Tools
Small utilities I built because I wanted them. Free, no sign-up, and nearly everything runs in your browser — My IP is the exception, since it has to ask a lookup service.
Security
Network
Developer
JSON Formatter & Diff
Validate, pretty-print or minify JSON with exact error locations, and compare two documents.
Open →Base64 & URL Encoder
Encode and decode Base64 (with a URL-safe mode) and percent-encoded URLs. Safe for any language.
Open →Unix Timestamp Converter
Turn epoch seconds or milliseconds into dates in any time zone, and dates back into timestamps.
Open →Regex Tester
Test JavaScript regular expressions with live highlighting, capture groups and a replace preview.
Open →Cron Explainer
Turn a cron expression into plain English and see exactly when it will run next.
Open →