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

105 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
  • Software and apps
    Builds browser extensions that fix common site annoyances. Revenue comes from them, helped by search-friendly names and store reviews.
    Under $100Hands-offOnline
    Hacker News, 2024
  • Software and apps
    A minimalist Android launcher distributed free, with a paid pro version.
    Online
    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
  • Content and media
    Publishes personal notes from nonfiction books on a site and earns some money from it.
    Online
    Hacker News, 2024
  • Software and apps
    Built a compression tool that was slow to compress but fast to decompress and licensed it to big software vendors who shipped floppy disks.
    Hands-off
    Hacker News, 2022
  • Software and apps
    Wrote embedded software and earned a royalty on every device shipped for many years.
    Hands-offOnline
    Hacker News, 2022
  • Software and apps
    Builds small apps and games for niche audiences and earns by adding paid features and selling ad space.
    Online
    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
  • Content and media
    Built a site comparing glasses retailers that earns affiliate commissions.
    Under $100Hands-offOnline
    Hacker News, 2021
  • Software and apps
    A paid Mac App Store app that grew out of a personal need for a Safari extension that refreshes tabs automatically.
    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
  • Digital products
    Built a level design package and sells it on the Unity Asset Store, relying on organic discovery.
    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
  • Software and apps
    Collects small monthly support on Patreon for a niche open source game.
    Under $100Online
    Hacker News, 2019
  • Digital products
    Sells a boutique Jekyll theme aimed at software people and academics, with a free base version and a paid version.
    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
  • 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
    Writes and sells books about programming, currently covering Angular and related tools, with little promotion.
    Hands-offOnline
    Hacker News, 2019
  • Digital products
    Wrote introductory programming tutorials and sells them as ebooks on Leanpub.
    Under $100Hands-offOnline
    Hacker News, 2019
  • Digital products
    Created sticker sets for a popular messaging app and earned from their sales.
    Under $100Online
    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
  • Software and apps
    Built a stock trading model for personal use, then published it on a platform where subscribers pay to follow it. Subscribers take responsibility for any trades.
    Hands-offOnline
    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
  • 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
  • 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
  • Digital products
    Designed responsive device mockups and sells them on a graphics marketplace. Sales were strong early on and have tapered off since.
    Hands-offOnline
    Hacker News, 2016
  • Physical products
    Designed a printed upgrade for a worn part in a popular coffee grinder and sells it through a print-on-demand marketplace. Traffic comes from a repair guide on a fix-it site.
    Hands-offOnline
    Hacker News, 2016
  • Content and media
    Wrote a blog about the process of getting a professional engineering licence, which draws search traffic. Earns from ads and affiliate referrals to a seller of exam prep materials.
    Under $100Hands-offOnline
    Hacker News, 2016
  • Digital products
    Wrote and published an e-book on Amazon about saving money so you can work less and pursue goals.
    Under $100Hands-offOnline
    Hacker News, 2016
  • Digital products
    Wrote an ebook aimed at bootcamp graduates looking for their first developer job. It sells directly and through partnerships with a couple of online bootcamps.
    Under $100Hands-offOnline
    Hacker News, 2016
  • Physical products
    Uploaded humorous fan designs to a print-on-demand merchandise site and earns small royalties when items sell.
    Under $100Hands-offOnline
    Hacker News, 2016
  • Content and media
    A small project built for fun that earns a little from display ads and has grown slowly.
    Under $100Hands-offOnline
    Hacker News, 2016
  • Content and media
    Wrote a how-to guide for bypassing an ISP's required modem and router, and recommends a tested router through an Amazon affiliate link. Costs almost nothing to host.
    Hands-offOnline
    Hacker News, 2016