Improve programming productivity with developer guides and local workflow tips. Learn how to work smarter and faster using privacy-first browser utilities.
Count tokens, context usage, and input costs for 35+ AI models entirely in your browser before any prompt reaches an API. Prices updated daily, works offline.
Measure direct browser latency, jitter, and packet loss with zero-cloud WebRTC tools. No servers, no uploads, no TURN relay.
Query and debug Parquet files locally with SQL, inspect schemas, validate data, catch errors before they reach production.
Learn to validate cron expressions locally with CapyToolkit's parser, avoiding sensitive schedule exposure and catching errors before deployment.
Understand HEX, RGB, HSL, HSV, OKLCH and when to use each format in production CSS. Includes client-side workflow tips using CapyToolkit's converter.
Inspect JWT tokens locally: no upload, no network, full privacy. Decode headers, claims, and expiry in-browser for debugging, development, and documentation.
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