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I wanted a proper non-linear video editor built for the web. It always annoyed me how there are practically zero functioning web video editors. And here we are :)

Kimu can: - Work with Video, Audio & Text. - Supports Transitions. - Non-Linear Video Editing with z-axis overlays. - Split/trim - Export - A cute AI agent (coming soon!)

I'm in uni and I started this project out of sheer annoyance that there are zero good web video editors. It is open-source here (https://github.com/robinroy03/videoeditor).

What do y'all think?

Comments (15)

Uehreka · 1h ago

So I appreciate the aim here, but for me to trust any video editor, I need to see an example timeline that’s like, 30 minutes long with clips from at least 10 1080p video files and at least one effect on each track.

And for the record I wouldn’t consider that a stress test (a stress test would be more like 3 hours, 100 tracks, 4K and like a dozen precomps that are being reversed or something). That’s just to make sure this thing won’t fall over during casual usage.

You may be inclined to respond that your editor is targeting beginner editors, to which I’d note that beginner editors are MUCH less disciplined than experts when it comes to trimming footage, splitting things up into comps, pre-rendering chunks, using proxies, etc. Beginner editors (I’d know, I used to be one) will dump a 1 hour 4K-HDR iPhone video of a presenter speaking, and a screen recording of presentation slides they accidentally took in 4K60 into your timeline. Being able to demonstrate that you’ve got that level of memory management handled is what separates video editors people can use from mere “good ideas”.

Edit: Another thought, you call your product “Cursor for video editing”, and that’s a valid goal. But bear in mind that a LARGE part of why Cursor is successful is because they didn’t try to build an IDE from scratch. They got to absorb all of the nice UX (not to mention the extensive plugin ecosystem) of VS Code, and then spend their time on AI features. If that’s how you want to spend your time, you definitely don’t want to be building an editor from scratch.

ascorbic · 34m ago

I dont get this attitude. If there is some specific test you need before you'll trust it, what's stopping you doing that? I can understand your response if it was a paid product, but this doesn't even require you to install anything. Instead of appreciating the work that they've put in, you come right in with a negative comment that's not even based on trying it or knowing anything about it.

Mr_Eri_Atlov · 49m ago

Well, my very simple 3-minutes playing around with this were enjoyable.

Please add the ability to center images if you upload different-sized images, so the smaller images don't all clump in the upper left corner.

I'll try this with larger video clips later

robinroy03 · 47m ago

sure :)

try with larger clips and let me know in discord / github discussions

microflash · 20m ago

How does it compare with OpenCut?

https://opencut.app

ojr · 1h ago

Another remotion video editor with vibe-coded features? There are so many of them... A video editor in the long term needs to be mobile-first. A web video editor in the big year of 2025 is not going to move the needle. Capcut has a free desktop app that you must compete with. I think a better idea is building a mobile video editor, it's much harder to vibe code. To be the "Cursor for Video Editing," it's a must.

robinroy03 · 1h ago

Capcut TOS change is very unfortunate. They now claim broad licenses over user content. (https://www.isabokelaw.com/blog/capcuts-new-terms-of-service...)

Also, what makes you think it is vibe coded? Is the app not functioning as you expected? Let me know and I'll fix them asap.

anthk · 3m ago

mobile-first it's how to degrade computing in first place.

sitkack · 38m ago

You should prepopulate the timeline with an in progress edit so people can jump in start playing with it.

xnx · 1h ago

How does it compare to https://omniclip.app/ ?

robinroy03 · 1h ago

kimu offers a better user experience and is more intuitive. Also, we match the features with omni.

Our roadmap included automated captions, color grading and the like. We'll be a capcut alternative on the web.

leptons · 2h ago

>A cute AI agent (coming soon!)

Why??? You don't need this just because "AI" is popular right now, it will distract you from the goal of developing "video editor built for the web". It's really not going to improve the video editing experience.

robinroy03 · 1h ago

our goal is to make a solid web video editor first and foremost. Then we'll try to make it super accessible.

I'm thinking of including AI features like captions, auto color grading etc. I get your point of forcing AI, we won't do that.

No AI for AI, but AI for making it more accessible and helping novice users to also make cinematic videos.

kfarr · 1h ago

Captions would be a very useful feature and one of the top feature that paid platforms use as a hook for payment. There are enough models that can run client-side to make this good enough for social media captions, for example.

robinroy03 · 1h ago

yeah. im working on a PR for it rn. If you like our work, join discord :)