Litesum

Video and audio editing

A multi-track timeline with the editing habits you already have.

Litesum Motion is a video and audio editor built on a GPU-first engine: a multi-track timeline with the keyboard and mouse behaviour of established editors, video decoded and encoded on the graphics card, a colour-managed pipeline, and a real mixer. Everything stays on your machine. It has its own code, its own interface and its own project format.

Explore the appsWhat it can do
Coming soonComing soon · Windows
Native format
.lmotion
Imports
mp4, mov, mkv, webm, mxf, avi · wav, flac, aac, mp3, opus, ogg, aiff, m4a
Exports
MP4, QuickTime, Matroska, WebM, WAVE, PNG sequence
Shortcut profiles
Litesum Motion · Vegas Pro 13 Compatible

What it does

What you can do with Motion.

  • Multi-track editing with familiar keys

    S to split, J/K/L transport, automatic crossfades on overlap, direct trimming with roll, slip and slide, takes, groups, snapping, ripple modes and modifier drags. Shortcut profiles are switchable and held as data.

  • 23 GPU effects, 5 transitions, titles

    Colour (Curves, LUTs, lift/gamma/gain), detail, keying, stylise and geometry families, plus a title generator with outline and shadow. Every parameter animates with keyframes and six easing shapes.

  • Colour management through OpenColorIO

    The display transform is a choice of display and view rather than a mode. Waveform, RGB parade, vectorscope and histogram scopes.

  • A real mixer

    Track strips and buses, automation on gain and pan, stereo and 5.1/7.1 surround panning, and BS.1770 / EBU R128 loudness measurement (measurement only, never correction).

  • Hardware video, both ways

    H.264 and HEVC decoded and encoded on the graphics card through Vulkan Video where the card offers it, written by Litesum rather than shelled out to a tool; software decode otherwise. H.264 and HEVC encode has no software fallback: on a card without an encode queue, Motion refuses by name. AV1 is encoded in software. Deliver MP4, QuickTime, Matroska, WebM, WAVE or a PNG image sequence.

  • Everything stays on your machine

    No uploads, no cloud processing, and no account is needed to edit. Motion makes no network connection while you edit.

Files

What it opens and what it saves.

A wide range of codecs opens, and the combinations above are written.
FormatOpensSavesNotes
.lmotionYesYesNative project. Caches live beside it, never inside it.
Import: mp4, mov, mkv, webm, mxf, aviYesSee export rowsThe Import dialog offers only what Motion can open. AV1 decodes in software.
Import: wav, flac, aac, mp3, opus, ogg, aiff, m4aYesSee export rowsAudio is mixed at the project rate.
Export: MP4—H.264, HEVC or AV1 · AACH.264 and HEVC on the graphics card; AV1 in software.
Export: QuickTime (MOV)—H.264 or HEVC · AAC or PCM—
Export: Matroska (MKV)—H.264, HEVC or AV1 · AAC, PCM or Opus—
Export: WebM—AV1 · OpusEncoded in software.
Export: WAVE—PCMSound only.
Export: image sequence—PNG, 8 or 16 bitPicture only.

Requirements

What you need to run it.

Operating system
Windows, 64-bit.
Graphics
Not needed to edit, play or save. A graphics card is needed only to export H.264 or HEVC; AV1 export is encoded in software.
Hardware encode
H.264 and HEVC encode on the graphics card needs a card with a Vulkan Video encode queue. Motion checks for one and tells you what your machine supports.

Membership

Litesum Motion is included in Litesum Complete.

Planned at £9.99 per month for every released Litesum application, 6 launching together, on 2 computers, cancellable from your account page. Everything you open, edit or export stays on your own computer. It is never uploaded, never used for training and never held behind a subscription.

Explore the appsAbout membership

Coming soon · Windows

Questions

About Motion.

Does it modify my media files?

Never. Source media is read, never written. Caches are disposable and live beside the project, not inside it.

Which formats can it export?

MP4 and Matroska with H.264, HEVC or AV1 video, QuickTime with H.264 or HEVC, and WebM with AV1. Sound is AAC, PCM (in MOV and MKV) or Opus (in MKV and WebM). WAVE for sound alone, and PNG image sequences.

Do I need a particular graphics card?

No card is needed to edit, play or save: the engine has a processor fallback and decoding falls back to software. Exporting H.264 or HEVC needs a card with a Vulkan Video encode queue, which Motion checks for and reports. AV1 export is encoded in software.

The rest of the suite

The other five, on the same membership.