Browser extension

Blobster opens structured developer data locally.

Inspect, format, edit, search, and copy API responses, config files, exports, tokens, logs, and specs without pasting sensitive data into public formatter sites.

Contact support Read privacy policy
Blobster showing a JSON tree, selected path, and local edit controls.
No backend service
No telemetry or analytics
No public paste URLs
No document-content sync

What it does

Blobster turns raw structured blobs into an in-browser workbench with tree, table, raw, Markdown preview, HAR, and OpenAPI views where applicable.

Use it for local files, pasted text, drag-and-drop files, selected page text, structured URLs, and high-confidence raw browser pages.

Why local matters

Developer blobs often contain production payloads, customer data, tokens, credentials, internal URLs, or support evidence. Blobster keeps formatting and inspection inside your browser.

It has no account system, backend, analytics, telemetry, cloud sync, or public paste links.

Supported data

JSONYAMLTOMLXMLCSVTSVNDJSONMarkdown.envJWTHAROpenAPI

Useful workflows

  • Copy paths as JSONPath, jq, or JavaScript.
  • Edit supported values locally before copying or exporting.
  • Search keys and values across large files.
  • Copy redacted output when data needs to leave your browser.