Software and apps side hustle ideas
A web app, SaaS, mobile app, browser extension, bot or API that people pay for or that earns from ads.
91 ideas, page 1 of 2
- Software and appsA consumer app that teaches languages through music and singing. The founder tested the idea with viral content before building a simple first version and runs it solo.OnlineStarter Story, 2026
- Software and appsAn indie health and fitness app. The founder credits a repeatable marketing playbook built on paid ads, rather than the specific app, for its growth.$1k to $10kOnlineStarter Story, 2026
- Software and appsA gym app whose founder treats product development like a science experiment, using A/B tests and feature validation to decide what to build.OnlineStarter Story, 2026
- Software and appsA marketing SaaS for indie developers. The founder shaped the product through a very large number of customer calls with the ideal customer.OnlineStarter Story, 2026
- Software and appsA golf app the founder built as a side project while working full time at a big tech company, before deciding whether to go all in on it.Part-timeOnlineStarter Story, 2026
- Software and appsAn AI app for track and field, built by college students who did not know how to code.OnlineStarter Story, 2026
- Software and appsA website for visualizing road trips, earning sales through organic traffic with peaks around holidays.Hands-offOnlineHacker News, 2024
- Software and appsBuilt a tool for brainstorming and converting ideas into diagrams, now earning revenue and working on search traffic.OnlineHacker News, 2024
- Software and appsBuilt a web app to practice speaking languages with an AI, with a free tier and a paid tier.OnlineHacker News, 2024
- Software and appsA browser extension that automatically claims daily login bonuses at online casinos for a monthly subscription.OnlineHacker News, 2024
- Software and appsA content management system that publishes static sites to Cloudflare, earning recurring hosting fees.OnlineHacker News, 2024
- Software and appsAn app for learning Japanese by reading web articles, tracking known vocabulary and kanji, and syncing with flashcards.OnlineHacker News, 2024
- Software and appsA desktop app for managing several Kubernetes clusters at once, built for the owner's own use and then sold as a subscription.OnlineHacker News, 2024
- Software and appsBuilt software for tracking all records about horses, and partners with racing associations to offer it to new owners of retired racehorses.OnlineHacker News, 2024
- Software and appsA tool that converts shared Drive folders into hosted searchable wikis, sold by subscription.OnlineHacker News, 2024
- Software and appsRuns an API service that handles web scraping for developers.OnlineHacker News, 2024
- Software and appsBuilt a booking system after seeing colleagues reserve rooms in a paper book, and sells it as a product.OnlineHacker News, 2022
- Software and appsA product that exports timetable data kept in spreadsheets into Google Calendar.OnlineHacker News, 2022
- Software and appsBuilt an online multiplayer version of a domino-based game, funded by donations after ads did poorly.OnlineHacker News, 2022
- Software and appsBuilt a Mac app for drawing and highlighting on screen during calls and presentations, after needing it personally.OnlineHacker News, 2022
- Software and appsBuilt a single-player chess variant app without ads or in-app purchases, supported mostly by donations.Hands-offOnlineHacker News, 2022
- Software and appsA newsletter platform built as a better alternative to a tool the owner used, with Markdown support and an API aimed at developers. Started as a side project.OnlineHacker News, 2022
- Software and appsA Mac app that creates polished product demo videos from screen recordings using cursor movements and clicks.OnlineHacker News, 2022
- Software and appsSoftware that ties game stats to video footage for coaches, sold to schools in many states.Hands-offOnlineHacker News, 2022
- Software and appsStarted by scraping real estate listings for personal use, then built a scraping API that handles blocking and sold access to paying customers.OnlineHacker News, 2022
- Software and appsA service where users forward unwanted emails and it finds unsubscribe links and fills web forms for them.OnlineHacker News, 2021
- Software and appsA web app for sharing audio clips with timestamped comments, such as a music teacher giving feedback to a student.OnlineHacker News, 2021
- Software and appsBuilt a document editor on a decentralized protocol alongside a day job. Revenue came from grant money from the protocol.OnlineHacker News, 2021
- Software and appsStarted a web hosting company on nights and weekends during grad school, which later became a full-time business.OnlineHacker News, 2021
- Software and appsWrote a Mac app years ago that still makes steady daily sales through the app store without marketing.Hands-offOnlineHacker News, 2020
- Software and appsRuns a web tool that migrates data from files like CSV, JSON and XML into MySQL databases, sold to users who need conversions.OnlineHacker News, 2019
- Software and appsBuilt a web tool for stock technical analysis and offered it white-labeled to companies with distribution, splitting profits with them.Hands-offOnlineHacker News, 2019
- Software and appsA browser extension that tests sites for SEO, speed and security best practices, with free and paid tiers.OnlineHacker News, 2019
- Software and appsBuilt a service with an API that lets businesses send cookies to customers and partners across Europe and the US.OnlineHacker News, 2019
- Software and appsAn open source API that generates embeddable chart images and QR codes. Monetized as a hosted service.Hands-offOnlineHacker News, 2019
- Software and appsAn independent wedding registry site for a local market. Couples pay a one-time activation fee, and Google ads bring in traffic.$1k to $10kHands-offOnlineHacker News, 2019
- Software and appsBuilt a desktop app for managing video libraries and sells licenses. Donates the proceeds to charity.Hands-offOnlineHacker News, 2019
- Software and appsA web tool that lets esports teams create mascot style gaming logos, currently in private beta.OnlineHacker News, 2019
- Software and appsAn outgoing text message API with flat pricing, small packages for hobbyists, and a free daily message. Has an open source version.Hands-offOnlineHacker News, 2019
- Software and appsBuilt a portfolio management tool for cryptocurrency investors and reached subscription revenue quickly with a basic version, while keeping a day job.OnlineHacker News, 2019
- Software and appsA team calendar software product that earns recurring revenue and could grow with more marketing.$1k to $10kOnlineHacker News, 2019
- Software and appsA service for WordPress plugin and theme developers covering updates, git deployment, analytics and load testing, paid by subscription.OnlineHacker News, 2019
- Software and appsStarted a company offering marketing automation to fitness businesses, with recurring revenue and a partnership with a martial arts actor's affiliates.OnlineHacker News, 2019
- Software and appsA platform for learning to write alongside others, built around habits and streaks.A few hours a weekOnlineHacker News, 2019
- Software and appsA few games the owner published that continue to sell a little each year without any input.Hands-offOnlineHacker News, 2019
- Software and appsPublishes in-depth long-term stock analyses for German-speaking investors. Revenue comes from monthly subscriptions.OnlineHacker News, 2019
- Software and appsBuilt a service that keeps software dependencies up to date and supports multiple programming languages. It started as a passive project and became a full-time company.OnlineHacker News, 2018
- Software and appsBuilt a documentation product that earned its first revenue with little maintenance, and is planning a second version.Hands-offOnlineHacker News, 2018