Concat: the open-source CapCut replacement.
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I started this project about ~3 weeks ago. Since CapCut is putting everything behind a paywall after gaining millions of installs and users, I decided to create a free and open-source version with most if not all the features.Concat runs all the AI-features locally, has MCP support, has a decentralized system for assets like Filters, Effects, and Templates so users can write custom assets and share with the community (or sell them even).Note: I’m self-taught dev and used Claude (Fable 5.1) heavily while building Concat.
HN · launched Sep 18, 2026 · 5 upvotes (top 87%) · 0 views
Niche: video editing software · 287 launches, 36 in the last 7 days ▼ -12% · Explore this niche →
Category and tags
- Media & entertainment
- Vertical SaaS
- Prosumer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 287 launches in video editing software →
Could you build this?
Partial While an Electron/web video editor UI can be vibe-coded, running performant local AI video models and complex non-linear video rendering pipelines requires specialized systems and multimedia engineering.
What it would actually take: A production version requires an Electron or Tauri frontend paired with a high-performance native media engine (C++/Rust via FFmpeg, WebGPU, or Metal) for frame-accurate non-linear editing. Integrating local AI features (like background removal or automatic captioning) demands optimized ONNX/TensorRT or CoreML pipelines to achieve acceptable performance across consumer hardware, requiring deep video pipeline and ML optimization experience.
Discussion
3 comments analyzed.
Competitors mentioned: OpenCut
Concerns raised: Barely any working features, Website does not load
Competitors
Other products that read as similar to this one : 32 launches clear the similarity bar, closest 8 shown.
Attention rank: #29 of 33 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 247 days after the earliest competitor.
- Concat · ph · 2026-09-10 · 2 upvotes · similarity 0.65
- Klad, a paint app your coding agent can drive (source-available) · hn · 2026-11-11 · 84 upvotes · similarity 0.37
- Capcat · hn · 2026-07-02 · 5 upvotes · similarity 0.36
- MCP server gives your agent a budget (save tokens, get smarter results) · hn · 2026-04-15 · 6 upvotes · similarity 0.35
- I built an open-source alternative to Claude Cowork · hn · 2026-07-02 · 39 upvotes · similarity 0.34
- Feather: open source Fey alternative · ph · 2026-09-17 · 2 upvotes · similarity 0.34
- AI Assets Directory · ph · 2026-09-16 · 3 upvotes · similarity 0.33
- CapRocket · github · 2026-10-20 · 50 upvotes · similarity 0.33
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