Show HN Daily Selection (2025-07-09)
- OffChess – Offline chess puzzles app
- A rain Pomodoro with brown noise, ASMR, and Middle Eastern music
- Jukebox – Free, Open Source Group Playlist with Fair Queueing
- I built a tool to solve window management
- Sumble – knowledge graph for GTM data – query tech stack, key projects
- Track the AI-generated code in your repo
- Dashboard tracking all GitHub PRs and analyzing Code Agent activity
- ModelFetch – Deploy MCP servers anywhere TypeScript/JavaScript runs
- PulseTimer – A clean, customizable work/break timer you can self-host
- Free Unlimited Photo Enhancer, Background Remover, AI Image Gen, etc.
- The Ordeal Visualizer
- Trying to eat better? I built a nutrional assistant
- HireIndex – A Searchable Directory for Who Wants to Be Hired on HN
- I built a single API to post on all social platforms
- Gore – A Doom Engine Port in Go
OffChess – Offline chess puzzles app [Entertainment]
290 points, 111 comments
OffChess is an offline chess puzzles app for iPhone/Android with over 100,000 puzzles and no internet requirement.
- Fully offline functionality with no internet needed
- Over 100,000 chess puzzles categorized by type (mate in X, tactics, openings)
- Light rating system to track performance
- No accounts, tracking, ads, or subscriptions
- Available for both iOS and Android
Discussion Link, Original Link
A rain Pomodoro with brown noise, ASMR, and Middle Eastern music [Productivity]
39 points, 25 comments
A Pomodoro timer with immersive rain, brown noise, ASMR, and Middle Eastern music for better focus.
- Combines rain, brown noise, soft ASMR, and Middle Eastern music
- Features animated backgrounds to avoid a blank screen
- Runs fully in the browser with no accounts or tracking
- Simple and distraction-free—just open and focus
Discussion Link, Original Link
Jukebox – Free, Open Source Group Playlist with Fair Queueing [Audio]
89 points, 33 comments
A free, open-source group playlist app with fair queueing for collaborative music listening.
- Web-based, no accounts or installs required
- Supports YouTube links or search for instant song addition
- Round-robin song rotation ensures fair play for all participants
- Open-source (MIT license), self-hostable with Docker
- Privacy-friendly design with no tracking
- Neo-brutalist UI with drag-and-drop functionality
Discussion Link, Original Link
I built a tool to solve window management [Productivity]
45 points, 58 comments
Smart Switcher is a data-driven window management tool for Windows 10/11 that predicts and switches to your next likely window using a keyboard-driven interface.
- Uses a prediction algorithm to analyze and predict window switching patterns
- Keyboard-driven with minimal GUI for efficient workflow
- Offers override shortcuts to cycle through predicted windows
- Paid app with demo and trial versions, plus early adopter discounts
Discussion Link, Original Link
Sumble – knowledge graph for GTM data – query tech stack, key projects [Business]
76 points, 45 comments
Sumble is a knowledge graph for go-to-market teams to identify prospects by querying tech stacks, key projects, and involved personnel.
- Enables granular queries for tech stacks and projects at team or buying-group levels
- Identifies people involved in specific initiatives (e.g., GenAI, cloud migrations)
- Sources data from job posts, resumes, and company websites using fine-tuned LLMs
- Free for most functionality, with paid bulk exports
- Plans to expand data sources, offer an API, and broaden use cases beyond GTM
Discussion Link, Original Link
Track the AI-generated code in your repo [Developer Tools]
4 points, 0 comments
Track AI-generated code in your repository.
- Monitors AI-generated code contributions
- Helps maintain code quality and transparency
Discussion Link, Original Link
Dashboard tracking all GitHub PRs and analyzing Code Agent activity [Developer Tools]
7 points, 1 comments
A dashboard tracking GitHub PRs to analyze the adoption and impact of Code Agents like Codex, Copilot, and Devin.
- Analyzes over 10 million PRs, identifying trends in Code Agent usage and merge rates
- Shows Code Agents submit ~7% of all PRs but are less common in popular repos (~1–2%)
- Reveals merge rates vary widely (90%+ in low-traffic repos, <25% in popular projects)
- Highlights higher merge rates (30–50%) for agents requiring human review (e.g., Jules, Codex)
- Focuses mostly on new code additions, with few refactorings or deletions
Discussion Link, Original Link
ModelFetch – Deploy MCP servers anywhere TypeScript/JavaScript runs [Developer Tools]
4 points, 0 comments
ModelFetch enables deploying MCP servers across multiple TypeScript/JavaScript runtimes with a single handle() function.
- Works with Node.js, Bun, Deno, Cloudflare Workers, Vercel Functions, and more
- No need to learn new APIs or rewrite existing servers
- Changing runtimes requires modifying just one line of code
- Uses official MCP TypeScript SDK for better support and up-to-date implementation
Discussion Link, Original Link
PulseTimer – A clean, customizable work/break timer you can self-host [Productivity]
4 points, 1 comments
A clean, customizable, self-hostable work/break timer with no tracking or accounts required.
- Customizable work and break session durations
- Optional sound notifications
- Skip break functionality
- Session history and progress tracking
- Fully local with no accounts or tracking
- Self-hostable (Node + Express)
Discussion Link, Original Link
Free Unlimited Photo Enhancer, Background Remover, AI Image Gen, etc. [Image]
4 points, 0 comments
Free unlimited tool for photo enhancement, background removal, OCR, and AI image generation.
- Photo enhancement
- Background removal
- OCR
- Image expansion
- Image translation
- AI Image generation
Discussion Link, Original Link
The Ordeal Visualizer [Productivity]
4 points, 0 comments
A tool to visualize and manage time-blindness by tracking activities and time perception.
- Helps users visualize their time perception
- Tracks activities to improve time management
- Designed for individuals with time-blindness
Discussion Link, Original Link
Trying to eat better? I built a nutrional assistant [Health]
15 points, 34 comments
AI-powered nutritional assistant that personalizes meal plans and suggests recipes while locating grocery items.
- Personalizes meal plans and recipes
- Scrapes the internet for grocery purchasing options
- AI-driven nutritional guidance
- Pivoted from an e-commerce grocery project
Discussion Link, Original Link
HireIndex – A Searchable Directory for Who Wants to Be Hired on HN [Business]
5 points, 0 comments
A searchable directory aggregating candidates from Hacker News' "Who Wants to Be Hired" threads.
- Search by tech stack
- Scan bios, salary expectations, and contact links
- Filter by remote/on-site preferences and employment type
- Upcoming analytics on skills and hiring trends
Discussion Link, Original Link
I built a single API to post on all social platforms [Developer Tools]
6 points, 6 comments
A unified API for posting across multiple social media platforms with developer-friendly features.
- Supports TikTok, X, Facebook, Instagram, YouTube, LinkedIn, Pinterest, Bluesky, and Threads
- Uses your own app credentials for data control
- No account connection limits and pay-per-post pricing
- Single POST request replaces multiple platform-specific calls
- Cascading configs for global or platform-specific post settings
- Free tier available with volume discounts for high usage
Discussion Link, Original Link
Gore – A Doom Engine Port in Go [Developer Tools]
8 points, 1 comments
A Go-based port of the classic Doom engine, designed for cross-platform compatibility and readability.
- Written in pure Go with minimal dependencies (no SDL or CGO)
- Loads original Doom WAD files
- Includes a software renderer and a terminal-based renderer
- Aims for clean, hackable, and portable code
- Still refining to remove unsafe code and improve functionality