Every tool in the DataFmt toolbox follows the same principle — all processing happens in your browser, with nothing sent to our servers. That means you can safely work on sensitive spreadsheets, financial exports and user-data snapshots without them ever leaving your device.
We organise tools by intent rather than by technology: if you need to move data between formats, go to Conversion; if you mostly wrestle with JSON, the JSON Tools section has the essentials; for general-purpose pretty-printing there is the Formatters group. You never have to remember the exact name of a tool — just match it to what you are trying to do.
Each tool has its own page with detailed instructions, typical scenarios and FAQ, with independent Chinese and English URLs that are easy to bookmark and share inside a team knowledge base.