Show HN Daily Selection (2025-08-06)
- Stagewise (YC S25) – Front end coding agent for existing codebases
- Whittle – A Shrinking Word Game
- I built a tool to replace capcut audio transcription
- Tambo – build generative UX web apps
- I built a text-based birthday reminder app
- Scar – A programming language for easy concurrency and parallelism
- Cartoony AI Voices on ESP32 with Pitch Shifting
- Using DSPy to enrich a dataset of the Nobel laureate network
- I got rejected by Meta so I built an AI Recruiter to roast resumes
- Embeddable -build interactive experiences you can drop into any website
- Dataset Explorer – Free tool to search any public datasets
- FlexLLama – Run multiple local LLMs at once with a simple dashboard
- A simple website to analyze mortgage called "Mortlab"
- Just a simple Homelab upgraded to SFP+ and multigig LAN
- Read the RFCs That Built the Internet
Stagewise (YC S25) – Front end coding agent for existing codebases [Developer Tools]
28 points, 30 comments
Stagewise is a frontend coding agent that integrates with local codebases to enable UI changes via prompts directly in the browser.
- Operates on local codebases by injecting a toolbar into running web apps in dev mode
- Allows users to click elements and modify them via natural language prompts (e.g., "increase the height here")
- CLI tool (
npx stagewise) proxies and enriches prompts with browser context for backend processing - Designed to bridge the gap between prototyping tools and local development
- Popular among non-technical users for extending prototypes into full codebases
- Demo available for modifying UI in apps like Cal.com
- Used by founders for landing page updates and feature development
Discussion Link, Original Link
Whittle – A Shrinking Word Game [Entertainment]
80 points, 34 comments
A word game where players shrink phrases by one letter per turn while keeping valid words.
- Players remove one letter or space each turn
- Must maintain valid words in the remaining phrase
- Includes daily puzzles and an archive
- Inspired by a dream and built as a passion project
- Feedback and suggestions welcome
Discussion Link, Original Link
I built a tool to replace capcut audio transcription [Audio]
16 points, 10 comments
A browser-based tool for audio transcription using Whisper via Transformers.js, designed to replace CapCut and YouTube transcription services.
- Runs Whisper locally in the browser using Huggingface/Xenova Transformers.js
- Avoids reliance on third-party services like CapCut, which claim ownership of content
- Useful for transcribing YouTube videos, CLI prompts, or other audio recordings
- Includes a background worker for efficient processing
- Demo and implementation examples available via Huggingface
Discussion Link, Original Link
Tambo – build generative UX web apps [Developer Tools]
8 points, 0 comments
Build generative UX web apps with Tambo.
- Enables creation of generative user experiences
- Focuses on web application development
- No-code or low-code approach implied (based on context)
Discussion Link, Original Link
I built a text-based birthday reminder app [Life Assistant]
42 points, 30 comments
A text-based birthday reminder app that sends SMS/WhatsApp alerts without social media bloat.
- No app download required; login via phone number + SMS code
- Manual entry, text input, or Google Calendar sync for birthdays
- US users get SMS reminders; international users get WhatsApp
- Uses Twilio for messaging and Stripe for payments
- $9/year plan (or $3/year for some users) with 739 paying customers
- Future plans include iPhone contacts sync and birthday celebration videos
Discussion Link, Original Link
Scar – A programming language for easy concurrency and parallelism [Developer Tools]
5 points, 7 comments
A programming language designed for easy concurrency and parallelism.
- Focuses on simplifying concurrent and parallel programming
- Aims to reduce complexity in multi-threaded applications
Discussion Link, Original Link
Cartoony AI Voices on ESP32 with Pitch Shifting [Audio]
3 points, 0 comments
A project demonstrating cartoon-style voice modulation using pitch shifting on ESP32 with OpenAI and Gemini voices.
- Uses Arduino-audio-tools and ElatoAI libraries for pitch shifting
- Modifies OpenAI Realtime and Gemini Live Voices to mimic cartoon characters
- Compatible with ESP32 microcontroller
- Enables fun, creative voice transformations like Alvin and the Chipmunks or Hulk
Discussion Link, Original Link
Using DSPy to enrich a dataset of the Nobel laureate network [Research]
8 points, 0 comments
A DSPy pipeline combining vector search and LLMs to accurately disambiguate and enrich a Nobel laureate network dataset.
- Uses DSPy for high-accuracy record disambiguation
- Combines vector search and LLMs in a scalable pipeline
- Cost-effective and concise (<100 lines of code)
- Runs asynchronously
- Open-source and compatible with open-weight LLMs
Discussion Link, Original Link
I got rejected by Meta so I built an AI Recruiter to roast resumes [Business]
3 points, 0 comments
Got rejected by Meta and built an AI Recruiter to critique resumes.
- AI-powered resume feedback
- Simulates recruiter evaluation
- Helps improve job application materials
Discussion Link, Original Link
Embeddable -build interactive experiences you can drop into any website [Marketing]
7 points, 0 comments
Embeddable AI lets marketers create interactive AI experiences like chatbots and quizzes for any website with a simple embed code.
- Works across CMS platforms (Wix, Shopify, Webflow, WordPress)
- Built with React/TypeScript frontend and Node.js backend
- Fast-loading and easy to embed via code snippet
- Supports chatbots, quizzes, and AI assistants
- Designed for marketers and builders seeking feedback
Discussion Link, Original Link
Dataset Explorer – Free tool to search any public datasets [Research]
7 points, 2 comments
A free tool for searching public datasets using natural language queries across multiple platforms.
- Searches datasets from Kaggle, data.gov, and other sources with natural language
- Uses Perplexity and Firecrawl for intelligent dataset discovery
- Provides previews of relevant datasets based on queries
- Free to use and analyze datasets on Hunch
- Demo available showcasing insights from tech layoff data
Discussion Link, Original Link
FlexLLama – Run multiple local LLMs at once with a simple dashboard [Developer Tools]
4 points, 0 comments
FlexLLama is a tool for running multiple llama.cpp instances simultaneously with a single OpenAI-compatible API and a web dashboard.
- Runs multiple llama.cpp instances across CPU and GPUs
- Supports chat models, embeddings, and rerankers concurrently
- Models reload on the fly without restarting
- Includes a web dashboard for monitoring and managing runners
- Easy setup via pip install or Docker image
- Compatible with OpenWebUI and VS Code extensions
Discussion Link, Original Link
A simple website to analyze mortgage called "Mortlab" [Finance]
4 points, 1 comments
A free, ad-free website called Mortlab helps users analyze whether renting or buying a home is better for their situation.
- Clean rent vs buy calculator
- Monthly and long-term cost breakdowns
- Refinance and affordability tools
- No login, ads, or affiliate spam
Discussion Link, Original Link
Just a simple Homelab upgraded to SFP+ and multigig LAN [Consumer Tech]
5 points, 0 comments
Homelab upgraded with SFP+ and multigig LAN capabilities.
- Supports SFP+ for high-speed networking
- Includes multigig LAN for enhanced connectivity
Discussion Link, Original Link
Read the RFCs That Built the Internet [Education]
4 points, 4 comments
A tool for exploring foundational internet RFCs with Python examples and Dockerfiles for complex networking concepts.
- Provides progressive learning of internet RFCs
- Includes Python code examples
- Offers Dockerfiles for complex networking paradigms
- Interactive and educational approach to understanding internet standards