Fifty files, any mix.
One format back.

Any formats from the same category. One Images run can hold PNG, JPG, HEIC, TIFF, SVG, WEBP, GIF, BMP and AVIF together; one Documents run can hold DOC, DOCX, ODT, RTF, TXT and PDF. A file from another category is flagged before upload and left out.

They are kept exactly as they are — not re-encoded, not charged — and go into the ZIP next to the converted ones.

Tick “Encrypt the output”, choose ZIP or 7z, type the password twice and confirm you understand it cannot be recovered. The converted files are sealed into one AES-256 archive on our server and the unencrypted copies are deleted the moment it exists. 7z encrypts the file names too. Windows’ built-in unzip cannot open encrypted archives — use 7-Zip, Keka, WinRAR or our free in-browser unlocker.

Yes. Tick “Remove metadata from every file” and each file is stripped after converting — EXIF and GPS from photos, authors and revision history from documents, tags from audio and video — before anything is zipped or encrypted. Files already in the target format are cleaned too, and count like a conversion. The same engine powers our Remove metadata tool.

Up to 50 files per run, each within your plan’s file-size limit (5 GB on Business), and up to 5 GB per run in total.

Each converted file uses credits from your monthly pool, exactly as it would one by one. Files kept as they are cost nothing, and a file that fails to convert is refunded.

Yes. POST the files to /api/multi/convert with a category and a to format, poll /api/multi/{id}, then download the ZIP — or call /api/multi/{id}/protect for an encrypted archive. GET /api/multi/formats lists every category and format. See the API docs.