Show HN
"Show HN" is where developers showcase their own products and projects on HackerNews. We pick the top-scoring launches every day.
-
Shader Lab, like Photoshop but for shaders
Show HN A visual shader editor that makes creating and editing GPU shaders as intuitive as photo editing
-
MDV – a Markdown superset for docs, dashboards, and slides with data
Show HN A Markdown extension that enables creating interactive documents, dashboards, and presentations with embedded data visualization capabilities.
-
AI Subroutines – Run automation scripts inside your browser tab
Show HN Browser-based automation tool that runs deterministic scripts directly in tabs without API tokens.
-
I made a calculator that works over disjoint sets of intervals
Show HN A web calculator that performs arithmetic operations on mathematical interval sets.
-
Smol machines – subsecond coldstart, portable virtual machines
Show HN Lightweight virtual machines that start in under a second and can run anywhere.
-
PanicLock – Close your MacBook lid disable TouchID –> password unlock
Show HN MacBook security tool that disables TouchID when lid closes, forcing password authentication for enhanced privacy protection.
-
Sfsym – Export Apple SF Symbols as Vector SVG/PDF/PNG
Show HN Command-line tool to export Apple's SF Symbols as vector files in SVG, PDF, or PNG formats.
-
Stage – Putting humans back in control of code review
Show HN A code review tool that prioritizes human judgment over automated processes for better development workflows.
-
MacMind – A transformer neural network in HyperCard on a 1989 Macintosh
Show HN Implements a transformer neural network using HyperCard on vintage 1989 Macintosh hardware
-
SPICE simulation → oscilloscope → verification with Claude Code
Show HN A workflow demonstrating electronic circuit simulation, oscilloscope measurement, and AI-powered code verification for hardware design validation.
-
Home Memory – A local DB of my house, down to cables and pipes
Show HN A local database system to catalog and track everything in your home from furniture to hidden cables and pipes.
-
Marky – A lightweight Markdown viewer for agentic coding
Show HN A minimalist Markdown viewer designed specifically for AI-assisted coding workflows.
-
Libretto – Making AI browser automations deterministic
Show HN A framework that makes AI-powered browser automation more reliable and predictable for consistent results.
-
Hiraeth – AWS Emulator
Show HN A lightweight AWS service emulator for local development and testing environments
-
LangAlpha – what if Claude Code was built for Wall Street?
Show HN AI coding assistant specifically designed for financial industry workflows and Wall Street applications.
Apr 2026 TOP 10
-
Smol machines – subsecond coldstart, portable virtual machines
Show HN Lightweight virtual machines that start in under a second and can run anywhere.
-
I made a calculator that works over disjoint sets of intervals
Show HN A web calculator that performs arithmetic operations on mathematical interval sets.
-
PanicLock – Close your MacBook lid disable TouchID –> password unlock
Show HN MacBook security tool that disables TouchID when lid closes, forcing password authentication for enhanced privacy protection.
-
MacMind – A transformer neural network in HyperCard on a 1989 Macintosh
Show HN Implements a transformer neural network using HyperCard on vintage 1989 Macintosh hardware
-
LangAlpha – what if Claude Code was built for Wall Street?
Show HN AI coding assistant specifically designed for financial industry workflows and Wall Street applications.
-
Libretto – Making AI browser automations deterministic
Show HN A framework that makes AI-powered browser automation more reliable and predictable for consistent results.
-
MDV – a Markdown superset for docs, dashboards, and slides with data
Show HN A Markdown extension that enables creating interactive documents, dashboards, and presentations with embedded data visualization capabilities.
-
Stage – Putting humans back in control of code review
Show HN A code review tool that prioritizes human judgment over automated processes for better development workflows.
-
SPICE simulation → oscilloscope → verification with Claude Code
Show HN A workflow demonstrating electronic circuit simulation, oscilloscope measurement, and AI-powered code verification for hardware design validation.
-
Marky – A lightweight Markdown viewer for agentic coding
Show HN A minimalist Markdown viewer designed specifically for AI-assisted coding workflows.