Show HN Daily Selection (2025-07-18)
- Easy alternative to giflib – header-only decoder in C
- FavBox is a local-firs browser extension for bookmark management
- Object database for LLMs that persists across chats (MCP server)
- I built a cute focus timer where you can grow an infinite garden
- Claude‑CMD – A CLI for managing Claude Code commands and workflows
- I Wrote a 680-Page Interactive Book on Data Structures and Algorithms
- Detailed explanation and guide to understanding gene editing treatments
- I built a 2B-page search engine, independent of Google/Bing
- Conductor, a Mac app that lets you run a bunch of Claude Codes at once
- LangWhich – a 30‑second daily challenge to recognize languages
- WordPress Without PHP – Build Apps and CLI Tools in TypeScript
- Cobble – A hard daily word game
- kiln – Git-native, decentralized secret management using age
- Needle – An Explorable Map of the News
- templUI Pro – A minimal UI kit for Go and templ apps
- Sapphire – Unleashing GPT-2-mini into emergence
- InstaPodz – I made this to turn my boring commute into learning session
- Rqmts – Prioritize Requirements
- Convert text/image to 3D model in seconds,No Login Required
- Made Wheel of Names Without Registration
- Visualize Wikipedia link graph, opensourced
- Quick Info on Cursor – Hoverless Tooltips for Keyboard-Only Coding
Easy alternative to giflib – header-only decoder in C [Developer Tools]
8 points, 2 comments
A lightweight, header-only GIF decoder in C optimized for embedded devices.
- No dynamic allocation
- Portable and platform-independent
- Inspired by stb-style libraries
- Optimized for embedded systems
Discussion Link, Original Link
FavBox is a local-firs browser extension for bookmark management [Productivity]
3 points, 0 comments
FavBox is a local-first browser extension for experimental bookmark management without cloud reliance.
- Local-first design ensures privacy and no dependency on cloud storage
- Experimental approach to simplify bookmark management
- Browser extension for easy integration and use
Discussion Link, Original Link
Object database for LLMs that persists across chats (MCP server) [Developer Tools]
6 points, 2 comments
A collaborative object database for LLMs that persists data across chats and supports various applications like fitness tracking, to-do lists, and research links.
- Persists data across chat sessions, preventing loss of information
- Supports adding, updating, and searching for items directly in chat
- Allows custom object schemas for flexible data organization
- Includes an auto-generated web UI with maps, charts, calendars, and tables
- Enables sharing or publishing databases for collaboration
- Currently works with Claude (Code, Desktop, Pro) with ChatGPT support coming soon
- Aims to replace multiple daily-use apps by integrating with LLMs
Discussion Link, Original Link
I built a cute focus timer where you can grow an infinite garden [Productivity]
4 points, 0 comments
A focus timer that lets users grow an infinite garden as they stay productive.
- Encourages focus by rewarding users with garden growth
- Infinite garden design for continuous motivation
- Simple, cute interface to enhance user experience
Discussion Link, Original Link
Claude‑CMD – A CLI for managing Claude Code commands and workflows [Developer Tools]
4 points, 0 comments
A CLI tool for managing Claude Code commands and workflows.
- Open-source command-line interface for Claude Code
- Streamlines interaction with Claude Code for coding tasks and automation
- Supports prompt management and workflow configuration
- Accepts community contributions to expand command library
Discussion Link, Original Link
I Wrote a 680-Page Interactive Book on Data Structures and Algorithms [Education]
14 points, 4 comments
A 680-page interactive book on data structures and algorithms with embedded visualizations and a Python IDE for hands-on learning.
- 22 chapters covering simple and complex data structures and algorithms
- Over 300 interactive visualizations paired with theoretical content
- Code snippets with a visual debugger for step-by-step execution
- Embedded Python IDE for solving problems directly in the book
- Multiple solutions with interactive visualizations and code playback
- Offline-friendly, lightweight, and cross-platform
Discussion Link, Original Link
Detailed explanation and guide to understanding gene editing treatments [Education]
4 points, 0 comments
A guide explaining gene editing treatments and their clinical applications.
- Breaks down complex gene editing science into understandable content
- Focuses on translating scientific concepts into clinical practice
- Designed to be accessible for self-learners and others interested in the field
Discussion Link, Original Link
I built a 2B-page search engine, independent of Google/Bing [Consumer Tech]
6 points, 7 comments
A solo-built, independent 2-billion-page search engine with two privacy-focused variants, hosted on a single bare-metal server.
- Independent of Google/Bing, built from scratch over 18 months
- Two search variants: session-aware (Searcha.Page) and stateless/privacy-first (Seek.Ninja)
- Self-hosted on a single $4k bare-metal EPYC server, no cloud or VC funding
- Hybrid search pipeline: lexical index for core search, lightweight LLMs for query expansion and re-ranking
- Focus on capital efficiency and digital sovereignty, avoiding Big Tech dependencies
Conductor, a Mac app that lets you run a bunch of Claude Codes at once [Developer Tools]
12 points, 11 comments
Run multiple Claude Codes simultaneously on macOS.
- Mac application
- Enables concurrent execution of Claude Codes
- Simplifies workflow for multiple code operations
Discussion Link, Original Link
LangWhich – a 30‑second daily challenge to recognize languages [Education]
3 points, 0 comments
A daily browser game where players visually identify languages from written words or phrases in 30 seconds.
- 5-round daily challenge with shared results
- 30-second total time limit for all rounds
- Multiple-choice format with 5 language options per round
- Scoring: 15 points per correct answer + speed bonus (max 100)
- Features 20 most spoken languages with diverse scripts
- Includes closely related languages for added difficulty
Discussion Link, Original Link
WordPress Without PHP – Build Apps and CLI Tools in TypeScript [Developer Tools]
3 points, 0 comments
WP-Node enables TypeScript-based app and CLI tool development using WordPress data without requiring the PHP runtime.
- Fully typed access to WordPress core tables (posts, users, terms, meta, etc.)
- CLI framework for custom commands, queries, and migrations
- Utilities for headless APIs or background jobs (e.g., cron tasks)
- Supports single-site and multisite WordPress
- Compatible with Next.js, Express, or serverless environments
- Ideal for migration scripts, cleanup tools, or data sync jobs
- Avoids WordPress internals when only the database is needed
Discussion Link, Original Link
Cobble – A hard daily word game [Entertainment]
24 points, 17 comments
A daily word game where players create two words using all given letters.
- Players receive a set of letters to form two complete words.
- Goal is to use all letters in the shortest possible words.
- Daily challenge format encourages repeat play.
Discussion Link, Original Link
kiln – Git-native, decentralized secret management using age [Developer Tools]
12 points, 2 comments
A Git-native, decentralized secret management tool using age encryption for secure environment variable sharing.
- Encrypts environment variables into files stored alongside code
- Uses age encryption (modern, audited, simple)
- Works with existing SSH keys or generates new age keys
- Role-based access via TOML configuration
- Single, cross-platform Go binary with zero network dependencies
- MIT licensed
- Commands like "run" and "export" for developer-friendly workflows
- Team management features for multiple members and environments
Discussion Link, Original Link
Needle – An Explorable Map of the News [Research]
8 points, 7 comments
Needle is an explorable map that visualizes news stories by estimating their locations using an LLM and OpenStreetMap.
- Uses LLM + OpenStreetMap to estimate story locations
- Pins recent news stories on a map
- Shows relations between stories involving multiple places
- Currently focused on Canadian news sources
- Plans to expand to international news coverage
Discussion Link, Original Link
templUI Pro – A minimal UI kit for Go and templ apps [Developer Tools]
4 points, 0 comments
templUI Pro is a paid UI kit extension for Go and templ apps, offering reusable blocks and a structured setup for faster development.
- Extends the open-source templUI with 200+ reusable UI blocks
- Designed for production use with a more structured setup
- Built with Go, templ, HTML, Tailwind, and light Vanilla JS
- No frontend frameworks or build tools required
- Maintains the original open-source version alongside the Pro offering
Discussion Link, Original Link
Sapphire – Unleashing GPT-2-mini into emergence [Developer Tools]
3 points, 3 comments
A recursive AI engine enhancing GPT-2-mini with memory and emergent capabilities for local hardware.
- Uses chrono-ranked memory for transformer inference
- Implements soft-logit biasing and prompt waveform synthesis
- Features emergent self-referential loops
- Runs on local hardware with autonomous growth
Discussion Link, Original Link
InstaPodz – I made this to turn my boring commute into learning session [Audio]
3 points, 1 comments
InstaPodz generates custom podcast episodes on-demand based on user questions for learning during commutes.
- Converts typed questions into podcast episodes using AI
- Built with Gemini models, FastAPI backend, and SwiftUI frontend
- Uses GPT4o-mini-tts for text-to-speech
- Designed for niche topics with quick episode generation
- Early-stage app seeking feedback on audio quality and UX
Discussion Link, Original Link
Rqmts – Prioritize Requirements [Productivity]
3 points, 1 comments
Prioritize requirements efficiently with Rqmts.
- Helps in organizing and ranking requirements
- Simplifies decision-making for project priorities
Discussion Link, Original Link
Convert text/image to 3D model in seconds,No Login Required [Design]
5 points, 3 comments
Convert text or image to 3D model quickly without requiring login.
- Fast conversion (seconds)
- Supports both text and image inputs
- No login or account required
Discussion Link, Original Link
Made Wheel of Names Without Registration [Productivity]
3 points, 0 comments
Wheel of Names tool that doesn't require registration.
- No registration required
- Simple and easy to use
Discussion Link, Original Link
Visualize Wikipedia link graph, opensourced [Research]
3 points, 0 comments
An interactive tool for visualizing Wikipedia article connections as a dynamic graph.
- Maps Wikipedia articles and their interconnections using the Wikipedia API
- Real-time graph building with bidirectional link traversal
- Interactive expansion by clicking nodes to reveal more connections
- Color-coded nodes for easy identification (root, valid, broken links)
- Force-directed layout with zoom, pan, and drag functionality
- Open-source and available as a web app
Discussion Link, Original Link
Quick Info on Cursor – Hoverless Tooltips for Keyboard-Only Coding [Developer Tools]
4 points, 0 comments
A VSCode and Cursor extension that shows tooltips automatically when the keyboard cursor rests on a symbol, eliminating the need for mouse hovering.
- Displays hover tooltips (e.g., function signatures, variable types) without mouse interaction
- Activates after a brief pause (default: 500ms) over a symbol
- Designed for keyboard-driven developers to improve workflow efficiency
- Open-source and available on GitHub for feedback and contributions