20 votes

Extract attachments from .eml file

From the definition of munpack: Unpack messages in MIME or split-uuencode format. Munpack are utilities for encoding and decoding (respectively) binary files in MIME (Multipurpose Internet Mail ...
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  • 1,447
11 votes
Accepted

Audio cassette to MP3 or CD

You could use Audacity. Features: Free, open-source and multiplatform software. Includes processing options for removing noise, and normalising volume. Can detect silence between tracks to help with ...
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10 votes

Split video into pictures

You can use FFmpeg: Free and open-source Runs on Windows, Mac and Linux Allows to split video into pictures: e.g. ffmpeg -i input.mov -r 0.25 output_%04d.png to get a picture every four seconds. Is ...
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8 votes
Accepted

Software for converting MP4 to animated GIF

ffmpeg Can convert from mp4 to gif. You can apply some effects or resize the video to balance between quality and file size. You haven't posted your mp4 sample, so I am using my own. Plain ...
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  • 929
7 votes

Split video into pictures

If you prefer to have a graphical user interface and need to export every frame, you can use VirtualDub: free and open source Windows File -> Export -> Image sequence:
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7 votes

Automatically turn MIDI files into .wav or .mp3

You can use TiMidity++: free and open source CLI Linux and Windows (although it seems to be painful to make it work on Windows, but maybe things have improved since then) can convert MIDI files into ...
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6 votes

Freeware DVD to MP4 converter

I have used Handbrake for this. It is open source and available for Windows, Mac and Linux. You can set it to transcode the subtitles and / or select sound tracks if these are available on the DVD. ...
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  • 1,738
4 votes

Automatically turn MIDI files into .wav or .mp3

You can use SoX - Sound eXchange: free and open source CLI cross-platform (Windows, Linux, MacOS X, etc.) can convert MIDI file to WAV: sox -t raw -r 44100 -e signed -b 16 -c 1 raw_audio audio.wav
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4 votes

Free software that converts .zip to .exe?

You can use PeaZip: free and open source cross-platform allow to create self-extracting archive Other tools: http://en.wikipedia.org/wiki/Self-extracting_archive : Several programs can create ...
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4 votes

Is there a free video converter that allows you to adjust color settings (filters) like brightness, contrast, and gamma?

I can't believe that in the other question no one mentioned Avidemux. free / open-source cross-platform graphical interface filters for hue, contrast, brightness, color and many others (from Video ...
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  • 4,720
4 votes

.mkv to .m4v converter for Windows

VLC is a free and open source cross-platform multimedia player and framework that plays most multimedia files as well as DVDs, Audio CDs, VCDs, and various streaming protocols. Including both of the ...
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4 votes

.mkv to .m4v converter for Windows

According to Wikipedia, m4v is a video container format for x264, AAC and Dolby Digital. Knowing this, you can import your video in Avidemux and configure codecs like: To add even more compatibility ...
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  • 4,720
4 votes

Fast mp4 to mp3 converter

FFmpeg is the media converter. If you don't want to use a command line to access it, use the FFE frontend if you're on Windows. FFE uses your existing installation of FFmpeg (which must be added to ...
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  • 236
3 votes

Icon font to PNG converter

Yes, as discussed in comments, ImageMagick will do your task quickly and a efficiently. To do what you want in windows you could use this (windows) batch file: (Just change the background colour (bg) -...
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3 votes

.mkv to .m4v converter for Windows

Handbrake is an open source video transcoder for Windows, Mac OS X, and Linux that supports the .mkv and .m4v formats.
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  • 249
3 votes

Free, lightweight, all-in-one, audio and video format converter

Xmedia Recode General Freeware Easy to use Portable version available (11 MB small) Uses ffmpeg (among others) Windows only Functions Video / Audio Conversion: XMedia recode can convert ...
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  • 630
3 votes
Accepted

Software to convert .NEF to .JPG

Imagemagick can read NEF files to output jpeg or a wide range of other formats. Free/Gratis Cross platform Command Line conversion Batch conversion Lots of input & output formats: ~$ identify -...
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3 votes
Accepted

Media-converting software suitable for Chromecast

You can use FFmpeg: Free and open-source Cross platform and can be complied for RaspberryPi Is CLI so you can batch.
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3 votes

SWF to EXE converter

You can use Adobe Windows Flash Player Projector: free Windows create .exe from SWF through "File -> Create projector": Note that for some versions of Windows Flash Player the option "File -> ...
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3 votes

Extract attachments from .eml file

If you want to get hold of MIME parts that don't have filenames, e.g. the text and HTML, then try sudo apt install maildir-utils mu extract source.eml --save-all Docs: https://manpages.debian.org/...
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  • 131
3 votes

Fast mp4 to mp3 converter

Try FFmpeg (open source, Windows / Linux / Mac OS X). This answer from Super User provides two commands that should work: ffmpeg -i filename.mp4 filename.mp3
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3 votes
Accepted

Windows program to fix unbalanced M4A/AAC audio files

Audacity is a very powerful application, open source, free, for Windows. I have used it to alter many hours of bad audio. It includes a wide range of effects. You really can fix just about anything ...
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  • 599
3 votes

Software for video trimming and/or mkv to mp4 converting without any quality loss

I would just use FFMPEG: Free, Gratis & Open Source Cross Platform - Runs on just about everything Cut & join mkv without loss of quality, just supply the start time(s) and duration for each ...
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2 votes

Software to convert .NEF to .JPG

Pretty much all free / open-source RAW converters, including all the other recommendations given so far (ImageMagick and Darktable), are based on the dcraw command-line tool by Dave Coffin. Dcraw can ...
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2 votes

Command line tool for converting between 3D formats

I would suggest taking a look at the Blender import and output formats - I am reasonably sure that most of what you are asking for are available. If they are you can run blender from the command line ...
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2 votes

MKV to AVI convertor?

You could try this mkv to avi converter. It is an online service. The file upload limit is 150MB, but you can use it for free and as many times as you want.
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  • 21
2 votes

MKV to AVI convertor?

Transmageddon is another solution. It is available in the repository for Ubuntu/Mint Linux or Deb versions. Not batch capable. But, It WILL transcode .mkv to another format (vid & audio) or ...
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  • 21
2 votes

MKV to AVI convertor?

I can recommend three. One: HandBrake. This tool is a free and open-source multi-threaded transcoding app. It supports nearly any videos including WMV format and has Mac version and Windows version. ...
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2 votes

Automatically turn MIDI files into .wav or .mp3

timidity + FFmpeg for MP3 output And for MP3 conversion you can put it together with timidity + ffmpeg: sudo apt install timidity ffmpeg timidity MIDI_sample.mid -Ow -o - | ffmpeg -y -f wav -i - ...
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2 votes

Software to convert Video CD/DVD to single file with Xvid format

I did what i need using VLC media player. To install ** VLC media player** you may use your package manager (such as Synaptic) or may use following command: sudo apt-get install vlc After ...
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