Developer Tools
Developer tools for JSON, Base64, URL encoding, timestamps, UUIDs, hashes, CSV, and debugging tasks.
Base64 Encode / Decode
Encode and decode Base64 text with UTF-8, URL-safe, and Unicode support.
Use Now CCSV to JSON
Convert CSV rows to JSON arrays or objects locally.
Use Now HHTML Escape / Unescape
Escape and unescape HTML entities for safe display and debugging.
Use Now JJSON Formatter
Format, minify, validate, sort keys, escape, and unescape JSON locally.
Use Now JJSON to CSV
Convert JSON objects or arrays to CSV for spreadsheets and reports.
Use Now JJWT Decoder
Decode JWT header and payload locally without sending tokens to a server.
Use Now RRegex Tester
Test JavaScript regular expressions and inspect matches, indexes, and groups.
Use Now UUnix Timestamp Converter
Convert seconds, milliseconds, local time, UTC time, and ISO date strings.
Use Now UURL Encode / Decode
Encode, decode, parse, and build URL query parameters in batches.
Use Now UUUID Generator
Generate one or many UUID v4 values locally with browser crypto fallback.
Use Now