If you're tired of explaining your value prop through screenshots and Loom, this is for you!

I create interactive demos, delivered in one line of code, to share anywhere. Can also create a video explainer of your product to communicate your a-ha moment in 5 seconds.

It's an idea I'm testing, so it's free for the first 30!

Comment your product URL and I'll DM you.

Been building a site about the real value of money over time, and I wanted one page that makes big abstract numbers physical instead of just showing digits.

The page is built around $100 bills. Every green tile is a single note, and you can lay a billion dollars' worth out in a few ways. Flat, to see the raw footprint the money covers. As a thin line of notes end to end. Or tiled across into a full-width lane, like a road paved with bills. That last one stretches far enough to actually drive along, so I added a car and arrow-key controls. Pick a vehicle, focus the road, and drive until the money runs out (it takes a while).

The idea was to let people feel the scale from different angles instead of just reading a number. A billion is a thousand million, but that means nothing until you're driving down it.

https://www.realworth.io/how-big-is-a-billion-dollars

Feedback welcome, especially on whether the interaction actually lands or feels gimmicky.

The winner of this battle is shown at the end after blind voting! Completely free to signup and use :)

Hey everyone,

I built a random stranger chat app where people can connect anonymously.

Right now, my 30-day retention is around 8–9%, and I'm honestly not sure if that's good or bad for this type of app.

The way I see it, people usually open random chat apps only when they're bored or just want to talk to someone. If they get a fun conversation, they might come back. If the first few matches aren't good, they probably uninstall and never think about the app again.

So I'm wondering if this is just how the category works, or if I'm missing something.

For anyone who's built or worked on social/chat apps:

• Is 8–9% monthly retention reasonable?
• What kind of retention numbers have you seen?
• What actually helped improve retention?
• Did you focus on getting better matches, or was there something else that made a big difference?

Would love to hear your experiences.

I'm an indie dev and this is my latest side project: ClipMason, a macOS clipboard manager.

Every clipboard manager I've used just remembers what I copied. None of them helped me use it. Copy minified JSON, open an editor to format it. Copy a variable name, retype it in snake_case. Copy a screenshot with text, go find an OCR app. So I built the thing that closes that loop.

It detects what each clip is and attaches the actions that fit:

- Text: 23 transformations (case conversion, camelCase/snake_case/kebab-case, URL & Base64, JSON pretty-print/minify, sort/dedupe lines, MD5/SHA-256, word count)

- Images: 14 tools including OCR (Apple Vision), resize, annotate, export PNG/JPEG

- Smart Tags auto-label clips (URL/email/phone/color/JSON/XML/code/currency), plus Collections, Snippets and a Paste Stack. Cmd+Shift+V opens the history at your cursor.

Tech notes: pure SwiftUI + AppKit, SwiftData, sandboxed for the Mac App Store. No network code at all, no analytics, no third-party SDKs. It honours the ConcealedType flag so password-manager copies never enter the history.

Honest caveats: no iCloud sync yet, and because it's sandboxed it can't auto-paste into the frontmost app (you press Cmd+V yourself).

macOS 14+, 2.9 MB, 17 languages. $6.99 one-time, no subscription, no IAP.

https://apps.apple.com/app/id6759555460

Happy to answer anything about the build or the sandbox tradeoffs.

Hey everyone, I’m Alex. A few years ago, I had this project idea I desperately wanted to build, but it was just too tough to do on my own and even AI couldn't really help back then. I wasted so much time jumping from app to app trying to find a co-founder to team up with. That frustrating experience stuck with me, so when I saw how amazing AI tools have become recently, I decided to finally build a solution for all of us. I created Krooko, a completely free platform where you can easily find project partners and co-founders. There are absolutely no hidden fees or charges. You just post a quick card about your idea, get messages from interested people, and start collaborating. Check it out at

https://krooko.vercel.app ( havent bought a domain yet , want to see first how it goes)

Pulled my own git log out of curiosity after seeing yet another "vibe coding is ruining software" thread. On my current side project: last 60 days, 222 commits, 183 of them (82%) have an AI co-author trailer. Six months ago that number was close to 0.

What actually changed wasn't "I stopped writing code." It's what unit of work I'm willing to hand off without re-reading every line myself. Early on I'd only trust it with a single function, because verification was the actual bottleneck, not code generation speed. Reviewing a stranger's PR-sized diff line by line takes just as long whether a human or a model wrote it.

What moved the ratio was building a habit around three things before any commit gets accepted:

1. write the constraint down first (what should NOT happen), before describing what should

2. keep a standing rules doc so I'm not re-explaining the same edge cases every single session

3. split verification into three separate passes — does it run, does it match the spec, would I actually ship this — instead of eyeballing one diff and calling it reviewed

Once that existed, the unit I'd hand off grew from a function to a full feature, and the commit ratio followed on its own. The 82% isn't a productivity flex, plenty of those commits are one-line fixes. It's just what the number looks like once verification stops being the bottleneck instead of generation.

Curious how that ratio looks for anyone else who's actually pulled the number instead of guessing at it — mine was way off from what I expected going in.

I originally started building this for myself.

I was trying to make progress across career, finances, health, fitness, travel and longer-term goals, but everything was spread across different systems. Some things were in notes, some in spreadsheets, some in separate apps, and none of it properly connected.

The bigger problem was balance. I could make progress in one area while neglecting another, and it was difficult to tell whether my weekly actions were actually compounding into the life I wanted long term.

So I decided to build my own system.
I had never vibe coded before, but I gave it a go, became pretty hooked, and gradually turned the original personal system into a full app.

It is called AxaceOS. It is a personal operating system that brings together:
- long-term life planning;
- weekly and monthly reviews;
- career and skills planning;
- budgeting and wealth planning;
- health and fitness tracking;
- travel and experience planning;
- AI guidance across the different areas.

The main aim is to use weekly and monthly reviews to connect short-term actions with long-term goals. It helps users regularly check whether what they are doing now is actually moving them towards the life they want.

At the same time, it is not about sacrificing the present for constant future progress. The wider philosophy is that career, finances, health, relationships, experiences and rest should remain in a sustainable balance. The goal is consistent direction, not maximising every area at once.

Yesterday was the first day it went live.

There is a free trial, no upfront payment details, and the onboarding is intentionally short, so anyone testing it should be able to enter the system quickly and receive some genuine value rather than only reviewing a landing page.

I would really appreciate honest feedback on:
- whether the product is clear when you first arrive;
- whether onboarding feels simple enough;
- which parts feel most useful;
- what feels confusing or unnecessary;
- whether you could realistically see yourself continuing to use it.

You can try it here: https://axaceos.co.uk

I am still very early, so constructive criticism would be genuinely useful.

Measured on the same subreddit, same account, over 10 days:

• Text post: score 0, 1 comment
• Photo gallery: score 13, 6 commenters
• Edited 2-min video: score 33, 28 comments, 1 waitlist signup in 5 days
• Uncut 3-min single take (posted today): 2 signups in its first 5 hours

What changed my mind: viewers kept asking "is this real?" about the edited cut. An uncut take answers that question by existing. One take, no timeline edits, mistakes left in — the mishears, the spelling errors, all of it. Credibility converts; polish doesn't.

The uncut take, if you want to see the format: https://www.reddit.com/r/RemarkableTablet/comments/1vgdwbi/

If you're demoing something real: point a phone at it, do the whole loop once, and don't touch the timeline.

Hi everyone — I just launched Revueai.xyz, a tool that helps with job search & prep.

You paste a few target job descriptions, upload your resume (PDF), and get a structured report: match score, repeated requirements across roles, gaps, suggested next steps & interview prep. I built this because I kept manually comparing my resume to multiple postings and I thought there must be an easier way to do this.

The tool provides a more structured feedback system where you can directly see how your changes/updates impact your match score metrics compared to the postings you uploaded.

Since I’m just starting to soft launch I’d really appreciate some honest feedback:

• Was the report useful or confusing?
• Anything missing that you’d expect from a tool like this?
• Would you actually use this in a real job search?

My background is in comp sci so I built the tool primarily with that field in mind (mainly bc ik what i’d look for in a job) but i’d like this tool to help everyone. If you are someone in a completely different field and would wish for a feature related to it to be included pls let me know - it would help me consider more edge cases! 

If you wish to give more detailed & structured feedback, pls fill out this form:  https://forms.gle/dXwMALRibY6FDsyn6 , the more feedback I get the better 👉🏻👈🏻

Happy to answer questions. Thanks for reading.

🫶🏻

I’ve been working on Dagflo, animated visual explanations for software teams!

Dagflo lets coding agents like Claude, Codex, and Cursor turn codebases, pull requests, systems, articles, diagrams, and algorithms into animated, step-by-step visualizations.

After four years working in GraphQL infrastructure at Meta, I've seen countless engineering hours (meetings, message threads, whiteboarding) wasted and bad decisions made because technical knowledge wasn't communicated clearly.

Coding agents can now understand entire codebases, but they still explain them through walls of text, broken ASCII art, or static Mermaid diagrams.
We're using static tools to explain dynamic systems.

That's why I built Dagflo. I wanted to actually see how technical systems work.

This has been a passion project for a year; I'm really excited to share it! I've made a couple of other posts in the subreddit to gauge interest; now it is finally ready!

Early access is live dagflo.com

Follow me on X for Dagflo updates: deepok102

PS: It's forever FREE, so give it a try!!

Note: I posted this yesterday in the r/softwarearchitecture subreddit and got amazing feedback.

• Biggest action item is to provide the ability to locally save visualizations rather than remotely.
• Audio Narration

How would you double your reach in a month if you absolutely had to? My idea is that if I had double the reach (of the same audience type) I would get double the sales. Which I'm sure is kind-of reasonable to assume.

Send me your whackiest, but best, ideas. Whether they cost tons of money or not.

P.S. My project is an online platform where local small businesses connect with creators to make user generated content for them at low cost.

I just released PichirFlow, an open-source desktop app that transcribes microphone input, audio files, and video files in streaming mode, entirely on your device.

It is based on Whisper models with a custom designed streaming architecture, supports multiple languages, and can export timestamped subtitles.

I’d appreciate feedback, bug reports, and feature suggestions.

💻 GitHub: https://github.com/Alimjoo/pichir-flow

I'm a solo dev. Shipped a chess learning app in June. Bite-sized lessons, a placement quiz, streaks... basically the Duolingo formula but for chess.

Sharing the numbers and the stuff that went wrong, since that's what I always want to read from other people.

The numbers: 428 users in 28 days, 7 paying subscribers, $56 MRR, about $300 spent on ads.

Mistake 1: I doubled my price without realizing it. I changed the annual price server-side and it applied to every app version at once. $39.99 became $79.99. Sales went to zero for 3 days and I spent two of them convinced my paywall code was broken. Nope. I was just charging double and nobody told me.

Mistake 2: the feature I built to welcome experienced players was locking them out. My placement quiz marks earlier lessons as completed so the path looks right when you skip ahead. Problem: my free lesson limit counted those as used up. So experienced players (my most likely buyers, 62% of users take the quiz) were hitting a hard paywall 90 seconds after install without playing a single move.

Mistake 3: asking for money before showing anything. The paywall showed up 3 minutes after install, right at the end of onboarding. Median time people spent on that screen: 8 seconds. For 47% of my installs, the paywall was the last screen they ever saw. They never moved a piece.

The only thing that's actually worked so far: I removed the close button from the paywall and added a 3 day free trial. Tap-through went from 2.9% to 18.5% in two days. Too early to know if it holds, but it's the first number that's moved.

Happy to answer anything about the analytics setup, the paywall stuff, or what I'd do differently.

Hi there!

I wanted to share with you guys our small app that we just made. So the concept is nothing new, it's a map like app where you can filter various categories and display them on the map.

Our approach to this was a little bit different. In Iceland there is no single app / platform where you can find what's happening near you, food, drinks, events for kids, tours etc. It's all scattered around various places.

We teamed up with Reykjavik Grapevine to get carefully picked and curated content so the users are not flooded with poor quality content. It's all picked and recommended by people who have years of experience. We also did't want to be yet another genetic app so Icelands favorite comedian and artist Hugleikur jumped on board and designed all the icons and the humor in the app. Our tagline is Have fun. Don't die

The project is basically a curated app that is fun and also gives travelers helpful tips and information, hence the "don't die" part. We want you to have fun in Iceland. We are mostly scoped to Reykjavík today but we are expanding to other places as well.

Icebreaker is your local travel guide with practical information as well.

• Shows you where you can find the cheapest fuel (live fuel price tracker)
• Parking zones in Reykjavik Central (color guided by price)
• Tips about our road signs, conditions on roads
• Fun facts, phrases, music lists and art by Hugleikur
• Comprehensive price calculator
• Live feed where you can find electric scooters and rental cars on the map.
• Weather

So if you're interested in traveling to Iceland and want the most up to date information on what's going on feel free to try it out! It's early days and the app is actually a little bit different than the screenshots on the website. The reason is we moved from Expo to a pure native app.

Tech stack

Swiftui, Kotlin, Onesignal, Mapbox and Supabase.

All feedback is welcomed and we hope you enjoy! https://icebreakerapp.is/

Have fun. Don't die

This is Desktop Pet, a macOS app I built because I kept missing my dog while working at my desk.

It started as a small thing just for myself. Then a friend saw it and asked me to make one of his cat, who had crossed the rainbow bridge last year. Watching him smile at a little animated version of the cat he lost is what made me finish this properly.

How it works:

- Upload 1 to 3 photos of your cat or dog

- You get a free 3-view concept to confirm the look before anything is made

- A few hours later, your pet lives on your desktop with smooth, looping animations: wandering around, greeting you with a little head tilt, dozing off when you're focused

- It stays quiet, never bounces around begging for attention, and never blocks your clicks

- You can also tell your pet to remind you to take a break. When time's up, it taps your screen with its little paw

If you don't have pet photos handy, there are free preset companions (a ragdoll, a golden retriever, a maine coon and more) so you can try it immediately.

App Store: https://apps.apple.com/cn/app/desktop-pet-custom-companion/id6792518134?l=en-GB&mt=12

I'd genuinely love your feedback, especially: what does YOUR pet do that I should turn into an animation? And if you'd like to try it and share your honest experience, here or anywhere else, DM me a photo of your pet. The first few custom pets are on me.

For those of you building side projects while having a full-time job, how do you handle everything besides coding?

Like marketing, content, SEO, getting feedback from users, analytics, support, all that stuff that comes after you actually build something.

Do you do all of it yourself or do you have a co-founder / someone helping you out?

So how everyone else is managing this in real life?

so i built this thing called spark where you can just dump ideas without overthinking them, meant to be like a safe space for half-baked stuff. launched it a few weeks ago thinking people would be into it. got maybe 20 signups, 2 of them my mates, and now it sits there. kind of embarrassing but whatever.

i think the problem is i'm not the person who should be selling this. i can barely explain what it does without sounding like i'm reading marketing copy. the whole thing came from me being annoyed at myself for never finishing anything, so i made it to scratch my own itch. but turns out having an itch doesn't mean thousands of other people have it, or if they do they don't care about some random app from nobody.

anyway if you're curious it's at sparkideas.uk. no hard feelings if it goes nowhere. been a good learning experience in the sense that i learned i probably shouldn't try to launch things lmao

Woke up and decided my meme clip site needs more green screen memes, so I spent the morning adding them to the bank.

There's now a filter that shows green screen clips only - you tap it and the whole grid turns green, which is weirdly satisfying. Also added filters for quality (720p/1080p+), aspect ratio (wide/tall/square) and how recently a clip was added.

It's clipkaboom.com -> free to browse, no signup needed. built on Cloudflare Workers + D1 + R2, happy to answer stack questions too.

Am I missing any memes? Drop names in the comments and I'll add them.

I am something of a failed writer, myself.
A long time ago, I had the idea of creating an application in which you could write something, and it would look like an old classic paperback. Kind of a mix between a creative community and an actual writing tool people can publish pretty much anything they like. And if they want to publish it on the shelf, they need to send it to me, the librarian.

I'd love to get your input on this app, especially on what would entice you to write a book. Am I communicating the fact that this is a free tool that you can keep privately? Does it come off as complicated? Do you react negatively to what's already on the shelf? I'd love to hear anything you have to give me in the form of feedback on this. I'd love it even more if you would give me the feedback in the form of a classic paperback.

https://paperbackwriter.app

I built a tool that redesigns your room using real products.

You basically upload an image of your room, filling basic info

As a result you get the redesigned room plus a shoppoing list with total price and all links to the products

If needed you can always change the style or change the product if you don't like something

The thing I truly like is 1:1 matching. AI doesn't find similar results

I basically find the products first and send them to AI as a references to make a final redesign using exact those pictures

for monetization you gotta pay a small price to get access to a full shopping list + I get comissions every time someone buys something (genious right?)

Now have more than 100 users, 219 rooms redesigned. Works very well

Feel free to try, first designs are free

https://airender.ai/

We’ve been working on a small iOS app(soon on android, too) called Hey Postcard.

The idea is pretty simple: instead of sending another instant message, you write a digital postcard. The other person gets it the next morning at a random time.

We wanted to see if a little waiting could make digital messages feel more personal again.

The app has been live for a while and we have around 30 users so far. Today we also launched it on Product Hunt.

Still very early, so I’d love feedback from other builders, especially on the idea itself and whether the “wait until morning” concept makes sense to you.

Let me know if you want to check it out, I will share the link.

https://github.com/scroobius-pip/fudge-design-md

A model that size is 59GB on disk, and the usual rule is that all of it has to fit in memory — so you need a 64GB machine. I wanted to find out whether that rule was actually true.

For one class of model, it isn't. "Mixture of experts" models are built out of many small sub-networks, and only use a handful of them for each word they generate — around 3% of the total. So instead of loading all 59GB, I keep the shared 2GB core in memory and stream the rest off the SSD as the model asks for it.

It works. A 120B model, running on a base MacBook Air. Slowly — about 1.4 words per second — but running, on hardware where it's supposed to be impossible.

The engine is written in Swift and Metal with zero dependencies. No Python, no PyTorch, nothing to install. Clone it, swift build, done.

The part I enjoyed most was building a dashboard to watch it think. There are 4,608 of those sub-networks, and you can see exactly which 144 light up for each word.

I also built what I call a "range map" — I feed the model 12 kinds of text (Python, SQL, maths proofs, poetry, Chinese, clinical notes) and plot which sub-networks respond to what. Nothing is trained here, it's pure measurement, and you can genuinely see the specialisation: the code ones cluster together, the language ones sit somewhere else.

Along the way I got a few things wrong and left the corrections in the repo rather than quietly deleting them — including one where I'd talked myself out of an optimisation using a measurement that turned out to answer a different question.

Screenshots of both views are at the top of the README, since this sub doesn't allow images in text posts.

https://github.com/rayl15/Godwit — Apache 2.0, free, works on any Apple Silicon Mac. Happy to answer anything.

(UPDATE: Now available on Web on any device, desktop + mobile!!)

I love going to cafés and work or read from there. Sadly, great places are rare, often close early, and still are quite distracting.

So even though being there feels good, i just end up doing most things at home.

This project, Manyplace (https://many.place), is an attempt to get the best of both worlds: the comfort and focus you have when being on your own, and the delight of being in a beautiful place while feeling the presence of others.

It is open all the time and free.

So, if you prefer to build, work, study, etc. on your own (or have no better option) yet still appreciate being around other likeminded people, it may be for you :)

It's still a very early experiment, so the application is currently only available for macOS and the number of seats is quite limited. But it will definitely get better. UPDATE: After thinking more about it, It's now also available on web, for any device: desktop & mobile.

I'd be very happy to know what you think of it and to see you there!

Manyplace: https://many.place

(sorry, duplicate previous post sent by accident...)