Convert what is here.
Keep it on this device.
Choose local files, inspect their bytes, and use only the browser-bundled adapters listed below. Nothing uploads. Unsupported formats remain visible with the exact adapter boundary.
Choose local files
Files are read one at a time, bounded to 32 MiB each, and never sent over the network.
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Conversion queue
Preview and download results one file at a time. A failed item never turns another item green.
Select a file to see conversion limits and loss disclosure.
Availability is explicit
Browser-bundled adapters cover UTF-8 text, JSON, JSONL, CSV, TSV, Markdown, and bounded binary-to-Base64 output. PDF, image, audio, video, archive, spreadsheet, and code adapters that are not bundled remain listed as unavailable. The site does not discover tools from PATH, download converters, or claim a successful conversion without a validated in-memory result.