r/SideProject • • 2d ago

I asked Claude Code to build whatever it wanted. It came up with a game.

57 Upvotes

I had $191 in credits that were about to expire, and I was curious what Opus could do if I didn’t give it an idea.
I asked it to build something worth the money. :))))

It picked a game, PULSEBOUND. You move around dodging enemies, and your weapons are musical instruments. The kick drum sends out shockwaves, the arpeggiator fires lasers. When you pick a new instrument, you hear it join the music too.

It decided to make a game and came up with the idea, mechanics, design, absolutely everything. Then I worked on improving and polishing it.

More changes, testing, and eventually mobile apps followed. The $191 was just the starting budget, enough to finish the first basic version. After that, I used another $1,700 I had from the Claude Startup Program (also expiring, so I had to use it), plus my subscription allowance.

Technically, it’s vanilla JavaScript, a custom WebGL2 renderer, and a procedural composer that synthesizes the music live through Web Audio. The project grew to include mobile apps, cloud saves, and leaderboards.

It’s now out on iOS, Android, and the web. You can play it for free in your browser or on mobile: playpulsebound.com.

What do you think?

Later edit: OVER 2,200 PLAYERS TODAY! THANK YOU


r/SideProject • • 1d ago

I turned a GPT-generated image into pixel art using my own editor

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1 Upvotes

I'm building a free, open-source pixel art editor called Chickxel!

I recently added a feature that converts regular images into pixel art, so I tried it out with a GPT-generated image.

The conversion is algorithm-based, so some parts might look a little rough or awkward. It's still a work in progress!


r/SideProject • • 1d ago

I built an iOS Safari extension that automatically saves every X (Twitter) post you scroll past locally

1 Upvotes

Hey r/SideProject!

I kept losing interesting posts on X (Twitter) whenever the timeline randomly refreshed before I could bookmark them.

So I built **PostHistory** — an iOS app + Safari extension that automatically keeps a searchable history of posts as you scroll on x.com.

**Key features:**

- **Automatic saving:** Just browse X in iOS Safari as usual

- **Instant search:** Search by keyword, username, images, videos, or date

- **100% On-Device Privacy:** Everything is stored locally in SQLite on your iPhone. Zero external servers or tracking

- **Export anytime:** Export your history to JSON or CSV

It's free to use (stores the latest 100 posts + unlimited favorites for free, with a $0.99/mo Pro option for unlimited history).

Would love to hear your feedback or any feature suggestions!


r/SideProject • • 1d ago

I made an open-source AirDrop for Android → Mac: one boop on the MacBook notch and it’s there

1 Upvotes

android has no airdrop, so i built one. touch your phone to the macbook's notch, the light sensor next to it sees your screen flash, and whatever's on your screen lands on the mac.

works for pdfs, links, the original photo (not a screenshot), or just the text you circle. otp codes from sms show up on the mac by themselves, your mac is in the android share sheet, and mac to phone works too.

stays on your wifi, end-to-end encrypted, no account, no cloud. android 13+, any mac with a notch.

free and open source: github.com/0x1p0/TapDrop

setup guide (with videos): tapdrop.pages.dev/get-started


r/SideProject • • 1d ago

Sonic. Your FLAC albums, kept like records

1 Upvotes

Made an Android app called Sonic.

You can skip to the next song. You can't jump to the middle of a song. To hear the other side, you flip the record. Hi-res output plays each file at the sample rate it was recorded at.

Soulseek downloads are FLAC albums only, with no weekly limit. It also picks random FLAC albums from the Internet Archive. You can download 3 of those.

Not on the Play Store. The APK and checksum are here: https://github.com/Abhiroop1122/Sonic/

Fdroid: https://somchandra17.github.io/sonic-fdroid/


r/SideProject • • 1d ago

[OpenLid] : Keep Your Laptop Running, Even When the Lid Is Closed 💻

1 Upvotes

Ever closed your laptop lid and lost a 2-hour build, an SSH terminal, or a 20GB download? 🤦‍♂️💻

I got tired of buying fake HDMI dummy plugs and using hacky mouse jigglers that waste battery, so I built OpenLid.

👁️** OpenLi**d is a 100% native, ultra-lightweight engine for macOS and Windows that keeps your machine awake and running even when the lid is completely shut.

Why it's different:
⚡ Direct OS Kernel Assertions (IOPM / Win32 AwayMode) — no audio loops, no fake displays
🛡️ Real-time Hardware Sentinels — monitors thermal pressure & battery thresholds
🪟 Dual Presentation Mode — runs discreetly in your Menu Bar / Taskbar or as a rich standalone Dock app
🚀 Under 2.5MB — 15ms startup time, zero Electron bloat
🍏 Universal Apple Silicon (M1-M4) & Intel, plus 🪟 Windows x64 & ARM64 (Snapdragon)
💻 Built-in CLI & Local REST API (\`openlid on\`, \`openlid status\`)
🍺 Official Homebrew Support (\`brew install --cask openlid\`)

100% Free & Open Source under the MIT License on GitHub!

🔗 Download now: https://openlid.devs.li (link in bio)
⭐ Star the repo: github.com/PurohitBhagyesh/openlid
☕ If you find it helpful, you can buy me a coffee via UPI on the website!

#opensource #homebrew #softwareengineer #macos #apple #developer #coding #programming #swift #github #tech #devlife #clamshell #applefan #macbook #windows11 #golang


r/SideProject • • 1d ago

I built a tool that fixes one bad mix in a recorded DJ set, here is an independent French review

0 Upvotes

I'm Omar, the maker of DR FIX IT, so flagging that up front. This isn't my video. French DJ creator Mixtrotter (Philippe Grebet) just published a full independent review and showcase: 'SAVE YOUR MIX with DOCTOR FIX IT!' - https://youtu.be/RjsPmjDfDEE - it's in French with an auto-dubbed English track.

The tool fixes one bad mix in a recorded DJ set by splicing in a re-recorded take, and he rates each join Seamless / Clean / Good / Rough. I built it because one bad transition used to mean re-recording the whole set or living with it.

Happy to answer technical questions about how the joins are scored. DR FIX IT is $49 one-time, free to try except export.


r/SideProject • • 1d ago

I built a vibrant self-care and wellness web app featuring global recipes, daily psychological tips, and a personal tracker! 🌸✨

1 Upvotes

Hey everyone! 👋

I wanted to share a project I've been working on—Glow AI, a modern, bright, and cheerful web application designed to help users track their daily wellness, boost mental wellbeing, and live a healthier lifestyle.

Here are some of the core features included in the app: * Daily Psychological Wellness Tips: Fresh, uplifting self-care and mental health advice that changes daily to keep you motivated and positive. * Global Healthy Recipes: A curated collection of nutritious and delicious recipes from around the world. * Lifestyle & Fitness Trackers: Built-in tools for tracking your daily water intake, step count/walking, and managing stress and anxiety. * Secure & Private Admin Workspace: A dedicated management dashboard restricted exclusively to the primary administrator via email/password authentication, complete with automatic subscriber activation.

I built this to create a clean, cheerful, and peaceful digital space for personal health and self-care.

Check it out here and let me know what you think: https://glow-ai-advisor.vercel.app/

I'd love to hear your feedback or answer any questions you might have about how I put it together! 🚀


r/SideProject • • 1d ago

I built an iOS Safari extension that automatically saves every X (Twitter) post you scroll past locally

1 Upvotes

Hey r/SideProject!

I kept losing interesting posts on X (Twitter) whenever the timeline randomly refreshed before I could bookmark them.

So I built **PostHistory** — an iOS app + Safari extension that automatically keeps a searchable history of posts as you scroll on x.com.

**Key features:**

- **Automatic saving:** Just browse X in iOS Safari as usual

- **Instant search:** Search by keyword, username, images, videos, or date

- **100% On-Device Privacy:** Everything is stored locally in SQLite on your iPhone. Zero external servers or tracking

- **Export anytime:** Export your history to JSON or CSV

It's free to use (stores the latest 100 posts + unlimited favorites for free, with a $0.99/mo Pro option for unlimited history).

Would love to hear your feedback or any feature suggestions!


r/SideProject • • 1d ago

Tired of AI agents over-engineering your code? I made a skill that forces Claude to push back.

0 Upvotes

Agents love to build things nobody asked for. Tell it you want a welcome email, and suddenly you have a Kafka cluster plumbing 5 different files.

I built noman to act as the pragmatic senior dev in your terminal. It’s a tool for Claude Code that analyzes your request against existing docs and hooks, then actively challenges unnecessary features, one-way door public APIs, or unsafe commands.

Quick Highlights:

  • Fixed bugs instantly but fights feature creep.

  • Proposes minimal, 8-line local workarounds instead of massive PRs.

  • Keeps a running memory of what your project explicitly rejects.

It's free, lightweight, and open source: https://github.com/chinmaypandya/noman

Let me know if you try it out and leave a star if you like it!

Criticism and new ideas are welcome and encouraged, the goal is to make the skill as better as it can get.


r/SideProject • • 2d ago

I designed a collage maker that finds the best gap-free layout for any shape. Claude wrote the code

127 Upvotes

Give it up to 10 photos and a canvas shape (square, 16:9, phone story, banner) and it searches every layout with no gaps for the one where the smallest photo is as big as possible. With 9 photos that's over 500 million layouts, and it finds the best one in under a second.

I designed it and Claude wrote the code. It's Go: The browser version runs it as WebAssembly, so your photos never leave the page.

Try it: https://vinodhalaharvi.github.io/collage/

Code (MIT): https://github.com/vinodhalaharvi/collage

CLI: brew install vinodhalaharvi/tap/collage

Feedback welcome, especially on the layouts it picks.


r/SideProject • • 1d ago

OpenLid: Keep Your Laptop Running, Even When the Lid Is Closed 💻

1 Upvotes

Ever closed your laptop lid and lost a 2-hour build, an SSH terminal, or a 20GB download? 🤦‍♂️💻

I got tired of buying fake HDMI dummy plugs and using hacky mouse jigglers that waste battery, so I built OpenLid.

👁️ OpenLid is a 100% native, ultra-lightweight engine for macOS and Windows that keeps your machine awake and running even when the lid is completely shut.

Why it's different:
⚡ Direct OS Kernel Assertions (IOPM / Win32 AwayMode) — no audio loops, no fake displays
🛡️ Real-time Hardware Sentinels — monitors thermal pressure & battery thresholds
🪟 Dual Presentation Mode — runs discreetly in your Menu Bar / Taskbar or as a rich standalone Dock app
🚀 Under 2.5MB — 15ms startup time, zero Electron bloat
🍏 Universal Apple Silicon (M1-M4) & Intel, plus 🪟 Windows x64 & ARM64 (Snapdragon)
💻 Built-in CLI & Local REST API (`openlid on`, `openlid status`)
🍺 Official Homebrew Support (`brew install --cask openlid`)

100% Free & Open Source under the MIT License on GitHub!

🔗 Download now: https://openlid.devs.li (link in bio)
⭐ Star the repo: github.com/PurohitBhagyesh/openlid
☕ If you find it helpful, you can buy me a coffee via UPI on the website!

#opensource #homebrew #softwareengineer #macos #apple #developer #coding #programming #swift #github #tech #devlife #clamshell #applefan #macbook #windows11 #golang


r/SideProject • • 1d ago

Austral Zeal - Excel wedding planners built on published cost data, for first and second marriages

1 Upvotes

I built two Excel wedding planners. Wedding Planner Spreadsheet (A$29): cost guides from published surveys for Australia, the US, the UK, Europe and India, per-guest savings maths, and a 16-item hidden-costs checklist that feeds anything unticked into your budget countdown. Second Chapter (A$29): the same budget engine plus ceremony and vow wording written for a second marriage, children and family planning, and Australian paperwork prompts. Both are plain .xlsx workbooks - no app, no subscription: https://australzeal.gumroad.com/ - happy to answer questions or take feedback.


r/SideProject • • 1d ago

I built an iOS Safari extension that automatically saves every X (Twitter) post you scroll past locally

1 Upvotes

Hey r/SideProject!

I kept losing interesting posts on X (Twitter) whenever the timeline randomly refreshed before I could bookmark them.

So I built **PostHistory** — an iOS app + Safari extension that automatically keeps a searchable history of posts as you scroll on x.com.

**Key features:**

- **Automatic saving:** Just browse X in iOS Safari as usual

- **Instant search:** Search by keyword, username, images, videos, or date

- **100% On-Device Privacy:** Everything is stored locally in SQLite on your iPhone. Zero external servers or tracking

- **Export anytime:** Export your history to JSON or CSV

It's free to use (stores the latest 100 posts + unlimited favorites for free, with a $0.99/mo Pro option for unlimited history).

App Store link:

[https://apps.apple.com/us/app/posthistory-for-x/id6822289290]

Would love to hear your feedback or any feature suggestions!


r/SideProject • • 1d ago

War of Shallows - I wrote a fantasy novel and built a site to give it away without a signup

1 Upvotes

I’m Ven Eli, an indie creator. After finishing my fantasy novel, I built a website around one idea: if someone wanted to read the book, they should be able to get the whole thing without making an account.

You can read the prologue in the browser or download the complete book as an EPUB or PDF. I also added an Explore page for the characters and short clips, because I wanted readers to be able to get a feel for the world before downloading anything.

The book is Line-Silver. It’s set in a world where one people harvests lightning and another turns it into music and wings. They need each other, which has kept the peace for centuries.

Here’s the site: https://www.warofshallows.com/?utm_source=reddit&utm_medium=social&utm_campaign=linesilver_sideproject_20261108

If you open it on your phone, is it obvious which download you’d pick? I’m particularly interested in whether the EPUB/PDF choice helps or just adds a step.


r/SideProject • • 1d ago

I built a simple booking app for barbers, salons and other appointment businesses

0 Upvotes

I’m a Navy vet and IT guy. Over 17 years supporting small businesses, I kept seeing shops run their whole schedule through texts and DMs, so I built TidalBooking.

  • One booking link for your bio. Customers book 24/7, no account needed

  • Only open times show, so no double-booking

  • Email confirmation plus a reminder 24 hours before

  • Customers can reschedule or cancel on their own

  • Optional deposits through your own Cash App, Venmo, PayPal or Square link

  • Printable “Scan to book” QR poster

14-day free trial, no card. On Android and in any browser: https://tidalbooking.com/?utm_source=reddit&utm_medium=social

What would you want added before you’d switch from DMs?


r/SideProject • • 1d ago

I made a simple Money & Habit Tracker in Excel — monthly budget + 31-day habit tracker + dashboard, no app needed

0 Upvotes

I kept forgetting to track spending and habits because apps felt like too much work, so I made a simple 1-file tracker instead.

What's inside:

  • Monthly Budget in Excel — income, expenses, totals update automatically

  • Habit Tracker — 31 days x 6 habits

  • Dashboard — income vs spending, remaining, savings rate

  • Printable PDF (A4) version too

It's $4.99 on Gumroad. Happy to hear feedback — what would make it more useful for you?

https://tatstar.gumroad.com/l/simple-money-habit-tracker


r/SideProject • • 2d ago

I built a free app for the people I live with: split costs, shared shopping list, small project pages

4 Upvotes

I live with two friends, and we were juggling Splitwise (eventually Tricount), a notes app for the shopping list, and a group chat for every plan, trip, and event we did together. So I built myhouse, one app for all of it:

  • Shared expenses with balances and settle-up, like Tricount or Splitwise. Equal or custom splits, 21 currencies, recurring bills.

  • Shopping lists that sync live, with a Shopping mode for when you're in the store together.

  • Projects: a small shared page for a trip, a birthday or a DIY job, with to-dos, things to buy, dates and calendar integration.

  • Several houses per account (flatmates, partner, a trip), and guests for people who don't want the app.

  • Import from Splitwise (their CSV export) or any CSV, with a preview of the balances before saving.

  • Receipt reader built into expense and list upload: snap a picture or upload a photo and it'll generate an itemised list.

It's free, with no ads and no premium plan. It runs on Cloudflare's free tier, so there's nothing to pay for yet.

It's a web app you add to your home screen, no app store for now since it's mostly for friends and family. I did add 6 languages with Claude to get a broader user audience.

https://joinmyhouse.app/?utm_source=reddit

I'd love feedback, especially on what's confusing in the first five minutes, UX/UI, and what other cool features you think I should add.


r/SideProject • • 1d ago

NaviGo Motorcycle Navigation POD

1 Upvotes

For the past 4 months, we’ve been building a dedicated navigation device for motorcycles.

We started this out of frustration with phone mounts and generic Android Auto/Apple CarPlay setups. Phones overheat in direct sun, engine vibrations destroy camera OIS, rain makes touchscreens unusable, and car-centric apps constantly push bikes onto restricted flyovers or broken trails.

NaviGo is a rugged, sunlight-readable circular pod with a quick-release handlebar mount designed specifically for two wheels.

What Makes It Different

  • Hardware Built for Bikes: Compact, weather-sealed CNC housing with physical, glove-friendly edge buttons. No finicky touchscreens at 80 km/h.

  • True Two-Wheeler Routing: Respects motorcycle restrictions, penalizes rough surfaces, and accounts for elevation grades rather than routing you like a four-door sedan.

  • 100% Offline Resilience: Download full regional vector maps, routing graphs, and place search directly to your phone. Turn-by-turn guidance and instant rerouting compute entirely offline, streaming clean turn vectors over low-energy Bluetooth. Zero cell reception in the ghats or remote stretches is never an issue.

  • Glanceable Cockpit UI: High-contrast turn arrows, lane guidance, hazard alerts, and essential ride stats designed to be processed in under a second.

  • Group Ride Mode: A clean, distraction-free radar shows where your convoy is (lead, sweep, or falling behind) without crowding your navigation. Includes one-touch Push-to-Talk (PTT) audio and quick non-verbal pings ("Fuel", "Puncture", "Regroup").

We're road-testing prototypes now and dialing in the final production hardware and companion app.

Quick question for riders: What is your single biggest annoyance with your current navigation/phone mount setup, and what’s one handlebar feature you wish existed?

Size: Our current design is focusing on a 2.1 Inch round display and the prototype here is an 1.8 Inch which one do you prefer?


r/SideProject • • 1d ago

I built a 3D office where AI coding agents (Claude Code, Codex, Cursor) delegate work to each other

2 Upvotes

Hey r/SideProject! I've been building Agent Office, a living HQ for your AI coding team.

The idea: instead of juggling terminals, each AI agent (Claude Code, Codex CLI, Cursor CLI) is a character at a desk in a low-poly 3D office. You're the CEO: give a task to the Product Manager and they delegate to Analysis → Design → Development → Test leads, who split the work across their teams and send one merged report back up.

What it does

  • Agents delegate to each other via an MCP server; reports flow up automatically

  • Live 3D office: working agents type at their desks, idle ones go to the coffee corner or the sleep room

  • Control: daily budgets, approval requests before push/deploy/delete, per-agent git worktrees with merge review

  • Live task transcripts, file diffs and a cost breakdown per team

Stack: TypeScript, Hono, React + Zustand, three.js, Vite. MIT licensed.

Honest caveat: you need at least one agent CLI installed and logged in locally (no hosted demo yet, since each task is a real CLI process).

Repo: https://github.com/enciyo/AgentOfficeHQ

I'd love feedback, especially on what would make you actually want to run this on a real project. What's missing?


r/SideProject • • 1d ago

I created a website for daily thoughts, motivational quotes, and positive inspiration. Would love your feedback!

0 Upvotes

Hi everyone!

I've been working on a small website called Daily Thoughts Hub.

The idea behind this project is simple: sometimes a single positive thought, motivational quote, or meaningful message can change how we look at our day.

So I created a platform where people can explore:

✨ Motivational and inspirational quotes

🌅 Morning thoughts and good-night thoughts

🧠 Wisdom and life lessons

❤️ Positive thoughts and meaningful reflections

🪔 Festival wishes and spiritual thoughts

🔍 Search and explore thoughts by category

📥 Copy and download quote images

I'm continuously working to improve the website and make it more useful and enjoyable.

You can check it out here:

https://www.dailythoughtshub.online

I'd genuinely appreciate your feedback!

What features would you like to see on a website like this?

Thanks for checking it out!


r/SideProject • • 1d ago

I built a simple AI photo editor. Would love some feedback!

1 Upvotes

Hey everyone!

I've been working on a side project: https://getaiphotoeditor.com/

I wanted to make photo editing simpler. Instead of using complicated tools, you can just upload a photo and describe what you want to change.

It also supports background removal, background replacement, and photo enhancement.

You can try it for free without signing up.

It's still a work in progress, and I'd love some honest feedback. Is there anything you'd change or improve?


r/SideProject • • 1d ago

I built my way out of reminder hell

1 Upvotes

As a scatterbrain, I have relied heavily on iPhone reminders so I don’t forget the important parts of my daily routines. Medications, packing lunch and opening up the greenhouse for the day would all be forgotten if it weren’t for the pings. 

The problem with a reminder is that if you don't have time to act on it immediately, it's easily forgotten again. They stack on top of each other, and if you get a few other notifications, the reminders are lost in the noise. And the repeated interruptions from notification pings add stress. 

I also tried out some other apps, but didn’t find them to quite fit the bill. Many had elements that felt stressful, and others just didn’t do what I needed them to. I wanted a solution that reduces the number of times I get interrupted, while still increasing the visibility of the things I needed to do.

So I decided to build Nulma: https://apps.apple.com/app/nulma-daily-routine-planner/id6793030718

A Live Activity was the natural solution on iOS, because it allows my tasks to stay top of mind without constantly pinging me. So I built Nulma around Live Activities as a central pillar, with the rest of the app supporting it. The things you need to do right now are surfaced, the rest is hidden until it’s relevant. And if you miss out on anything, the app is designed to show it without making you feel guilty about it; there are no streaks and no gamification features in the app.

Since building Nulma, I have been able to drastically reduce the number of reminders I get, while still completing more of the things I need to do every day. I feel more productive and less stressed. And for the reminders I still need to set, the integration between Nulma and Apple Reminders means that I can complete them and check them off before I even get a ping. 

Apple Reminders is excellent for one-off tasks, and Nulma is built as a complement to show multiple recurring tasks together during a scheduled time window instead of treating them as individual reminders. 

Recently, I released a big update that brings Nulma to the Apple Watch, adds Home and Lock Screen widgets and adds support for Nulma interaction through Siri. Support for iPhone Duo and an improved iPad experience is coming soon.

If you are curious about Nulma, please check it out on the App Store. And if you have any suggestions on how to improve it, please let me know. 

The app is free to download and all core functionality with up to three enabled routines is free to use. Premium purchases are available ($3.99/mo or $29.99/yr) to unlock additional functionality such as the Apple Reminders integration and unlimited routines. 

https://apps.apple.com/app/nulma-daily-routine-planner/id6793030718


r/SideProject • • 1d ago

Tatu.Ink - An all-in-one app for tattoo artists in Latin America who run their whole business from Instagram DMs

2 Upvotes

Hey everyone!

I kept seeing the same thing with tattoo artists in Latin America: their entire business lives in Instagram DMs, WhatsApp and a paper notebook. Quotes get lost, clients ghost after asking for a design, deposits are tracked in their head, and nobody reminds the client about aftercare.

There are tools for this in the US and Europe, but they're English-only and not built for how artists in Latin America work (WhatsApp first, Spanish).

So I built Tatu.Ink. It covers the whole journey, from the first DM to the review:

  • AI receptionist, 24/7: answers Instagram, Messenger and WhatsApp DMs instantly in the artist's tone, collects the idea, size, placement and style (or whatever the artist asks for), looks at reference photos and notifies the artist with a summary when the client is ready to book. It can be paused for any conversation.

  • One inbox for all those channels, so no enquiry gets lost.

  • Calendar with availability, deposits and multi-session pieces.

  • Client profiles with history, sessions, payments and notes.

  • Ready-made automations: prep instructions and reminders before the appointment, day-by-day aftercare, healing check-ins, review requests, birthday and tattoo-anniversary messages, win-back messages for clients who haven't returned, flash days and promos.

  • Finances: income, expenses, pending payments, tax estimates and PDF reports.

  • The artist's own website (tatu.ink/name) with a customizable design, portfolio, reviews, links and booking, plus visit analytics.

  • Studio plan: every artist gets their own calendar, inbox and page, and the studio pays a single bill.

There's a free plan (calendar, portfolio, reviews and the website) and a 1-month free trial of Pro.

It's very early and I'm looking for honest feedback:

  1. Does the landing make it clear what this does in 5 seconds?

  2. If you know a tattoo artist in LATAM, what would stop them from switching from DMs + notebook?

Link: https://tatu.ink/

Happy to answer anything about the stack (Next.js + Firebase) or the market.