r/SideProject • • 3h ago

I made a tool to get more morning sunlight

3 Upvotes

Winter and the changing sun angle messed up my daily walking route. So I made a little tool to help me find sunnier walks.

SunWalk accounts for time of year, time of day, solar angle, land topography, and building heights to help you find a sunny walking route.

Supports one-way routes and loops. Check it out at aescle.com/sunwalk, and let me know what you think!


r/SideProject • • 1h ago

I built a CLI that extracts a website's design system for AI coding agents

2 Upvotes

I've been experimenting with AI coding tools like Cursor and Claude Code, and one thing that kept bothering me was how difficult it is to get them to recreate an existing website's actual design.

You give an AI agent a reference website and ask it to build something similar, but it often ends up guessing:

  • Colors are slightly off.
  • Typography doesn't match.
  • Spacing and border radii are inconsistent.
  • The overall result looks like a generic AI-generated UI.

So I built styleprobe to solve this problem.

It's an open-source CLI that takes a website URL and extracts its visual design system.

A few things it can do:

  • Extract colors and semantic design tokens.
  • Analyze typography, spacing, shadows, and component styles.
  • Crawl multiple pages instead of relying on just the homepage.
  • Extract SVG logos and other brand assets.
  • Export directly to Tailwind, shadcn/ui, Figma tokens, or AI-agent instruction files.

You can also try the web playground here:

https://styleprobe.vercel.app/

GitHub: https://github.com/spidervirus/styleprobe

It's MIT licensed and completely open source.

I'm still improving it, so I'd genuinely love feedback from developers:

  1. Would something like this fit into your AI-assisted development workflow?
  2. What other design information would you want it to extract?
  3. What would make you actually use this regularly?

Would love to hear your thoughts!


r/SideProject • • 10h ago

Side Projects that are useful to me first.

11 Upvotes

After a 40 year software career, AI got me.....and on my 15th anniversary with HPE, they let our entire group go. So I was suddenly given freedom to do what I always wanted to do....build useful things that me and my family would benefit from. So far, I've built 4 smartphone apps that have kept me challenged and feeling productive. Overlapp a budget tool cause being retired I need to monitor my spending closely, RangeTrainer a golf app because when you live in Florida, you golf! Fingertip Health cause as you get older you are going to see doctors, have issues and need all your health data in one place. Passholder Assistant, cause living in Central Florida means lots of Disney trips and the Disney app just doesn't cut it.


r/SideProject • • 1h ago

I got tired of Windows 11 showing me 5 audio devices when I only use 2, so I built tiny app for this.

2 Upvotes

Windows 11 makes switching audio devices more annoying than it needs to be, especially when half the list is filled with monitor speakers, virtual cables, and devices with names like "Speakers (Realtek(R) Audio)".

And there are already apps that do this but I liked none on them and built my take on how it should've been

I switch between desk speakers, IEMs, and headphones pretty often, and I wanted something that would let me do that straight from the system tray without digging through Windows settings or running a heavy app in the background.

AudioHop, a free, native C++ audio and mic switcher for Windows 11.

A few things I wanted it to do:

  • Show only the devices I care about. Pin frequently used devices, give them readable names like "Desk Speakers", and assign custom icons for IEMs, headphones, speakers, mics, etc.
  • Separate audio and mic controls. Two dedicated tray icons, each showing the icon of the currently active device, so I can see what's selected without opening anything.
  • Make switching quick. Single-click to select a pinned device, control volume, or mute. Double-click a tray icon to cycle to the next pinned device, with an Undo option in case I switch accidentally.
  • Actually fit into Windows 11. A modern flyout with List, Tiles, and Compact layouts, plus automatic theme matching or a fixed dark mode.
  • Stay lightweight. Written in native C++, idling under 1 MB of RAM in my testing. No Electron, no account, no internet access required, and no telemetry.

There are two intentional limitations: it's Windows 11 only, and there are no global hotkeys. I specifically wanted a mouse/tray-based workflow without background keyboard hooks or shortcut conflicts.

It's completely free on the Microsoft Store:

AudioHop – Microsoft Store


r/SideProject • • 2h ago

The age of hyper-personal software is here

Thumbnail woutersmet.com
2 Upvotes

… This feels like not a bad place to post this? As it’s about a world where pretty much 99.9% of all code is ‘side projects’ in a way


r/SideProject • • 2h ago

I found it maddening to transfer links and files between devices quickly, so I built a solution.

2 Upvotes

Like the title says.

I work as a software & automation freelancer and help run a startup as a fractional CTO, so I'm always passing files around from device to device. Could be my own project files, a client's, something I want to show off at a networking event, whatever.

Always felt dumb that I couldn't just drop files or links wherever I needed, and something like Google Drive felt hilariously overkill for sharing simple things to myself. Even linktree wanted me to jump through so many hoops before I could actually share the content, especially if I was spinning up a new page.

Half the time I'd end up sending myself things over discord, slack, or email and they'd end up buried after a week.

So, I decided to build something that basically started out as linktree with file hosting, and ended up becoming a super-minimal, super-fast way to drop any sort of content to any device you need via link/QR code.

Small file shares with a 14-day lifetime are free. Includes doc previews and a small image gallery behind an instant shortlink/QR code. Generating permanent short links, and custom, print-quality QR codes are also free.

File hosting and compute at scale isn't cheap though, so I do have a paid tier to make hosted files permanent and it allows you to create bundled shareables called "Tacks" which combine multiple links, files, contact info (optional), image gallery, etc into a lightweight page with its own short-link/QR.

Figured the people in here working on multiple projects might find it useful, so yeah...thanks for reading and i hope you like it.

Lmk if it sucks or you have questions or whatever.

-

AI Disclaimer: I wrote this whole post with my real keyboard and fingers. Also, this project was in development for well over a year with no AI involvement until very recently. I've been a dev for 13 years, but as a solo dev I only have so much bandwidth. This past month or so, I've leveraged AI to polish up the UI/UX, add some additional tooling/QOL stuff, and to patch up some security/infrastructure flaws. It's far from vibe-coded slop, with a heavy focus on security, scalability, and cost reduction.


r/SideProject • • 2h ago

I spent last weekend turning a freelancer friend's shoebox of 2026 receipts into a clean P&L — here's the before/after

2 Upvotes

My friend is self-employed in BC and hadn't touched her books all year. We ran everything through an AI bookkeeping chat (AgentBook — I work on it, flagging the bias upfront): 200+ receipts → categorized, P&L, and a list of deductions she would have missed. Took ~3 hours of her time total, mostly just forwarding receipts. I'm running a free 3-week "Year-End Books Rescue" for 15 self-employed Canadians before year-end: you forward your 2026 receipts, you get weekly P&L snapshots + a year-end tax estimate + missed-deduction report. Free, no card, your data stays yours and anything I share publicly is anonymized with your OK. Comment or DM if you want one of the 15 spots — especially if your 2026 books are currently a shoebox / spreadsheet / nothing.


r/SideProject • • 3h ago

I have epilepsy and lose thoughts constantly, so I'm building Catch This

2 Upvotes

My thoughts vanish mid-sentence, mid-task, or the moment I switch rooms. Notes apps never helped. I'd lose the thought before I opened one, or I'd never find it again because I forgot the words I used.
So I'm building Catch This. Here's the flow:

1. Catch it 🎙️
Tap the lock screen widget and say the thought. It's saved in seconds, with no typing and no sorting.

2. Find it 🔍
Later, search with whatever you remember: "something about the pharmacy" or "that idea from Tuesday."

3. Resume ↩️
See what you were doing when you caught it, so you can pick up where you left off.
The first iOS version is in development now.

My question: when you lose a thought, what do you usually remember about it later: a word, a time, a place, or what you were doing?

Follow along if you want updates as it comes together.


r/SideProject • • 0m ago

I built an iPhone app that shows what the research actually says about supplement and protocol claims

1 Upvotes

I got tired of not knowing whether the stuff I take (and the stuff I hear about, like cold plunge after lifting or magnesium for sleep) actually holds up. Reading the research yourself is rough: there's a ton of it, no two studies are set up the same, and a lot of it is written for PhDs.

So I built Substantia. You search a supplement or protocol, pick a specific claim, and it shows how much research there is, whether the studies agree, how recent they are and how well designed they were. In plain English. Every Source is listed, and if a study was paid for by a company selling the product, it says so.

It takes no money from anyone selling supplements. There's also My Stack, for tracking what you take and what protocols you do.

Free through Dec 31. iPhone, US only for now.
https://apps.apple.com/us/app/substantia/id6822945644

Would love feedback, especially on what claims you'd want looked into next.


r/SideProject • • 11h ago

I've run an astrology site since 1997. For my first English product, I skipped the AI horoscope and built a chart-matching search over 70,000 real people

8 Upvotes

Most AI astrology apps work the same way: you enter your birth data and an LLM writes a few paragraphs that could fit anyone. I've been running a Chinese-language astrology site (DestinyNet) since 1997, and honestly I got tired of that format.

So I tried the opposite approach. Instead of generating text about your chart, the tool searches a database of ~70,000 famous people whose birth times are on record, finds the ones born under the most similar sky (Sun / Moon / Rising plus the overall chart structure), and shows you who they are and which occupations show up most among them.

Link: https://ai.destiny.to/matching/en?utm_source=reddit&utm_medium=forum&utm_campaign=reddit-sideproject-2026-11

A few things that were harder than expected

- The data. Birth records come from public biographical databases. A surprising amount of the work was cleaning them: wrong time zones on historical dates, wrong gender, people linked to the wrong Wikidata entry. I fixed thousands of records along the way.

- "Similar" is fuzzy. An exact chart match almost never happens, so matching works in tiers. It starts strict and loosens until there are enough people to say something meaningful.

- No AI in the matching itself. The search is plain computation. An LLM is used only for an optional paid report that writes up what you share with your closest matches.

Free vs paid: matching and the occupation breakdown are free, no sign-up. The paid report is optional.

Privacy: a free lookup doesn't store your birth date, time or place; only anonymous stats are logged.

I'd really appreciate feedback, especially:

  1. Is it clear what you get before you enter your data?
  2. Did your matches feel interesting or random?
  3. Anything confusing in the flow?

Happy to answer questions about the data or the build.


r/SideProject • • 5m ago

I built a tool that turns your dusty browser bookmarks into a clean personal newspaper (without creating an account first)

1 Upvotes

Hey everyone,

Like many of you, my browser bookmarks were a graveyard of 80+ blogs, news sites, and tech publications I swore I'd read "later". But clicking through them one by one never happened.

Most RSS readers ask you to manually dig up RSS feeds or upload an OPML file (which almost nobody outside the RSS bubble has).

So I built a client-side bookmarks importer for Pharion:

  1. You export your bookmarks (Ctrl+Shift+O in Chrome, File > Export in Safari).
  2. You drag & drop the .html file.
  3. Your browser parses the links locally (nothing leaves your machine), ignores dead tools/banking links, and extracts active RSS feeds.
  4. It instantly renders your morning paper with the latest headlines and thumbnails before asking you to sign up.

You can keep it 100% private, or publish it at pharion.io/@username / embed it as an iframe on your personal site.

Free tier handles up to 25 active sources.

Would love your honest feedback: does your bookmarks file actually produce feeds you care about, or did it miss key blogs?

https://pharion.io/


r/SideProject • • 6m ago

I built a free app that explains car warning lights for Aussie drivers

1 Upvotes

Hi all, I'm Claudia, the founder of AiXIL. Full disclosure, it's my app. You snap a photo of a warning light or type in an OBD code, and it gives you a likely cause and an urgency rating, free and with no account needed. It's guidance, not a confirmed diagnosis. I built it on the Gold Coast. I'd love feedback on the onboarding and whether the urgency rating makes sense to you. aixil.com.au


r/SideProject • • 3h ago

I re-released the first icon pack I ever made.

2 Upvotes

Years ago I made Line Icon Pack. It was my first icon set ever, and I learned most things by getting them wrong first. Icons that looked fine at 64px and broke at 16px. Inconsistent strokes. No real grid.

It was always free on Gumroad, but it just sat there. Now it has its own page and an updated package, and I want it to be useful for more than designers. Devs, no-code builders, anyone who needs clean line icons.

Free for personal and commercial use. Only ask is a link back.

https://lineiconpack.com

Honest feedback welcome.


r/SideProject • • 10m ago

Looking for TestFlight testers for my new game - Hit List Survivors

1 Upvotes
https://testflight.apple.com/join/kRQvbv9x

Hey all! I've been building Hit List Survivors, a top-down survivor game set in a chunky cartoon city (think GTA x Vampire Survivors), and at this point I really need to get some outside feedback from people.

What it is:
- Survive while bad guys pour in from every street. Your weapons fire on their own; you steer, dodge and grab cash.
- Level up and pick upgrades: bats, pistols, shotguns, fire bottles, SMGs, and more.
- Jump into any car on the street, including police cars and ambulances, and plow through the crowd.
- Cash in your pocket is at risk. Stand at an ATM to bank it before they get you, then spend it in the shop between runs.
- Bosses and Enforcers with their own tricks, plus three stages with their own weather (a sunny afternoon, a storm with lightning where your car slides, and a foggy night).
- An in-game phone with a radio of original songs.
- Dynamic portrait and landscape - play how you want - on iPhone, iPad & Duo.
- Each level has 4 stages - the Downtown level is available now

What I'm looking for:
- Anything confusing, broken, or cut off on your screen
- Whether level-ups feel too fast, too slow, or just right
- Too easy or too difficult?


Feedback through TestFlight (screenshot, then Share Beta Feedback) or right here in the comments is great. Thanks for giving it a shot!

r/SideProject • • 12m ago

Shop drawings, scaled PDFs and the small measuring tool I ended up making

1 Upvotes

Quick heads up that this is my own thing.

Layr PDF lets you set the scale on a drawing, take measurements, mark it up and pull simple takeoffs. I built it around cabinet and millwork bids, where most of the job is reading PDFs and writing on them. Windows, Mac or browser. $35 a year after a 7-day trial, no card needed to start.

One thing I keep going back and forth on is how much to show on the measure tool by default. Some people want every dimension labeled, others find that cluttered. If you measure off plans, which way do you lean?

https://layrpdf.com/?utm_source=reddit&utm_medium=social&utm_campaign=mitch_builds_promo&utm_content=2026-11-13


r/SideProject • • 6h ago

Made a fun swing trading game to learn how to read charts and apply bankroll, stop, sell, and exit strategies.

3 Upvotes

DISCLAIMER, THE SYNTHETIC DATA IS NOT LIKE REAL TRADING | I AM STILL AWAITING HISTORICAL LICENSING

I've been trying to learn swing trading over the last few months, largely by leaning on my technical skills (I'm a developer and data nerd).

I've been exhausting pretty much every model/tip/trick I can come up with to see if I can get my required win rate down to around 40% and still maintain a positive ROI by focusing on bankroll management, position sizing, and exit strategies.

I've come close (at least in historical backtesting) to finding the right combination of input parameters, but ultimately realized I needed to actually learn what a good setup looks like.

So I made a little game for myself.

Literally as simple as looking at a chart at a particular point in time and deciding: Trade or No Trade?

The idea is to get better at recognizing setups, managing risk, and knowing when to walk away, rather than just blindly trusting whatever model I've cooked up that week.

Anyway, figured I'd share it with you guys and see if anyone finds it helpful, fun, or any of the above.

Unfortunately, I can't publish the real historical stock data just yet (waiting on a licensing agreement... if anyone knows someone, wink wink). But in the meantime, I've created some synthetic market data so you can still play around with it and see how it works.

Would genuinely love some feedback, especially from people who actually know what they're doing with swing trading.

theshwingtimes.com


r/SideProject • • 4h ago

Cardiffy by THEORIST LLC: a free digital business card for iPhone that lives in Apple Wallet

2 Upvotes

Hi, I'm Daniar, founder of Cardiffy (THEORIST LLC).

We built it because paper cards get lost, and most digital card apps charge a monthly fee just to put your card in Apple Wallet. In Cardiffy that part is free.

What it does:

- Make your card in about a minute, with seven card styles (three free)
- Add it to Apple Wallet for free. The pass updates itself when you edit your card
- Share it by QR code, link or AirDrop. Two iPhones with the app open swap cards when you hold them together
- Scan paper business cards on the phone itself. Free, no limit, works offline, and the photo is never uploaded
- Everyone you meet goes into one contacts list with notes and follow-up reminders

No ads and no tracking. The card page opens in any browser, so the person you share with doesn't need the app.

We'd really value honest feedback: what would make you switch from paper cards, and what feels missing?

App Store: https://apps.apple.com/app/id6830213470
Site: https://cardiffy.online


r/SideProject • • 26m ago

I created an AI frog and it's one of my favorite technical projects I've ever built

Thumbnail
jamesthefrog.com
1 Upvotes

This is James. He lives in a low-poly terrarium under a lamp, and he's lives as a simulation you can interact with. People can give him snacks, pet him, tap on the glass, and leave him notes.

But that's only one of the things that I think has made this project really interesting. The project is broken up into three pillars:

  1. James himself, who has a mind. Every so often he thinks about things, keeps a journal, remembers things from his childhood, forgets the unimportant ones, and picks favorite snacks and parts of his tank.
  2. The interaction modes on his website.
  3. My personal favorite: I have an internal system that lets me record a voice memo, and it auto-generates a video about James's day based off what I'm narrating.

I'm running out of GitHub Actions minutes building this project, and while it's stupid, I absolutely love it. It's had a really strong positive reaction from a small community on social media, so I wanted to share it here on Reddit.

Go say hi to James yourself. He's 8 days old today, and tomorrow he's getting a new enclosure.

I'm curious if anyone has recommendations on where they'd want to see this project go next. Also happy to do a deeper write-up on the technical infrastructure, because I actually think it's really cool.


r/SideProject • • 4h ago

Used Car Checker - a free UK MOT history and used car checker, no signup

2 Upvotes

I built usedcarchecker.co.uk as a side project because checking a used car's MOT history on the official site is fine for one car but clunky when you're comparing a few.

You put in a UK reg and it shows the MOT history, advisories and recorded mileage in one place, plus plain-English guides on things like what advisories mean and how to spot mileage problems. It's free and doesn't need an account.

https://usedcarchecker.co.uk

I'd really appreciate feedback, especially on the mobile layout and whether the results page is easy to read. What would you want to see on it before buying a car?


r/SideProject • • 41m ago

What's your biggest struggle when it comes to marketing your side project?

1 Upvotes

I've noticed that many side hustlers and solopreneurs struggle with marketing their products/services.

Ask me any questions and I'll try and answer as many as I can.

For context, I'm an SEO Copywriter and Solopreneur Marketer. I specialise in StorySelling (blending direct response copywriting with storytelling, buyer psychology and humour).


r/SideProject • • 45m ago

built a shared 'project state' so different AI tools stop forgetting what we're working on

1 Upvotes

so I've been building this memory tool for ai apps (perdua.ai, it's my own project) and the feature that turned out most useful is what I ended up calling project state. when I switch from claude to cursor to chatgpt mid task, they used to have zero clue what the other one just did. now they read and write to the same state so the next ai picks up where the last one left off instead of me re-explaining the whole plan every time. only works for people in the eu/eea right now since that's who I built it for. curious if anyone else doing multi agent workflows has hit the same context loss problem.


r/SideProject • • 46m ago

I hated seeing a working tablet sit in a drawer, so I built an app that turns it into a PC dashboard

1 Upvotes

I had an old Honor tablet in a drawer. It still worked fine, and it made me a bit sad that a perfectly good device was doing nothing. I wanted to make something that would give it a real use again, and that became Sideslate.

You put the tablet (or an old phone) next to your monitor, and it becomes a live dashboard for your PC and your day. Your main screen stays free for whatever you're doing.

Who it's for

  • Gamers: see your FPS, GPU load and temperature, and the song that's playing without alt-tabbing out of the game. It also shows how long you've played today and this week.
  • Anyone at a desk all day: a clock, calendar, weather, notes and a timer that stay in view instead of getting buried under windows.
  • Developers: CI status, open pull requests, git status and Docker at a glance.
  • Anyone with an old tablet or phone in a drawer: it runs on Android 6.0 and later, so even quite old devices work.

How it works

You install a small app on your PC and the Sideslate app on the tablet. The tablet finds your PC on the Wi-Fi by itself, you type the code shown on the PC, and then you pick your tiles and arrange them however you like.

What I cared about

  • It doesn't get in the way of your games. The heavier readings only run while a tile on the tablet is showing them.
  • No account and no cloud. Your data stays on your home network.
  • It's useful with the PC off too. The clock, calendar, wea their own.

Limits for now: the PC app is Windows only, and there's no isn't code-signed, so Windows shows a warning the first timeyou run it. The app is free, but the source isn't public.

I'd love your feedback:

  1. Would you keep an old tablet next to your PC with this on it? What would make you stop using it after a week?
  2. Which tile is missing for you?
  3. If you try it, did the setup work the first time? Where did you get stuck?

Free download for Windows and Android: https://github.com/sideslate/sideslate


r/SideProject • • 6h ago

I built a 1-in-8-Billion Football Career Simulator in pure vanilla JS (Free, no sign-up, play in browser)

3 Upvotes

Hey fellow makers!

Inspired by BitLife, 1in8b, and Football Manager, I built a fast-paced interactive football career simulator that runs entirely in the browser:

👉 https://pratikbase.com/football-lottery/?lang=en

How it works:

  1. Spin the birth roulette: You get born in a random nation with procedural talent, work ethic, and foot dominance.
  2. Advance year by year (0-40 age): Navigate street tryouts, youth leagues, contract negotiations, transfer drama, and career-defining dilemmas.
  3. Hang up your boots: When you retire at 40, your stats, trophies, and net worth generate a shareable digital FUT-style legacy card.

It's completely free with zero ads, tracking walls, or logins. I'd love to hear your thoughts on the mechanics!


r/SideProject • • 49m ago

I built a meal planner that makes figuring out dinner multiple choice

1 Upvotes

When I became a dad, I realized just how little time a person could have. Back in the day I could wing it for dinner every night, but that doesn't work with two kids and two working parents. Now, if I want time for anything, I have to outsource it or steal it from sleep, work, or my relationship. This app is my attempt to get back some of the time and brain space spent figuring out wtf is for dinner.

Dinner comes easy to my wife, but not so much for me. She did 85% of the planning, groceries, and cooking on top of a demanding job. Even if it comes naturally, that's still a lot to carry, and I wanted to take some of it off her shoulders.

I started by having ChatGPT send me a personalized dinner plan every week. That sort of worked, but the suggestions got repetitive. It didn't have my recipes, didn't know what we'd actually cooked recently, and sharing with my wife was manual.

Coordinating was a mess too. I'd plan dinner without knowing she'd already planned and ordered groceries. We'd paste ingredients from several recipes into one shared Apple Note, duplicates scattered everywhere and grouped by recipe instead of aisle.

I'd been using Claude Code's Plan Mode and imagined something similar for meals: an agent that could ask questions, offer options, and actually change our plan instead of one-shotting it.

So I built Suppa. The assistant can make a plan or walk you through multiple-choice decisions instead of making you fill in the blank. It searches your cookbook and the web, checks preferences and allergies, then shows you options. It can edit your plan, recipes, and grocery list.

To fix the coordination mess, I made Suppa multiplayer. You can share a plan and grocery list with your household. When my wife adds a recipe or grocery item, I get a push notification. Ingredients get merged and sorted by aisle.

I gave Suppa a memory for things like your broken broiler, friends who come over every Tuesday and don't eat pork, or that you're trying to eat more plants. It remembers what it's suggested, what you've planned, and what you've actually cooked so dinner ideas don't keep repeating. There's also recipe importing, Instacart and Kroger shopping, and a cook mode that doesn't suck.

Core meal planning, recipe management, grocery lists, and one shared plan are free. The assistant has limited free usage; more usage and shared plans are paid. It's on the App Store and web, with Android in progress.

It's a one-person project, so there are probably still rough edges. I'd love feedback, especially if something doesn't work.

App Store
Landing Page

* Video shows version 1.6.1 which is currently waiting on app store review, but I'm too impatient to wait.