Show HN Daily Selection (2025-04-30)
- Beatsync – perfect audio sync across multiple devices
- A Chrome extension that will auto-reject non-essential cookies
- Flowcode – Turing-complete visual programming platform
- Neurox – GPU Observability for AI Infra
- Memex is a Claude Code alternative built on Rust+Tauri for vibe coding
- Auto-fix your GitHub PR issues with Proton for FREE
- Dish – A simple HTTP and TCP endpoint monitoring tool (written in Go)
- Xilt – A concurrent log parser written in Go
- Rad Type - Can we make gamepad typing fast?
- Photorealistic ray-traced micro-voxel FPS
- Classic games that look like a spreadsheet for office workers
- Neuro Tools, a collection of tools to help neurodivergent people
- POC to scrape and structure HTML into JSON for RAG
- Discorss – RSS Feeds for Discord
- Wrap Notes – One big text file with multiple projections
- I built a tool to automate estimate creation
- XWiki 17.3.0 has just been released
Beatsync – perfect audio sync across multiple devices [Audio]
171 points, 48 comments
Beatsync is an open-source browser-based audio player that syncs audio with millisecond-level accuracy across multiple devices.
- Syncs audio across devices with millisecond precision
- No additional hardware required
- Uses Web Audio API and websockets for low latency
- Supports spatial audio by arranging devices on a virtual grid
- Works live in the browser at beatsync.gg
Discussion Link, Original Link
A Chrome extension that will auto-reject non-essential cookies [Productivity]
196 points, 121 comments
A FOSS Chrome extension that automatically rejects non-essential cookies to eliminate cookie pop-up annoyances.
- Automatically rejects non-essential cookies without manual intervention
- Simplifies the process compared to chaining extensions or custom uBlock rules
- Open-source and available on GitHub for community contributions
- Early-stage project with plans for broader site compatibility
Discussion Link, Original Link
Flowcode – Turing-complete visual programming platform [Developer Tools]
154 points, 67 comments
Flowcode is a Turing-complete visual programming platform designed to simplify backend development and LLM workflows by combining code flexibility with visual design.
- Open-source foundation (Flyde) with true concurrency and Turing-completeness
- No vendor lock-in (export flows as .flyde files)
- Integrates with existing code via SDK
- Supports loops, recursion, and multiple IOs
- Optimized for debugging and tweaking LLM workflows
Discussion Link, Original Link
Neurox – GPU Observability for AI Infra [Developer Tools]
21 points, 17 comments
GPU observability tool for AI infrastructure.
- Monitors GPU performance in AI environments
- Provides insights for infrastructure optimization
Discussion Link, Original Link
Memex is a Claude Code alternative built on Rust+Tauri for vibe coding [Developer Tools]
84 points, 80 comments
Memex is a cross-platform desktop app combining ChatGPT and Claude Code features for flexible, local coding with support for any tech stack.
- Combines chat tools and coding agents in one app
- Supports any tech stack and runs locally
- Features Claude Code-like coding and agentic web search/research
- Includes pre-built templates and inline data analysis/visualization
- Offers checkpointing (shadow git repo) and privacy mode
- Built with TS+Rust+Python using Tauri for cross-platform compatibility
- Free tier available with paid plans; roadmap includes more model support and features
Discussion Link, Original Link
Auto-fix your GitHub PR issues with Proton for FREE [Developer Tools]
10 points, 2 comments
Proton is a GitHub app that automatically suggests and implements code changes based on PR review comments.
- Focuses on addressing issues rather than just pointing them out
- Handles cross-file changes and full repo context
- Creates a new PR with suggested fixes for easy review and merging
- Free to use and easy to install
- Works out of the box with no setup required
Discussion Link, Original Link
Dish – A simple HTTP and TCP endpoint monitoring tool (written in Go) [Developer Tools]
4 points, 0 comments
A simple HTTP and TCP endpoint monitoring tool written in Go.
- Monitors HTTP and TCP endpoints
- Written in Go for performance and simplicity
- Open-source with a shared repository
- Includes a detailed blog post for setup and usage
Discussion Link, Original Link
Xilt – A concurrent log parser written in Go [Developer Tools]
4 points, 0 comments
A concurrent log parser in Go for CLF logs with SQLite storage.
- Parses Common and Combined Log Format (CLF) logs
- Stores parsed logs in SQLite for analysis
- Built as a learning project but practical for daily use
- Handy for occasional CLF log processing
Discussion Link, Original Link
Rad Type - Can we make gamepad typing fast? [Consumer Tech]
39 points, 36 comments
Rad Type - A project exploring fast gamepad typing for gaming and accessibility.
- Focuses on improving typing speed using game controllers
- Potential applications in gaming and accessibility
- Experimental approach to input methods
Discussion Link, Original Link
Photorealistic ray-traced micro-voxel FPS [Entertainment]
4 points, 0 comments
Photorealistic ray-traced micro-voxel FPS game.
- Photorealistic graphics
- Ray-traced rendering
- Micro-voxel environment
- First-person shooter gameplay
Discussion Link, Original Link
Classic games that look like a spreadsheet for office workers [Entertainment]
4 points, 0 comments
A web app with spreadsheet-like classic games for office workers to play discreetly.
- Disguised as a spreadsheet to avoid detection
- Built with NextJS and Supabase for web-only focus
- Includes leaderboards locked behind a paywall
- Currently lacks mobile responsiveness
- Plans to add banner ads and optimize leaderboard queries
Discussion Link, Original Link
Neuro Tools, a collection of tools to help neurodivergent people [Health]
17 points, 5 comments
A collection of tools designed to help neurodivergent individuals manage challenges like ADHD, depression, and autism.
- Challenges inner critic to encourage posting on platforms like Hacker News
- "Catch the urge" feature to prevent binge eating and redirect focus
- Task breakdown tool to simplify overwhelming tasks
- Procrastination solver to help with task initiation
Discussion Link, Original Link
POC to scrape and structure HTML into JSON for RAG [Developer Tools]
6 points, 4 comments
A tool that scrapes webpages, processes content with Gemini Flash, and outputs structured JSON for RAG workflows.
- Scrapes webpage content
- Processes with Gemini Flash
- Outputs clean, structured JSON
- Designed for RAG workflows
- Enhances models with external knowledge
Discussion Link, Original Link
Discorss – RSS Feeds for Discord [Developer Tools]
10 points, 5 comments
Discorss is an open-source Discord bot for managing RSS feeds with AI summarization and paywall skipping.
- Open-source and customizable
- AI-powered summarization
- Automatic paywall skipping
- Managed via slash commands
- Easy self-hosting with Railway
- Supports channel-based feed organization
Discussion Link, Original Link
Wrap Notes – One big text file with multiple projections [Productivity]
6 points, 1 comments
A markdown notes app with flexible hierarchical views for organizing notes by date or topic.
- Supports timeline view (Date -> Topic -> Note)
- Supports topic view (Topic -> Date -> Note)
- Minimalist design without unnecessary features
- Built on solid markdown foundation
Discussion Link, Original Link
I built a tool to automate estimate creation [Business]
4 points, 6 comments
Quotka is an AI-powered tool that helps freelancers and small teams generate professional quotes quickly.
- Automates quote creation with AI based on client info and project description
- Allows customization and export as PDF
- Enables direct email sending to clients
- Saves time by replacing manual Word template adjustments
Discussion Link, Original Link
XWiki 17.3.0 has just been released [Productivity]
8 points, 1 comments
XWiki 17.3.0 is a new release of the open-source wiki platform.
- Open-source wiki software
- Version 17.3.0 update