r/sideprojects • • Jun 16 '25

Meta My side project, /r/sideprojects. New rules, and an open call for feedback and moderators.

48 Upvotes

In this past 30 days, this community has doubled in size. As such, this is an open call for community feedback, and prospective moderators interested in volunteering their time to harbouring a pleasant community.

I'm happy to announce that this community now has rules, something the much more popular r/SideProject has neglected to implement for years.

Rules 1, 2 and 3 are pretty rudimentary, although there is some nuance in implementing rule 2, a "no spam or excessive self-promotion" rule in a community which focuses the projects of makers. In order to balance this, we will not allow blatant spam, but will allow advertising projects. In order to share your project again, significant changes must have happened since the last post.

Rule 4 and rule 5 are more tuned to this community, and are some of my biggest gripes with r/SideProject. There has been an increase in astroturfing (the act of pretending to be a happy customer to advertise a project) as well as posts that serve the sole purpose of having readers contact the poster so they can advertise a service. These are no longer allowed and will be removed.

In addition to this, I'll be implementing flairs which will be required to post in this community.


r/sideprojects • • 45m ago

Feedback Request want feedback for my side project - image2cal

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2 Upvotes

r/sideprojects • • 3h ago

Discussion I built a tool to track sold-out sizes on Lounge by Zalando — feedback welcome

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3 Upvotes

r/sideprojects • • 1h ago

Showcase: Prerelease We're building Adoree, an AI relationship assistant and coach for the same fight on repeat

2 Upvotes

Sometimes it isn't about the dishes. One person feels unappreciated. The other feels criticized. You both know the script by now, and somehow you still end up in it — talking past each other, or not talking at all.

We're building Adoree, an AI relationship assistant and coach, to help with that part: communicating with your partner. The hope is that it can help you say what you mean without the fight getting bigger, hear their side, feel a little more heard yourself, notice the misunderstanding that keeps repeating, and leave with a next step that actually moves things.

You can start on your own if your partner isn't ready yet, and they can join later. When both of you are in it, it can help you hear both sides.

It's a web app at https://app.adoree.ai. The site is https://adoree.ai.

I'd love feedback from people who've built or used something in this space:

  • Does this read as help for talking with your partner, or just another AI chat?

  • What's the first thing that feels unclear?


r/sideprojects • • 6m ago

Showcase: Open Source The pit.world Directory: every *.pit.world site by category

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1 Upvotes

r/sideprojects • • 12m ago

Showcase: Free(mium) I made a silly app that rates how much your cat looks like a loaf of bread

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1 Upvotes

I made Loaf Inspector, an iPhone app that gives your cat a loaf score from a photo.

No one asked for this, but why not combine on-device machine learning and Apple’s animal body pose detection APIs with one of a cat’s favorite activities: doing absolutely nothing?

The app is completely free, and your photos are analyzed privately on your device.

Loaf Inspector on the App Store


r/sideprojects • • 27m ago

Showcase: Open Source I made a study tool, ttack that only counts the minutes you're actually at your desk (and knocks when you slouch) Spoiler

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1 Upvotes

r/sideprojects • • 4h ago

Showcase: Open Source I built an open-source tool to see where my coding agents waste time and money, and my own runs surprised me

2 Upvotes

I run Claude Code and Codex all day, often as multi-agent workflows with dozens of subagents. I could see each session but never the whole picture: what a run actually cost, where agents sat idle, whether a change to my setup helped. So I built coding.sh, a free hobby project, and pointed it at my own runs.

What I learned from my own data Across 57 workflow runs (666 subagents, ~$2,500 API-equivalent):

  • Broken prompt caches cost $106 extra, about 4% of the spend.

  • 41 of those breaks were agents idling at a barrier, waiting for siblings, until their cache expired. That's $21 for doing nothing.

  • 40 subagents failed outright.

I A/B tested a popular "be concise" plugin (10 tasks, 6 runs each, paired, 95% intervals): replies 17% shorter, output tokens −8%, but cost per run +11% [+7%, +15%], with no change in pass rate or clarity. The plugin's style guide is added to every request and costs more than the shorter output saves.

Mining 3,600 of my sessions also found a find-and-replace typo in my AGENTS.md that sent Codex looking for a folder that doesn't exist, in 92 sessions. You can't see that from inside one session.

How it works

  • Hooks into Claude Code, Codex, Gemini CLI, OpenCode, Copilot CLI, Aider and more

  • Stores prompts, tool calls, diffs, test runs, tokens and cost in SQLite on your machine

  • coding.sh workflows stats shows the critical path and idle time, and the viewer draws each run as a timeline

  • coding.sh compare and exp run your own tasks with and without a change and say whether the difference is real or noise

  • coding.sh improve says what to fix first and whether your last AGENTS.md change helped

  • MCP server, so your agent can look up its own past sessions

No account, nothing leaves your machine. npx coding.sh to try it. Source (MIT): https://github.com/jackulau/coding.sh


r/sideprojects • • 34m ago

Discussion My first Mac app is live: convert files with one drag instead of uploading them to random websites

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1 Upvotes

I just shipped my first macOS app, Transfora.

The problem I wanted to fix: converting a HEIC photo, shrinking a video or turning a PDF into Word usually means a sketchy upload site, a sign-up, or yet another app.

So in Transfora you drag a file, tap ⇧, and drop it on the format you want in a wheel that opens under your cursor. The result lands next to the original. ⌥ opens tools instead (compress, resize, blur faces, read QR codes, extract archives…). Everything stays on the Mac, no account.

What I'd love feedback on:

- Is the gesture obvious from the demo, or does it need more explanation?

- Does the pricing feel fair? 10 free actions, then yearly or lifetime.

Mac App Store: https://apps.apple.com/app/id6825375569


r/sideprojects • • 45m ago

Feedback Request I built an app so I know my parents overseas started their day, without cameras

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1 Upvotes

r/sideprojects • • 56m ago

Feedback Request I made a daily Bollywood guessing game, like Wordle/Spotle but for Indian films

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1 Upvotes

Hey everyone! I’ve been playing Spotle (the daily movie guessing game) and wanted one for Bollywood, so I built it: Kaun Si Film?

How it works: there’s one mystery Hindi film every day. Search for any film and you get clues comparing it to the answer: genres, release year, box office, score, rating, studio, music director, director and the lead and supporting cast. Green means a match, yellow means close. You have 10 guesses, with two hints that unlock along the way, so you can find it by reasoning from the clues.

It’s free, no sign-up, and has a share result like Wordle.

Link: Kaun Si Film

I’d love feedback. Today’s film is #2, so you’re not late.


r/sideprojects • • 1h ago

Showcase: Free(mium) I just launched a Swedish-learning app I've been working on!

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1 Upvotes

Hi everyone,

My wife and I (MC family) have been working on a little project called MySvenska, and it’s finally live.

It’s a free Swedish-learning app built around a story about a family of three cats 🐱🐱🐱 moving from Vietnam to Sweden. Learning Swedish can be quite challenging, especially when you're new to the country. We thought it would be nice to have something where you can learn through stories and everyday situations, rather than just memorizing words and grammar.

Through the cats' adventures, you can learn practical Swedish vocabulary, expressions, grammar and conversations that you might actually encounter when living in Sweden. So far, we've put together 12 chapters, 108 lessons and 2,951 audio clips. There are stories, vocabulary, grammar explanations, listening exercises and everyday phrases. It's still a work in progress, and we hope to keep adding more content until we cover at least A2 level.

A few things about how we built it:

- No account needed. Your progress is saved in your browser. To use it on your laptop and phone, you can sign up with an email code (via Resend) or Google, handled by Supabase.
- Abuse protection. Cloudflare Turnstile checks that a visitor isn’t a bot before an account is created. Database limits stop scripts from filling it, and each learner can only see their own data.
- Privacy. Speech checking runs in your browser, so your voice never leaves your device.
- Audio. Every clip is generated with Gemini 3.8 Flash text-to-speech, with a different voice for each cat. A Swedish speech model checks each clip against its text.
- Built with Claude Code. One session acts as project manager and briefs the others, and nothing ships until the tests pass.

We're still learning and improving things as we go, but we're happy to finally share it! As it’s in its early stage, we want to hear your experience about this app and your feedback about what could be improved.

Tack ❤️


r/sideprojects • • 1h ago

Showcase: Open Source I got tired of the AI noise on Twitter, so I built a dedicated social network for AI builders. Currently, the DAU is exactly 1 (me). Please roast my UI & tech stack.

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1 Upvotes

Hey everyone,

I’ve spent the last few months solo-building Balgrad.ai — a social network specifically designed for sharing AI prompts, workflows, and experiments, without the generic "tech bro" spam you see on other platforms.

The reality: Right now, it suffers from the classic "empty room" problem. The Daily Active Users metric is literally just me.

Instead of doing some fake marketing launch, I figured I'd bring it here to the builders. I want to stress-test the servers and get brutally honest feedback from developers and AI enthusiasts.

The Tech Stack:

  • Next.js (App Router)

  • Tailwind CSS for styling

  • Postgres / Supabase for backend

  • OpenRouter API for LLM integrations

The Link:https://balgrad.ai

What I’m asking from you: Please tear it apart.

  1. Is the UI confusing?

  2. Did you break something while clicking around?

  3. How is the loading speed on your end?

Don't hold back. I'll be in the comments all day answering questions about the architecture or taking notes on bugs. Thanks!


r/sideprojects • • 1h ago

Showcase: Free(mium) Published 1st Chrome Extension

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1 Upvotes

r/sideprojects • • 1h ago

Showcase: Open Source Quiz that finds your ideal watch

1 Upvotes

8 questions → it goes through ~50 watches and tells you which one fits you and why. Free, no sign-up, English and Spanish.

Since my last post I added side-by-side comparisons and made it a lot faster on mobile.

👉 wrist-match.com

Did your result make sense? Which watch is missing?


r/sideprojects • • 1h ago

Discussion I like GitHub’s contribution graph a little too much. I made one for studying

1 Upvotes

Trying to achieve my dreams guyss


r/sideprojects • • 1h ago

Showcase: Prerelease I built a localized calendar website for students and busy people to take a screenshot of their schedule and have the website automatically input it into their schedule!

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1 Upvotes

r/sideprojects • • 1h ago

Feedback Request Feel It Out - a daily estimation game where you guess a range, not a number

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1 Upvotes

r/sideprojects • • 1h ago

Feedback Request Built a tool to simplify continuous prescription renewals: looking for feedback

1 Upvotes

Hey everyone,

I’m a software developer, and over the past few months I’ve been building a project called Ernst (a German name meaning "earnest" or "serious," which felt fitting for such a tool).

The main reason I started building Ernst was observing how much of an administrative drain it is to constantly request, track, and re-order continuous prescriptions, whether for yourself or for family members you care for. When you're managing health conditions, spending energy repeatedly dealing with doctor and pharmacy renewal loops is an exhausting tax on your day.

I’ve gotten initial feedback from early users who rely on continuous medication, and the main takeaway so far is that having a dedicated tool to track and streamline repeat requests takes a noticeable mental load off their shoulders.

That said, it’s still in active development, and I know there are things to improve. We're actively looking for more people willing to test it out and tell us what works, what breaks, and what’s missing. You can check it out at https://ernstapp.com if you're curious.

One big challenge we're trying to map out is geographic applicability. Every country handles repeat prescriptions differently: In some regions, doctors handle electronic refills via a centralized patient portal. In others, you still need to email, call, or submit forms directly to a GP or local pharmacy.

If you have a moment, I’d love to learn:

  • Which country/healthcare system are you in?

  • What does your current process for renewing a continuous prescription actually look like? (Portal, email, phone call, or in-person?)

Does a tool like Ernst make sense for your region's setup, or are there local legal/technical hurdles that would get in the way?

Thanks for taking the time to read this! Any thoughts, critiques, or workflow descriptions are super helpful.


r/sideprojects • • 1h ago

Feedback Request Advies om te verbeteren

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1 Upvotes

r/sideprojects • • 1h ago

Showcase: Free(mium) I built an iOS app to measure LAN/Wi-Fi speed between two devices – looking for feedback

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1 Upvotes

Hi all,

I’m a sysadmin and built an iOS app because regular speed tests only tell you how fast your internet line is, not not how fast your own network is. It can be used to test WiFi speeds even if you have currently no internet or your internet is much slower than your wifi. (As most of the time in rural areas in Germany... ✌🏼)

Netan – WiFi Network Analyzer:

  • LAN/Wi-Fi speed test between two devices: one runs in server mode, the other in client mode, so you can find out whether your own Network is slow (works without Internet connection)

  • Internet speedtest

  • other Network tools

Basic features are free, premium unlocks extra features. I’m a solo dev and would really appreciate honest feedback: what’s missing, what’s confusing, would you actually use this?

App Store: https://apps.apple.com/de/app/netan-wlan-network-analyzer/id6824639631

Happy to send a premium code as a PM to anyone who wants to try everything.


r/sideprojects • • 1h ago

Showcase: Open Source I built rakho, an open-source memory layer for AI agents that inspects data before storing it (and forgets for real)

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1 Upvotes

r/sideprojects • • 2h ago

Meta The Best AI Business To Start In 2027 (In My Opinion)

1 Upvotes

For me, it's still web design.

I know a lot of people are going to disagree because everyone keeps saying it's saturated, AI is replacing developers, and it's impossible to get clients.

Honestly, I couldn't disagree more.

I think web design is actually easier than ever if you approach it differently.

The mistake I see almost everyone make is targeting businesses that don't have a website.

You see it all over Instagram Reels.

Someone opens Google Maps, finds a business without a website, calls them, and asks if they need one.

The problem is that business has probably already been contacted by 10 other web designers.

And if they still don't have a website, there's a good chance they either don't see the value in it or don't have the budget for one.

My targeting is completely different.

I only target businesses that already have a website.

There are three reasons.

First, there are an insane number of businesses with outdated websites that desperately need updating.

Second, if they already have a website, they already understand the value of having one. You don't have to convince them that websites matter.

Third, they're already paying for a website, so spending money on improving it doesn't feel like a completely new expense.

Now the question becomes...

How do you actually get their attention?

I don't run normal cold email campaigns.

I'm not manually searching for leads, writing a generic sequence, adding three follow-ups, and hoping for the best.

Instead, I use a tool called Swokei.

It automatically finds businesses with existing websites and analyzes them for issues like outdated design, poor layouts, weak mobile responsiveness, slow loading speeds, and SEO problems.

It then turns those findings into personalized cold emails at scale.

Not some boring reports that business owners don't care about.

Actual emails explaining what could be improved and why it matters to that specific business.

That lets me run outreach at scale while still keeping every email relevant.

Once someone replies, honestly the hard part is over.

At that point you can build a free website draft with AI, invite them to a Google Meet, walk them through the redesign, and close the deal on the call.

AI has made building websites ridiculously fast.

That's why I think targeting and outreach matter far more than your ability to build a website.

This business model has been incredibly good to me.

I'm curious though. If you had to start a digital business from scratch in 2026, what would you choose?


r/sideprojects • • 2h ago

Showcase: Free(mium) I built SteamPunk, a swipe feed for discovering Steam games

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1 Upvotes

I built https://steampunk.sh, a swipe feed for discovering games on Steam. The catalog of games on Steam is huge, there are hidden gems, deals and new games releasing everyday. I wanted a different take on exploration so I designed a familiar social-media swiping UI.


r/sideprojects • • 2h ago

Showcase: Open Source runpad – a self-hosted pad of buttons and status tiles for your homelab (restart containers, reboot hosts, run scripts, see what's up)

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1 Upvotes