Sep 21 – 27, 2026 · Edition W39
What Reddit's builders are making this week
2,385 new projects from 9 builder subreddits, sorted into 200 groups and 23 themes. Fastest riser: AI 3D model generation ▲ +106%.
The heatmap
Each square is one theme in one week, compared with that theme's own 12-week average. Hover or tap a square for the numbers; click it to see that week's projects.
Themes with fewer than 600 projects in 12 weeks are faded and marked "low sample", because small counts swing hard. Themes under 50 projects are left off the map.
Rising
Share of projects, last 4 weeks vs the 8 before. Groups with 40+ projects in the last 4 weeks.
- AI 3D model generation▲ +106% 57 in 4w
- AI meeting transcription and notes▲ +56% 40 in 4w
- Freelance client management tools▲ +51% 56 in 4w
- Photo library organizers and sharing▲ +41% 89 in 4w
- Browser strategy and simulation games▲ +39% 44 in 4w
- Desktop window and dock utilities▲ +37% 75 in 4w
- AI short video generators▲ +36% 75 in 4w
- Social media feed tools▲ +32% 62 in 4w
Cooling
Same comparison, biggest drops. Same 40-project minimum.
- Personal journaling apps▼ -36% 42 in 4w
- AI chat organizers and prompt libraries▼ -30% 64 in 4w
- Sports fan games and tools▼ -29% 49 in 4w
- AI coding agent tooling▼ -28% 58 in 4w
- Startup idea validation tools▼ -22% 44 in 4w
- Event planning and scheduling tools▼ -22% 48 in 4w
Most built this week
| Group | Projects | vs prior 4 wks |
|---|---|---|
| Gym workout trackers | 30 | ▼ -21% |
| Photo library organizers and sharing | 30 | ▲ +44% |
| Personal to-do and daily planners | 27 | ▼ -22% |
| AI agent orchestration platforms | 27 | ▲ +38% |
| Language learning apps | 27 | ▲ +85% |
| AI image generation and creative canvases | 26 | ▲ +40% |
| Personal budgeting and expense trackers | 26 | +12% |
| AI short video generators | 26 | ▲ +125% |
| Habit tracker apps | 24 | +2% |
| AI text rewriting tools | 24 | ▲ +44% |
| Multi-agent coding workspaces | 23 | +1% |
| AI and desktop video editors | 23 | +3% |
By theme
Creative media generation and editing
AI and manual tools for creating and editing images, video, 3D, music, audio, subtitles, stories and photo libraries.
- Photo library organizers and sharing30
- AI image generation and creative canvases26
- AI short video generators26
- AI and desktop video editors23
- Audio playback and sound tools19
- Music practice and creation tools14
- AI 3D model generation13
- Photo and image editors12
- AI music and song generation9
- AI story generation and fiction writing8
- Video subtitle generation and translation6
- Renders an interactive, procedurally animated koi pond that runs in the browser.“I made an Interactive, procedurally animated koi pond that runs in your browser.”
- Spiralist — Redraws a photo as a single continuous line in several drawing styles and exports the result as an image, a plotter-ready SVG, or a timelapse video.“I asked Opus 5.5 to build a site that turns any photo into one-line art. It also films the line being drawn.”
- INKRALLY — Sells print-on-demand canvas art through a custom online store with AI-generated artwork and AI-run Meta ads.“GPT-6 Astra made me an ecom brand, built the ad campaigns, and got its first order”
Games and gaming tools
Casual, puzzle, word, trivia, strategy, multiplayer and indie games plus trackers and tools for gamers and collectors.
- Multiplayer browser games & matchmaking20
- Online card, board & party games18
- Casual browser games18
- Daily logic puzzle games16
- Trivia and quiz games15
- Casual mobile arcade games11
- Video game backlog trackers8
- Browser strategy and simulation games8
- AI-assisted game creation7
- Tabletop RPG and RPG games7
- Browser racing and driving games6
- Trading card collection trackers5
- Chess training and analysis tools4
- Daily word puzzle games2
- Indie video game showcases2
- Geography guessing and quiz games2
- Rubberhouse platformer — Lets players run and jump through a 2D side-scrolling platformer with three scenarios, three bosses, and online co-op multiplayer.“Just finished my vibe coded AI platformer”
- Little Habitats — Lets players design cozy island habitats by placing tiles, attracting animals, and discovering landmarks and wonders, with shareable island URLs.“Opus 5.5 probably is the model that has better taste than most models. I'm blown away.”
- Lets a person with limited mobility play games that are built with AI assistance and controlled by two switches activated by head turns.“Using AI to build games for my brother who can only use two switches by turning his head”
Personal productivity and notes
To-do lists, note-taking, calendars, reminders, focus timers, meeting notes and visual thinking tools for organizing work and life.
- Personal to-do and daily planners27
- Personal note-taking apps21
- Project management tools16
- AI meeting transcription and notes16
- Pomodoro focus timers15
- Personal reminder and nudge apps13
- Personal calendar apps12
- Visual canvases and diagram generators9
- Markdown editors and viewers7
- AI voice note apps1
- Pen Friend — Syncs Mac screenshots onto an iPad handwriting notebook and answers handwritten questions with AI in ink.“I take notes by hand on an iPad while I work on a Mac. Nothing kept me on the page, so I built this.”
- Notification History Manager — Stores Android notifications, including dismissed ones, and lets users search them and trigger automated actions based on rules.“I built an Android app that remembers your notifications, now 1,000+ installs and 30+ paid users”
- Nonlinear — Tracks software issues, projects, cycles, and documents for teams, with board and timeline views and GitHub and Slack integration.“What it actually costs to run a Linear-style issue tracker for a small team (I built one to find out)”
AI assistants, chat and model tools
Tools for organizing AI chats, comparing and routing LLMs, AI research, companions, desktop assistants and AI media detection.
- AI tool directories and usage trackers20
- AI companion character chat20
- AI chat organizers and prompt libraries19
- LLM gateways and model comparison13
- Desktop AI assistants13
- AI browser automation extensions12
- AI research and source-cited answers11
- AI image detection and photo analysis11
- Multi-AI decision debate tools9
- Recognizes a user's hand drawing by scanning it and links local data to it so later scans show that data.“i made an app that turns any drawing into a qr code”
- GPU Router — Routes LLM API requests across multiple discounted inference providers behind a single endpoint, choosing the cheapest provider for each request.“I built Openrouter, except you save 88% on GPT 6 Astra, 74% on Fable 5.1, 98% on GLM 5.3, and 400+ more models”
- KinScan — Scans faces in photos to produce a kinship or resemblance result.“9 months building my app — finally got paying customers, but sales are inconsistent. What am I missing?”
Personal finance and investing
Budgeting, expense and subscription tracking, bill splitting, pay tracking, trading journals, stock research and crypto tools.
- Personal budgeting and expense trackers26
- Retail trading tools and journals13
- Personal finance planners and trackers12
- Subscription and recurring charge trackers12
- AI stock research tools11
- Shift, hours and pay trackers11
- Crypto wallets and payment tools9
- Receipt scanning & expense tracking7
- Investment portfolio trackers6
- SEC filing stock research tools6
- Crypto trading and portfolio tools5
- Group expense splitting apps5
- CriptoBid — Ranks user-submitted URLs publicly by bid amount paid in crypto, with on-chain payment verification.“I built a ranking where visibility is bought with USDT, not decided by an algorithm”
- Recovers failed subscription payments for businesses that bill through Stripe.“6 months, 2 paying customers, trying to figure out why nobody else signs up”
- Folient — Teaches personal finance and investing through short daily lessons, quizzes, and streaks.“I built a Duolingo-style app to learn investing in 60 sec a day — built it solo, would love brutally honest feedback”
Marketing, SEO and sales
Tools for content generation, social scheduling, SEO and AI search visibility, ads, outbound sales, email, app store optimization and analytics.
- Website audit and monitoring tools15
- Web and SaaS analytics dashboards15
- AI search visibility trackers13
- Email inbox and infrastructure tools10
- Reddit marketing and lead finding9
- AI outbound sales prospecting8
- SEO audit tools8
- AI marketing content generators8
- AI social media schedulers6
- AI email writing and outreach tools6
- App store optimization tools6
- Local business lead finders5
- App Store screenshot generators5
- LinkedIn outreach and content tools5
- AI paid ads management tools3
- Reddibee — Lets an AI agent read Reddit, Hacker News and X posts and answer questions with counts and links to threads.“I built a Reddit MCP so my AI agent can read subreddits for me”
- SendRaven — Sends bulk and transactional email through a self-hosted setup that consolidates multiple products' sending onto one account.“We cut a little over $3,000/month of SaaS this summer. The replacement tools were never the hard part.”
- Generates a promotional video showing a phone app's screens with pop-out cards and glow effects.“Made only with Opus 5.5”
AI coding agents and agent orchestration
Tools for running, monitoring, orchestrating, securing and giving memory to AI coding agents and multi-agent systems.
- AI agent orchestration platforms27
- Multi-agent coding workspaces23
- Codebase analysis for AI-written code13
- AI coding agent tooling12
- AI agent security guardrails12
- AI coding agents for Git repos9
- Claude Code session monitors8
- Terminal workspaces for AI agents7
- Persistent memory for AI agents4
- MCP server tooling2
- sanity — Renders every file of a repository on one zoomable canvas, visualizes changes and scrolls through git history, and exports the view as an mp4.“watch your project evolve over time”
- jeview — Visualizes the decisions made by Jev through a local gateway to its API.“I built a free Jev visualizer after burning 5bn tokens in three days”
- Runs an automated local coding agent on a personal GPU rig that works through coding tasks unattended.“My GPU forced me to sleep on the couch”
Desktop and device utilities
Window managers, clipboard tools, file cleanup, dictation, screen capture, input remapping, wallpapers and device dashboards for power users.
- Desktop window and dock utilities23
- Local voice dictation apps19
- Android launchers and phone utilities16
- Desktop file organizers and cleanup13
- Screen recording and screenshot tools12
- Desktop pet companions12
- Device monitors and ambient displays10
- Alternative computer input & remote control5
- Wallpaper apps and live wallpapers4
- Clipboard history managers2
- Read PDF Out Loud — Reads PDF documents aloud while skipping headers, citations, and page numbers and speaking math by meaning.“I built a PDF reader that reads research papers like a person would: no page numbers, no "[12]"s, and math you can follow by ear!”
- 1bit — Turns an iPhone into a minimalist dumb phone experience with its own camera, games, music player, podcasts, RSS reader, and restricted web browser.“I made a dumb phone app that’s a fun nostalgia filled digital detox”
- Mole for Mac — Scans a Mac for junk files and lets the user review each path and size before removing them, sending ordinary removals to the Trash.“[Mole] - Mac cleaner I shipped as a CLI, then as a GUI after users asked”
Health, fitness and wellness
Workout, nutrition, medication, mood, journaling, mental wellness, spiritual and astrology apps for personal wellbeing.
- Gym workout trackers30
- Mental wellness and calm apps14
- Personal health and medication trackers13
- Personal journaling apps12
- All-in-one fitness and health trackers12
- AI calorie and nutrition trackers11
- Scripture and prayer apps6
- AI astrology and divination readings4
- Mood trackers and personality quizzes3
- Drink logging and cocktail apps3
- Repchek — Watches a user lift through a propped-up phone camera, flags form breaks, and counts reps and sets.“I built an app that tells me when my lifting form is wrong”
- GymMaxx — Tracks gym workouts for users.““Workout tracker apps are too saturated to make money from””
- Brevity — Shows a grid of lived weeks against a life expectancy and offers one daily challenge marked done from an iOS widget.“I read Four Thousand Weeks and realised my weeks all look the same and built a widget about it”
File, document and everyday web utilities
Privacy-friendly browser tools for PDFs, image conversion, documents, forms, QR codes, file sharing, vaults, links and calculators.
- Browser-based PDF toolkits16
- Browser-based utility tool collections13
- Browser image compressors and converters13
- File sharing and transfer tools12
- URL shorteners and link-in-bio pages11
- Online form builders and autofill8
- Document scanning and processing tools7
- Encrypted vaults and password managers7
- Pricing and cost calculators7
- Online calculators and math tools5
- QR code generators and scanners2
- Vectorgram — Converts raster images such as PNG, JPG, WebP and BMP into editable SVG vector files.“I built an online image vectorizer with gradient and batch support”
- GridPDF — Provides 28 PDF tools such as merge, split, compress, and Word to PDF that run entirely in the browser without uploading files.“> I built a free, offline, privacy-first SmallPDF alternative after my sister was charged 9usd to compress her CV - no backend, all client-side”
- utily.ai — Hosts a directory of over 7,000 web-based utility tools, many running directly in the browser.“I spent 2 years building a site with 7,000+ web tools”
Home, food and lifestyle
Family organizers, home inventory, meal planning, recipes, home design, pets, plants, wardrobes, real estate, shopping and dining.
- Shared family and household organizers12
- Digital wardrobe and virtual try-on12
- Price trackers and comparison tools10
- Home, cabinet and construction design tools10
- Home inventory and maintenance trackers10
- Meal planners with grocery lists9
- Pet health and care trackers9
- Recipe managers and generators9
- Restaurant discovery and group picking9
- Real estate & rental tools8
- Plant identification and care apps2
- Fugleramme — Identifies birds heard in a garden with machine learning and draws them as natural-history illustrations on an e-ink display.“My bird-related hobby project became the #1 Hacker News post this month, and now I'm being flown to China to showcase it”
- buyandrent — Analyzes a French rental property to estimate its profitability, recommend a tax regime, describe the neighborhood, and produce a report for a bank.“4 months after launch, 0 customers. What would you have done differently for marketing?”
- Lists food-related businesses in a specific niche on a directory website, with data gathered from Google Maps.“I Scaled My Directory To ~5000 Visitors a Month. Ask Me Questions”
Digital wellbeing and habits
App and site blockers, social feed reshapers, habit trackers and wake-up alarms that help people control screen time and build routines.
- Habit tracker apps24
- YouTube browser extensions22
- Social media feed tools22
- Challenge-to-dismiss alarm apps13
- Phone app blockers8
- Distracting website blockers5
- In Sight, In Mind — Combines a physical analog habit-tracking system with a digital companion to track daily habits.“In Sight, In Mind: Combining the best of analog with digital”
- Lets creators enter short videos into a public, paid leaderboard where viewers vote and rankings are visible to everyone.“I'm building a public leaderboard where short videos compete for ranks. Would you post yours?”
- Habitic — Tracks daily habits offline with streaks and progress history, storing all data on the device.“[iOS] [First 200 Users — Lifetime Access] Habitic: Offline Habit Tracker — Build habits that build you”
Travel, maps and outdoors
Trip planners, place discovery maps, GPS tracking, interactive globes, sky trackers, weather and car ownership apps.
- Travel and trip planners22
- Map-based place discovery apps19
- Car ownership and maintenance apps13
- GPS trip and ride tracking11
- Interactive world maps and globes9
- Consumer weather apps9
- Sky, space and flight trackers5
- BarHop — Plans a walking route between nearby bars and lets group members track each other live during a night out.“I built a bar crawl route planner. 30 days of analytics later, my assumptions were wrong.”
- RomanCivilizations.com — Lets users explore an interactive world map of ancient civilizations, with timelines of events for each civilization and a cross-time sequence of 106 linked historical events.“My 9yo nephew loves learning about ancient history, so I built him an interactive global atlas of 100+ ancient civilizations. His name is Roman, so I call it... RomanCivilizations.com :)”
- WanderCard — Tracks visited countries, US states, and national parks on interactive maps and exports shareable image cards of progress.“I built WanderCard.app – a free, interactive travel tracker & digital passport for Countries, US States, and all 63 National Parks (with exportable cards)”
Indie maker launch and validation
Platforms for validating ideas, launching and promoting side projects, building websites and exchanging feedback and testing.
- Website builders and portfolios22
- Startup promotion and creator deals16
- Indie project showcase and launch platforms15
- Product feedback and testimonial tools13
- Startup idea validation tools10
- Indie app testing exchanges10
- The Zero Dollar Club — Lists public projects from founders who have a live product but no sales yet, and removes them once they make a sale.“Someone joked that 0 founders need an official club so I actually made it lol”
- Lets builders create and sell e-commerce websites with page building, product and subscription sales, orders and refunds, support tickets, and AI content generation.“7 years building an e-commerce website builder solo. Live since 2020, and I still can't stop adding features. When is it enough?”
- ScoutForge — Lets indie app developers test each other's apps in exchange for credits and displays the resulting feedback on app pages.“I built a way for indie devs to get real users testing their app by testing each other's”
Entertainment, music and news consumption
Apps for discovering and tracking music, movies, TV, podcasts, radio, livestreams and curated news digests.
- Music discovery and sharing apps18
- TV, movie and anime trackers15
- Local music and radio players11
- AI news aggregators and digests11
- Movie & TV recommendation trackers8
- Online video downloaders and players8
- Livestream viewing and streamer tools6
- AI news aggregators and digests5
- Podcast apps and AI tools2
- Internet radio players1
- Edits IPTV playlists without needing a PC left running 24/7.“Reddit is unbelievable”
- SpotLight — Plays Spotify music natively through a lightweight desktop client with synced lyrics and system media controls.“I got tired of Spotify eating 1GB of RAM in the background, so I built a native, ultra-lightweight client in Rust (uses ~60MB RAM)”
- Synema — Helps groups of people pick a movie to watch together by matching their preferences.“Is this seriously how App Store review works?”
Developer tools and infrastructure
Deployment platforms, databases, monitoring, security scanners, app builders and low-level tinkering projects for developers.
- Security scanners for AI-built apps14
- UI design extraction & AI design tools13
- Self-hosted app deployment & dev infra11
- AI prompt-to-app builders10
- Uptime and API monitoring9
- GitHub profile and repo tools8
- Hobby languages and operating systems5
- Database clients and SQL tools5
- Network diagnostics and VPN tools5
- Domain name search tools4
- Builds business intelligence dashboards and answers data questions through any LLM tool, as an alternative to Power BI and Tableau.“Giving up after a year”
- HorizonX — Provides a subscription platform of UI concepts, components and design experiments drawn from a designer's archive.“I vibe coded a product with almost no coding experience. 2 months later it changed my life”
- KeshOS — Provides a from-scratch 64-bit desktop operating system with a custom kernel, window compositor and GUI intended to run on older hardware.“Building an independent 64-bit desktop OS from scratch — KeshOS progress & architecture”
Small business and freelance operations
CRMs, invoicing, client management, ecommerce, AI receptionists, WhatsApp automation, marketplaces and reselling tools for small businesses.
- Freelance client management tools21
- SMB operations and SaaS infrastructure13
- Resale marketplace listing tools10
- Shopify and ecommerce merchant tools10
- Freelancer invoice generators9
- AI phone receptionists & voice agents9
- WhatsApp business automation tools7
- Freelance and local gig marketplaces5
- Handmade crafts and physical goods0
- Scout — Lets an AI agent handle sales and support chats for Shopify and Instagram sellers using tools for products, orders, customers and inventory.“Our first customer found us on Google, left after 3 days, then came back and paid”
- ShipOnClick — Provides a Next.js SaaS starter codebase with auth, payments, database, and end-to-end tests, structured for AI coding agents to customize.“Are SaaS Starter Kits pointless in the era of AI coding agents? I don't think so.”
- Manages tool and equipment hiring, rental and sales for businesses.“Struggling to Acquire my first customer”
Social networks, messaging and dating
Alternative social networks, encrypted and anonymous chat, dating and couples apps, greeting gifts, polls and event planning.
- Alternative and anonymous social networks20
- Event planning and scheduling tools13
- Personalized digital greeting gifts13
- Private encrypted messaging apps13
- Dating and couples apps11
- Anonymous and community chat apps6
- Opinion polls and civic tech6
- OddsRabbit — Hosts Reddit-style community discussions focused on hobbies and interests, with ads that fund user-chosen charities.“I made a new social platform inspired by Reddit. It's hit its first milestone of 10,000 users and giving back 10,000+ meals to kids in need.”
- Wonderday — Delivers motivational quotes and self-growth thoughts in a daily app experience.“I'm building a motivation app, but I'm realizing the hard part is giving people a reason to come back tomorrow”
- Long Distance 2.0 — Lets couples send doodles, photos, notes, quizzes and countdowns to each other's iOS home screen widgets.“7 months ago I shared the app I built for my girlfriend here. Your comments basically shaped 2.0”
Education and learning
AI tutors, flashcards, language learning, video summarizers and reading tools for students and self-learners.
- Language learning apps27
- AI study and tutoring apps19
- Ebook readers and book trackers19
- YouTube AI summarizers & note-takers8
- AI flashcard study tools8
- A1-A2 French Course — Offers a free beginner French course covering A1 and A2 level lessons.“Post your vibe coding project below”
- Lumabook — Shows animated scenes alongside book text as the reader progresses through a story.“I’m building a reading app where books come alive as you read”
- Helps the user learn Japanese through a mobile-style app design generated quickly with an AI design tool.“Going to Japan soon so I vibe designed an app to learn japanese”
Browser extensions and web reading
Extensions for managing tabs and bookmarks, clipping and summarizing pages, rewriting text and tweaking the browsing experience.
- AI text rewriting tools24
- Browser tab managers15
- Browser reading and clipping tools13
- Bookmark managers11
- Browser extensions and utilities11
- jgrep — Filters lines of text by semantic meaning using a natural-language description instead of a literal pattern.“jgrep: grep, but the pattern is a description. Filters lines by meaning!”
- Text Expander & Autofill — Expands text shortcuts into saved snippets and autofills form fields in the browser.“Thanks, Claude, for the promo video 🙏”
- Tracks time spent on each website in Chrome and shows where browsing time goes.“I just hit 100 users with a Chrome extension I built myself 😭”
Careers and job search
Job search assistants, resume tailoring, interview and conversation practice, coding interview prep and builder networking.
- AI job search assistants20
- AI resume tailoring tools8
- AI conversation practice coaches7
- Coding interview practice tools4
- Founder and builder matchmaking3
- AI mock interview practice2
- Plans a social media platform that connects builders and founders for building in public, with a waitlist currently collecting signups.“should i build a waitlist before building?”
- JobPrime — Scans live job listings across many countries and surfaces roles where the user's background scores as a top match.“I am tired of applying to jobs (2026 job market!!!), I don't know where my application goes to. Took me 2 months (I am dumb) to built an engine that only surfaces jobs where I am actually a top match.”
- PocketResume — Rewrites resume bullets to match a job posting's keywords and drafts cover letters and application form answers using an AI key.“I built a free Chrome extension that rewrites your CV for every job posting in one click”
Sports fan apps
Sports management sims, trivia, prediction pools and live score tools for fans of football and other sports.
- Runs games for sports clubs and handles the club's game administration.“6 months in, stuck at ~$100 MRR. Where would you focus?”
- Lets football fans make predictions on matches across 249 leagues and earn points for correct answers.“I spent 3 months building a football prediction game… and almost nobody showed up.”
- tomorrowticket — Lets users publish dated predictions for a chosen year up to 2100 and checks them when that year arrives.“I made a public board of predictions about the future.”
Miscellaneous
A catch-all of loosely related or undescribed side projects that don't fit a clear category.
Didn't fit any group
163 projects this week were too far from every group. New kinds of projects show up here first.
- Pixady — Runs scheduled live video stages where hosts book a slot, broadcast to viewers, and hand off to the next host.“I made an open mic for the internet: book a slot, go live, then hand the stage to the next person”
- ContentCam — Records a scene in portrait and landscape orientations at the same time so creators don't have to film it twice.“UPDATE: the camera app that films portrait and landscape at the same time can now take photos in both formats + use your front and back cameras together!”
- OpenWindows Kernel — Provides a custom non-POSIX 64-bit kernel with preemptive round-robin scheduling in usermode, page fault handling and per-process memory isolation, plus a custom vector font format and driver infrastructure.“To the bro who said "I don't give a fuck. I'm working.": You saved my kernel project.”
- f-roof — Provides a single-layer multi-functional roof that produces food and energy.“How programmers build roofs”
- Getlead — Takes a company website and runs an end-to-end cold outreach pipeline: finds ICP leads, researches them, qualifies them, personalizes emails, and sends them.“I sent 592,318 cold emails. Here are the actual results.”