Free MP4 to AVI Converter

Main window

A free video converter which converts MP4, M4V and MP4V files to AVI or MPG (MPEG-1/2) format. Video files generated by the program can be played on most mobile devices (iPhone, iPad, Samsung Galaxy, etc.). These files can also be imported by most programs for the processing of video files (including Windows Movie Maker).

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Description

Free MP4 to AVI Converter – Quick start

Free MP4 to AVI Converter is the freeware application which converts MP4, M4V and MP4V files into AVI or MPG (MPEG-1, MPEG-2).

MP4 files are commonly used in video sites (YouTube), portable players (iPod, PSP), mobile phones (iPhone) and other devices. Unfortunately, many players and video editing software does not support the MP4 format. In this case, it is necessary to convert MP4 file to more common formats such as AVI or MPG.

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The program has a number of predefined settings (profiles) specially designed for novice users. While more advanced users can customize video and audio encoding parameters used by encoder: audio and video codec, audio and video bitrate, fps, sampling frequency, resolution, volume and other.

The application interface is a very simple and user-friendly. To convert video files, just drag & drop them into main window and click Convert button on the toolbar.

At default settings, the application converts files using Xvid video encoder and MP3 audio encoder, and automatically selects all the encoding parameters so as to preserve the original video and audio quality.
Most portable and fixed players should have no problems playing AVI files created with these settings

The program is available in both 32 bit and 64 bit version. The conversion process of the 64-bit version is faster by a few to 25% (depending on the selected video encoder).

Screenshots

Main window

Compact view

Conversion

File properties

Errors

The most important features

Converting from MP4, M4V and MP4V to AVI or MPG.
Limited support for other video formats (including AVI, MKV, WMV, MP4, FLV, MTS, OGM, AMV).
Decoding the most important audio and video codecs used in MP4 files: MPEG-4 AVC/H.264, AAC, MP3, MP2, MPEG-1 Audio Layer 1 etc.
Supported video encoders: H.264 (x264), XviD, DivX 3, WMV, MPEG4-FFmpeg, S-Mpeg 4 v. 2, Motion JPEG (MJPEG), HuffYUV, MPEG-1, MPEG-2.
Supported audio encoders: Lame (MP3), MP2, AC3, AAC, WMA, PCM 16-bit.
Support for multithreaded encoding using the H.264 (x264) encoder.
A number of predefined conversion profiles. Possibility to save your own settings to an INI file.
A large number of encoding parameters: audio and video bitrate, fps, number of channels and audio sampling, the volume, change the resolution, scaling and cropping the image, and others.
Possibility of 2-pass encoding, which will increase the image quality and reduces the volume of output file.
The ability to save encoder commands in a BAT file.
The program is portable: it does not use system registry and all settings are stored in INI files. Thus, the program can be run from portable devices such as pendrives, removable drives.
The program has a built-in support for multiple languages. Current version supports Chinese (simplified), Czech, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Latvian, Polish, Portuguese (BR), Russian, Serbian, Spanish, Swedish, Turkish.
100% freeware! – for private and commercial use. The program does not require registration, there is no built-in limitations, does not add to the generated files “watermarks”, etc.

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End User License Agreement

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3rd party software

To encode the video files the program uses the FFmpeg encoder (ffmpeg.org).

To retrieve information about video files, the program uses the library MediaInfo.dll (http://mediainfo.sourceforge.net/).

The program is accompanied by a special version of the FFmpeg encoder, adapted to the needs of the program. Not recommended to use other versions of FFmpeg.

Changelog

Version 1.17 (2021.01.22)

New conversion engine (FFmpeg) and multimedia information library (MediaInfo).
Information about the conversion progress is displayed on the title bar of the main window and on the taskbar.
Fixed Stack overflow bug when selecting next files in the list very quickly.
Added support for files from network shares whose names start with the characters \\.
When saving the report to a text file in the File properties window, UTF-8 encoding is used (in previous versions the system default code page was used).
After the user has interrupted the conversion, the program displays a window asking whether to delete the incompletely converted file. Such files usually have a damaged internal structure and cannot be played.
If incorrect parameters are passed to the conversion engine (FFmpeg) and the conversion process fails, the output file will be automatically deleted. Such a file usually does not contain any data (0 bytes in size) and only unnecessarily litter the disk.
The file names, encoder options and some words (error, invalid, unable etc.) are highlighted in the error log window. This makes the log more readable now.
UTF-8 encoding (instead of the system code page) is used when writing the error log to a text file.
The ability to save the log also to an HTML file has been added.
Lots of minor changes and fixes to the source code and the program interface.

Version 1.16 (2019.11.04)

New conversion engine (FFmpeg) and multimedia information library (MediaInfo).
Added the ability to copy and paste encoder settings.
Added support for Material Exchange Format files (MXF).
Highlighting with separate colors of audio and video streams in the File Info window for easier identification.
New About window displaying additional information.
Support for Windows XP was dropped. Windows Vista or later is required. Maintaining compatibility with Windows XP would prevent the use of new technologies, audio and video encoders, and new FFmpeg features only available for Windows Vista and newer.
Slovenian translation.

Version 1.15 (2018.09.13)

Updated conversion engine (FFmpeg) and media information library (MediaInfo).
Added option to save the creation, last access and last write time of the source files in the output files.
New video filters: color conversion to grayscale or sepia, brightness, saturation, flip horizontal, flip vertical, rotation, negative.
Displaying the size of the resulting file during conversion.
Highlighting the conversion speed and highlighting the number of the current pass during two-pass conversion.
A new control displaying a list of pre-defined video resolutions. All resolutions that meet the 16:9 aspect ratio are highlighted in green, 4:3 – light red. The list has also been complemented with slightly less used resolutions.
The control displaying the list of profiles has been changed. Now additional separators are displayed between the profiles, which increases the readability.
Changed the position and size of some interface elements, mainly related to facilitating access to advanced program options.
A small changes to many controls: file list (table), buttons, audio volume slider, menus, some panels…
The error causing displaying of negative values of processed data after exceeding the 2GB threshold has been fixed.
Lots of smaller improvements and bug fixes.

Version 1.14 (2018.02.21)

Updated conversion engine (FFmpeg) and media information library (MediaInfo).
New module: Check for updates.
Added the ability to select visible columns from the context menu of the file list and from the main menu.
Automatic scrolling of text in the window with the conversion progress.
Bug fixes and enhancements.

Version 1.13 (2017.02.22)

New conversion engine (FFmpeg) and multimedia information library (MediaInfo).
Restored compatibility with Windows XP.
Changes in the program interface: modified toolbar and menus.
New window: Tools Info
Bug fixes and enhancements.
Program name was changed from Pazera Free MP4 to AVI Converter to Free MP4 to AVI Converter.

Version 1.12 (2016.09.16)

From now the program is also available in a 64-bit version.
New conversion engine (FFmpeg) and multimedia information library (MediaInfo).
New action: Uncheck selected files.
The default video encoder was changed from H.264 to Xvid, which is more “native” to AVI files.
Added support for Swedish language.
Minor bug fixes and enhancements.
Support for Windows XP was dropped. Windows Vista or later is required.

Version 1.11 (2016.07.08)

New conversion engine (FFmpeg) and multimedia information library (MediaInfo).
New columns: video codec, video codec ID, video profile, video bitrate, width, height, resolution, display aspect, frames/sec., scan type, bits/pixel, video stream size, audio codec, audio codec ID, audio profile, audio bitrate, channels, sampling, audio stream size.
New actions: Uncheck all files, Check selected files, Clear file list
Minor bug fixes and enhancements.

Version 1.10 (2016.05.24)

Changed toolbar.
New icons.
New file list control with many additional features (sorting, row and column moving…).
New version of the FFmpeg and MediaInfo library.
Possibility to set the default video encoder by the user.
Better support for MP4 files.
Added support for additional languages: Chinese (simplified), Finnish, Hungarian, Russian

Version 1.9 (2014.06.16)

Changes in the program interface.
Added possibility to set the display aspect ratio.
New version of the FFmpeg and MediaInfo library.
Better detection of data streams in video files.
New conversion profiles.
Added support for Latvian language.

Version 1.8 (2013.11.22)

New version of the FFmpeg and MediaInfo library.
Fixed saving audio codec ID when converting audio to AC3 and AAC.
Possibility to adding to the processing list of all supported files from the selected folder and its subfolders.
Closing the window with the conversion progress at the end of the conversion process.
Improved reading and writing of encoder parameters from/to profiles.
Improved detection of data streams in video files.
Added support for additional languages: Greek, Portuguese, Turkish.

Version 1.7 (2013.04.06)

New version of the FFmpeg that supports the latest versions of the x264, LAME, XviD and other encoders.
New version of the MediaInfo library.
Added ability to set the number of encoding threads using the x264 encoder.
Changed the application toolbar.
Changed the default video codec from XviD to H.264/MPEG-4 AVC (x264).
Removed automatically adding a program icon to the system tray after startup. This icon is added only after selecting the Minimize to system tray command.
Fixed a list of a video bitrates.
Improved matching of encoding parameters with automatic settings.
Improved detection of data streams in video files.
Improved interrupting the conversion process.
Saving and restoring size of the window with the progress of the conversion.
Added support for additional languages: Czech, French, German, Italian, Serbian, Spanish.

Version 1.6 (2011.12.04)

New version of the FFmpeg encoder and MediaInfo library.
Improved matching of encoding parameters with automatic settings.
Japanese language support.

Version 1.5 (2011.10.22)

New version of the FFmpeg encoder.
Added mechanism to support multiple languages.
Improved matching of encoding parameters with automatic settings.
From now the program is distributed in the form of the installer.
Bug fixes.

Version 1.4 (2011.05.07)

The new version of the FFmpeg encoder.
A much improved matching of encoding parameters with automatic settings.
Support for new versions of the XviD, LAME, and H.264 (x264) encoders.
Added support for multithreaded encoding using the H.264 encoder.
Added support for all major video formats (including AVI, MKV, WMV, MP4, FLV, MTS, OGM, AMV). However, FFmpeg encoder was compiled with the parameters chosen for decoding audio and video streams used in MP4 files, so support for other formats is not complete.
Added the ability to deinterlace video.
Through the use of library MediaInfo.dll, the program displays very detailed information about the selected video file.
Numerous modifications to the source code and bug fixes.

Version 1.3 (2009.03.14)