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

154 ideas, page 1 of 4

  • Services and freelancing
    A solo consultant advises teams of five to two hundred people on AI, starting with a paid inbox audit that is credited toward a longer retainer.
    Online
    The Side Hustle Show, 2026
  • Services and freelancing
    Offering AI assessments that show businesses what they can automate, then building the solutions with tools like Claude. The founders started by texting people they knew.
    Under $100Online
    The Koerner Office, 2026
  • Services and freelancing
    Writing and editing articles for companies that pay for human experience and voice, with AI tools used as helpers. Clients come from Upwork and cold outreach.
    Under $100Part-timeOnline
    The Koerner Office, 2026
  • Services and freelancing
    Writing jingles for plumbers, roofers and pest control companies, then running them as skippable YouTube ads in the client's area. AI music and voice tools now replace the studio.
    Online
    The Koerner Office, 2026
  • 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
  • Services and freelancing
    The consultant interviews the owner of one business process, documents how it runs, cuts the wasted steps, and hands over current and future process maps. Automating the redesigned process is sold as a separate follow-on.
    Under $100Part-time
    Corey Ganim (YouTube), 2026
  • Services and freelancing
    The operator organizes a client's promises, decisions, projects and preferences into a set of linked markdown notes that AI tools can read, then keeps it current with ingest and review routines. It is sold as the first engagement because later automations depend on it.
    Under $100Online
    Build With AI, 2026
  • Content and media
    Documents government processes for immigrants and earns commissions on services they need, such as banking, insurance and translations, plus some consulting.
    Hacker News, 2026
  • Services and freelancing
    Writes technical documentation and grant proposals, matching funding sources to institutions.
    Under $100Online
    Hacker News, 2026
  • Content and media
    Posting engaging content, much of it screenshots of other people's posts, to a Facebook page enrolled in Facebook's content monetization program. Facebook shares ad revenue with the creator.
    Under $100A few hours a weekOnline
    Side Hustle Nation, 2025
  • 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
  • Software and apps
    Maintains a UI library for a programming language and gets income through GitHub sponsorships.
    Under $100Online
    Hacker News, 2024
  • Services and freelancing
    Gets income to support open source maintenance from Patreon, private consulting and a company sponsorship.
    Under $100Online
    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
    A privacy-friendly open source analytics tool for apps.
    Online
    Hacker News, 2024
  • Services and freelancing
    A file manager supporting many storage protocols. Earns by building custom plugins such as authentication layers.
    Online
    Hacker News, 2024
  • Digital products
    Writes and self-publishes science fiction romance books on the side.
    Under $100Online
    Hacker News, 2022
  • Digital products
    Found a popular product category on a code marketplace and built a better JavaScript image cropper and uploader to sell there.
    Under $100Online
    Hacker News, 2022
  • 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
  • Content and media
    Runs a newsletter that profiles the home workspaces of makers and creators, earning recurring revenue.
    Online
    Hacker News, 2022
  • Software and apps
    Began by writing Windows apps for a hospital department and grew it into a SaaS tool for building calculator apps.
    Online
    Hacker News, 2022
  • Software and apps
    An open source tool for detecting website changes, with a paid hosted subscription and custom work for companies.
    Online
    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
  • Software and apps
    Built a very basic tool for an industry the owner wanted to be part of, then found a larger opportunity there that now supports them full-time.
    Online
    Hacker News, 2022
  • Physical products
    Put cartoon T-shirt designs about software error messages on craft sites.
    Under $100Hands-offOnline
    Hacker News, 2022
  • Content and media
    Runs a small blog about cash flow that earns a modest monthly income.
    Online
    Hacker News, 2022
  • Digital products
    Self-publishes fiction and is growing a backlist and an email newsletter to increase sales.
    Online
    Hacker News, 2022
  • Digital products
    Wrote helpful articles, collected them into a book sold on Gumroad, and also builds a monitoring SaaS on the side.
    Online
    Hacker News, 2021
  • 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
  • Content and media
    A regular newsletter about web tools that earns income and leads to paid writing work.
    A few hours a weekOnline
    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
  • Services and freelancing
    Translates books about magic, often old ones found along the way, for an editor. It began as a hobby and now pays.
    Under $100Part-time
    Hacker News, 2019