Show HN Daily Selection (2025-04-28)04/28/2025
Developer Tools
Consumer Tech
Marketing
Productivity
Entertainment
Health
ChatBots
Image
- I486SX_soft_FPU – Software FPU Emulator for NetBSD 10 on 486SX
- I created snapDOM to capture DOM nodes as images with exceptional speed
- Daily Jailbreak – Prompt Engineer's Wordle
- Bhvr, a Bun and Hono and Vite and React Starter
- Remote-Controlled IKEA Deathstar Lamp
- A Common Lisp implementation in development, supports ASDF
- Logchef – Schema-agnostic log viewer for ClickHouse
- I made a one-click AI ad creator for products
- Talanoa – The email client I always dreamed of (People-first, Kanban)
- NeKernel's AHCI driver and WiP filesystem
- Announcing Nest2D.dev: Open-Source Server-Side Nesting for DXF
- Lil digi – play a platformer game as yourself
- A crowd-data collection Project about Indoor Air Quality (CO2)
- Milchick – a Firefox extension to simplify wordy posts
- Mirror AI – LLM agent that takes action, not just chat
- I Made A parody website for the AI addicted (Brain AI)
- I made Cursor's CMD+K for any website
- I built SecretCrush AI – an AI chat companion app - entirely using AI
- ChatGPT-Ruby – A Minimal, Rails-Friendly OpenAI SDK
- ImgDetect – AI Image Detector to Identify Fake and AI-Generated Images
- Plan-linter – pre-flight safety checker for AI agent plans
Show HN Daily Selection (2025-04-27)04/27/2025
Developer Tools
Productivity
Image
- My self-written hobby OS is finally running on my vintage IBM ThinkPad
- I made a tool that uses AI to turn my ADHD brain into a super power
- Empty Enter Expander – Type less in the terminal with this tool
- Gemini Document Processor – Generate Th Summaries from PDF/ePub with AI
- Install CLI Apps via Plain HTTP – No Docker, No Binaries, Just Curl
- Wiredoor – Securely expose private services
- How I Taught AI to Make Memes
- Diffulab, a library to train diffusion models from scratch
- VacayBuddy – PTO Management Inside Slack (Open Source)
Show HN Daily Selection (2025-04-26)04/26/2025
Image
Research
Developer Tools
Productivity
Education
Consumer Tech
Marketing
Finance
Business
Entertainment
- I used OpenAI's new image API for a personalized coloring book service
- Formalizing Principia Mathematica using Lean
- Magnitude – open-source, AI-native test framework for web apps
- A modern spreadsheet with Python integration
- BugStalker - a modern Rust debugger
- RSS Lookup – Find RSS Feeds for Any URL (Free, Open Source)
- Faasta – A self-hosted Serverless platform for WASM-wasi-HTTP in Rust
- StackHound - Stop guessing repo's tech stack, analyze it in seconds
- SnipFast – Extract Highlighted Text from Physical Books
- An interactive demo of QR codes' error correction
- Claude Code with GUI and Block Based Prompt Editor (MIT)
- Loat – Grow MRR with automated emails
- An MCP Server for Understanding AWS Costs
- OpenWrt Configurator – Simple config management for OpenWrt devices
- Turn Rails REST APIs into Model Context Protocol (MCP) Servers
- Pomo – Manage your Stripe promo codes without code
- Mailfrom.dev – A Cheaper MailTrap Alternative
- My Python text-based dungeon crawler game engine
- TSCE – Think Before You Speak (Two-Step Contextual Enrichment for LLMs)
- Mermaid Open Editor 2.0
- Turbine – A scripting language for C/C++ with Markdown-like syntax
Show HN Daily Selection (2025-04-25)04/25/2025
Video
Design
Productivity
Developer Tools
Consumer Tech
Entertainment
Business
Travel
ChatBots
Marketing
Education
Image
- Lemon Slice Live – Have a video call with a transformer model
- I reverse engineered top websites to build an animated UI library
- I Added Translation to My RSS Reader Project
- Zev – Remember (or discover) terminal commands
- Infat – Declaritive application assocation manager for macOS
- My from-scratch OS kernel that runs DOOM
- Colanode, open-source and local-first Slack and Notion alternative
- I made my own TRMNL e-ink device
- I hate cubes, so I vibe coded a game to destroy them
- We made a blazing-fast, open-source GitHub front end
- Interactive map of Palo Alto police record log PDFs
- TabTab – A keyboard-first browser workspace for tab hoarders
- GitNote- Online MD note editor that syncs to GitHub
- IdeaKiln – A platform to validate your startup ideas before building
- I made an AI copilot for Maps that answers open-ended map questions
- Chat with AI copies of all HN users, like sama, dang, and even yourself
- I built a visual topic explorer for SEOs and content creators
- Safari extension that adds Chrome-style bookmark star to the toolbar
- Type Japanese an app to practice typing Japanese keyboard
- MCP MCP – an MCP server to list MCP servers
- ParseLM – Reliably Structure LLM Outputs for Data and Control Flow
- ProfileMagic – $10 AI LinkedIn headshots (20 photos, look natural)
Show HN Daily Selection (2025-04-24)04/24/2025
Education
Developer Tools
Entertainment
Productivity
Business
Consumer Tech
Research
- Node.js video tutorials where you can edit and run the code
- Index – new SOTA Open Source browser agent
- Find a random wedding website
- Body Controlled 3D Dino Game
- Advanced-Alchemy – A framework agnostic library for SQLAlchemy
- Nowrite.fun – If you stop typing, your text disappears
- Moose – OSS framework to build analytical back ends with ClickHouse
- Document agent example that can parse and chat over unstructured data
- XCapture v3: Linux Performance Analysis with Modern eBPF and DuckDB
- I built a No Code Dockerized MCP Server for any API - AI Agent
- Itsi – all-in-one HTTP server and proxy with first-class Ruby support
- Bloggr – a Next.js blogging engine (open-source; MIT)
- MCP Manager – Open-Source CLI to Manage Your MCP Servers
- Built a resume filtering tool after screening 1000s manually as a dev
- JotSense – AI note-taking agent that extracts notes from any source
- AirDisk Pro – File manager and wireless photo transfer for Android
- Talk to 3000 ICLR 2025 (machine learning conference) papers
Show HN Daily Selection (2025-04-23)04/23/2025
Developer Tools
Entertainment
Consumer Tech
Education
E-commerce
Health
Business
- Rowboat – Open-source IDE for multi-agent systems
- Morphik – Open-source RAG that understands PDF images, runs locally
- Durable Python Workflows
- Dosidicus – A digital pet with a simple neural network
- I open-sourced my AI toy company that runs on ESP32 and OpenAI realtime
- I built a Ruby gem that handles memoization with a ttl
- LMM for LLMs – A mental model for building LLM apps
- Fullstack Go app (SSRfront end+APIback end+Docker) with clean structure
- [Opensource] AIgr.id–Polycentric Infrastructure for Open and Plural AI
- TableTennis, a new rubygem for printing stylish tables in your terminal
- Wanted AI functions in Vue, ended with something cool
- I built an app so I could read the 3 Body-Problem in Chinese
- Track your cart total while shopping at Costco
- Happen We Discovered This Minimal Framework of Glue with Superpowers
- I made a documentation tool for Jira projects
- PagePal – An eBook reader for ADHD and crap memory
- MA Weight – A minimal tracker that smooths your weight trend
- Resume Yay: The Free AI Resume Builder that also finds you jobs
- Hippo Protocol - Empower Healthcare Data Sovereignty Through Blockchain
- A DMCA resistant fork of no-defender
- Copy Cloudflare WAF rules across multiple domains, in bulk
- I made TypeScript's type inference more strict (and smarter)
- Codebase Knowledge Graph Builder
Show HN Daily Selection (2025-04-22)04/22/2025
Audio
Developer Tools
ChatBots
Research
Business
Productivity
- Dia, an open-weights TTS model for generating realistic dialogue
- Open Codex – OpenAI Codex CLI with open-source LLMs
- Nerdlog – Fast, multi-host TUI log viewer with timeline histogram
- Light like the Terminal – Meet GTK LLM Chat Front End
- ArTok is TikTok for research papers
- Keep your PyTorch model in VRAM by hot swapping code
- Pad.ws – Whiteboard IDE is now open-source
- SHow HN: Zorium - Alternative to Discord
- Explore Remote Jobs Aggregated from Top Sources in One Hub
- Look Busy – Realistic-Looking Fake Calendar Events
- Comparelists.org – Instantly Compare Two Lists, Find Differences
Show HN Daily Selection (2025-04-21)04/21/2025
Life Assistant
E-commerce
Developer Tools
Audio
Productivity
Education
- JuryNow – Get an anonymous instant verdict from 12 real people
- Real-time 4/20 cannabis sales dashboard using Estuary and Tinybird
- A Standalone/GitHub CLI Extension to Preview GitHub Flavored Markdown
- MidiMaker.pro – Generate structured MIDI music from text using LLMs
- Tascli, a simple, local CLI task and record manager
- Learn bird calls with audio flashcards
- Hyprnote – VSCode for Meeting Notes (Open-Source and Local-First)
- npx -y @considered/harmful
- lsblk.lua: lsblk(8) for FreeBSD using Lua in base system
- Woeful – let web apps safely and securely connect to external resources
Show HN Daily Selection (2025-04-20)04/20/2025
Education
Research
Entertainment
Video
Developer Tools
Productivity
Business
Travel
- I built an AI that turns GitHub codebases into easy tutorials
- Goldbach Conjecture up to 410^18+710^13
- Undercutf1 – F1 Live Timing TUI with Driver Tracker, Variable Delay
- Web Video editor, 100% local, AI subtitle, auto cut based on volume
- Parqv – Interactive TUI Parquet Visualizer
- LettuceDetect – Lightweight hallucination detector for RAG pipelines
- DeadDrop – Tiny tool to share files anonymously
- I built a tool to find pain points in questions and generate SaaS ideas
- Make your bookmarks smarter with AI
- i built an AI code reviewer for github (used it on itself during dev)
- CR4SH3R – Fast WordPress Plugin Vulnerability Scanner
- I made an app to get Paraguay residency and citizenship
- Flight search that shows aircraft and airline safety records
Show HN Daily Selection (2025-04-19)04/19/2025
Entertainment
Developer Tools
Business
Health
Inspiration
- I made a Doom-like game fit inside a QR code
- (bits) of a Libc, Optimized for Wasm
- Attune - Build and publish APT repositories in seconds
- Too Many Business Ideas? stop choosing, launch all of them, FAST&FREE
- I made a game using mazes generated by ChatGPT
- Any API to MCP Server tools converter
- I rebuilt my AI browser game using 100 pieces of feedback from HN
- I built an AI-powered packaged food ingredients list vegetarian scanner
- Happy Little Monoliths, First Edition
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