TabBench
7 tools · nothing leaves your browser

Developer and data tools

Debugging usually means pasting something sensitive into a tool — an API response with customer records, an auth header, a production token. Doing that on a site that posts the data to its own backend is a real risk, and one that has caused genuine incidents. Every tool in this category processes input in your browser and makes no network request with it.

These cover the routine tasks that come up constantly in day-to-day work: making an unreadable JSON payload legible, checking why a token is being rejected, encoding a URL that keeps breaking, or generating identifiers for test fixtures.

Developer & Data tools

Frequently Asked Questions

Is it safe to paste tokens and API responses here?

The processing itself is safe — everything runs in your browser and nothing is transmitted. Still treat any live credential as a credential: avoid pasting production tokens into tools generally, and revoke anything you suspect has been exposed.

Do these tools work offline?

Once a page has loaded, the tools run without further network access, since all processing is local. The page itself still needs to load first.

Why use these instead of a command-line tool?

For quick one-off checks there is nothing to install, and the output is formatted for reading rather than piping. For anything scripted or repeated, a command-line tool is the better choice.

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