Online FFmpeg Command Builder
Build custom FFmpeg commands for advanced video conversion workflows.
Conversion Settings
Video Converter
(Choose One)Convert video to popular formats (MP4, MKV, WebM, etc.).
Resolution
(Choose One)Resize video (480p, 720p, 1080p, 2K, 4K).
Browser Upscaler
(Choose One)Free non-AI FFmpeg upscaling in your browser with interpolation and sharpening filters.
Frame Rate
(Choose One)Change the video frame rate (24, 30, 60, custom).
Video Speed
(Choose One)Change playback speed (2x, 4x, 8x faster/slower, or custom).
Crop & Rotate
(Choose One)Crop or rotate the video frames.
Video Bitrate
(Choose One)Control video quality/size via bitrate or CRF.
Trim / Split / Merge
(Choose One)Cut a section, split into segments, or merge multiple videos.
Metadata
(Choose One)Add or remove container-level metadata tags.
Social Media Presets
(Choose One)Format for YouTube, TikTok, Instagram, Facebook, Discord, etc.
Aspect Ratio
(Choose One)Change aspect ratio using crop, letterbox, or blurred fill methods.
Ultimate Resolution
(Choose One)Advanced high-quality resolution conversions with maximum fidelity.
Final Command (Advanced)
-i input0.mp4 output.mp3
Review or tweak for custom usage.
Create advanced conversion commands safely
Use command builder mode when presets are not enough. This gives full control for complex workflows like custom filters, codec tuning, and stream mapping.
- Start from a known preset, then add one advanced flag at a time.
- Validate commands on short clips before processing long files.
- Keep a saved list of stable commands for recurring tasks.
Good To Know
- These tools improve and reformat the video data you already have, but they cannot invent missing real detail that was never captured in the original file.
- Frame-rate changes (for example 30fps to 60fps) can make motion smoother, but on low-motion scenes the output may still look very similar.
- Final results depend on source quality, scene motion, and playback screen size, so short test clips are the best way to pick perfect settings.