ff

Stop Googling ffmpeg commands.

ff convert video.mp4 to gif

That's it. No flags. No manuals. Just plain English.

Install

npm install -g ezff

Requires ffmpeg to be installed on your system.

Interactive Mode

Don't remember the syntax? Just type ff:

$ ff

  ff — Plain English ffmpeg

? File path: video.mp4
? What do you want to do? › Convert format
? Convert to: › GIF

  ffmpeg -i video.mp4 -vf fps=15,scale=480:-1:flags=lanczos -loop 0 -y video_output.gif

? Run it? › Yes

  Done!

Step-by-step. No memorization needed.

Direct Commands

Already know what you want? Skip the prompts:

# Convert formats
ff convert video.mp4 to gif
ff convert video.mp4 to mp3

# Compress
ff compress video.mp4 to 10mb

# Trim
ff trim video.mp4 from 0:30 to 1:00

# Extract audio
ff extract audio from video.mp4

# Resize
ff resize video.mp4 to 1280x720
ff resize video.mp4 to 720p

# Speed
ff speed up video.mp4 by 2x
ff slow down video.mp4 by 2x

# Other operations
ff reverse video.mp4
ff mute video.mp4
ff rotate video.mp4 by 90
ff flip video.mp4 horizontal
ff thumbnail video.mp4 at 0:05
ff merge video1.mp4 and video2.mp4
ff video.mp4 grayscale

Dry Run

Preview the ffmpeg command without executing:

$ ff convert video.mp4 to gif --dry-run
ffmpeg -i video.mp4 -vf fps=15,scale=480:-1:flags=lanczos -loop 0 -y video_output.gif

All Commands

Command	Example
Convert	ff convert video.mp4 to gif
Compress	ff compress video.mp4 to 10mb
Trim	ff trim video.mp4 from 0:30 to 1:00
Extract audio	ff extract audio from video.mp4
Resize	ff resize video.mp4 to 1280x720
Scale	ff resize video.mp4 to 720p
Speed up	ff speed up video.mp4 by 2x
Slow down	ff slow down video.mp4 by 2x
Reverse	ff reverse video.mp4
Mute	ff mute video.mp4
Rotate	ff rotate video.mp4 by 90
Flip	ff flip video.mp4 horizontal
Thumbnail	ff thumbnail video.mp4 at 0:05
Crop	ff crop video.mp4 to 640x480
FPS	ff fps video.mp4 to 30
Loop	ff loop video.mp4 3 times
Merge	ff merge a.mp4 and b.mp4
Add audio	ff add audio.mp3 to video.mp4
Grayscale	ff video.mp4 grayscale
Stabilize	ff stabilize video.mp4
Denoise	ff denoise video.mp4

How It Works

"ff compress video.mp4 to 10mb"
          ↓
    ┌─────────────┐
    │   Parser    │  Extracts: action=compress, file=video.mp4, size=10mb
    └─────────────┘
          ↓
    ┌─────────────┐
    │   Builder   │  Maps to: ffmpeg -i video.mp4 -crf 28 -preset medium ...
    └─────────────┘
          ↓
    ┌─────────────┐
    │   ffmpeg    │  Executes the command
    └─────────────┘

No AI. No API calls. Just pattern matching. Fast and offline.

Output

Files are saved in the same directory with _output suffix:

video.mp4 → video_output.gif

Requirements

• Node.js >= 16
• ffmpeg installed and in PATH

# macOS
brew install ffmpeg

# Ubuntu/Debian
sudo apt install ffmpeg

# Windows
choco install ffmpeg

License

MIT

Contributing

PRs welcome. Keep it simple.

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GitHub · Made by @josharsh