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Kdenlive 25.04.1

Kdenlive is an acronym for KDE Non-Linear Video Editor. It works on GNU/Linux, Windows and BSD. Through the MLT framework, Kdenlive integrates many plugin effects for video and sound processing or creation. Furthermore Kdenlive brings a powerful titling tool, a DVD authoring (menus) solution, and can then be used as a complete studio for video creation.

Kdenlive supports all of the formats supported by FFmpeg or libav (such as QuickTime, AVI, WMV, MPEG, and Flash Video, among others), and also supports 4:3 and 16:9 aspect ratios for both PAL, NTSC and various HD standards, including HDV and AVCHD. Video can also be exported to DV devices, or written to a DVD with chapters and a simple menu.

Video editing features:

  • Multi-track editing with a timeline and supports an unlimited number of video and audio tracks.
  • A built-in title editor and tools to create, move, crop and delete video clips, audio clips, text clips and image clips.
  • Ability to add custom effects and transitions.
  • A wide range of effects and transitions. Audio signal processing capabilities include normalization, phase and pitch shifting, limiting, volume adjustment, reverb and equalization filters as well as others. Visual effects include options for masking, blue-screen, distortions, rotations, colour tools, blurring, obscuring and others.
  • Configurable keyboard shortcuts and interface layouts.
  • Rendering is done using a separate non-blocking process so it can be stopped, paused and restarted.
  • Kdenlive also provides a script called the Kdenlive Builder Wizard (KBW) that compiles the latest developer version of the software and its main dependencies from source, to allow users to try to test new features and report problems on the bug tracker.
  • Project files are stored in XML format.
  • An archiving feature allows exporting a project among all assets into a single folder or compressed archive.
  • Built-in audio mixer

Highlights from the Kdenlive 25.04.1 update:

  • Fix effect stack layout that sometimes prevented accessing some parameters
  • Fix a crash when loading many clips and switching project profile
  • Further speed increase for audio thumbnails generation
  • Reduce memory usage of the automask feature, allowing to create masks for longer clips

Full Changelog

  • Audio thumbnail generation: set discard flag for all but selected streams to reduce I/O.
  • Fix crash deleting multiple bin clips.
  • Fix crash on profile change while loading clips. See issue #2001.
  • Don't try to cancel finished tasks. See issue #2001.
  • Drop unique_ptr in favor of plain pointers to avoid dangling connections. See issue #2001
  • Ensure the python venv is found before launching mask task.
  • Fix high memory consumption of SAM2.
  • Fix AMF checksum.
  • Fix AMF download url.
  • Fix audio mixer volume spinbox not really changing volume. Commit. See bug #503662.
  • Fix release script catching incorrect version for Kdenlive. Commit.
  • Fix pasting text with multiple lines in notes widget not seeing timecode.
  • Fix crash moving single clip from group and standalone clip. Fixes bug #503626.
  • Fix ghost widget and other layout issues in effectstack. Fixes bug #503562.
  • Fix background removal not starting with box selection.
  • Update copyright to 2025.
  • Fix project corruption when pasting sequences into another project. Commit. Fixes bug #503227.
  • Allow recovering project files with invalid sequence in bin. See bug #503227.
  • Add spinbox with values in titler's gradient editor. See bug #502869.
  • Fix titles cannot be created on first run.
  • Fix titler text shadow angles.
  • Fix title text outline has sharp angles. Fixes bug #437781.
  • Fix editing title text with outline makes text ugly. Fixes bug #503205.
  • Fix bin audio/video icons have wrong color if not using default color theme.
  • Fix inverted logic in titler background previous commit.
  • Titler: disable background type if background disabled. See bug #502869.
  • Audio mix composition should only be allowed on audio tracks.Fixes bug #502998.
  • Don't save disabled built-in effects when saving effect stack. Fixes bug #502973.
  • Fix freeze extracting last clips in timeline. Fixes bug #503149.
  • Nightly Flatpak: Update deps and sync with stable.
  • Nightly Flatpak: Update runtime.
  • Fix built-in flip effect creates orphaned widgets.
  • Fix autosave is too agressive, causes lag in editing (switch minimum interval from a few seconds to 1 minute).