# What developers are building · 2026-09-27

## Dot to Dot Online: Play, Print & Create Puzzles

Dot to Dot Online turns a classic pencil-and-paper activity into an easy, joyful experience for home, school, and on-the-go play.

https://dottodotonline.com/

## Chunlin Cold Knowledge

Calmly learn something useless. Daily updates of trivia, cold jokes, and nonsense literature, offering humorous, oddly pointless knowledge to help you slow down.

https://cold.sylveris.top/

## Stella_project

One-click deployable personified AI chat agent for QQ groups, using a tiny context window to natively support local small and online large language models while saving cost; compatible with the Astrbot plugin ecosystem.

https://github.com/Eternal-Wanderer-Vegetable/Stella_project

## WallpaperMachine: Run Wallpaper Engine Wallpapers on Mac

Open-source macOS dynamic wallpaper app that plays Wallpaper Engine scenes, videos and web wallpapers. Features a built-in Steam Workshop browser, multi-monitor support and music-reactive effects. Built with Swift + Rust, GPL-2.0.

https://github.com/WallpaperMachine/WallpaperMachine

## GitScry: Query Git History for Code Evolution Context

Rust CLI turning local Git history into queryable answers: past similar changes, why a line or symbol exists, co-modified files, related tests, reverted approaches, regression commits, with commit, path, confidence and evidence.

https://github.com/WodenJay/GitScry

## Cairn: Turn Ebooks into Narrated Slide Decks (macOS)

Open-source macOS app turning EPUB/PDF/MOBI ebooks into narrated, subtitled slide decks with four depth levels, each stop citing its source chapter. Includes a book Q&A companion assistant;

https://github.com/jiehaoZ/Cairn

## LEEVAR Battery: AI Agent Reliability Testing That Refuses to Grade Without Evidence

MIT-licensed AI Agent reliability test battery: 6 dimensions, 18 items. Scores real agent conversations locally with any chosen model, incl. Ollama. Items lacking evidence report NOT TESTED; no grade is given.

https://github.com/forevercrab321-svg/leevar-battery

## dlook: Render Markdown, Code, Mermaid, Images, Media, and Web in the Terminal

dlook is a Rust CLI that renders Markdown, 40+ languages, Mermaid diagrams, images, audio/video, and web pages in the terminal. It supports live reload, OSC 52 copy, and is a ~9.2 MB static binary for Linux/macOS/Windows.

https://github.com/eric8810/dlook

## docs-governance: Shared Skills for Claude Code and Codex to Maintain Project Rules and Decisions

Open-source docs-governance gives Claude Code and Codex a shared set of Skills, Markdown templates and read-only audit scripts to keep project rules, path navigation, status, change history, architecture decisions, interface contracts and…

https://github.com/qshanx/docs-governance

## Prelook: Hover-to-Preview Any Link Without Leaving the Page

Browser extension that previews any link in a floating window on hover, no new tabs. Preloads links, offers selected-text search via multiple and AI engines, pinned multi-window previews, and tracking-param stripping. No data collection.

https://github.com/xrr2016/extensions

## Curated Side Hustles: AI Programming and Indie Development Case Library

Curated Side Hustles is a Chinese-language case library for AI programming and indie development, focusing on entry barriers, costs, and trial-and-error.

https://jingxuan-fuye.pages.dev/

## OmniDock: Dock Previews, Window Actions, and Shortcuts in One Mac App

A macOS desktop app combining Dock window previews, click-to-hide/show apps, window switching, per-app shortcuts, window layouts, searchable local clipboard history, a Finder context-menu extension, and menu bar icon tidying;

https://github.com/quanzhankeji/OmniDock

## CourseRaptor: Local-First Campus AI Assistant for Schedules, Grades and Notices

Local-first campus assistant: ask in natural language for schedules, grades, exams, notices, to-dos and calendar export. A 31-tool local AI agent (TypeScript, Vercel AI SDK v7, DeepSeek) runs terminal TUI, web and QQ bot.

https://github.com/Health-525/courseraptor

## Start This Task: Break Big Tasks into a Starting Action

Start This Task turns vague or oversized tasks into one concrete first action, then expands it into an editable step plan with Standard/Small/Tiny granularity, further splitting, and Focus Mode with a countdown for the current step.

https://startthistask.com/start-a-task

## ToolSide: A 34-Utility Browser Sidebar Toolbox

Browser sidebar toolbox with 34+ local tools: image compression, OCR, PDF merge, JSON formatting, Markdown preview, clipboard history, screenshot/recording, translation and AI summarization. Runs locally without tab switching.

https://lh3.googleusercontent.com/UEySDCn1b4T-f1-rDl0SbmwT6VTpHnpflGWNY9KgbKLOJ2X23hh3wec7wXUCHkrs-1ngNFLCmQcIiT_OFU2GbpoCOg=s1280-w1280-h800

## We Used This: A Graveyard for Discontinued AI Products

A digital graveyard for discontinued AI products, with 20 profiles (Cortana, Humane Ai Pin, GPT-5.3-Codex-Spark). Browse a 3D globe and tombstone forest, view launch and shutdown dates and sources, and leave memories or flowers.

https://github.com/leontloveless/dead-ai-products

## Shotnix: Free Open-Source Screenshot, Screen Recording and Video Editor for Mac

Shotnix is a free, MIT-licensed macOS menu-bar screenshot and screen-recording tool with scrolling capture, OCR, annotations, on-device subtitles, filler-word trimming and a built-in video editor. No account or cloud upload needed.

https://github.com/OMARVII/Shotnix

## DiskWise: Sandboxed Mac Disk Cleanup Without Network or Admin Rights

Sandboxed macOS disk cleaner: no network, no admin password, no helper processes. Scans ~/Library via a user-granted security-scoped bookmark, deletes only to Trash, and matches 35 built-in cache paths from JSON. SwiftUI, Apache-2.0, free.

https://github.com/DreamOfXM/diskwise

## ToolNexus: All-in-One Static Online Tools

ToolNexus is a static online toolbox with PDF, image compression, JSON/XML formatting, Cron, SEO, and calculator tools. Most processing runs locally in the browser for privacy; no sign-up or fees. Built with Next.

https://toolnexusweb.com/

## Title Case Converter: Browser-Local English Case Converter

CNVX's free browser-local English case converter supports title, sentence, upper, lower, capital, and swap case, plus APA/Chicago/AP/MLA modes. It handles multiline text, custom spellings, and plain-text copy—no sign-up or upload, no LLM.

https://titlecaseconverter.app/

## BrewReel: Open-Source Agent Skill for Vertical Promo Videos

Open-source Agent Skill turning a product brief into 1080×1920 vertical promo videos. Low-cost models like DeepSeek write only storyboard JSON; Remotion components handle layout, motion, compliance and rendering. 3 formats, bilingual.

https://github.com/Finderchangchang/brewreel

## AI Age Guesser: Fun Age Estimation from Images

FastMoro AI's AI Age Guesser lets users upload a reference image to get a fun estimated age. It is for entertainment only, not for age verification or identity checks.

https://fastmoroai.com/tools/ai-age-guesser

## Six Months Without Funding: Building Lianlian AI

Lianlian AI uses AI to help people find others. Users state needs; AI understands, matches, and connects them. It targets finding FDEs, cofounders, or domain contacts. After six months without funding, the founder manually handles matches.

https://github.com/ruanyf/weekly/issues/11954

## FCaptcha: Self-Hostable Open-Source CAPTCHA with Docker and Node.js Examples

FCaptcha is a self-hostable MIT-licensed CAPTCHA with checkbox and invisible modes; instead of image or audio puzzles it combines browser signals, interaction behavior, and proof of work to detect automation. It ships Go, Node.

https://github.com/WebDecoy/FCaptcha

## Top-Conf Figure Gallery: Searchable Paper Figure References and FigureForge

Top-Conf Figure Gallery is a searchable gallery of 3,516 curated Figure 1/teaser images from ICLR, ICML, NeurIPS, CVPR, ACL, and AAAI (2023–2026). FigureForge Beta generates editable SVG/bitmap drafts via CLIP+BM25 retrieval, browser-side.

https://github.com/qwdwqfwq/topconf-paper-figure-gallery

## jundizhou/easy-stock: A-Share AI Investment Research Workbench

Local-first desktop app for A-share retail investors: market overview, streak and sentiment-cycle analysis, AI stock reports, portfolio checks, and KOL recap collection via built-in browser agent.

https://github.com/jundizhou/easy-stock

## since-cutoff: Find outdated APIs coding agents write for your locked dependencies

Reads lockfiles, diffs each dependency's public API between the model's training-cutoff version and your pinned version via griffe, then uses basedpyright type checks to flag outdated code and write verified AGENTS.md/CLAUDE.md notes.

https://github.com/MohammadHijjawi97/since-cutoff

## OncePower: Batch File Renamer with Image/Video Preview and Drag-to-Order

Open-source Flutter+Rust desktop batch renamer/organizer for Windows/Linux: preview image thumbnails and videos, drag to set numbering order, visual rules without regex, presets, group modes, CSV/TXT import, auto-folder sorting.

https://github.com/ilgnefz/once_power

## debpalash / VoiceStudio

VoiceStudio is the open-source, fully-local ElevenLabs alternative — voice cloning, voice design, video dubbing, dictation, transcription & audiobook creation in 646 languages.

https://github.com/debpalash/VoiceStudio

## InfinityLoop1308 / PipePipe

An open-source Android app to let you browse YouTube and other services freely.

https://github.com/InfinityLoop1308/PipePipe

## vercel-labs / scriptc

TypeScript-to-Native Compiler

https://github.com/vercel-labs/scriptc

## mvschwarz / openrig

Multi-agent harness that runs Claude Code and Codex together as one system

https://github.com/mvschwarz/openrig

## willfaust / Madeira

Run x86-64 Windows PC games on jailed iOS via FEX-Emu + Wine + DXMT

https://github.com/willfaust/Madeira

## OI-wiki / OI-wiki

OI-wiki is a community wiki for Olympiad in Informatics and ICPC, collecting tutorials and references on algorithms, data structures, and math for competitive programming learners.

https://github.com/OI-wiki/OI-wiki

## whyour / qinglong

A timed task management platform supporting Python3, JavaScript, Shell, and TypeScript for creating, running, and managing scheduled script jobs.

https://github.com/whyour/qinglong

## HIllya51 / LunaTranslator

LunaTranslator is a visual novel translator for translating foreign-language visual novels, helping players read them.

https://github.com/HIllya51/LunaTranslator

## Paving-Base / APK-Installer

An Android Application Installer for Windows

https://github.com/Paving-Base/APK-Installer

## higress-group / higress

🤖 AI Gateway | AI Native API Gateway

https://github.com/higress-group/higress

## gdy666 / lucky

A public-network toolkit for routers and hosts: IPv4/IPv6 port forwarding, reverse proxy, DDNS, WOL, STUN NAT traversal, cron, ACME certificates, rclone, FTP, WebDAV and a file browser.

https://github.com/gdy666/lucky

## Cuey

AI gives you wrong answers in the same confident tone as right ones. Cuey cross-checks your AI's answer against ChatGPT, Claude, Gemini, and 30+ other models. It surfaces where they disagree and what your model missed.

https://www.producthunt.com/r/KQXSDK666ISFA3?utm_campaign=producthunt-api&utm_medium=api-v2&utm_source=Application%3A+community-pulse+%28ID%3A+298480%29

## KiwiDesk

KiwiDesk is a tiling window manager for macOS that keeps your Mac calm and organized: every window finds its place in one of seven layouts, apps open with a shortcut, and mouse users get a Space Bar they can drag windows onto.

https://www.producthunt.com/r/MLKOVEXGXQJVWE?utm_campaign=producthunt-api&utm_medium=api-v2&utm_source=Application%3A+community-pulse+%28ID%3A+298480%29

## Harmony

Harmony is an AI-native ITSM platform for IT teams. Instead of bolting a chatbot onto a ticketing tool, we built the helpdesk around AI agents: employees ask in Slack or Teams, and 100+ production-ready agents handle password resets, app a…

https://www.producthunt.com/r/NNMZDIS3NQH7H7?utm_campaign=producthunt-api&utm_medium=api-v2&utm_source=Application%3A+community-pulse+%28ID%3A+298480%29

## Clicks Communicator

Clicks Communicator is a compact Android 17 phone built around a physical keyboard and a home screen for conversations.

https://www.producthunt.com/r/27XWJYYEJSFQFE?utm_campaign=producthunt-api&utm_medium=api-v2&utm_source=Application%3A+community-pulse+%28ID%3A+298480%29

## Humalike x GTA RP

A new roleplay experience. Build characters and entire AI societies with memory, personality and voice that recognize players, form relationships and react to everything around them. Live on Poland's largest roleplay server.

https://www.producthunt.com/r/V63RWUYZIRKDTC?utm_campaign=producthunt-api&utm_medium=api-v2&utm_source=Application%3A+community-pulse+%28ID%3A+298480%29

## Superhuman Go

Go works inside Gmail, Slack, your docs, and your browser nudging better phrasing, drafting replies that sound like you, and prepping meetings before you think to. Add no-code agents that run on their own schedule. Free to start.

https://www.producthunt.com/r/XBSELBXBOG2RGP?utm_campaign=producthunt-api&utm_medium=api-v2&utm_source=Application%3A+community-pulse+%28ID%3A+298480%29

## GPT-6 Sol & Luna

OpenAI expands the GPT-6 family with Sol and Luna with faster, cheaper models trained like Astra.

https://www.producthunt.com/r/TYGMCTMYJRKMMV?utm_campaign=producthunt-api&utm_medium=api-v2&utm_source=Application%3A+community-pulse+%28ID%3A+298480%29

## Reladraw – A diagram language where you decide where to place things

I love making diagrams to help understand, plan, etc. However, the options are (A) auto-placement languages like Mermaid or Graphviz (which don't let me decide how the diagram looks), or (B) software like Draw.

https://github.com/reladraw/reladraw

## TinyAIArena watch AI agents battle it out

Did you ever click on an “AI Arena” expecting glorious battle and instead get a boring benchmark? If so, this project is for you: proper life-or-death fights between four models on a picturesque 8×8 grid. May the most intelligent one win!

https://tinyaiarena.com/

## Building a Markdown editor for Mac, iOS and web

I've spent the last 10 months building Beauty: a local, powerful greco-roman Markdown editor where the page looks finished while you type.

https://www.markdown.beauty/

## Spivak's Calculus formalized in Lean 4 – every theorem, every problem

Michael Spivak's Calculus formalized in Lean 4: every theorem and every problem of all 30 chapters and 9 appendices, in both the 3rd and 4th editions

https://github.com/stormj-UH/spivak-lean

## Trail – new kind of logic game

One line. Every tile. A generated logic puzzle that gets a little harder every level.

https://trail.franzai.com/

## LightCloud – A cloud console organised like file system

Hi HN, Light Cloud is a hosting platform where the unit of organisation is a folder. A folder holds everything project needs: frontend, API, database, env variables, preview per branch.

https://www.light-cloud.com/

## Kosh - Stop Your Bookmarks Becoming a Cemetery

No project description yet.

https://chromewebstore.google.com/detail/kosh-bookmark-manager/meldjdfnfgefeoegccphimkmgmeamcce

## Jev predicting your life choices

Built a simple quiz to check whether AI (Jev) can simply learn and predict life choices. Experiment)

https://quiz.seek.ws/

## Blender Copilot

Deepseek generated Blender harness in 7USD. I wanted to remake my 6DoF spaceship flying prototype. What I did not want to do was model the spaceship. Manually. In Blender.

https://github.com/XEonAX/blender-copilot

## Tokken – a browser fighting game where AI models fight and HP is tokens

Like Tekken, but Tokens. Created with Opus 5.5 today - was a lot of fun. Source (MIT): https://github.com/lexdoudkin/tokken

https://tokken.win/

## I built an AR App that overlays makeup tutorials live on your face

Hi Hacker News, I built UR Artist: AR Makeup Studio after seeing my girlfriend struggling to apply makeup outside with her tiny mirror and bad lighting.

https://urartist.app/

## PeerTalk.ai - Let your agent talk to a friend's agent

Little experiment I've been cooking up. I often find myself wanting to do one of the following: - Get my agent and a someone else's agent to agree on something, after we'

https://peertalk.ai/

## Read while you listen to your Audiobooks

I am a product manager, and in the last few months I got laid off, coupled with a disruptive job market. Due to this, I used to scroll short-form content a lot;

https://hushbook.app/

## MacUp – keep CLI tools up to date from the menu bar

Free macOS menu bar app that finds every package manager on your Mac — Homebrew, npm, pip, Cargo and 15 more — and updates what is outdated in one click.

https://macup.patriciobcs.com/

## Shipwithmuse.live – a catalog of things people built with Muse

Real Meta Muse use cases and examples: a hand-sorted catalog of agent errands, connectors, Muse Code projects, games and local Glimmer runs, each sourced.

https://shipwithmuse.live/

## Kling 4.0 AI Video Model Aggregator

Web tool aggregating Kling and other AI video models; select a model and generate videos in one page. Kling 4.0 integration is planned, with ongoing updates; email signup gives limited free credits, first come first served.

https://www.v2ex.com/t/1245101

## Patrick: Chrome-like Bookmark Star for Safari

Patrick is an open-source Safari extension for macOS that adds a Chrome-style bookmark star. It shows if the current page is bookmarked and lets you add or remove bookmarks, unlike paid App Store extensions limited by sandboxing.

https://github.com/quietcodeapp/patrick-app

## 做了一个工具网站，平常自己用，大家有需要的可以来玩。 https://tools.ilovemy.com.cn/

No project description yet.

https://www.v2ex.com/t/1245096

## Pairing Jev with AI Voice Input to Skip Needless LLM Polishing

Places Jev as a pre-filter in an AI voice input method: sentences needing no polishing pass through directly, skipping the LLM round trip and cutting latency by nearly 1 second on some short sentences without hurting long-sentence polishin…

https://www.v2ex.com/t/1245093

## Local Audio/Video to Timestamped Transcripts

Web app transcribes local audio/video into timestamped text with 99 languages, playback sync, and TXT/SRT export. Supports MP3, MP4, M4A, WAV, WEBM and more. For podcasts, interviews, lectures, meetings, subtitles; no YouTube URL import.

https://www.v2ex.com/t/1245086

## Seeking Feedback on Three Video Player App Icons

Three app icon concepts for a video player app, created with Claude design, seeking community feedback on the best option and asking which skills can design icons.

https://www.v2ex.com/t/1245085

## WeChat to Markdown (wx2md): Chrome extension for exporting WeChat articles to Markdown

wx2md: Chrome extension exports WeChat articles to local Markdown, optionally with image ZIP. It parses locally, offers one-click export, and integrates with Obsidian, SiYuan, Typora, and VS Code. Current page only; no login/paywall bypass.

https://github.com/wangshan9870/wechat-to-markdown

## Hotel Lobby AI Viral Video Generation

A tool for generating the viral Hotel Lobby AI-style quirky videos recently trending on social media.

https://www.v2ex.com/t/1245072

## Opus5.5 Voice-Controlled Magic Game

A voice-controlled magic mini-game by Opus5.5. In speech-recognition mode, saying a sound like “操” casts a spell; in voice-control mode, any speech casts a spell; tapping the screen also casts a spell.

https://www.v2ex.com/t/1245069

## Ad-Free Fancy Text Generator with 42+ Unicode Styles

Clean, ad-free fancy text generator with 42+ calligraphy, handwriting, and Gothic Unicode styles, live preview, click-to-copy. Includes Fancy and Glitch Text generators. Copies Unicode for Instagram, TikTok, WhatsApp; no signup/download.

https://www.v2ex.com/t/1245067