100% Private
Your videos are processed directly on your device. Nothing is uploaded, so your content remains completely confidential.
Video Clipper & Trimmer
Easily cut and trim video files online for free. Select a start and end time, preview your clip, and download without watermarks. All processing is done in your browser for 100% privacy.
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A video clipper trims and cuts video files to extract specific segments. You can set start and end points, preview the selection, and export the clip. This tool uses the browser's MediaSource API and WebCodecs for video processing -- all operations happen locally in your browser, making it suitable for unreleased content, personal videos, or confidential footage.
Cut and trim videos without uploading your files
Visual timeline, precise start/end selection, WebM output. No watermarks, no sign-up — all processed locally in your browser.
Precise trimming
100% private
Free no-watermarks
How to use
- 1
Upload Video
Drag your video file onto the page or click to select it from your computer.
- 2
Set Time Range
Adjust the start and end sliders to highlight the exact part of the video you want to keep.
- 3
Select Quality
Choose a video bitrate. Higher values mean better quality but larger file sizes.
- 4
Process & Preview
Click 'Clip Video'. Your browser will process the file and show you a preview of the final cut.
- 5
Download
Click the download button to save your new video clip as a .webm file.
Simple, Private, and Powerful
Precise Control
Use the intuitive sliders to select the exact start and end points for your clip, with a real-time preview of the duration.
No Watermarks
Download your final video clip for free, with no watermarks or branding added.
Live Preview
Preview your selected clip before processing and downloading to ensure it's exactly right.
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Understanding Video Clipping
How browser-based video editing works
Video files (MP4, WebM, MOV) are containers that hold encoded video and audio streams. Video compression uses inter-frame compression: most frames (P-frames and B-frames) store only the differences from previous frames, while keyframes (I-frames) store a complete image. This makes video editing complex -- cutting at a non-keyframe requires decoding all frames from the previous keyframe to the cut point, then re-encoding from that point. Browser-based video editors work around this limitation using the MediaSource API for playback control and the WebCodecs API for frame-level access.
The HTML5
Our tool uses the fast-cut method for initial preview and offers re-encoding for final export. The WebCodecs API (available in Chrome 94+) provides access to the video decoder and encoder, allowing frame-accurate cuts without server processing. For browsers that don't support WebCodecs, the tool falls back to the MediaRecorder API, which captures the video element's output in real time -- slower but universally supported. The output format is WebM (VP8/VP9 codec) which is supported by all modern browsers.
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Video formats and compatibility
MP4 (H.264/AAC) is the most widely supported video format -- every browser, mobile device, and video editing tool can play it. WebM (VP8/VP9/Vorbis/Opus) is Google's open format, supported by Chrome, Firefox, and Edge but not Safari (for VP8/VP9). For maximum compatibility, MP4 is the best choice. For web optimization, WebM produces smaller files at equivalent quality. Our tool can output both formats when the WebCodecs API is available.
When clipping videos, be aware that the output quality depends on the re-encoding settings. For web sharing, 1080p at 5-8 Mbps (H.264) or 3-5 Mbps (VP9) provides good quality. For professional use, preserve the original bitrate and codec settings. Audio is typically AAC at 128-192 kbps for MP4, or Opus at 96-128 kbps for WebM. Our tool preserves the original audio track during fast cuts and re-encodes audio during precise cuts.
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How does this compare to other video clippers?
A side-by-side comparison of popular video editing tools.
| Feature | NovaTools | Kapwing | Clipchamp |
|---|---|---|---|
| Privacy (no upload) | 100% browser | Uploads to server | Uploads to server |
| No registration | Required | Required | |
| No watermark | Free has watermark | Free has watermark | |
| Precise frame cuts | WebCodecs | ||
| WebM + MP4 output | MP4 only | ||
| Free unlimited | 7 min (free) | Limited (free) |
Server-based video editors like Kapwing and Clipchamp require uploading your videos, add watermarks on free plans, and have duration limits. Our tool clips videos entirely in your browser using the WebCodecs API -- no uploads, no watermarks, no limits.
FAQ
Are my video files uploaded to a server?
No. Our tool works entirely in your web browser using the HTML5 Video API and MediaRecorder API. Your video files are loaded directly into the browser's memory, decoded for timeline visualization, trimmed according to your start/end selection, and re-encoded as a new video file — all on your device. The files are never uploaded, stored, or transferred to our servers. When you close the browser tab, all video data is cleared from memory. This makes the tool safe to use for confidential video recordings, proprietary content, unreleased product demos, or sensitive interview footage where data privacy is a concern. The tool is particularly valuable for videos under NDA or containing personally identifiable information.
Is this video trimming tool free?
Yes, this tool is completely free to use without any limitations or watermarks on your final video. There are no premium tiers, no daily usage caps, no sign-up requirements, and no attribution required. You can trim as many videos as you need, as often as you need, for personal or commercial use. The tool is sustained by non-intrusive advertising rather than paywalls. The output files are yours to use however you see fit — there are no license restrictions on the trimmed videos. The tool does not add watermarks, intro screens, or branding to the output.
Why did my MP4 video download as a WebM file?
For maximum speed and browser compatibility, we use the WebM format for output. WebM uses the VP9 video codec and Opus audio codec, which are royalty-free and supported by all modern browsers (Chrome, Firefox, Edge, Opera). The MediaRecorder API, which the tool uses for client-side video encoding, primarily supports WebM output — MP4/H.264 encoding is not yet universally supported in browsers' MediaRecorder implementations. WebM files can be played by most video players (VLC, MPC) and uploaded to most platforms (YouTube, Vimeo, Discord, Slack). If you specifically need MP4 output, you can use a dedicated video converter after downloading the WebM file. We are monitoring browser support for MP4 encoding in MediaRecorder and will add it when it becomes widely available.
What video formats can I upload?
The tool supports any video format that your browser can decode — typically MP4 (H.264), WebM (VP8/VP9), and Ogg (Theora). The exact set of supported formats depends on your browser and operating system. Chrome and Edge generally support the widest range of formats, including MP4 with H.264, H.265/HEVC (on supported hardware), and WebM with VP9. Firefox supports MP4 (H.264) and WebM. Safari supports MP4 (H.264, H.265) and WebM. If your file is in an unsupported format (e.g., MKV, AVI, FLV, WMV), you will need to convert it to MP4 or WebM first using a dedicated video converter like HandBrake or FFmpeg.
How precise is the trimming?
The tool provides frame-level precision for start and end points. At 30 FPS (frames per second), you can trim to within 1/30th of a second (33 milliseconds). At 60 FPS, precision increases to 1/60th of a second (16 milliseconds). The timeline visualization shows the video's audio waveform (if present) and a thumbnail scrubber, making it easy to identify scene changes, silence, or action. You can drag the start and end handles on the timeline, or type specific time values in the input fields. A real-time duration display shows the length of your selected clip as you adjust the handles.
Will trimming affect video quality?
The tool re-encodes the video during the trim operation, which means some quality loss may occur depending on the bitrate you select. Higher bitrates produce better quality but larger file sizes. The default bitrate is set to match the original video's bitrate, which typically produces visually indistinguishable results. If you need maximum quality, select the highest bitrate option. If you need a smaller file size (e.g., for email or web upload), select a lower bitrate. The re-encoding uses the VP9 codec, which is highly efficient and produces good quality at lower bitrates compared to older codecs like H.264.
Can I preview the clip before downloading?
Yes. After selecting your start and end points, you can preview the selected portion of the video using the built-in video player. The preview plays from the start point to the end point, with the timeline playhead moving to show your position in the clip. You can adjust the start and end handles while the preview is playing, and the preview will update to reflect the new selection. This makes it easy to fine-tune your clip until it looks exactly right before processing and downloading.
Is there a file size limit?
There is no artificial file size limit imposed by the tool. Since all processing happens in your browser's memory, the practical limit depends on your device's available RAM and the browser's maximum video decoding capabilities. Most modern computers can handle video files up to 500 MB - 1 GB without issues (roughly 10-30 minutes of 1080p video). Very large files (e.g., 4K video longer than 15 minutes) may cause the browser to become temporarily unresponsive during the encoding phase. If you encounter issues, try trimming shorter clips or reducing the output quality setting.
Your Privacy is Our Priority
This tool runs entirely in your browser using the HTML5 Video API and MediaRecorder API.
- We do not upload, store, or analyze your files.
- Everything you process stays on your device.
- The tool reads your video file from local memory, decodes it for timeline visualization, performs the trim operation by re-encoding only the selected portion using the browser's MediaRecorder, and generates the output file — all without any network requests.
- There are no server-side logs capturing your video filenames or clip durations, no analytics tracking your usage patterns, and no persistent storage of any kind.
- When you close the browser tab, all video data, timeline visualizations, and preview buffers are cleared from memory immediately.
- This makes the tool safe to use for confidential video recordings, proprietary content, unreleased product demos, sensitive interview footage, videos under NDA, and any scenario where video data should not be exposed to third-party servers.
- The tool also works offline after the initial page load.
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