Web chat widget like intercom; it allows customers to choose contact channels including WhatsApp, FB Messenger, phone, SMS, etc

A Shopify plugin to provide an intercom-like chat button, which redirects visitors to WhatsApp chats with customer support

Chrome extension that provides a convenient Python shell right in your browser

A blog of articles about boostable USB. Make money with AdSense

A website that shows picture posts from Reddit

A basic website that lets you dress a cat on screen by dragging cloths on it

A website that lets people copy & paste text faces like (ง ͠° ͟ل͜ ͡°)ง. Revenue comes from ads

Given the floorplan of an apartment and location of a WIFI router, this Android app visualizes how the WIFI electromagnetic waves propagate

Software for pet business owners. Features include online customer portals, vaccination record upload, marketing automation, etc. Customizable for animal types and breeds

Simple and fully featured mail server / SMTP service, without many complex options

A Google Sheets addon to easily import data from Amazon FBA to Google Sheets, replacing tedious manual data entry

Desktop app that allows users to manual/auto test most common browsers. Target users are those who don't want to use the similar cloud-based services

Software to run digital signage on Raspberry Pi. It's easy to install and provides intuitive web UI to manage digital signage

A fun online typing game with a community site

Subscription service that let users and businesses easily fund climate projects, such as tree planting. It charges 12.5% out of users' fund

An accurate battery meter for Windows. It provides accurate remaining time estimation, notifications, and various custom settings

A blog about growing business and startups, and failure experiences, written by an entrepreneur who sold online business at age 26 for over $1 million. Making money by ads and affiliate sales

A WordPress blog documenting the process of getting a professional engineering license in Canada. Making money by Adsense and affiliate sales

Breville Coffee Grinder's impeller wears out easily and is hard to buy. This page sells a 3D-printed version of the impeller

Provides API for location services, such as API for reverse geocoding (translate a location description to latitude & longitude)

Chrome extension to provide CRM and marketing automation right in Gmail. Features include auto follow up, handy shortcuts, analytics, etc

A web app to plan for future cashflow. Users input transactions and income, and it visualizes future cashflow, monthly breakdown, etc

Amazon listing optimization service, including high-quality product images & videos, description for better conversion, etc

Marketing automation, with focus on LinkedIn lead generation

Fully managed WordPress hosting

Online mindmap drawer; also provides features like collaborative editing and Kanban board task management

An app to schedule and repeat social media content