Why You Need This
Cutting a video should be a simple task, yet most online tools force you to upload your entire file to a remote server. For a quick ten-second trim you might wait several minutes on upload alone, and then you have to download the result. That wastes bandwidth, time, and raises serious privacy concerns about where your footage ends up.
Many creators, teachers, and professionals need to remove an intro, chop a clip to length, or isolate a single scene. They do not need bloated desktop software or cloud-based platforms that throttle free users with watermarks and file-size limits.
FastCut Pro solves this by processing everything locally inside your browser using WebAssembly. Your video never leaves your machine. There is no upload, no server queue, and no watermark. You open the file, set your cut points, and export instantly.
Step-by-Step Guide
- Step 1: Open FastCut Pro at fastcut.cc in any modern browser such as Chrome, Edge, or Firefox.
- Step 2: Click the large drop zone or drag your video file onto the page. Supported formats include MP4, MKV, MOV, WebM, AVI, and more.
- Step 3: Once the waveform and timeline appear, drag the left handle to the desired start time. You can also type an exact timecode in the input field.
- Step 4: Drag the right handle to set the end time of your cut. The selected region is highlighted on the timeline.
- Step 5: Choose your export mode. Select Lossless (-c copy) for instant remuxing or Re-encode if you need a different codec or resolution.
- Step 6: Click Export. The trimmed file is generated in your browser and automatically downloaded to your computer.
Why Use FastCut Pro
- No Upload Required — Processing happens on your device with WebAssembly, so even multi-gigabyte files work without waiting for an upload.
- Lossless Quality — The lossless cut mode remuxes the stream without re-encoding, preserving every pixel of the original quality.
- 100% Free — There are no premium tiers, no watermarks, and no per-export charges. Every feature is available to everyone.
- Privacy First — Your files stay on your hard drive. No data is sent to any server at any point during the editing process.
Pro Tips
- Use keyboard shortcuts J and K to jump between keyframes for frame-accurate lossless cuts.
- If you need to cut several segments from one video, use the multi-segment mode to queue them all before exporting in batch.
- For the smallest output file when re-encoding, choose the WebM (VP9) format which offers excellent compression at high visual quality.