I built Blobster as a small side project because reviewing and editing CSV, Markdown, JSON and other structured files in the browser was more annoying than it should be.
I kept running into the same workflow: open a raw API response, inspect a CSV export, preview Markdown, search through a blob, copy a path or value, maybe redact something sensitive before sharing it.
Most tools either felt too narrow, too paste-site-like or required sending data somewhere I did not want to send it.
So Blobster is a local-first extension for inspecting structured data directly in the browser.
It supports:
- CSV / TSV table viewing and editing
- JSON tree, table and raw views
- Markdown preview and editing
- Search across keys, values, and cells
- Copying values, JSONPath, jq and JS paths
- Redacted copy for sensitive-looking output
- Local browser usage with no login
Everything stays local. No uploads, no account, no telemetry.
Chrome Web Store: https://chromewebstore.google.com/detail/blobster/epddolhfilamhbnmgglenceabjbbeeho
I would love feedback from people who often inspect API responses, data exports, configs, logs, HAR files or random structured blobs in the browser.
Top comments (0)