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

110 ideas, page 1 of 3

  • Services and freelancing
    The operator gathers one client's documents, structures them, and loads them into a custom GPT or Claude project so a specific audience can ask it questions instead of the owner. The example was a business broker whose buyers queried the assistant about a listing.
    Under $100Hands-offOnline
    Corey Ganim (YouTube), 2026
  • Services and freelancing
    The operator replaces a repeated manual process with an automation built on off-the-shelf tools such as Zapier, Make or Asana, usually after a short diagnostic. It is charged as a one-off project, with a walkthrough video and a how-to-fix document handed over.
    Online
    Corey Ganim (YouTube), 2026
  • Digital products
    Made a course on spreadsheet functions and formulas hosted on a small course platform, earning a commission share.
    Hands-offOnline
    Hacker News, 2024
  • Digital products
    A template for a note-taking app with a user guide and video course based on the owner's personal system, sold to customers.
    Hands-offOnline
    Hacker News, 2024
  • Digital products
    Created an online course teaching DevOps to small companies and self-hosters, which keeps selling even against bigger instructors.
    Hands-offOnline
    Hacker News, 2024
  • Physical products
    Worked with a factory to make grounded power adapters that stop case buzzing, sold on Amazon.
    Hands-offOnline
    Hacker News, 2024
  • Content and media
    Publishes personal notes from nonfiction books on a site and earns some money from it.
    Online
    Hacker News, 2024
  • Digital products
    Wrote and sells a technical book on deployment that shows the steps without higher-level tools.
    Hands-offOnline
    Hacker News, 2022
  • Physical products
    Put cartoon T-shirt designs about software error messages on craft sites.
    Under $100Hands-offOnline
    Hacker News, 2022
  • Digital products
    Sells a curated list of places to promote side projects, for makers wanting traffic, directly through Gumroad.
    Under $100Hands-offOnline
    Hacker News, 2021
  • Services and freelancing
    Sells commissioned art, licenses existing work from a large catalog, and puts designs on print-on-demand sites for low-effort extra income.
    Online
    Hacker News, 2021
  • Digital products
    Creates and sells courses on Udemy.
    Hands-offOnline
    Hacker News, 2021
  • Physical products
    Started a niche menswear business alongside a full-time job. It now runs mostly on its own at small scale.
    Hands-offOnline
    Hacker News, 2021
  • Physical products
    Earns twice-yearly royalties from a published book and small licensing deals for translations in other countries.
    Hands-offOnline
    Hacker News, 2019
  • Digital products
    Compiles articles and tips from a newsletter into ebooks sold on Leanpub and Amazon.
    Online
    Hacker News, 2019
  • Content and media
    A long-running blog on frontend topics that earns from ads and search visitors with only occasional new posts.
    Hands-offOnline
    Hacker News, 2019
  • Content and media
    Moved all past writing behind Medium's paywall and removed calls to action to qualify for distribution. Earns a monthly share from reader time.
    Under $100Hands-offOnline
    Hacker News, 2019
  • Physical products
    Wrote a regular expressions pocket reference for a technical publisher, earning ongoing royalties.
    Hands-offOnline
    Hacker News, 2019
  • Physical products
    Runs a hobby business selling maps made in a historic style.
    Online
    Hacker News, 2019
  • Digital products
    Sells a Ruby book on a self-publishing platform, first in the owner's native language and now being translated to English.
    Under $100Hands-offOnline
    Hacker News, 2019
  • Digital products
    Wrote introductory programming tutorials and sells them as ebooks on Leanpub.
    Under $100Hands-offOnline
    Hacker News, 2019
  • Physical products
    Designed a 3D printed upgrade for a worn part in certain coffee grinders and sells it through a print-on-demand storefront. Traffic comes from repair guides.
    Hands-offOnline
    Hacker News, 2019
  • Digital products
    Created sticker sets for a popular messaging app and earned from their sales.
    Under $100Online
    Hacker News, 2019
  • Content and media
    Runs a website reviewing music equipment, especially MIDI keyboards, and earns commissions through Amazon affiliate links.
    Hands-offOnline
    Hacker News, 2019
  • Physical products
    Designs t-shirts with jokes for machine learning and data science fans and sells them through a print-on-demand storefront.
    Under $100Hands-offOnline
    Hacker News, 2019
  • Digital products
    Sells a harmonica instruction book and science fiction short story collections on Amazon, and also sells stories to magazines.
    Under $100Hands-offOnline
    Hacker News, 2019
  • Digital products
    Writes travel and lifestyle books and sells them as ebooks and print on demand on Amazon and Apple. Little ongoing work after publishing.
    Hands-offOnline
    Hacker News, 2019
  • Content and media
    A niche blog about getting a professional engineering license, carrying affiliate links to a prep package seller. Earns passively from affiliate commissions.
    Hands-offOnline
    Hacker News, 2019
  • Content and media
    A video published years ago that YouTube keeps recommending, paying out ad revenue with no promotion by the owner.
    Hands-offOnline
    Hacker News, 2019
  • Physical products
    Runs an online clothing store where ordering and fulfillment are automated. Sells meme shirts and promotes through social media only.
    Hands-offOnline
    Hacker News, 2019
  • Physical products
    Designs and sells sketchpads for mobile and browser wireframes through a Shopify store, reordering inventory in larger batches as it sells out.
    $100 to $1kOnline
    Hacker News, 2018
  • Content and media
    An information site about a specific skin condition that earns from display ads and Amazon affiliate links and is mostly left on autopilot.
    Hands-offOnline
    Hacker News, 2018
  • Rentals and assets
    Owns apartments rented to students and managed entirely by an agency that finds tenants and handles upkeep, paying a fixed guaranteed income.
    Over $10kHands-off
    Hacker News, 2018
  • Digital products
    Translates well-regarded public domain works into English and sells them as ebooks. Finding niche topics is the key.
    Under $100Hands-offOnline
    Hacker News, 2018
  • Digital products
    Wrote and self-published an e-book about CSS that has kept selling a year after launch.
    Hands-offOnline
    Hacker News, 2018
  • Digital products
    Wrote an ebook on starting and growing a subscription box business, drawn from running one. Sold through Gumroad, Amazon and iBooks, and still sells a little each month.
    Under $100Hands-offOnline
    Hacker News, 2018
  • Digital products
    A small shop selling pre-production, storyboard and film treatment templates through an online marketplace.
    Under $100Hands-offOnline
    Hacker News, 2018
  • Content and media
    A football tipping website built on WordPress that earns from paid memberships and sponsored posts.
    Hands-offOnline
    Hacker News, 2018
  • Digital products
    Sells online courses on algorithmic trading through its own site and Udemy. Maintenance is mostly answering student emails.
    Online
    Hacker News, 2018
  • Digital products
    Created video courses on Udemy that keep earning money after the initial work.
    Hands-offOnline
    Hacker News, 2018
  • Content and media
    A blog about earning a professional engineering license in a niche with little coverage. Income comes from an affiliate deal with a company selling licensing prep packages.
    Hands-offOnline
    Hacker News, 2018
  • Digital products
    Wrote and self-published a book about a game framework. Earns a small monthly income from sales.
    Hands-offOnline
    Hacker News, 2018
  • Digital products
    Writing and self-publishing a tutorial book on the Angular framework.
    Hands-offOnline
    Hacker News, 2018
  • Content and media
    A personal technology blog that earns small amounts from on-page advertising.
    $100 to $1kOnline
    Hacker News, 2018
  • Digital products
    Produced a video course and a book about the Flask framework. Earns ongoing royalties from sales.
    Hands-offOnline
    Hacker News, 2018
  • Content and media
    Runs a blog about watch straps featuring photography from brands and custom leather makers plus interviews. Income comes from affiliate links.
    Online
    Hacker News, 2018
  • Physical products
    Creates sports-themed apparel designs sold through a print-on-demand marketplace, starting with a niche. Fulfillment times and prices have been the main obstacle.
    Under $100Hands-offOnline
    Hacker News, 2017
  • Rentals and assets
    Bought a VR headset and set up a site where people could rent it. Ranked well on Google for rental searches, then shut it down.
    Hacker News, 2016