JSON ALL-IN-ONE / BROWSER EXTRACTION

Free online website extractor from JSON

Extract website hostnames and domain-like strings from nested JSON, ready to copy or download.

Privacy-first website and hostname extraction | not a registrable-domain validator

Paste formatOpen JSON file

Paste JSON or Drag and Drop your file.

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Recent successful runs

Only settings and opaque source fingerprints stay in this browser. JSON and results are not saved.

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Source semantics

Websites, sites, hostnames, and domains

This page finds bare hostnames such as docs.example.com and hosts inside HTTP(S) URLs. It returns a unique list for website inventory work.

The extractor checks both object keys and string values in nested JSON.

Boundaries

Not a registrable-domain parser

A hostname is not always a registrable domain. The extractor does not apply a public suffix list, collapse subdomains, or prove site ownership.

The source is opened through a streamed local workbench. Extraction scans one top-level item at a time, with a 32 MiB per-item working-set guard and a 10,000-match result budget. A file may open successfully even when a particular extraction is too expensive.

Neither your JSON nor extracted URLs are submitted to our servers by this tool.