You don't need to download a desktop NLE to make a clean video edit. If you have a browser, you already have everything you need. This guide walks you through editing a video from start to finish using Flowcut, the free video editor built into Morph.
Flowcut runs entirely in your browser using FFmpeg compiled to WebAssembly. Your video files never leave your device. There's no upload, no account required, and no watermark on exports. Here's how to use it.
What you need
- A modern browser (Chrome, Edge, Firefox, or Safari)
- A video file on your device (MP4, MOV, WebM, AVI, or MKV)
- That's it. No downloads, no sign-ups, no payment information.
Step 1: Import your video
Open morph.cool/video-editor in your browser. You'll see a drop zone in the center of the screen. Drag and drop your video file onto it, or click to open a file picker. Flowcut accepts MP4, MOV, WebM, AVI, and MKV files.
Once your file loads, you'll see the video preview in the center and a timeline at the bottom. The waveform of your audio track renders automatically, giving you a visual reference for where sound peaks and valleys fall in your clip.
Flowcut processes video using FFmpeg WebAssembly, which means the initial load may take a few seconds on slower connections. After the first load, it's cached in your browser.
Step 2: Work the timeline
The timeline is where you make your edit. Here's what you can do:
- Trim: Drag the handles at the start and end of your clip to set in and out points. You can also press I to mark the in point and O to mark the out point at the current playhead position.
- Cut: Position the playhead where you want to split and press Cmd+K (Mac) or Ctrl+K (Windows). The clip splits into two segments, each independently editable.
- Delete: Select a clip segment and press Delete or Backspace to remove it. Undo with Cmd+Z if you make a mistake.
- Reorder: With multiple clips, use the arrow buttons in the toolbar to rearrange their order on the timeline.
Use Space to play and pause. Press J to rewind 5 seconds or L to skip forward 5 seconds. These keyboard shortcuts match the standard NLE conventions, so muscle memory transfers directly.
Step 3: Color grade your footage
Click the color grading toggle in the toolbar to open the grading panel. You get five adjustment sliders:
- Exposure — brighten or darken the overall image
- Contrast — increase or decrease tonal range
- Saturation — boost or mute color intensity
- Temperature — shift toward warm (orange) or cool (blue)
- Tint — shift toward green or magenta
Double-click any slider to reset it to its default value. The preview updates in real time so you can see exactly how your adjustments look before exporting.
LUT color grading
For more advanced color work, Flowcut supports .cube LUT files — the same format used in every desktop NLE and professional color workflow. Import your own LUT or choose from three built-in presets: Cinematic (warm shadows, cool highlights), Vintage (desaturated and warm), and High Contrast (punchy S-curve with a blue push).
Color scopes
Open the scopes panel from the toolbar to access four professional monitoring modes: waveform monitor, RGB parade, RGB histogram, and vectorscope. The vectorscope includes a skin tone line (I-line) at approximately 123 degrees — essential for ensuring natural-looking skin tones in your grade. Most browser-based editors don't offer any scopes at all.
Step 4: Adjust speed
Flowcut offers two approaches to speed control:
Constant speed: Choose from six presets — 0.25x, 0.5x, 1x, 1.5x, 2x, and 4x. Use the [ and ] keys to step through speeds, or press \ to reset to 1x. Audio adjusts automatically using FFmpeg's atempo filter chain.
Speed ramping: Toggle the "Ramp" button to open the keyframe curve editor. Click to add keyframes at specific points in your timeline, then drag them to set the speed at each point. Flowcut interpolates smoothly between keyframes, so you can create cinematic speed ramps — like a slow-motion moment that accelerates back to full speed — without cutting your clip.
Step 5: Export
When your edit is done, click the export button. Flowcut offers seven presets optimized for different platforms:
| Preset | Format | Best For |
|---|---|---|
| YouTube | MP4 (H.264) | Standard uploads at source resolution |
| MP4 (H.264) | Reels, Stories, feed posts | |
| TikTok | MP4 (H.264) | Vertical short-form video |
| MP4 (H.264) | Timeline video posts | |
| GIF | GIF (two-pass palette) | Animated previews, memes, reactions |
| WebM | WebM (VP9 + Opus) | Web embedding, smaller file size |
| Custom | Your choice | Full control over format and settings |
The export runs locally in your browser. Processing time depends on your device's hardware and the length of your video, but there's no upload wait and no rendering queue. When it finishes, the file downloads directly to your machine.
Flowcut's GIF export uses two-pass palette optimization. That means smaller file sizes and more accurate colors than the single-pass encoding most online tools use.
Tips for better edits
- Use keyboard shortcuts. Space, J, K, L, I, O, Cmd+K, and Cmd+Z will make your editing significantly faster. The full shortcut list is available in the editor.
- Grade before you export. Color grading is baked into the final file via FFmpeg filters, so what you see in the preview is what you get in the export.
- Check your audio levels. Open the audio scope panel to monitor frequency levels in real time. The vertical meters show you if your audio is clipping before you export.
- Start with a LUT preset. If you're new to color grading, try the Cinematic preset first — it adds warmth to shadows and a subtle cool tone to highlights, which works well for most footage.
What Flowcut doesn't do (yet)
Flowcut is a capable editor, but it's honest about its current scope. It supports up to 3 clips on the timeline. There's no text overlay tool yet, no transitions between clips, and no multi-track audio mixing. These features are on the roadmap. For now, it's built to handle the workflow most people actually need: trim, grade, adjust speed, and export.
For file conversion beyond video editing, Morph supports 400+ conversion pairs — including video to GIF, MP4 to MP3, and dozens of image, audio, and document formats. Everything runs in your browser with the same privacy guarantee.
Start editing
No download. No signup. No watermark. Open Flowcut, drop a video, and start cutting. It works on any device with a modern browser — desktop, laptop, or Chromebook.