All Side Hustle Ideas
Every idea links to its source

Side hustle ideas from people who actually run them

Real side businesses, described by their owners. Filter by cost, time and how they earn.

Ideas
651
ideas
Publications
14
publications and shows
Categories
8
categories

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  • Files sold online: templates, printables, ebooks, stock photos, fonts, presets, plugins, recorded courses
  • A web app, SaaS, mobile app, browser extension, bot or API that people pay for or that earns from ads
  • A blog, niche website, newsletter, YouTube channel, podcast or social account that earns from ads, affiliate links or sponsors
  • Making, printing or reselling physical goods, online or in person
  • Doing work for clients for a fee: freelance, consulting, done-for-you services, repairs, local services
  • Earning from something you own: renting property, rooms, equipment, vehicles, parking, vending machines, domains
  • A job board, listings site, directory or marketplace that connects buyers and sellers
  • Live tutoring, lessons, workshops, coaching or cohort classes

Matching ideas

About the data

23 ideas

  • Software and apps
    A 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.
    Online
    Starter Story, 2026
  • Software and apps
    An 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 $10kOnline
    Starter Story, 2026
  • Software and apps
    A gym app whose founder treats product development like a science experiment, using A/B tests and feature validation to decide what to build.
    Online
    Starter Story, 2026
  • Software and apps
    A marketing SaaS for indie developers. The founder shaped the product through a very large number of customer calls with the ideal customer.
    Online
    Starter Story, 2026
  • Software and apps
    A 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-timeOnline
    Starter Story, 2026
  • Software and apps
    An AI app for track and field, built by college students who did not know how to code.
    Online
    Starter Story, 2026
  • Software and apps
    An app for learning Japanese by reading web articles, tracking known vocabulary and kanji, and syncing with flashcards.
    Online
    Hacker News, 2024
  • Software and apps
    A desktop app for managing several Kubernetes clusters at once, built for the owner's own use and then sold as a subscription.
    Online
    Hacker News, 2024
  • Software and apps
    Runs an API service that handles web scraping for developers.
    Online
    Hacker News, 2024
  • Software and apps
    A Mac app that creates polished product demo videos from screen recordings using cursor movements and clicks.
    Online
    Hacker News, 2022
  • Software and apps
    Started by scraping real estate listings for personal use, then built a scraping API that handles blocking and sold access to paying customers.
    Online
    Hacker News, 2022
  • Software and apps
    A web app for sharing audio clips with timestamped comments, such as a music teacher giving feedback to a student.
    Online
    Hacker News, 2021
  • Software and apps
    Started a web hosting company on nights and weekends during grad school, which later became a full-time business.
    Online
    Hacker News, 2021
  • Software and apps
    Runs a web tool that migrates data from files like CSV, JSON and XML into MySQL databases, sold to users who need conversions.
    Online
    Hacker News, 2019
  • Software and apps
    A service for WordPress plugin and theme developers covering updates, git deployment, analytics and load testing, paid by subscription.
    Online
    Hacker News, 2019
  • Software and apps
    Started a company offering marketing automation to fitness businesses, with recurring revenue and a partnership with a martial arts actor's affiliates.
    Online
    Hacker News, 2019
  • Software and apps
    Publishes in-depth long-term stock analyses for German-speaking investors. Revenue comes from monthly subscriptions.
    Online
    Hacker News, 2019
  • Software and apps
    A tool that started as a way to create your own Hacker News style site and grew into software for creating, managing and growing online communities.
    Online
    Hacker News, 2016
  • Software and apps
    A jQuery plugin and backend service that adds a shared whiteboard to websites, sold by subscription.
    Online
    Hacker News, 2014
  • Software and apps
    Launched a membership offering premium WordPress plugins with support.
    Online
    Hacker News, 2014
  • Software and apps
    Runs a web service for sending press releases to media, used by customers promoting books and events, with a free tier for anonymous whistleblowers.
    $1k to $10kOnline
    Hacker News, 2014
  • Software and apps
    Building a web service that helps designers create client proposals.
    Online
    Hacker News, 2014
  • Software and apps
    Built a Twitter app that helps users share more links without flooding followers. Offers a free plan and paid monthly plans.
    Online
    Hacker News, 2011