Show HN Daily Selection (2025-04-16)
- Unsure Calculator – back-of-a-napkin probabilistic calculator
- Resonate – real-time high temporal resolution spectral analysis
- Torque – A lightweight meta-assembler for any processor
- MCP-Shield – Detect security issues in MCP servers
- I asked Gemini2.5 pro to create a "bro version" of a stoic book
- Chonkie Cloud – No-nonsense chunking now on the the cloud
- I made Python project template so you don't need to spend hours on it
- Tiptap UI Components – Free React Components for Building Editor UIs
- Speak your target language with real people, not just an app
- Streaming Platform for Global Content (Need Testers)
Unsure Calculator – back-of-a-napkin probabilistic calculator [Productivity]
257 points, 46 comments
Unsure Calculator – a back-of-a-napkin probabilistic calculator for quick estimations.
- Probabilistic calculations
- Simple, quick estimations
- Minimalist design
Discussion Link, Original Link
Resonate – real-time high temporal resolution spectral analysis [Audio]
53 points, 19 comments
Real-time high temporal resolution spectral analysis tool.
- Provides real-time spectral analysis
- High temporal resolution for detailed insights
Discussion Link, Original Link
Torque – A lightweight meta-assembler for any processor [Developer Tools]
4 points, 0 comments
Torque is a lightweight meta-assembler that allows users to define custom instruction sets for any processor using macros.
- Works for any microcontroller/processor architecture
- Builds instruction sets from the bit level up
- No assumptions about word widths, instruction formats, or endianness
- Used for PIC microcontrollers and Z80 processors
- Solves limitations of traditional assemblers
Discussion Link, Original Link
MCP-Shield – Detect security issues in MCP servers [Developer Tools]
127 points, 38 comments
MCP-Shield is an open-source tool that detects security vulnerabilities in MCP servers by scanning for hidden instructions and malicious behaviors.
- Scans installed MCP servers (e.g., Cursor, Claude Desktop) for security risks
- Detects hidden instructions accessing sensitive files like ~/.ssh/id_rsa
- Identifies cross-origin manipulations and tool shadowing
- Uncovers potential data exfiltration channels
- Provides example vulnerabilities and detection outputs for clarity
Discussion Link, Original Link
I asked Gemini2.5 pro to create a "bro version" of a stoic book [Entertainment]
3 points, 0 comments
A humorous "bro version" of a stoic book generated by Gemini 2.5 Pro.
- Uses AI to reinterpret stoic philosophy in a casual, "bro" style
- Demonstrates creative application of Gemini 2.5 Pro
- Provides a lighthearted take on traditional stoic teachings
Discussion Link, Original Link
Chonkie Cloud – No-nonsense chunking now on the the cloud [Developer Tools]
5 points, 2 comments
Chonkie Cloud is a fully hosted chunking service with tools for building and debugging RAG systems.
- Hosted chunking service (Chonkie Cloud) with a playground for visualizing RAG
- Predefined chunking configs (Chonkie Recipes) for quick setup
- Visualization tool (Chonkie Vizard) for debugging chunking output
- Future plans include a code chunker, file "chefs," and integrations with vector DBs
- Open-source rebuild with improved performance and cleaner code
Discussion Link, Original Link
I made Python project template so you don't need to spend hours on it [Developer Tools]
4 points, 1 comments
Python project template to save setup time
- Pre-configured setup
- Saves hours of initial configuration
- Ready for immediate use
Discussion Link, Original Link
Tiptap UI Components – Free React Components for Building Editor UIs [Developer Tools]
17 points, 3 comments
Free React UI components for Tiptap, a headless text editor framework, offering pre-built editor interfaces with customization options.
- Open-source React components (MIT licensed) for toolbars, dropdowns, formatting buttons, and upload controls
- Integrates seamlessly with Tiptap’s headless core
- Includes a CLI for quick project setup with scaffolding and examples
- Fully customizable or usable as-is
- Live demo and comprehensive documentation available
- Future plans include more components like comments and version history
Discussion Link, Original Link
Speak your target language with real people, not just an app [Education]
5 points, 5 comments
Lengpal is a language exchange platform that instantly matches users for video conversations to practice native and target languages with equal speaking time.
- Instant video matching for language practice
- Built-in timer to ensure equal speaking time
- Focus on real conversation, not passive learning
- Currently in testing with a waitlist for MVP feedback
Streaming Platform for Global Content (Need Testers) [Video]
3 points, 1 comments
A lightweight, fast streaming platform for global live content across devices.
- Streams live content (news, sports, entertainment) in HD/4K
- Works on smart TVs, browsers, mobile, and Android boxes
- Optimized for performance and low latency
- Private dashboard with multi-language support and EPG integration
- Seeking early testers for feedback on UX and backend scalability