ripienaar/free-for-dev: A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev
The Power of Serverless for Front-End Developers | The Power of Serverless
Mattermost: Open Source, Private Cloud Slack Alternative
Mattermost Integrations - Powerful integrations to help your team do better work, faster.
Zulip: Open-source team chat with topic-based threading
LivingWithPixels - YouTube web design and hosting
Postage
Portfolio/Resume
How to Build an Effective Dev Portfolio
履歷｜漁翁撒網也應專業點！犯上 4 大寫 CV 毛病 印象分立即清零
CV 要避免寫這 10 個字！專家：別用“responsible for”+35 個實用詞語
Kanban/Admin Panel/Dashboard
17 Best React Admin Dashboard Templates 2019 - Colorlib
Free React Dashboards - Chakra, M-UI and Ant Design - DEV Community
Kanban Explained in 10 Minutes | Kanbanize
Kanban Explained in 10 Minutes | Kanbanize
Wekan — Open-Source kanban
TasksBoard | Desktop app for Google Tasks
React Admin
React-admin - Documentation
marmelab/react-admin: A frontend framework for building admin SPAs on top of REST services, using React and Material Design 2.x, admin-on-rest (1.x) is in maintenance mode
react-admin/UPGRADE.md at master · marmelab/react-admin
How to build an admin panel with React - LogRocket Blog
AdminBro - Auto-generated admin panel for node.js with react Home
SoftwareBrothers/admin-bro: AdminBro is an admin panel for apps written in node.js
Cube.js | Open Source Analytics Framework
Real Time Dashboard Guide Demo
Invoicing
Free Open-Source Invoices, Expenses & Time-Tracking | Invoice Ninja
Crater Invoice - Financial OS as a Service
crater-invoice/crater: Open Source Invoicing Solution for Individuals & Businesses
Crater: Open-Source Laravel Invoicing App - Laravel News
Crater Invoices - Open Source, Self Hosted Invoicing and Billing software with Power! - YouTube
Payment
Building a payments system with React and Stripe - LogRocket Blog
在不支援金流的網站拍賣物品，如何建立屬於自己的 Paypal 收款連結？ | T 客邦
掌舖 Boutir - 一部手機就可以開網店的工具
Digital Payment Gateway | PayDollar
Membership Site Handbook | Memberful.com
Online payment processing for internet businesses - Stripe 3.5% + HK$2.5 per transaction
Learn how PayPal can benefit you and yours at home – PayPal
Accept Payments | Accept Credit Cards | PayPal HK Commercial Transaction ~4%, QR Code 1.7%; Payout $7
Best way for artists and creators to get sustainable income and connect with fans | Patreon 5% of monthly subscriptions
Pricing | Patreon
Memberful — Monetize your passion with membership. | Memberful.com 10% of income, requires Stripe
How it works | Memberful.com subscription, goods, courses
Cap. 112 Inland Revenue Ordinance
eCharity Online Donation Payment Service | PayDollar
愛心「傳」款
屬公共性質的慈善機構及信託團體的稅務指南
Tax Guide for Charitable Institutions and Trusts of a Public Character
Licensing
What's the best way to sell a client-side JavaScript library?
Unlock - Cloud-based billing, licensing & distribution
Sell digital products and downloads the easy peasy way with Lemon Squeezy
Gumroad – Sell what you know and see what sticks
License Keys - Gumroad Help Center
Custom Delivery - Gumroad Help Center
Fixing Schedule
Free online meeting scheduling tool | Doodle
Project Management
The Top 10 Free and Open Source Project Management Software for Your Small Business - Capterra Blog
GanttProject: free desktop project management app Java app
2-plan Desktop Java app
2-plan Team – Open-Source Project Software web app
JIRA - Issue & Project Tracking Software | Atlassian
About :: Bugzilla :: bugzilla.org
Analytics
Workflow
Joget – Open Source Low-Code Application Platform, Business Automation and Workflow Software for Faster, Simpler Digital Transformation GPL
Joget Workflow for Google Apps - G Suite Marketplace
Joget Workflow v6 - Apps and the App Center - YouTube
Wexflow - Open source workflow engine
Imixs-Workflow | Open Source Workflow Engine
Budibase | Build internal tools in minutes, the easy way
n8n.io - Free and Open Workflow Automation Tool
n8n-io/n8n: Free and open fair-code licensed node based Workflow Automation Tool. Easily automate tasks across different services.
n8n - an open source, self hosted info transform & workflow automation tool w/ drag and drop ease. - YouTube
SMS Reception
could have used #Twilio, but existing service is easier and cheaper
SMS-Activate - service for receiving virtual SMS online to virtual SIM
History is public:
Receive SMS online | Temporary Phone Number | Russian Federation Phone Number
Receive SMS Online 24/7, Secure Verification - AnonymSMS
Receive SMS Online for FREE - UK,Romania,USA,Spain,France,Germany,Russia
Receive SMS Online | Temporary Phone Number | Receive SMS Free
Receive SMS Online | Temporary and Disposable Phone Numbers
Temporary Phone Numbers | Receive SMS online
SMS Delivery
Plivo - APIs for SMS, Voice Calls & Phone Numbers Globally.
All Your Digital Marketing Tools in One Place – Sendinblue
Nexmo Developer
Twilio
Twilio - Communication APIs for SMS, Voice, Video and Authentication
Each account has master account SID and auth token, but it is safer to create revocable API keys and secrets per application in Twilio Console - Project API Keys.
Getting Started with Alphanumeric Sender ID for Twilio Programmable SMS – Twilio Support
Note: Pre-registered Alphanumeric Sender ID Required for A2P SMS in Hong Kong Effective January 1, 2022
Phone Number Verification without Regular Expression - Twilio
China SMS Template Whitelisting – Twilio Support
What's App
How to use click to chat | WhatsApp Palīdzības centrs
https://wa.me/<phone>?text=<urlencodedtext>
Free API to Send Whatsapp Messages - CallMeBot API
ESP32: Send Messages to WhatsApp | Random Nerd Tutorials
Monetization
Patreon vs YouTube Channel Membership - Which one is better?
SEO
Webmasters - Sharing
Ahrefs - SEO Tools & Resources To Grow Your Search Traffic
Think with Google - Discover Marketing Research & Digital Trends
【SEO 第一聖經】史上最齊全 SEO 自學筆記 | RE:LAB
Meta Tags — Preview, Edit and Generate
OpenGraph - Preview Social Media Share and Generate Metatags
Open Graph Checker - Facebook Open Graph Tags Preview Online Free
NachoSEO/seo-scraper: Scrape SEO elements or whatever you need with this scraper built in Node.js
Sharing Debugger - Facebook for Developers bust Facebook cache
How to Use Facebook Debugger to Fix Images in Shares
Open Graph Meta Tags: Everything You Need to Know
What You Need to Know About Creating FB's Link Previews
Introducing OG Image Generation: Fast, dynamic social card images at the Edge – Vercel
vercel/satori: Enlightened library to convert HTML and CSS to SVG
Vercel OG Image Playground
Generate Images Programmatically on the Edge - YouTube
Actionable SEO Tips and Strategies That Work
The Anatomy of a Large-Scale Hypertextual Web Search Engine – Google Research PageRank paper in 1998
Introducing the Knowledge Graph: things, not strings Google used graphs in 2012
Research Papers May Show What Google MUM Is Google announces internal trial of MUM in 2021
How to build fast and SEO friendly web apps using ReactJs, Redux and NextJs
Make Your NextJS Website more SEO Friendly in 2022. Easily Add an Auto-updating Sitemap to it. | by Salvor Pirenne | Dec, 2021 | Level Up Coding
WordPress
Ultimate WordPress SEO Guide: Optimize Your Site in 2021
WordPress SEO Made Simple - A Step-by-Step Guide (UPDATED)
WordPress SEO Beyond the Basics: 8 Things You Must Do Next
10 Awesome WordPress SEO Plugins to Optimize Your Site
WordPress SEO Without an SEO Plugin
How to Setup All in One SEO for WordPress Correctly (Ultimate Guide)
Joomla
Search Engine Optimization (SEO) in Joomla
Forms/Survey
10 Tools For Conducting Live Polls During A Presentation | Presentation Guru
Top 21 Best Online Survey Software and Questionnaire Tools in 2021 - Mopinion
Google Forms: Free Online Surveys for Personal Use
Google Forms cheat sheet | Computerworld
SurveyMonkey: The World’s Most Popular Free Online Survey Tool
Create online forms with Formlets, the best online form creator
Create Free Online Surveys, Quizzes and Forms - FreeOnlineSurveys
Free Online Form Builder & Form Creator | JotForm
Cognito Forms: Free Online Form Builder
Join a presentation - Mentimeter response to word cloud
Slido - Audience Interaction Made Easy
Free Online Form Builder & Form Creator | Jotform
How to Create a Contact Form With Next.js and Netlify | CSS-Tricks
Document
Welcome to relatorio’s documentation! — relatorio documentation generates OpenOffice document from code
Fdawgs/docsmith: RESTful API for converting clinical documents and files
Excel (Pandas)
Working with Python Pandas and XlsxWriter — XlsxWriter Documentation
Example: Pandas Excel output with a line chart — XlsxWriter Documentation
Learn How to (easily!!) do 3 Advanced Excel Tasks in Python | by Nik Piepenbreier | Towards Data Science
How to Automate Excel Tasks with Python
[程序员小飞]2020 年 Python 处理 Excel 最新基础入门教程 - YouTube
Python Excel
Chapter 12 – Working with Excel Spreadsheets - Automate the Boring Stuff with Python
How to integrate Excel with Python | Towards Data Science
How to Supercharge Excel With Python | by Costas Andreou | Towards Data Science xlwings
Will Python Kill VBA in 2021? - YouTube xlwings
Excel to Python. Building front-end Excel workbooks for… | by James Briggs | Towards Data Science openpyxl
A Complete Yet Simple Guide to Move from Excel to Python | by Frank Andrade | Apr, 2021 | Towards Data Science
Automate Excel with Python | by KahEm Chu | May, 2021 | Towards Data Science PyWin32
openpyxl
openpyxl - A Python library to read/write Excel 2010 xlsx/xlsm files — openpyxl documentation
A Guide to Excel Spreadsheets in Python With openpyxl – Real Python
openpyxl.workbook.workbook module — openpyxl documentation
openpyxl.worksheet.worksheet module — openpyxl documentation
openpyxl.cell.cell module — openpyxl documentation
openpyxl.styles package — openpyxl documentation
Working with styles — openpyxl documentation
Worksheet Tables — openpyxl documentation
openpyxl.worksheet.table module — openpyxl documentation
XlsxWriter
Better for creating new file
Creating Excel files with Python and XlsxWriter — XlsxWriter Documentation
The Workbook Class — XlsxWriter Documentation
The Worksheet Class — XlsxWriter Documentation
The Format Class — XlsxWriter Documentation
Tutorial 2: Adding formatting to the XLSX File — XlsxWriter Documentation
PyXLL
Paid add-on to run Python in Excel
The Python Add-In for Microsoft Excel | PyXLL
Tools for Working with Excel and Python | PyXLL
Multi-Dimensional Optimization: A Better Goal Seek | PyXLL
A Better Excel Goal Seek using Python - Towards Data Science
Word
python-docx — python-docx documentation
第 105 天： Python 操作 Word - 纯洁的微笑博客
Reading and Writing MS Word Files in Python via Python-Docx Module
Getting Started
dolanmiu/docx: Easily generate .docx files with JS/TS with a nice declarative API. Works for Node and on the Browser.
Paid Solution
PDFTron - PDF SDK with 100's of Features, Fast Setup viewer
FlowPaper - Responsive online PDF viewer for your website viewer with fancy effects
ReportLab
ReportLab open-source PDF Toolkit - ReportLab.com Python
MrBitBucket/reportlab-mirror: mirror of https://bitbucket.org/rptlab/reportlab
Documentation - ReportLab.com
Reportlab | The Mouse Vs. The Python
A Simple Step-by-Step Reportlab Tutorial | The Mouse Vs. The Python
ReportLab 101: The textobject | The Mouse Vs. The Python
borb
borb | Read, write, and edit PDF files with borb, a pure python library AGPL
jorisschellekens/borb: borb is a library for reading, creating and manipulating PDF files in python.
jorisschellekens/borb-examples
Creating a PDF Document in Python with borb
Creating PDF Invoices in Python with borb
iCalendar
RFC 5545 - Internet Calendaring and Scheduling Core Object Specification (iCalendar)
ics
Ics.py : iCalendar for Humans — ics.py documentation
icalendar
Internet Calendaring and Scheduling (iCalendar) for Python — icalendar documentation
How to use Python to create an iCalendar file from a Word table - Erik Marsja