HN_SIDE_FUND_

[DISCOVER_PROFITABLE_SIDE_PROJECTS]
$500+/MO FROM HACKER_NEWS
128 projects found

A dead-simple, one-time, online fax service.

@skwee357
12 comments

Dead Chefs Society

$126k in 2025

A monthly dinner club offering ethnic cuisine with fixed-price menus at various restaurants.

@agotterer
7 comments

IronCalc

Grant from NLne...

A project that makes money from grants rather than customers, currently in development.

@nhatcher
4 comments

An audiobook streaming service focusing on timeless classic works in the public domain.

@jspizziri
3 comments

Interactive demo books for kids and adults, including Computer Engineering for Babies and Simple Machines Made Simple launched on Kickstarter.

@crobertsbmw
17 comments

A Chrome extension that allows one-click importing of web pages into NotebookLM.

Chrome extension
@wonderfuly
3 comments

DedupX

100+ paying use...

A macOS app for quickly finding duplicate and visually similar files, designed for photographers and users with large local storage collections.

macOSincremental hashingperceptual image matchingFinder integration
@technusm1
4 comments

Clues by Sam

Enough to decli...

A daily logic puzzle game where users can purchase additional puzzle packs.

@tikotus
10 comments

DB Pro

$1k MRR

A modern desktop database client for developers focused on fast, local-first workflow.

@upmostly
8 comments

Video Hub App

$300/mo (reliab...

A desktop app that lets users browse, search, tag, and organize videos on local or network drives.

@yboris
3 comments

Filestash

a bit more than...

A file management tool that supports multiple storage protocols and plugins, created in response to a comment about Dropbox and FTP.

@mickael-kerjean
5 comments

Canine

$5k+ / m from s...

A tool that simplifies turning Kubernetes environments into a Heroku-like PaaS for corporate use.

@czhu12
4 comments

An uptime checker for websites with support for APIs, cron jobs, and automated status pages.

React
@rozenmd
1 comments

Logic Trainer

No profits yet,...

An advanced educational tool for learning logic gates through hands-on experience, originally developed as a PCB board for teaching.

PCB designweb designmarketing
@iceboy
0 comments

Little Lantern Shop

over $1000 in t...

An Etsy shop selling digital sewing patterns for decorative felt crafts.

Etsy
@kaesve
4 comments

Dream and Color

Growing about 1...

A service that converts photos into coloring pages for parents and educators using image diffusion models.

Stable Diffusion 1.5
@mkummer
2 comments

Escape Team

$700 on iOS and...

An escape room game app where players solve puzzles in groups, with free initial missions and paid in-app purchases for later missions, featuring a mission editor for user-created content.

@hemmert
1 comments

AliveAI

over $50k/mo

A large uncensored AI image and video generator for adult content.

@dubme1
5 comments

Humadroid

$500/month

AI-Assisted SOC 2 & ISO 27001 compliance for small teams.

AWSGitHub
@mlitwiniuk
3 comments

A newsletter summarizing Hacker News content, maintained for 15 years.

FiveThreeOne

$1000/mo

A weightlifting app for the 5/3/1 program.

@strongpigeon
12 comments

A guitar learning app focused on music theory.

@apizon
0 comments

BudgetSheet

$6k MRR avg. fo...

A service that links bank accounts via Plaid to Google Sheets for tracking transactions and balances with customizable templates, used by individuals and small businesses for personal finance management.

Google SheetsPlaid
@vlucas
2 comments

A public transportation departure board for Switzerland designed for home or business use.

@sschueller
4 comments

A book recommendation app that makes it fun to explore books through what other people loved to read.

A Substack that teaches programmers how to convert advanced math papers into C and Python code.

CPython
@muragekibicho
2 comments

Repth

Licensing reven...

An AI cycling coach that is free for athletes, with the underlying coach logic licensed to human coaches.

AIGPT-3.5

A tool that merges multiple iCal feed URLs into a single feed.

Django
@abe-101
2 comments

Manabi Reader

$500/month

An app for learning Japanese by reading, tracking words and kanji locally, with features like flashcard integration and content curation.

SwiftUIiOSmacOSiCloudoffline-first architecture
@wahnfrieden
0 comments

A YouTube channel teaching Python for Finance with affiliate revenue.

Python
@parttimelarry
2 comments

Cold Call Gym

Not explicitly ...

A platform for practicing cold calls with a bot to improve skills through exposure therapy.

@duckkg5
1 comments

A game released on Steam where players engage in tornado research and rescue activities.

@StackBPoppin
0 comments

TrueCast

600€/month

A platform that provides real-time hard skills knowledge superpowers for tech and non-tech recruiters to better assess candidates, with a bot option for self-conducted interviews.

@Frajedo
0 comments

A tool that scrapes company websites to find unadvertised jobs, providing users with a head start and daily curated job alerts.

komorebi

$500/mo

A tiling window manager software.

@bsnnkv
2 comments

Pixie

$500/month

A platform for employing and tracking children's work to reduce tax burden and fund Roth accounts for families with businesses.

@popupeyecare
3 comments

A browser extension that enhances Twitter usability by providing customizable features and settings.

ChatKeeper

modest but grow...

A command-line tool that syncs ChatGPT history with local Markdown files for local-first access and integration with tools like Obsidian.

@martylamb
1 comments

A board game turned free web app about climate change, originally Kickstarted and now available for play online.

Brezza

400 MRR (droppi...

A fitness readiness app that provides route weather forecasting, go/no-go callouts, AI nutrition/gear lists, and tracks progress using smart watch metrics.

@ferrufino
0 comments

CoPlay

6k MRR

A platform for managing fleets of gaming consoles, users, and subscriptions for pediatric hospitals, functioning as an MDM for Xbox devices and users with managed subscriptions.

@bradyriddle
0 comments

AFI Explorer

Not explicitly ...

An iOS app for referencing Air Force publications with improved mobile UX.

iOS
@willswire
0 comments

pptxmailmerge

some sales

A mail merge tool for PowerPoint that allows users to import data from Excel files for flexible merging into presentations.

@brzezmac
0 comments

A business selling laser-cut decorative maps.

@trubalca
6 comments

An online shop specializing in fountain pens, fountain-pen friendly paper, bottled inks, and related accessories for hobbyists.

@bespoke_engnr
1 comments

PDF Scanner App

approximately t...

A Mac App Store scanning app that has been maintained for nearly 15 years with free updates.

Apple platform development

A standing desk companion app for iOS and Mac that helps users build stamina for standing and stretching while working, particularly beneficial for those with lower back pain.

iOSMac
@dbgrman
0 comments

Saviament

decent source o...

An open-access educational website in Catalan that also sells printable content.

@syrgian
1 comments

Mentorbook

$600/mo

A tool that turns long-form content into structured, personalized courses based on learning preferences.

@tangjinzhou
0 comments

Meetinghouse

$12 per pin, 47...

A platform for Twitter users to place themselves on a map with a bio to find or be found for purposes like friendship, dating, or connecting with new parents.

@simonsarris
3 comments

Tredict

~500-600 Euros ...

A training planning and analytics platform for endurance athletes and coaches, offering features like forecasting, training logs, plans, and integrations with various devices and services.

@Aldipower
1 comments

A keyword research tool that scans posts across social media sites like Bluesky, Mastodon, and Hacker News.

@binsquare
2 comments

A marketplace for buying and selling side projects and businesses.

@postatic
1 comments

A website that tracks the value of LEGO sets and minifigures, allowing users to catalogue and monitor their collections.

@pattle
0 comments

youhere.org

$500/month

An app-based attendance service for teachers, coaches, band directors, and conference organizers to track who showed up.

@tbensky
0 comments

3D printed accessories for the Volkswagen ID. Buzz, including custom models based on owner requests.

3D printing
@Jeremy1026
0 comments

Minichord

$500/month

A pocket music instrument designed by the creator, manufactured and handled by Seeedstudio, with the creator receiving royalties.

@BeniBoy
1 comments

A tool that lets users reshape articles, papers, or videos into formats like mind-maps, summaries, podcasts, or interactive Q&A to aid thinking.

@rriley
1 comments

KiteCourier

Spiky, ranging ...

An end-to-end certified mail platform that simplifies sending legal notices like email.

@hotdogsalesman
3 comments

A single API to get odds data from a number of US Sportsbooks.

@and-not-drew
1 comments

A tool for creating and restyling feature icons to expand an app's icon set.

@davidcann
0 comments

iBuzz

$100/mo

A simple buzzer soundboard app built 15 years ago.

@jclardy
1 comments

Daily Chinese Stories

a few sales eac...

A service that delivers a daily Chinese story tailored to your HSK level and preferred themes.

@gabriel-uribe
1 comments

drawcharts

$500/year

A tool to build good looking hand-drawn style charts.

@topnde
0 comments

AI workshops that make AI accessible to regular people by teaching mental models and communication skills to build products in three hours.

@mergesort
0 comments

A newsletter delivering weekly software engineering conference talks and podcasts to subscribers.

@techtalksweekly
0 comments

Snaption

Not at $500/mo ...

An AI-powered tool that automates the capture, analysis, and organization of screenshots by syncing them to Notion.

Next.js
@callyma
0 comments

An Anki extension that embeds AI, text-to-speech, and image generation to generate example sentences, audio, and explanations for studying in bulk.

AnkiAItext-to-speechimage generation

Formester

$7000/month

A product that started as a side hustle and now generates revenue, focusing on user experience and customer service.

@whitefang
1 comments

A collection of tools generating revenue from courses, apps, community, and books.

@dSebastien
0 comments

Microlandia

$500/month

A brutally honest city builder game.

@phaser
1 comments

A platform for digital asset management, review, and workflow, focusing on image review for automotive configurators.

@ownagefool
0 comments

Two similar projects using regex to parse eBay item titles and descriptions for disk prices and digital film stock.

regex

Compta

$500/year

An accounting app built as a SaaS for small businesses, originally created to replace a Windows Access application.

@petit_robert
0 comments

Multy

400€ MRR

A platform for creating and sharing lists, with around 50k lists and 8k users.

@Etheon
1 comments

An iOS net worth tracker app built by a former accountant turned programmer.

iOS
@jianzong
1 comments

A Chrome extension that dubs YouTube videos into 82+ languages and provides enhanced controls for a better YouTube experience.

AIChrome extension
@gagarwal123
0 comments

A porn website built as a side project to learn hosting, SEO, and monetization, now generating revenue.

NextjstailwindWordpresscustom CMSVPS+1
@meshosh
1 comments

Provides Bluesky native tools and cross-posting tools.

A modern tool for automatically scheduling meetings to align calendars, tailored for groups of developers.

@dsincl12
1 comments

Packetriot

$500/month

An alternative to ngrok for tunneling and reverse proxy services.

@jborak
0 comments

A service offering super low run custom vinyl records with manual processing and automation in development.

@superfamicom
1 comments

mojo

$1150 per month

A GLP-1 tracker app for iOS/Android that connects health data for real-time AI feedback and insights.

@hanamizuki
0 comments

An app that uses your webcam and local AI models to predict sitting posture to prevent neck pain.

@karolcodes
0 comments

Mereth

$500

A service that helps businesses automate their admin work using Google Workspace products with App Script and Typescript.

App ScriptTypescript
@kobiguru
0 comments

Timizer

$1k/month

A timesheet and activity report management app designed to simplify administrative workflows, originally for the French freelancing market.

@terrortib
0 comments

A screener optimized for selling options.

@fullstackchris
0 comments

A censorship resistant VPN for people in China, Iran, and Russia.

@willprice89
4 comments

A REST API for FFmpeg service, now adding MCPs and AI endpoints to simplify command usage.

@moinism
0 comments

TechnicalC

Not specified

A scientific calculator for iOS, iPadOS, and macOS with a one-time payment model.

@jacobp100
0 comments

A long-running website with affiliated projects like omiword.com.

@DamnInteresting
2 comments

An iOS app for organizing and tracking receipts.

iOS
@lhr0909
1 comments

AI Easy Pic

$3k per month

An AI-powered tool for easy photo editing.

@mesmertech
1 comments

Whenish

beer money

An iMessage extension app that helps schedule events and find availability dates within group chats without leaving the conversation.

@devgoth
0 comments

A front-end SaaS application for analyzing securities and events, aiming to replace platforms like iHub and StockTwits with a bot-free experience for professional money managers.

@GravityAnalyt1
1 comments

Simple yet powerful tools for running small or self-managed HOAs.

@TCSoft
2 comments

VideoToBe.com

$200 to $600 pe...

A service for transcribing and chatting with audio/video content, offering pay-per-use and subscription options for features like AI summaries and insights.

@meerab
0 comments

A tool for importing and categorizing bank statement transactions to help users understand household spending.

@appsoftware
1 comments

Jamp Audio

$300/month

Audio plugins for iOS.

@janm31415
0 comments

A Chrome extension that blocks porn sites to help people with porn addiction.

@trowa159
0 comments

A catalog of side projects for research and record-keeping purposes.

@garnett
0 comments

SFX Engine

$1.2k MRR

A sound effects engine for generating audio.

@rogutkuba
0 comments

n0c0de.com

$500/mo to $5K/...

A no-code platform for experienced operators to develop apps and start their own business.

@santa_boy
0 comments

A daily movie quote guessing game that uses audio quotes.

A code review UI on GitHub for ex-Googlers who miss Critique.

@habosa
0 comments

PodLP

over $500/month...

A podcast app designed for flip phones.

You Don't Need JS

$300-500/month

A book about modern HTML and CSS to create websites with minimal JavaScript.

@Theoleff
0 comments

Find Boxes

$300 a month

A project and inventory management tool for audio visual companies.

@breakingstuff
1 comments

API-based tool that converts EAN/GTIN barcodes to pricing information, product specs, content, or images.

@decide1000
0 comments

A recipe app with subscription-based revenue.

@AwkwardPanda
1 comments

Half Lemons

Freemium with l...

An iOS app that finds recipes using your ingredients.

iOS
@FarProfessor
0 comments

A tool to generate instructions for different AIs.

@jawuilp
0 comments

bewCloud

over $500/month

A simpler alternative to Nextcloud for users who don't need extensive customization options.

@BrunoBernardino
0 comments

A SaaS platform for photographers tailored to the Latin American market.

@ebobby
1 comments

abot.app

$2k/mo

A bot application platform

@pawurb
0 comments

An AI-powered bookmark manager that resurfaces saved content.

@aria-sfl
0 comments

A stock events application created around 2019.

@davidkuennen
0 comments

A platform for tracking stock events.

@davidkuennen
0 comments

Olly.bot

$500/mo

An AI assistant integrated into iMessage group chats.

@mmoustafa
1 comments

A tool for curating datasets to capture maximum signal for model training.

@noelfranthomas
0 comments

A service that provides a live URL for privacy policies quickly, typically in under a minute, for use in forms.

@pewpawpew
0 comments

Smitten

Paywall impleme...

An erotic story generator for couples to spice things up, created as a side project.

@alessandra140
0 comments

Happybara.io

Customers start...

A portfolio of Slack apps including Nightowl for multi-DM broadcasting and Channitor for channel management and auto-archiving.

@i-dont-remember
1 comments

A website where users can buy canvas space for private parties to settle scores, generating revenue through ad buys and coffee purchases.

@bortbortbort
0 comments

Photographic Prints

Not specified

A side project selling photographic prints with detailed income and cost breakdowns.

Trendyzip

$5 per basic re...

Provides home sale trends to help buyers make informed decisions.

@tndibona
0 comments

Software for making small art books with the goal of creating physical books.

@ablanton
1 comments

An HTTP request replay and comparison tool in Go for replaying real traffic, comparing environments, detecting broken endpoints, generating reports, and analyzing latency.

Go
@kx0101
1 comments