Convert video, music, pictures, documents and discs - free, simple, and all in one app.
Windows · macOS · Linux
- Everything in one place - video, music, pictures, PDFs, eBooks and DVDs. No need for five different apps.
- Nothing extra to install - everything FMX needs comes inside the download. Install it and start converting.
- Clean and calm - a simple, modern window inspired by GNOME and Ubuntu, with smooth animations and no clutter.
- Light and dark mode - follows your system, or pick one yourself.
- Right-click to convert - choose files in your file manager, right-click, and pick Convert with FMX.
- Many files at once - add a whole folder; FMX works on several files side by side and shows the progress of each.
- Speaks your language - English, Español, Français, Deutsch and עברית.
- Free, no ads, no account - open source and free forever.
- Pick what you want to make - choose a category on the left (Video, Audio, Image…) and click a format, like MP4 or MP3.
- Add your files - drag them into the window, or click Add files.
- Click "Add to queue" - that's it. Your new files are saved next to the originals (or in a folder you choose).
The default settings work well for most people. If you want more control, open Output settings or Edit to trim, crop, rotate or add subtitles.
When everything is done, FMX can play a sound, show a notification, open the folder - or even shut down your computer.
| 🎬 Video | Convert to MP4, MKV, WebM, MOV, AVI, GIF and more. Trim, crop, rotate, add subtitles or a watermark. |
| 📱 Phones & devices | Ready-made settings for iPhone, iPad, Android, smart TVs, YouTube, WhatsApp, PlayStation and Xbox. |
| 🎵 Audio | Convert to MP3, M4A, FLAC, WAV, OGG and more. Pull the sound out of any video. Make iPhone ringtones. |
| 🖼️ Pictures | Convert to JPG, PNG, WebP and more. Resize, rotate, make black-and-white. Opens iPhone (HEIC) photos. |
| 📄 Documents | Pictures → PDF, PDF → Word, Excel or pictures, Word/Excel/PowerPoint → PDF. Merge, split and shrink PDFs. Convert eBooks. |
| 💿 DVD / CD | Copy DVDs and Blu-rays to video files, rip music CDs, and make or open ISO disc images. |
| 🔧 Extras | Join videos or songs, make a video smaller, change speed or volume, remove a logo, download videos from a link, record your screen. |
See every supported format
Video: MP4 (H.264 · H.265) · MKV · WebM · MOV · AVI · FLV · WMV · MPG · VOB · TS · OGV · 3GP · SWF · GIF · Animated WebP
Audio: MP3 · AAC · M4A · M4R ringtone · FLAC · WAV · OGG · Opus · WMA · AIFF · AC3 · MP2 · WavPack · MKA · MMF · AMR · APE
Image: PNG · JPG · WebP · BMP · TIFF · GIF · ICO · TGA · QOI · AVIF · JPEG XL · PCX
Documents: PDF · Word · Excel · TXT · HTML · EPUB · FB2 · MOBI / AZW3 (with Calibre)
Discs: DVD · Blu-ray · Music CD · ISO · CSO
Get the file for your computer from the latest release:
| Your computer | Download | Then |
|---|---|---|
| Windows 10 / 11 | …-windows-x64-setup.exe |
Double-click it and follow the steps. |
| Mac (Intel or Apple) | …-macos-universal.dmg |
Open it and drag FMX to Applications. |
| Ubuntu / Debian | …_amd64.deb |
Double-click it to install, or run sudo apt install ./fmx_*_amd64.deb |
| Other Linux | …-linux-x86_64.tar.gz |
Unpack it and run fmx - no install needed. |
Windows says "Windows protected your PC"? Click More info → Run anyway. This appears for new apps that aren't from a big company.
Mac says FMX "can't be opened"? Right-click FMX in Applications and choose Open the first time.
Select one or more files in your file manager, right-click, and choose Convert with FMX:
| Files | You can turn them into |
|---|---|
| Videos | MP4 · MKV · WebM · GIF · MP3 (just the sound) |
| Music | MP3 · M4A · FLAC · WAV · Opus |
| Pictures | JPG · PNG · WebP · PDF (all pictures in one PDF) |
| Word, Excel, PowerPoint | |
| eBooks | PDF · TXT · EPUB · FB2 |
| Word · TXT · Pictures |
FMX starts right away and saves the new files next to the originals. Choose Open in FMX instead if you want to change the settings first.
- Windows 11: it's under Show more options.
- Linux: in Dolphin and Nemo it's in the menu; in Files (Nautilus) and Caja it's under Scripts.
- Turn it on or off any time in Settings → General → Right-click menu. (Not available on Mac.)
Open Settings → General → Appearance and pick System, Light or Dark. If animations bother you, turn on Reduce motion.
FMX checks for a new version once a day. When one is ready, a small blue dot appears on Settings - open Settings → Updates and click Update now. Nothing pops up while you work.
Every update is digitally signed, so FMX only installs genuine releases from this page.
A few tools need a free program that FMX doesn't include because it's very large. If you have it installed, the tool just works; if not, FMX shows it greyed out with a short note.
| To… | Install |
|---|---|
| Turn PDFs into pictures, Word, Excel or text, or merge/split PDFs | Poppler (poppler-utils) |
| Make PDFs smaller | Ghostscript |
| Convert Kindle books (MOBI, AZW3) | Calibre |
| Turn a folder into an ISO | xorriso |
Convert old .doc / .ppt files |
LibreOffice |
You can check what's installed in Settings → Programs.
- Open Settings → General and turn on Debug logging.
- Try the same thing again.
- Click Open logs folder and attach the files when you report the problem.
If FMX closes unexpectedly, it saves a crash report in the same folder and tells you about it the next time it starts.
Good to know
- Copy-protected DVDs and Blu-rays can't be converted.
- On Linux with Wayland, the screen recorder can only record some windows. Log in with an "Xorg" session to record the whole screen.
- On Windows and Mac, choose your language in Settings → General (it isn't detected automatically yet).
- On Ubuntu, turn off the right-click menu in Settings before uninstalling FMX.
FMX is free to use, share and change, under the MIT or Apache 2.0 license.
Want to build FMX yourself or help out? See DEVELOPMENT.md.