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Free WebM to MP3 Converter

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Bulgarian, Chinese, Czech, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Polish, Portuguese (BR), Russian, Serbian, Slovenian, Spanish, Swedish, Turkish
Windwos Vista, 7, 8, 10


Older versions


Free WebM to MP3 Converter is a totally free program that converts WebMMP4FLV and 3GP files to MP3 or WAV format. Movies in these formats are used by most popular video sites (eg YouTube, Metacafe, Yahoo! Video). Additionally, the program allows you to extract original audio tracks from supported files without loss of sound quality.

Metadata (artist, title, album, etc.) by default are copied from the source files, but the user can add their own tags or completely disable writing metadata to output files.

If you have a collection of music videos downloaded from YouTube and want to convert them to MP3, or save the original sound tracks to audio files, this program is for you!

To convert audio streams to MP3 the application uses the latest version of the LAME encoder. The program supports encoding with a constant bit rate – CBR, average bitrate – ABR and variable bit rate – VBR (based on LAME presets).

Basic operation of the program is very simple: just drag & drop WebM, MP4, FLV or 3GP files into main window and click  button on the toolbar.
More advanced users can customize many encoding parameters: audio bitrate, bitrate mode, number of audio channels, audio sampling frequency, volume, time range and other.


The most important features

  • Converting WebM, MP4, FLV and 3GP files to MP3 or WAV.
  • The ability of extracting original audio tracks from source files without loss of sound quality.
  • The possibility of extraction/conversion any audio track from MP4 files containing multiple audio tracks.
  • Adding tags (artist, album, title, etc.) when converting to MP3 and extracting to OGG and AAC.
  • MP3 compression using the latest version of the LAME encoder.
  • Support for all the LAME encoder presets.
  • A number of predefined conversion profiles. Possibility to save your own settings to an INI file.
  • The ability to customize encoding parameters: bitrate mode (constant – CBR, average – ABR, variable – VBR), audio bitrate, audio sampling frequency, number of audio channels, volume, time range.
  • The possibility to save encoder commands to BAT file.
  • Adding files to the file list by Drag and Drop.
  • 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 Bulgarian, Chinese, Czech, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, 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.

How to uninstall?

If you no longer use Free WebM to MP3 Converter application or if you want to free up space on your hard disk, you can uninstall this program from your computer. To do this, follow these steps:
  1. Open Programs and Features by clicking the button, clicking Control Panel, clicking Programs, and then clicking Programs and Features.
  2. On the list of installed programs select Free WebM to MP3 Converter and then click Uninstall. This will launch the uninstall wizard.
  3. Follow the instructions displayed on the screen.

End User License Agreement

This program is completely free. You can use it without any restrictions, also for commercial purposes.

3rd party software

To encode the audio files the program uses the FFmpeg encoder (

To retrieve information about video files, the program uses the library MediaInfo.dll (

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.


Version 1.5 (2021.02.11)

  • Updated conversion engine (FFmpeg) and multimedia information library (MediaInfo).
  • New MP3 encoder settings: stereo mode (L/R stereo, joint stereo), encoding algorithm quality, lowpass filter.
  • Displaying the output directory on the title bar of the Output panel. This directory is also displayed when the panel is collapsed, so you no longer have to expand it to see where the resulting files will be saved.
  • Information about the conversion progress is displayed on the title bar of the main window and on the taskbar.
  • The metadata settings are now saved to the configuration file and restored the next time the program is started.
  • FFmpeg encoder parameters window (F2): information has been divided into groups displayed on separate lines, which facilitates parameter analysis.
  • Changes in the information module:
    For easier identification, video streams are now highlighted in red, audio – green, subtitles – purple, chapters (menu) – blue.
    The window layout is now saved to the configuration file and restored the next time the program is started.
  • When turning on dark visual styles, the main window icons are slightly darkened to reduce the contrast.
  • 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.
  • Displaying additional information in the error log window.
  • UTF-8 encoding (instead of the system code page) is used when writing the error log to a text file.
  • Improved handling of user-created profiles.
  • Lots of minor changes and fixes to the source code and the program interface.

Version 1.4 (2019.08.22)

  • New conversion engine (FFmpeg) and multimedia information library (MediaInfo).
  • New control displaying the list of profiles. Now additional separators are displayed between the profiles, which increases the readability.
  • New About window displaying additional information.
  • Small changes to other interface elements: audio volume slider, navigation buttons, and more.
  • The error causing displaying of negative values of processed data after exceeding the 2GB threshold has been fixed.
  • Various minor improvements and bug fixes.
  • 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.

Version 1.3 (2018.06.12)

  • New conversion engine (FFmpeg) and multimedia information library (MediaInfo).
  • New modules: Check for updatesTools Info.
  • Changes in the program interface: new navigation buttons, slightly modified toolbar and menus.
  • Added ability to edit output directory list.
  • Added option to save the creation, last access and last write time of the source files in the output files.
  • Added the ability to select visible columns from the context menu of the file list and from the main menu.
  • Bug fixes and enhancements.

Version 1.2 (2016.09.29)

  • New conversion engine (FFmpeg) and multimedia information library (MediaInfo).
  • From now the program is also available in a 64-bit version.
  • Improved reading and writing metadata.
  • New columns: Full file name, Audio codec ID, Audio profile, Menu, Chapters, Chapter title, Chapter start, Chapter end, Chapter No, Artist, Title, Album, Year, Track No, Genre.
  • New actions: Clear file list, Uncheck all files, Check selected files, Uncheck selected files.
  • Displaying a more detailed information about the source files in the File properties window.
  • Possibility to splitting the output files based on chapters stored in the source files.
  • Possibility to hide panel with conversion settings.
  • New visual style: Cobalt XEMedia.
  • Added support for Swedish language.

Version 1.1 (2016.06.22)

  • New conversion engine (FFmpeg) and multimedia information library (MediaInfo).
  • Improved matching of encoding parameters with automatic settings.
  • New file list control with many additional features (sorting, row and column moving…).
  • New columns: Duration, Audio (summary), Audio codec, Audio bitrate, Channels, Sampling, Audio stream size, Video (summary).
  • Better support for WebM, MP4, FLV and 3GP video files.
  • Changed toolbar.
  • New icons.
  • Better support for visual styles.
  • Added support for additional languages: Bulgarian, Chinese, Finnish, Hungarian, Russian.

Version 1.0 (2013.12.20)
Initial release.

Previous versions

Free WebM to MP3 Converter 1.4 32-bit
Release date: 2019.08.22
File size: 15.4 MB
SHA-256 checksum: 0e5046f1561ad82780e44cb4afe6a4b4296dd390b90ee3b1fbd4656c862e3e67
Free WebM to MP3 Converter 1.4 64-bit
Release date: 2019.08.22
File size: 16.7 MB
SHA-256 checksum: 5d32836717a4ab44d0ee0e5ab5b3dcb993655070a58d10ce2304ad5743bab35f
Free WebM to MP3 Converter 1.3 32-bit
Release date: 2018.06.12
File size: 13.9 MB
SHA-256 checksum: 8d827a38c99766d29f56c3d931a2354983d386d67d641441bdeb63402eab3734
Free WebM to MP3 Converter 1.3 64-bit
Release date: 2018.06.12
File size: 15.2 MB
SHA-256 checksum: 823b08b30f003236fa2a03ee8b35df2bed975d00dac085f1d3b3736483d8ec54
Free WebM to MP3 Converter 1.2 32-bit
Release date: 2016.09.28
File size: 17.6 MB
SHA-256 checksum: 79b22d6cad3aca20cfe8fd678a2709255ba6adf193b2ed2da695c879c056cd54
Free WebM to MP3 Converter 1.2 64-bit
Release date: 2016.09.28
File size: 19.6 MB
SHA-256 checksum: 228efe63354b68898f77f4228a26d17a7358a6b31fd845e49efaf0291f67905a
Free WebM to MP3 Converter 1.1 32-bit
Release date: 2016.06.22
File size: 10.5 MB
SHA-256 checksum: cf569982fe5643b155c6f71a4141a1763ecb707ed3dca01a59edce39f2fe4c0a
Free WebM to MP3 Converter 1.0 32-bit
Release date: 2013.12.20
File size: 7.3 MB
SHA-256 checksum: e37377798d09dc12f1e7d2300d9b236ea3efcbc58696029b244d7fbdddbd7eef