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Videomass is a free, open source and cross-platform GUI for FFmpeg and youtube-dl, concatenate (mux or encode videos), presets manager, conversions. This audio/video converter is user friendly for beginners and more advanced users. Using the step by step interface (GUI) you can simply choose a preset or make your own. For the people that are familiar with FFmpeg there is the possbility to easily make your own presets using the FFmpeg command line or make a preset through the GUI and adapt this to your specific needs. It offers out of the box output to all possible file formats like MP4, MKV, MOV etc. Video: MPEG-4, H.264/AVC, H.265/HEVC, VP9 and audio: AAC, MP3, OPUS, WAV, FLAC or AC-3 and subtitles and much more! Also you can copy streams (lossless video and/or audio) and extract audio. Finally it has a simple timeline editor, extended multimedia information and optional YouTube downloader.

Main features

  • No ads
  • Multi-Platform, work on Linux, MacOs, Windows, FreeBsd.
  • Batch processing.
  • Log file automatically saved.
  • Multi-panels, switch between panels using keyboard shortcuts.
  • Audio video encoding.
  • Download videos from hundreds of sites.
  • Multi language support (English, Italian, Russian, Dutch, Portuguese-BR, Spanish)

Using FFmpeg

  • Drag and drop to add multiple files simultaneously.
  • Fully customizable presets and profiles.
  • Possibility to create your new presets and profiles from scratch.
  • Has useful presets to start with.
  • Supports all formats and codecs available with FFmpeg.
  • Madia file info and stream analyzer.
  • Shows the estimated time of arrival during encodings.
  • Concatenate.
  • Create video from still image and audio file.
  • Extract images from video
  • has useful tools for evaluating the supported features of a specific FFmpeg build.
  • Audio stream mapping using indexes.
  • Advanced dialogs for setting video filters such as:
    • Resizing
    • Cropping
    • Rotation
    • Deinterlacing
    • Denoise
    • Stabilization
  • Audio filters for volume normalization:
    • PEAK, RMS and EBU-R128 normalizers.
    • PEAK and RMS volume analysis reporting.
    • Ability to apply volume normalization only for certain audio streams in videos.
  • Timeline editor:
    • Convenient display for viewing the time selection.
    • Duration and seek are set with the slider controls.
  • …and much more

Using youtube-dl or yt-dlp

  • Possibility to choose between two downloaders: youtube-dl or yt-dlp
  • Download from multiple URLs (YouTube and more sites, over 200 are currently supported).
  • 5 download modes:
    • Precompiled Videos (best or worst)
    • By set preferred resolution and format.
    • Download split audio and video.
    • Download Audio only.
    • Download and merge audio and video by selecting “format codes”.
  • Shows download statistics.
  • Ability to playback individual URLs and different qualities.
  • Ability to download playlists.
  • Ability to index playlists to download.
  • You can enable or disable the SSL certificate check.
  • Embed thumbnail in audio file (via atomicparsley).
  • Add metadata to file.
  • Write subtitles to video.
  • Ability to include IDs in filenames.
  • Ability to restrict file names.
  • Ability to keep youtube-dl backend updated (only available for *.AppImage).