Open OTIO files in your browser
The timeline OpenTimelineIO writes to carry an edit between studios and apps. See its tracks right here, with every clip, transition and marker and the media it names. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your project opens as its timeline: the tracks down the left, and their clips along it with the pictures and waves of the media dropped with it, under its markers.
- Every track and clip • Zoom from the whole edit to a frame
- Media • A tab of every file it uses, missing ones marked
- Titles and transitions • Their words and lengths on the clips
- Export • Save the clips and the media list as CSV
About OTIO
OpenTimelineIO, started at Pixar and now the Academy Software Foundation’s, is an open format for editorial timelines: a stack of video and audio tracks, each a run of clips, gaps, transitions and nested stacks, each clip with the range of its media it plays and a reference to that media, and markers, all as JSON with times as a value at a rate.
Filepeek lays it out as an editor would: video tracks from the top one down and audio under them, gaps left empty, each transition on the clip it leads into, and markers along the top. Drop the timeline with its media and each clip shows its pictures and waves.
An OTIOZ is a ZIP of a timeline and its media, which opens as a folder, its content.otio inside.
OpenTimelineIO timeline
.otio
Format
- MIME type
- application/json
- Made by
- Pixar and the Academy Software Foundation
Inside the file
- Holds
- Tracks, clips, gaps, transitions and markers
- Media
- References by URL
- Format
- JSON
- Made by
- DaVinci Resolve, Nuke Studio and OTIO’s tools
Opens in every browser
Filepeek opens OpenTimelineIO timelines in Chrome, Edge, Firefox and Safari. On their own, browsers only download them.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open OTIO
- WindowsDaVinci Resolve, free • Nuke Studio, paid
- MacDaVinci Resolve, free • Nuke Studio, paid
- iPhone and iPadNo app opens it
- AndroidNo app opens it
Questions
How do I open an OTIO file?
Drop it on this page or press Peek an OTIO. It opens as its timeline in your browser, on Windows, a Mac, an iPhone or Android, with nothing to install.
Why do my clips show their names instead of pictures?
A timeline only references its media. Drop it with the files and each clip finds its file by its name.
Which apps read OTIO?
DaVinci Resolve imports and exports it, as do Nuke Studio and Hiero, and OpenTimelineIO’s own tools convert it to and from EDL, FCPXML and others.
Where are the transitions?
On the clip they lead into, as a wedge over its start. A transition takes no time of its own in OTIO: it overlaps the clips on each side.
What’s an OTIOZ or OTIOD?
An OTIOZ is a ZIP and an OTIOD a folder, each holding a timeline and its media. Open the .otio inside.