Pebblemorph

Every file you download, ready to open.

Pebblemorph watches your Downloads folder and turns awkward files into formats every device opens: HEIC photos into JPEG, MKV videos into MP4, heavy PDFs into light ones. On your computer, without uploading anything.

No account. No card. Your files stay on your computer.

Downloads4 converted, 1 left as it is
ArrivedSizeBecameSize
IMG_4021.heic3.4 MBIMG_4021.jpg2.1 MB
bank-statement.pdf14.8 MBbank-statement.pdfsame pages, lighter2.6 MB
voice-memo.wav52.9 MBvoice-memo.mp37.2 MB
holiday.mkv1.42 GBholiday.mp4copied in seconds, picture untouched1.42 GB
contract-signed.pdf3.1 MBleft as it isdigitally signed: rewriting it would break the signature 

Prices

Every feature is free for 30 days. After that, pick the licence that suits you.

Yearly

€10a year

Renews each year. Cancel whenever you like.

Buy yearly

Lifetime

€60once

Pay once and keep it, updates included.

Buy lifetime
  • Each licence covers 3 computers, Mac and Windows mixed.
  • Need more? Extra computers are €5 each, paid once, up to 10 per licence.
  • Prices include VAT.
  • Not convinced? Full refund within 14 days of any payment.

Safe with your files

A program that touches your files has to be careful. These are the rules Pebblemorph follows.

Your files never leave your computer

Every conversion happens on your Mac or PC. Nothing is uploaded, ever.

Originals are never lost

The original goes to the Trash, where you can put it back, or stays next to the new file if you prefer. Nothing is overwritten.

Sensitive documents are never rewritten

Signed, certified or password-protected PDFs and archival PDF/A are not compressed, and you see why. If you choose to turn PDFs into another format, the original of such a document stays next to the new file.

Nothing half-finished

A download is converted only once it has finished. A file that can't be converted cleanly stays as it was, and you see why.

No account, no tracking, no ads

Only the licence check goes over the internet, about once a week: the code and your computer's name. During the trial, nothing at all, unless you ask it to install LibreOffice.

Built on tools the world relies on

FFmpeg, LibreOffice, Pillow and other open-source projects do the converting. Their licences are inside the app.

What it converts

Out of the box, four kinds of file are converted. Everything else waits until you choose a format for it.

Kind of fileArrives as, for exampleBecomes
PhotosHEIC, WebP, AVIF, PNG, TIFFJPEG
VideosMOV, MKV, AVI, WebMMP4
Music and audioWAV, FLAC, M4A, OGGMP3
PDFs over 2 MBPDFthe same PDF, lighter
Documents, spreadsheets, presentations, e-books, archives, fonts, subtitles, dataDOCX, XLSX, PPTX, EPUB, RAR, 7zleft as they are until you pick a format

Every choice can be changed in the settings. To convert files you already have, choose a folder and use Convert now.

Download

Mac with Apple silicon (M1 or later)macOS 12 or laterComing soon
Mac with an Intel processormacOS 11 or laterComing soon
Windows PCWindows 10 or 11, 64-bitComing soon

Pebblemorph is almost ready. Write to support@pebblemorph.com and I'll let you know as soon as it's out.

Not sure which Mac you have? Apple menu, About This Mac: it says “Chip Apple M…” or “Processor Intel”.

The first time you open it: Pebblemorph is not yet signed with Apple and Microsoft certificates, so your computer asks you to confirm. On a Mac: System Settings, Privacy & Security, Open Anyway. On Windows: More info, Run anyway.

Word, Excel, PowerPoint files and e-books also need LibreOffice, which is free: Pebblemorph installs it for you when you ask.

Who makes it

Pebblemorph is made by Ludovico Rossi, an independent developer in Italy. Questions, problems, ideas: write to support@pebblemorph.com and I'll reply personally.

Questions

What happens when the trial ends?

Pebblemorph stops converting and leaves your files as they are. Your settings are kept. Enter a licence code and it picks up where it left off.

Does it need the internet?

No, it converts offline. With a licence it checks in with the store about once a week; if it can't reach it, it keeps working.

Can I use it on both Mac and Windows?

Yes. One licence covers up to 3 computers in any mix. You can free a computer from the app and use that slot on another.

It converted something I wanted to keep as it was.

Restore the original from the Trash. In the settings you can set any kind of file to “Keep as is”, or keep every original next to the new file.