ConvertHub Pro

Unlock ConvertHub Pro

A one-time license. Paste your key below — everything stays 100% in your browser, no account, no server.

Don't have a key yet? Pro is sold on Gumroad — every converter works fully and free without one.

What's in Pro

  • Batch convert

    Drop a folder or N files, convert them all, download a single .zip.

  • Large-file streaming

    Convert 50 MB+ files via the Streams API + IndexedDB without freezing the tab.

  • jq / JSONPath filters

    Pluck just the slice you need before converting (e.g. .users[] → CSV).

  • Formatted XLSX

    Export CSV to Excel with a bold header, column widths, and number/date formats.

  • Schema validation

    Check required columns, types, and min/max before you convert.

  • Saved presets + history

    Recall a frequent conversion in one click — stored on-device (IndexedDB).

  • Keyboard speed

    Cmd/Ctrl+Enter converts AND copies the result in one stroke.

  • Ad-free

    Every ad disappears the instant you unlock.

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