hcat-md
Zero-configuration terminal Markdown renderer with syntax highlighting and automatic table formatting for POSIX streams.
v2.4 · All Systems Operational
Minimalist software tools for local-first workflows.
HCAT Labs is an independent research and engineering micro-studio. We design fast, dependency-free command line tools, document parsers, and browser-native utilities.
Open Modules
Self-contained libraries and utilities maintained by the studio.
tiny-cron-ast
Deterministic cron expression parser and human-readable schedule explainer with zero runtime dependencies.
wav-spectre
Client-side FFT audio spectrum analyzer compiled to WASM for real-time acoustic inspection directly in the browser.
Client-Side Payload Inspector
Instant UTF-8 byte metrics, Base64 encoding, and FNV-1a checksum calculation in your browser.
Engineering Notes
Release dispatches and architectural logs.
2026-10-14
Reducing WASM Startup Latency in wav-spectre
Replaced dynamic allocator initialization with static ring buffers, cutting cold instantiation times from 18ms to 2.4ms across mobile WebKit builds.
2026-08-29
hcat-md v0.8 Release Notes
Added truecolor ANSI escape sequence fallback detection and improved OSC-8 hyperlink wrapping inside tmux panes.
2026-06-11
Why We Keep Dependencies Near Zero
Notes on long-term software durability, reproducible builds, and keeping utility binaries under 500 KB.