Everything you need to know about how Klipworm works — local processing, privacy, exports, formats, and more.
No. Klipworm processes everything locally inside your browser using WebAssembly and WebGL. Your video files are read directly from your device into browser memory (and optionally stored in IndexedDB, your browser's local database). They are never transmitted to any external server — not for processing, not for analysis, and not for AI training. We physically cannot access your footage.
There is no catch. Because all rendering happens on your own CPU and GPU inside the browser, we have no cloud server costs per export. That means we have no business reason to add a watermark or charge for exports. The editor is completely free — no watermarks at any resolution, no export limits, no feature locks, no trial expiry.
No. You can open the editor and start working immediately without signing up for anything. An optional account is available if you want to access future account-linked features, but the full editor is accessible as a guest with zero friction.
Yes to both. Klipworm supports export up to 4K UHD (3840×2160) resolution. The exported MP4 file contains no Klipworm logo, badge, or any overlay. What you create is entirely yours. Export quality is limited only by your source footage resolution and your device's hardware capabilities.
Klipworm ships a compact speech-to-text neural network that runs directly in a browser worker thread. When you click Generate Captions, the model loads locally and processes your audio track in-browser — identifying words and calculating their timing down to the millisecond. No audio data is sent anywhere. The feature works completely offline and generates unlimited captions with no credits or API keys required.
Klipworm supports all browser-native media formats: MP4, WebM, MOV, and M4V video containers; H.264, VP8, VP9, and AV1 codecs; MP3, WAV, and M4A audio; PNG, JPG, JPEG, and animated GIF images. Codec support for H.265 depends on your device's hardware decoder. Import is near-instant since files load directly from your drive without any upload.
Your work is safe. Klipworm autosaves every edit within milliseconds to your browser's localStorage (project metadata) and IndexedDB (your imported media files). When you return to the editor, your full project reloads exactly where you left it — including all your clips, cuts, caption tracks, and timeline settings. Closing the tab, restarting your computer, or losing internet connection will not cause you to lose work.
Yes. If you clear your browser's site data for klipworm.online, all locally stored project data and media blobs will be deleted. We recommend exporting finished videos to your hard drive as your primary backup. Project data lives entirely on your device — we have no server-side copy to restore from.
Yes. The editor is fully responsive and works on modern mobile browsers including Chrome for Android and Safari for iOS. Touch input is supported for the timeline, preview player, and panel controls. For complex multi-track editing and precise keyframe work, a larger screen is more comfortable, but the full editor is functional on phones and tablets.
Yes. You can create and export videos for any commercial purpose — ads, client deliverables, social media campaigns, YouTube monetization. The exported file is yours with no licensing restrictions from us. Just ensure you have appropriate licenses for any third-party music, footage, or images you include in your project.
The Klipworm timeline supports up to 30 simultaneous tracks, mixing video layers, audio channels, text overlays, and sticker animations independently. Each track has individual volume, visibility, and lock controls. Performance with many tracks depends on your device's GPU and available RAM.
Klipworm works in Chrome, Edge, Firefox, and Safari on both desktop and mobile. Chrome and Edge provide the best performance due to their V8 engine and hardware video decoder support. Firefox and Safari are fully supported. Internet Explorer is not supported. We recommend keeping your browser updated for the best experience.
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