Cinder

The file converter,
without leaving the desktop.

Hold Shift on an icon. The wheel opens under the cursor. You pick the format, you let go.

Everything stays on the PC. The original file does not move.

Drag this file
11

File families

Images, video, audio, PDF, documents, EPUB, slides, spreadsheets, subtitles, and archives.

10

Automatic tools

Compress, resize, rotate, split a PDF, extract an archive, mute a video.

5

File actions

Path, Explorer, terminal, copy, and move. The original file stays the source.

Images

⇧shift

Convert

Convert to PNG

Altalt

Tools

Compress

Shift lists the formats. Alt adds the tools, then the same formats. The key still works for Alt+Tab and Ctrl+C. Esc closes the wheel.

Actions

Any file, then Ctrl.

Ctrlctrl

The file

Copy the path

Path and Explorer

The full path goes to the clipboard, or the folder opens in File Explorer with the file in view.

Terminal

A window opens in the file's folder. Useful just before a command.

Copy

A copy is written where you choose. If the name already exists, Cinder finds another.

Move

The file changes folder. A conversion never moves the original: it writes a new file beside it.

Ctrl still works for system shortcuts. The action wheel does not count toward saved minutes.

Formats

Images

JPG PNG WebP BMP GIF TIFF PDF

Shift and Alt

Video

MP4 MP3 MKV GIF WebM WMV AVI

ffmpeg included on Windows

Audio

M4A WMA WAV AIFF FLAC Opus OGG

ffmpeg included on Windows

PDF

TXT MD HTML DOCX EPUB PNG JPG PPTX XLSX

Page images on Windows

Documents

TXT MD HTML PDF DOCX EPUB

DOCX, ODT, and RTF

Slides

PDF JPG PNG

Images on Windows

Spreadsheets

ODS CSV TSV PDF

XLSX, XLS, CSV, ODS

EPUB

HTML TXT MD PDF DOCX

The text of the book

Text

TXT MD HTML PDF DOCX EPUB

TXT, MD, and HTML

Subtitles

VTT SRT TXT

Archives

TAR GZIP

ZIP to extract

On the machine

The files do not leave.

An online converter asks for a copy. Cinder reads the file where it is, and writes the result in the same folder.

Files stay here

No account. Files stay on the machine. On Windows, ffmpeg is included with Cinder. On macOS, it comes from Homebrew. The license identifier is the only thing sent.

The original stays

Never overwritten. If the name already exists, Cinder picks the next one. Two minutes are counted per converted file.

Answers

Four facts.

Does Cinder upload files to the internet?

No. Cinder reads the file where it is and writes the result in the same folder. No account. The file is not uploaded. Only the license identifier leaves the machine.

How much does Cinder cost?

The first 20 successful files are free, then €29.99 once, with no subscription.

Which systems does Cinder run on?

Windows 10 or 11, without administrator rights. macOS 12 or newer: on the first launch, right-click, then Open, then allow Accessibility and Input Monitoring.

Do I need to install ffmpeg?

On Windows, no: ffmpeg is included with Cinder. On macOS, install it with Homebrew. Cinder then looks in /opt/homebrew/bin/ffmpeg, then /usr/local/bin/ffmpeg.

Convert a file without uploading it Alternative to an online converter

Start

One click, and the wheel
is there.

On Windows, the file installs into your account and the shortcut lands on the desktop. On macOS, open the disk image and drag Cinder to Applications. The first 20 successful files are free, then €29.99 once, with no subscription.

Cinder

  • Shift converts, Alt or Option adds the tools, Ctrl or Control acts on the file
  • The icon by the clock, or in the menu bar, shows whether Cinder is on
  • 20 files free, then €29.99 once. No subscription
  • Closing the dashboard hides it. Quit from the icon menu
For Windows For Mac

Windows 10 or 11, without administrator rights. macOS 12 or newer: on the first launch, right-click, then Open. Allow Accessibility and Input Monitoring.