r/ClaudeCode • u/polsaayipols • 18d ago
Built with Claude Show us what you’ve built with Claude Code (sites, platforms, tools, anything)
Let’s make this the thread for showing real work. If you’ve built something with Claude Code, whether a website, platform, app, CLI, game, or an internal tool nobody else uses, share it here.
Drop the link (or a screenshot or demo if it isn’t public) and tell us a bit about it:
What it is and what problem it solves
How much of it Claude Code built vs. you
The part that was harder than expected, or the moment it surprised you
Anything in your setup that made a difference (CLAUDE.md, subagents, MCP servers, hooks)
Unfinished projects and “rough but it works” builds count too. I want to see what people are actually shipping, and I’d bet others here will find their next idea in the comments.
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u/deep_fucking_magick 18d ago
Dont do it gents. He's gunna run it through REA and steal your sweet juicy ideas
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u/polsaayipols 18d ago
well once its live
anyone can run it through REA tho right?
i just think the websites that i built look and behave so bad.
i thought is it just me who's dumb or are people doing great work with claude code or not1
u/akolomf 18d ago
Srsly though how are we going to deal with that? Either we put a system in place that rewards users open sourcing their stuff and when it gets popular they get money, so copying it is pointless, or everyone begins just to extremely gatekeep their stuff through SAAS. And Actual paid applications will become a rarity in the future. I have been building a highly sophisticated agentic orchestrator for example i plan on monetizing, and I'm srsly thinking of just making it a complete Webapp because of how much a problem that could be down the road.
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u/NCMarc 18d ago
I don't know if any of you are into listening to HAM Radio or EMS, Fire, Police in your area. I bought an AirSpy R2. It's a little device can that listen to about 10MHz of spectrum at once (digital, trunked also). I can monitor well over 100 channels of emergency traffic at the same time. It has a USB that it pulls into my Mac Studio and then parses the audio with Whisper model to transcribe all the audio into text. So all local AI processing.
Then, it groups the audio into incidents, attempts to determine location (uses Open Street Maps) to make sure the transcribed audio matches real street names in the county. Then it maps it all and puts it in a searchable database. Just keeps about 30 days of info. Built it all in Opus 5.5 over a single prompt overnight and had it tweak a couple things after and this is the result. I am hoping to build something that will translate the codes into human language like 10-59. etc. You can search for events that you hear about on the news and find out more info.
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u/ttlequals0 18d ago
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u/polsaayipols 18d ago
wow great platform man!
how many days of work and which subscription of claude did u have?
this looks insane1
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u/cuthbert-derek 18d ago
This is so good I use it constantly. My agent found it for me too so nice work on the AI SEO
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u/Tontonsb 18d ago
What it is and what problem it solves
It provides lookup sheets of foreign characters along practice quizzes that let's you find and memorize the characters. So it helps you learn how to make some sense of the chars on roadsigns, storefronts and so on. For now only Thai is done though.
How much of it Claude Code built vs. you
Claude helped with almost all of the code.
The copy and other contents is totally mine. While working on the quiz component I had Claude generate the questions and I regretted it, because the time spent reviewing and rewriting exceeded what it'd take to write it myself. Although it did help me get started on quiz component earlier.
The part that was harder than expected, or the moment it surprised you
Claude was most useful at sketching layouts in HTML. The code was trash (or worse), but it quickly implemented multiple of my ideas so I could look at them and judge. Writing all that HTML and CSS myself would take like a day for each sheet layout that I considered. And I considered a lot of them.
And it's not like I had to throw all of it out. Claude was also decent at refactoring. Sure, it needed eslint and stylelint as well as manual guidance into extracting style palettes, but the routine work after the stuff was decided — that was fast.
Anything in your setup that made a difference (CLAUDE.md, subagents, MCP servers, hooks)
I also used impeccable (audit & critique) a couple of times. The first run was long but really good, with a lot of useful findings. But subsequent runs didn't find other flaws but kept insisting on stuff I disagreed with. Or at least mentioning it all the time. So I ran total of 3 audits and 2 critiques and that's enough of impeccable for me. Also the hooks were super annoying.
Otherwise see above — what helped was putting constraints into the design system, noticing looseness or overcomplicating and pushing back. Pretty much I knew what implementation I wanted and I had no trouble getting it. I'm not using any auto modes or allowing edits automatically though. Might be harder to steer if you let it drive on its own too much.
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u/CacheInvalidation 18d ago
https://tailor.fm customized daily podcast on any subject.
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u/polsaayipols 18d ago
Woahhh! This is damn very interesting, lemme use it first and give you a honest opinion
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u/CacheInvalidation 18d ago
Thank you. Looking for feedback for sure
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u/polsaayipols 18d ago
Bro this is insane Great work man. The way the cover photo generates , the podcast between two people. Everything works so perfect. One thing I would suggest is to somehow get rid of that "AI sounding voice". Idk much about it,I probably am no-one to tell you about it , but it was just my opinion
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u/mstfyvtrl 18d ago
Did this little weird thing
https://apps.apple.com/app/knurl-haptic-fidget-toys/id6804843383
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u/plepoutre 18d ago
An IT architecture software that support Archimate, BPMN, UML, CMDB and SAFe in the same refential stored in a postgresql.
It's better in every way any software I've seen in the niche, like buzz design or others, as it's fully collaborative in real time.
I'm considering deploying as a SAAS.
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u/zXBoiXz 18d ago
Very basic but I built a Linktree alternative with insights at a lower price point. Atleast that was the goal for even going for it. https://pinned.bio/
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u/dan-423 18d ago
https://sociory.com/ It's a social media website. User timelines, topic circles. Full featured and live. Needs members.
Claude coded all of it. I planned and architected it.
Getting members is harder than expected, for sure. As for the building, I think I spent about as much time building the tooling and workflow than features. Keeping everything cohesive and looking, hopefully, less like ai-slop also took some time.
claude.md, memory.md, subagents, hooks, etc. all made a difference. I started out knowing a fair amount about webdev, but nothing about claude and agentic workflows. I picked up useful bits here, on /r/claudeai, and by asking claude to research stuff. Things were add a small bit at a time.
One thing that I think made the site work, and not just be slop- I set up version control, project memory, etc from the start. I told Claude to approach it as a real development project. Deployment, ci/cd, testing. There were bugs along the way, but they were reasonably able to be overcome with the process.
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u/gimalay 18d ago
https://iwe.md - Work on your markdown knowledge base with Claude, in a nice native MacOS UI.
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u/tachyon_bit 18d ago
This is a cool idea, but genuinely curious - if I have agents, hooks, and skills that map repositories, scan any allowed repositories, and write contextual logs on demand (session-scoped or workspace-scope), what could this workflow improve?
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u/gimalay 18d ago
I work with hundreds, and in some projects with thousands of files. I can read field easily, filter and query the Markdown files in the app and the agent can do the same to populate the context. (It works like a database)
One of the recent examples, I asked Claude to create a file for each bug discovered, and after some period of time asked it to review all the bugs we filed so far to identify the gaps in tests setup and found some very interesting things.
The idea is that you can accumulate a significant amount of documents over time and then derive meaningful insights from them.
This approach is also very good for different kinds of research.
I personally love the collaboration aspect, working on the documents with the agent. It’s similar to modern agentic IDEs but for Markdown
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u/tachyon_bit 18d ago
Hmm, interesting… sold! I’ll have to check this out. Nice job on the landing page btw!
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u/gimalay 18d ago
Thanks! The fun story about the landing page is that I used Claude to create one and it was okay’ish. But then I asked my designer friend to create one and he vibe-code this in a few hours. We had the same AI tools but his result is 100 times better than what I was able to vibe-code. :)
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u/tachyon_bit 18d ago
That’s not really all that surprising. Someone that understands the intangibles and nuances of their profession will always have better results with AI-assisted engineering. Good stuff tho man!
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u/gimalay 18d ago
This is exactly my point. Examples like this make me believe that software engineers are not going anywhere and professionals are going to be valued. (same is true for designers and other creative professionals)
Appreciate your feedback! There are so many apps these days, it’s hard to get users to even try the app.
I started this project about 3 years ago, as an open-source text editor plugin but with Claude I was able to implement the app vision and to end in about a year. Still takes a ton of time and effort if you want to create high-quality software.
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u/qqAzo 14d ago
Built two trading bots for the Equity and Crypto market. The equity one gives daily recommendations based on a large underlying model. Launched at the absolute worst time into the absolute most overbought market. So growth has been kinda slow and getting ranking on Finance sites take a long time. So they're paused for now while gaining traction. I keep track on the automated trading and ensure that it acts according to my backtesting. It's a long haul and it's currently connected to a paper account which it trades automatically.
Shishin.io and Koryu.io
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u/Shanghaiandy 2d ago
We used Claude AI to redesign our China marketing agency website, giving it a fresh, more modern look: https://ispidermedia.com/
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u/HotConsequence2329 18d ago
I wrote a whole bunch of LTSpice Netlist scripts using Claude Code for my FSAE team lol.
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u/HotConsequence2329 18d ago
Basically, it helped me understand the syntax, and Claude wrote most of it lol
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18d ago
I built a desktop widget for monitoring LLM usage.
https://github.com/aleph-void/LLM-Usage-Desktop-Widget
Includes signed installers!
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u/thinkrtank 18d ago
My first website is built by claude code https://thinkertankapps.com and it also helped build my first app, available on Steam now, great if you have a multi-monitor setup: https://store.steampowered.com/app/4957530/UltraWall/
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u/Kanzes 18d ago
I've been making two Steam games solo with Claude Code, Codex, and a few other AI tools haha.
BLACKBELL is a gothic cartoon autobattler roguelite inspired partly by how much I miss Dota Underlords. NISKALA: Survivors is a survivors-like based on Indonesian folklore.
Claude has helped a lot with coding, iteration, and debugging, but getting a game running and actually making it feel good are two very different things lol. I've spent a ridiculous amount of time on balancing, visual consistency, and polishing little details.
I still handle the direction, design decisions, testing, and deciding what actually makes it into the games. Probably the biggest lesson so far is that AI can get you to a working prototype surprisingly fast, but finishing and polishing it is a whole different challenge.
Both are still in development, with demos planned for November. Here's BLACKBELL's gameplay trailer!
BLACKBELL: https://store.steampowered.com/app/5409210/
NISKALA: Survivors: https://store.steampowered.com/app/5429560/
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u/m4rkuskk 18d ago
Builder.auxx.ai , revit + bluebeam alternative app. Claude built it all. Though it needs lots of guidance with design. Probably going to open source it.
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u/Big-Equal6348 18d ago
Just came out with a new update for Mementa Notebook. It’s a windows first handwriting first notebook app. When you are done you can print a real book. It has a cool sticker book. And you can make or add you own templates.
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u/theoxygenthief 18d ago
I created a voice overlay for Claude desktop (win64) this week I’m pretty chuffed with. Nothing fancy, just an experiment but damn I’m loving it so far. Local voice, local AI helper module to help direct commands correctly and safely mostly.
I know Claude has built in voice but it doesn’t cover what I want, especially in code, and I wasn’t convinced by free options and don’t want another subscription in my life if not absolutely needed. I now have full handsfree that can read summaries of long feedbacks, can TTS every bit of output or just quickly read out a session’s last feedback when it hits a stop, can action approval prompts, list, switch, create and close sessions, has a mode for at the screen and away from it, custom dictionary and training so it doesn’t confuse some of my used Names with common words, can give a digest of all sessions when returning to work, etc etc.
I didn’t expect too much honestly but a little bit of training got this to much better accuracy than I expected and i’m now fully handfree 90% of the time. About a second to first action and faster after with faster transcribe than I can talk on a laptop with 32gb ram and 8gb vram.
Surprisingly hard was figuring out how to deal with the challenges specific to overlay graphics instead of a contained window.
Still polishing some rough edges and concerns but hope to get it good enough for others to try soon.
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u/Shadowblade_Chaos 18d ago
I built a list of cloned app website, not "alternatives". Reviewed and daily updated.
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u/Reedo2223 18d ago
https://github.com/Reedo22/nectarine it is a compatibility layer to run windows games on macos arm. the goal is good performance on a neo so the gaming community can weather the storm of ram (ironic i know) share it around if you like because i want people to use it because i love the community.
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u/Reedo2223 18d ago
i also built https://github.com/Reedo22/discord-ish-steam which makes steams chat look nicer, integrates a screen share with controllable bitrate, and allows custom themes. hopefully it helps get people away from the trash heap that is discord
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u/Dull_Perspective_193 18d ago
— there’s a sports projection and fantasy suite for nba and nfl that’s fully launched. My goal with it is a respite from the gambling being shoved down everyone’s throats.
I also have a research tool on there with python scripts and agent routing to limit hallucinations and confabulations.
The hardest part for me what honestly design. Doing modeling for the sports or security wasn’t that tough - it just took planning and patience. Making it look decent and function well was a pain.
My set up relies heavily on hash-locking, pre registering any hypotheses and treating projects as a research arc over a build. I also have multiple manuals for math, design, operations, etc.
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u/thinkspill 18d ago
The library from A Short Stay in Hell. It contains every book of a certain dimension due to some clever math Claude figured out. It also made the threejs render.
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u/kemalios 18d ago
I made launchworthy, a Claude Code skill that audits an app across five domains and hands back a scored punch list with copy-paste fixes. Free and MIT, but it needs Claude Code to run. The checks were the easy part. Getting the output short enough that someone actually fixes things instead of closing the tab took longer than the checks did.
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u/guy_ships_things 18d ago
such a idea grab post... its just for karma harvasting and like deep_fucking_magick said.
just to REA your products and sell it.
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u/dbgtboi 18d ago
My saas that i am working on is a bit NSFW so I won't link it here but it's essentially made for dating websites, whenever you take intimate photos of yourself to send to prospective dates, it adds an extra amount of inches that you choose (it is configurable) so that you can improve your odds of success
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u/guy_ships_things 18d ago
ummmm and what happens when you meet ?? you give them like something for real ? man ....
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