Open source alternatives to Opus Clip

2 projects on starwire do the same job. Ranked by how much of what Opus Clip does each one covers, read from its README and website. Ties go to the most active.

What Opus Clip does

Auto-pick highlights from long videoscore
Vertical reframing for shortscore
Auto captions
Virality scores for clips
Publish to TikTok, Reels and Shorts
B-roll and edits

Each dot in the table is one job, in this order. Square dots are core jobs and count double. Full means yes, half means partly. "See the evidence" under a project shows the line behind each one. Coverage is what a project documents, not how well it works or how hard it is to move to. How we score this

Project	Covers	Stars	Commits, 12 weeks	Last release	Closed vs opened	Setup	License
openshortsMakes vertical short clips from long videos, with subtitles and dubbing	Replaces it100%	8.3k+726	338	None	54%	Hosted, free plan	MIT
Covers everything on the checklist.See the evidence Auto-pick highlights from long videoscoreYesThe AI picks the 3 to 15 moments worth posting Vertical reframing for shortscoreYesSmart 9:16 Cropping: AI reframing per scene Auto captionsYesAuto Subtitles: faster-whisper with word-level timestamps Virality scores for clipsYesscores the transcript to pick the 3 to 15 strongest moments Publish to TikTok, Reels and ShortsYessent to TikTok and Instagram Reels from the dashboard B-roll and editsYesAI Video Effects: Gemini-generated FFmpeg filters
ViralMintPipeline that clips long videos and builds captioned shorts locally	Replaces it94%	199+7	132	34 days ago	Too few	Needs a server	AGPL-3.0
Covers all 2 core jobs. Partly: Publish to TikTok, Reels and Shorts.See the evidence Auto-pick highlights from long videoscoreYesClipper extracts the highest-potential 30–60 second moments Vertical reframing for shortscoreYesSentence-boundary snap, 9:16 reframe, word-by-word captions Auto captionsYesSentence-boundary snap, 9:16 reframe, word-by-word captions Virality scores for clipsYesscored on hook, flow, value, trend-fit and shareability Publish to TikTok, Reels and ShortsPartlyAI-drafted title, description and tags, ready to post B-roll and editsYesAI-generated b-roll images and your own imported clips

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