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TinyTool, Everywhere You Work.

Install TinyTool as a lightweight desktop or mobile app. Since everything runs locally, it stays fast and functional even when you're completely offline.

Open in Chrome, Edge, or Safari to install as an app.

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Zero Latency

No server round-trips.

Instant Launch

Opens like a native app.

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AI-powered processing, larger files, and server-side tools — things browsers can't do.

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From the Blog

Guides, tips, and deeper dives into our tools

Featured
6 min readApr 24, 2026

How to Convert JSON to CSV Online (Free, No Data Mangling)

An API gives you JSON. Your analyst wants Excel. In between, nested objects get mangled, commas slip into fields, and leading zeros vanish. Here's how the conversion actually works, the gotchas that break real datasets, and how to turn JSON into a clean spreadsheet entirely in your browser.

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