Limelight
What Is Video Export?
Video export is the process of rendering all edits and effects in an editing timeline into a final, shareable video file — encoding the result to a specified format, codec, and quality setting.
When you edit a screen recording — trimming, speeding up, annotating — you are working inside an editor that keeps the original source file intact and stores your edits as instructions. Video export is the step that executes all those instructions: it reads the source footage, applies every edit decision (in and out points, speed changes, effects), and encodes the result into a new file. The export process is often called "rendering" because the editor has to compute (render) each frame of the output. Export time depends on the length of the clip, the complexity of effects, the target codec, and the hardware doing the encoding.
The most important export decisions are format, codec, and resolution. For screen recordings destined for web sharing, mp4 with H.264 is the near-universal standard — supported everywhere, good quality, reasonable file size. For vertical social content (Reels, TikTok, Shorts), the same codec in a 9:16 aspect ratio (1080×1920) is the right target. For archival or further editing, a higher-quality intermediate like Apple ProRes gives maximum quality for round-trips through additional editing passes. Resolution should match or be downscaled from the recording resolution — upscaling a small recording to a larger frame size does not add detail.
Limelight combines editing and export in one native macOS application. After recording, the built-in editor shows the timeline where you can trim, speed-ramp, and review the clip. Export is a single action: choose horizontal mp4 or 9:16 vertical, and Limelight encodes the result using hardware-accelerated H.264 on your Mac. Because it runs natively and offline, the exported file is ready immediately on your local disk with no upload queue or cloud processing step. The result is a self-contained mp4 file you can share immediately by any means.
Why Limelight
- ▸Video export renders the final file from the editing timeline — encoding all edits, speed changes, and effects into one output.
- ▸Key export decisions: format (mp4 is universal), codec (H.264 for broad compatibility), and resolution (match or downscale from source).
- ▸For screen recordings: mp4 for standard sharing; 9:16 mp4 for Reels, TikTok, and Shorts.
- ▸Limelight exports to mp4 and 9:16 vertical directly from its built-in editor using hardware-accelerated encoding.
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FAQ
- How long does video export take for a screen recording?
- For a typical short screen recording (under 5 minutes) on a modern Mac, hardware-accelerated H.264 export takes seconds to a minute or two. Apple Silicon Macs with a dedicated media engine encode especially fast. Limelight uses native macOS APIs for hardware-accelerated export.
- What is the best export format for sharing a screen recording?
- MP4 with H.264 is the universal standard — plays on every device and platform without conversion. For vertical social content, export as 9:16 mp4. For archival or further editing, ProRes is the quality-first choice at the cost of much larger file sizes.
- Can I export the same recording in multiple formats?
- Yes. You can export the same edited timeline multiple times with different settings — once as 16:9 mp4 for a website, once as 9:16 for Reels. Each export run produces a separate output file; the original recording and editing decisions are not affected.