AmpCub TOOLS
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DEVELOPER · AmpCub data helpers

Developer tools

Encode, compress, plus hash, regex, and Cron helpers for everyday snippets. For CSV / table / JSON conversion, see Data & JSON. Everything stays in your browser.

Local only · no upload

Encode & compress

Base64 / Base64URL & HexEncode or decode text and files; keep binary results. zlib／gzip／raw DEFLATECompress or decompress; chain with Base64 or Hex. URL encode / decodeencodeURIComponent or encodeURI, locally.

Dev helpers

Unix timestamp converterExplicit seconds/milliseconds plus IANA time-zone reverse conversion. JWT DecoderDecode header, payload, and NumericDate claims; decoded does not mean verified. Escape / UnescapeJSON string and HTML entity escaping, with text-only output. Hash & UUIDSHA digests via Web Crypto, plus UUID v4. Regex testerPattern, flags, and match results — with honest limits. Cron explain / next runsCommon 5-field cron only (no seconds/year).

JSON related

YAML ↔ JSONValidate YAML and convert both ways with a pinned local parser. XML ↔ JSONCompact mapping with explicit DTD / ENTITY rejection. JSON Tree ViewerLazy tree browsing, search, navigation, and JSON Pointer copy. JSON format / minify / validatePretty-print, minify, or check valid JSON. CSV ↔ JSONAlso in Data & JSON — convert with encoding and leading-zero care. JSON → tableAlso in Data & JSON — preview, copy, or download tabular data.

Need general text cleanup?

Word count, clean, case, and line tools stay under Text.

Go to text tools

These are browser tools, not a public HTTP API. Data stays on-device.