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Kaestral
An AI-operated video editor. 52 tools. 100% local.
You describe the edit. It makes it. Kaestral watches your footage, hears every word, and cuts, an AI-native video editor for Windows. A real multi-track timeline driven by 52 MCP tools and 25 editing skills, from Claude Code, Cursor, Claude Desktop, or the built-in chat. Everything runs local, your footage never leaves your PC. Free, open-source, no watermarks.
Hi Product Hunt 👋
I spent the last six weeks building Kaestral, and the idea behind it is simple: the editor should be the hands, and the AI should be the brain.
Most AI video tools are a cloud service with a prompt box. You upload your footage, wait, and get back a file you can't adjust. Kaestral is the inverse, it's a real multi-track editor running on your Windows PC, and the AI operates it through 52 validated MCP tools. Connect Claude Code, Cursor, or Claude Desktop, describe the edit, and watch it happen on an actual timeline you can then tweak by hand.
Kaestral has eyes 👀 and ears 👂, it sees your footage through real frame vision and hears every word through on-device transcription, so it edits what's actually there instead of guessing.
Everything is local. Transcription, rendering, export, your footage never leaves your machine. Free and GPLv3.
One story from the build: two days before launch, verification caught that every packaged installer was shipping with an engine that died on startup. 310 automated tests were green the whole time. Tests didn't catch it, opening the actual app did. That lesson shaped the whole release process.
It's early and there's plenty I want to improve, so I'd genuinely love your feedback, especially on what feels missing. Happy to answer anything in the comments today.
About Kaestral on Product Hunt
“An AI-operated video editor. 52 tools. 100% local.”
Kaestral was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #60 on the daily leaderboard. You describe the edit. It makes it. Kaestral watches your footage, hears every word, and cuts, an AI-native video editor for Windows. A real multi-track timeline driven by 52 MCP tools and 25 editing skills, from Claude Code, Cursor, Claude Desktop, or the built-in chat. Everything runs local, your footage never leaves your PC. Free, open-source, no watermarks.
On the analytics side, Kaestral competes within Open Source, Artificial Intelligence, GitHub and Video — topics that collectively have 589.5k followers on Product Hunt. The dashboard above tracks how Kaestral performed against the three products that launched closest to it on the same day.
Who hunted Kaestral?
Kaestral was hunted by PRABINDER SINGH. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Kaestral including community comment highlights and product details, visit the product overview.
PRABINDER SINGH