Do I need to create an account?

No. ToolHive tools are designed for quick copy-paste use without login.

Can I use it on mobile?

Yes. The tool layout is responsive and works on modern mobile browsers.

Runs locally in your browser. Your input is not uploaded to ToolHive.

Convert CSV to JSON and JSON to CSV with headers and clear errors.

Transform table data and API fixtures locally before pasting into another tool.

Input

Result

First row is header

This tool runs locally in your browser. Your input is not uploaded to ToolHive.

Debug API responses and payloads.

Prepare snippets for documentation or tickets.

Check copied text before sharing it.

More tools from the same category for adjacent workflows.

Data Tools

Convert Unix timestamps to dates and dates back to seconds or milliseconds.

Convert API timestamps to local and UTC time without sending values to a server.

Encode and decode Base64 or URL text locally.

Handle encoded payloads, query strings, and copied tokens in the browser.