Concat: the open-source CapCut replacement.
Details
- External ID
- 49749773
- Source
- HN
- Company
- —
- Product
- Concat: the open-source CapCut replacement.
- Website domain
- github.com
- Launched
- Sept. 18, 2026
- Cohort
- —
- Upvotes
- 5
- Upvotes percentile
- 0.12998405103668262
- Tags
- —
- Fetched at
- Sept. 22, 2026, 5:02 p.m.
- Updated at
- Sept. 22, 2026, 5:02 p.m.
Description
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.
Enrichment
- Theme
- browser automation and scraping for AI
- Vertical
- Media & entertainment
- Function
- Content generation
- Audience
- Prosumer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- open-source video editor for creators
- Manually corrected
- False
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 — 13 launches clear the similarity bar, closest 8 shown.
Attention rank: #10 of 14 (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
- Capcat · hn · 2026-07-02 · 5 upvotes · similarity 0.35
- MCP server gives your agent a budget (save tokens, get smarter results) · hn · 2026-04-15 · 6 upvotes · similarity 0.34
- Feather: open source Fey alternative · ph · 2026-09-17 · 2 upvotes · similarity 0.33
- AI Assets Directory · ph · 2026-09-16 · 3 upvotes · similarity 0.32
- I built an open-source alternative to Claude Cowork · hn · 2026-07-02 · 39 upvotes · similarity 0.32
- mTarsier · ph · 2026-03-17 · 188 upvotes · similarity 0.31
- We open sourced Vapi · hn · 2026-03-12 · 8 upvotes · similarity 0.31
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a content generation tool for Government yet.