Tools
Interactive, client-side, and explicit about their assumptions. No hand-waving.
What an AI phone agent costs per month across South Asia, Africa, and South America — Twilio vs Telnyx+IDT vs own SBC, five voice engines, honest math.
Where the response time actually goes in an AI phone agent — endpointing, speech-to-text, routing, the model and synthesis. Usually it is not the model.
What an AI agent session really costs as its context grows every turn — Claude vs GPT, prompt caching, and OpenAI's 272K long-context step, turn by turn.
Four ways to build the base map for an offline GIS system, side by side on a real town — open data, free 10 m imagery, licensed 30–50 cm detail, and why tile downloaders are off the table.
JavaScript regular expressions with live highlighting, capture groups, and named groups.
Compare two blocks of text line by line — safe for configs and code, nothing leaves your browser.
Paste a cron expression, get plain English plus the next run times. Handles ranges, steps, lists, and names.
What will your AI feature cost at real volume? Token-level math with explicit, editable assumptions.
Format, validate, and minify JSON entirely in your browser — your data never leaves the page.
Encode and decode Base64 with proper Unicode handling. Client-side only.
Estimate battery runtime with explicit assumptions: efficiency, draw, and capacity.
A mocked WebSocket stream showing event-handling patterns without a backend.