vøiddo

cronwtf — explain cron expressions in plain English, preview next runs, catch gotchas (Feb 31, DOM+DOW, every-minute foot-guns). Handles @daily/@hourly/@yearly aliases, named months/weekdays. Free forever from vøiddo.

sslcheck — inspect TLS certificates for any host:port. Reports issuer, SANs, validity window, days-until-expiry, key strength, chain depth. An openssl s_client alternative for CI, cron, and certificate-expiry triage. Severity-aware exit codes. Zero deps.

timecheck — convert timestamps between unix seconds, unix ms, ISO 8601, RFC 2822, human-readable. Auto-detects input format. Stream-filter mode rewrites unix tokens in log files in place. Zero deps. Free forever from vøiddo.

Count LLM tokens and estimate cost across 60+ models. 2026-04 snapshot: GPT-5.4, Claude Opus 4.7, Gemini 3.1 Pro, Grok 4.1 Fast, Llama 4 Scout (10M ctx), Mistral Large 3, Magistral, DeepSeek V3.2/R2, Qwen3 Max, Cohere Command A/R7B, Nova. Tag-filter for r