the need for artificial timeouts.
 
Playwright is aligned with the modern browsers architecture and runs tests out-of-process. This makes Playwright free of the typical in-process test runner limitations. Playwright creates a browser context for each test. Browser context is equivalent to a brand new browser profile. This delivers full test isolation with zero overhead.

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API. Playwright is built to enable cross-browser web automation that is ever-green, capable, reliable and fast. Headless execution is supported for all the browsers on all platforms.



Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API

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