Evidor
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Export

Exporting renders the timeline to a shareable file. Evidor has two export paths: a fast native-FFmpeg path for simple projects, and a frame-by-frame path for anything more complex. This page covers both, plus the queue and preset system.

Opening the export dialog

Click the blue Export button in the top right of the window, or press Ctrl+E. The export dialog opens.

At the top is a preset dropdown, followed by fields for the file name, format, resolution, frame rate, quality, range, and audio. Below the fields, a summary panel shows the estimated duration, size, codec, and (during export) the speed and time remaining.

Presets

Presets are shortcuts that fill in the format, resolution, frame rate, quality, and range all at once. Pick one and the fields update. Choose Custom to change any field manually.

  • YouTube · 1080p - MP4, 1080p, project frame rate, high quality.
  • YouTube · 4K - MP4, 2160p, project frame rate, maximum quality.
  • TikTok - MP4, 1080p, 30 fps, standard quality.
  • Instagram Reel - MP4, 1080p, 30 fps, standard quality.
  • Instagram Post - MP4, 1080p, 30 fps, standard quality, 1:1 aspect.
  • Twitter / X - MP4, 1080p, 30 fps, standard quality.
  • Draft - WebM VP8, 480p, draft quality. Useful for quick reviews.
  • Audio only - WAV, no video.

Format

Four video formats are available:

  • Auto (best available) - tries MP4 first, then WebM. The auto mode is what the fast path uses, and on most machines it produces H.264 MP4.
  • MP4 (H.264) - the most compatible format. Plays on every device, uploads to every platform.
  • WebM (VP9) - smaller files at the same quality, but slightly slower to encode and less universally supported.
  • WebM (VP8) - the fallback for older machines without VP9 encoding support.

If you choose WAV, the export skips video entirely and writes only the mixed audio track. This is useful for sending audio to a podcast platform or to a sound engineer.

Resolution

The resolution dropdown lists 480p, 720p, 1080p, 1440p, and 4K. The actual output dimensions are computed from the project's aspect ratio. For example, on a 1920 x 1080 project, choosing 720p produces a 1280 x 720 output.

On a vertical project (1080 x 1920), the same 720p option produces 405 x 720 output, keeping the vertical shape.

Frame rate

The frame rate dropdown lists Match project, 24, 30, and 60. Matching the project is almost always the correct choice. Overriding the project frame rate causes Evidor to resample frames, which produces a slight judder on high-motion footage.

Quality

Four quality levels, which map to different CRF values in H.264 and different bitrate multipliers in WebM:

  • Draft - fast encoding, larger files at visible quality loss. Good for reviews.
  • Standard - the default. Balanced quality and file size.
  • High - slower encoding, better quality.
  • Maximum - the slowest encode, highest quality. Use this for archival or further editing.

Range

Two options:

  • Whole timeline - export everything from 0 to the end of the last clip.
  • In / Out region - export only the range defined by the in and out points. This option is greyed out unless both points are set.

Include audio

A checkbox that decides whether the exported file contains the mixed audio track. Uncheck it for a silent export, which is useful when you plan to add audio in another tool.

The export queue

You can queue multiple exports with different settings and run them one after another. Click Add to queue with the settings you want, change them, and add another. The queue appears in the dialog under the export fields.

When you are ready, close the dialog and choose File → Run export queue, or click Run queue in the dialog. Each job is processed in order. A status message appears in the status bar. When the whole queue finishes, a toast tells you how many files succeeded and how many failed.

Queued jobs can be removed before running them, by clicking the small × next to each row.

The two export paths

Evidor has two ways to render a project, and it picks the appropriate one automatically.

Fast native path

When the project consists of exactly one video clip with no grading, no effects, no masks, no keyframes, no speed changes, no fades, no crop, no rotation, and the source file is available as a direct path on disk, Evidor uses the bundled FFmpeg directly. This is nearly instant, because FFmpeg simply copies the source's video stream and trims it to the clip's offset and duration.

To check whether the fast path applies, look at the export dialog's codec summary. If it says H.264 + AAC and the export finishes in a few seconds for a long clip, the fast path was used.

Frame-by-frame path

Anything more complex goes through the frame-by-frame path. Evidor renders each frame of the timeline in the preview canvas, encodes it as JPEG, and pipes it into FFmpeg, which assembles the video. The audio is mixed offline into a WAV file and provided to FFmpeg at the same time.

This path is slower, because every frame must be rendered on the CPU (or GPU, if GPU grading is enabled). The export dialog shows the current speed and an estimate of the remaining time.

A progress bar tracks completion. During export, the app is put into an exporting state, which prevents edits. Cancel at any time by clicking Cancel export. If you do, no file is written.

Frame rate and long exports

Because the frame-by-frame path reads each frame in real time, exporting a long clip can take many minutes. If you can arrange the project so that the fast path applies, do it. Otherwise, consider trimming the export range to just the section you need.

Audio only

Choosing WAV from the format dropdown, or picking the Audio only preset, skips video entirely. Evidor renders the audio mixdown, encodes it as a 48 kHz 16-bit stereo WAV, and saves it. There is no video track in the output file.

Subtitles

Subtitles are not burned into the video by default. To include them, either:

  • Add caption clips to the timeline. These are burned in.
  • Export a sidecar subtitle file from File → Export subtitles, and ship it alongside the video.

Both approaches are valid. Burning in captions means viewers see them no matter what player they use. Sidecar files give viewers the option to turn them off.

Export shortcuts

  • Ctrl+E - open the export dialog.
  • Ctrl+S - save the project (not the export).
  • File → Export audio (WAV) - shortcut for a WAV-only export.

If something fails

The export finishes instantly but the file is empty. This usually means every clip on the timeline was skipped, either because its track is hidden or because its media could not be decoded. Check the track visibility toggles and the media panel for offline items.

The export dialog shows "This browser cannot export this format". The selected format is not supported by the current Chromium build. Try Auto or MP4 instead.

The output has no audio. Check that Include audio is checked, and that at least one audio track is not muted or hidden.

Export is very slow. Switch to a lower resolution or quality, disable GPU grading if it is causing sync issues, or trim the export range.