Fast online tools for developers and everyday work.

Format, encode, decode, inspect, and generate common development data.

Clean, count, transform, and compare text for daily writing and data work.

Quick calculators for general math, layout, health, and measurement tasks.

Convert colors, numbers, dates, CSV, YAML, JSON, and other structured values.

Generate identifiers, random values, QR codes, placeholder copy, and synthetic test data.

Inspect IP addresses, CIDR ranges, and network-friendly data formats.

Generate and preview common metadata used by search engines and crawlers.

Generate and inspect hashes, signatures, passwords, tokens, and one-time codes.

Generate, validate, and inspect country-specific personal, business, and contact identifiers.

Run focused pricing, tax, banking, payment, and planning calculations without a spreadsheet.

Convert timestamps, inspect schedules, and calculate calendar-aware time values.

Look up common web, HTTP, browser, and file format reference values.