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How formats work — and how to convert between them fast.

Metric & Imperial Cheat Sheet How-To Units Number Formatting Temperature Explainer File Conversion Compression Image Formats Contrast Colour Picking HSL Hex & RGB Rounding All Categories View All Tags All series
Text Tools Text Tools Explained: Case, Slugs, Encoding, and Clean Data Formats
How the everyday text conversions really work — changing case, making URL slugs, counting words vs bytes, URL and Base 64 encoding, and moving data between JSON...

Text Tools Explained: Case, Slugs, Encoding, and Clean Data Formats

How the everyday text conversions really work — changing case, making URL slugs, counting words vs bytes, URL...

Jul 10, 2026
Unit Conversions Unit Conversions Made Simple: Metric, Imperial, and the Gotchas in Between
How everyday unit conversions actually work — length, weight, temperature, cooking measures, and data sizes — with exact factors, worked examples, and the gotch...

Unit Conversions Made Simple: Metric, Imperial, and the Gotchas in Between

How everyday unit conversions actually work — length, weight, temperature, cooking measures, and data sizes —...

Jul 06, 2026
Date & Time Tools Timezones, Unix Timestamps, and Date Math: How Computers Count Time
How timezones, UTC offsets, Unix timestamps, and date arithmetic really work — with worked examples that compute, and the gotchas (DST windows, ms vs s, date fo...

Timezones, Unix Timestamps, and Date Math: How Computers Count Time

How timezones, UTC offsets, Unix timestamps, and date arithmetic really work — with worked examples that compu...

Jul 06, 2026