Privacy workflow

Convert safely — private, in-browser

Convert photos, PDFs, and audio on your device. No CalculioHub upload of your files — pick the format, convert, then share.

1. 1

   HEIC → JPG

   Unlock iPhone photos for email, web, and Windows.

   Open tool →

2. 2

   PDF merge & split

   Combine or extract pages without a cloud account.

   Open tool →

3. 3

   MP4 ↔ MP3

   Pull audio from video privately in the browser.

   Open tool →

4. 4

   PNG ↔ JPG

   Shrink images for email with quality presets.

   Open tool →

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