Convert Files Easily with FFmpeg Online Converter

Need to convert a media file without installing software? This online FFmpeg converter posts your file and command to a hosted processing service that runs the same FFmpeg or FFprobe binary as the command line, then returns the output as a download.

How the server-side FFmpeg pipeline handles your file

FFmpeg Online uploads your file over HTTPS to a hosted processing service, dispatches your ffmpeg or ffprobe command to a server-side worker, and returns the output as a one-click download. The browser holds the upload form and the command builder; the encoding, transmuxing, or metadata probe runs on the service host, so your device is not CPU-bound. For workflows that must keep the source on-device, run a local FFmpeg install instead.

Command patterns that cover most jobs

Format conversion (MP4 → WebM). -i input.mp4 -c:v libvpx-vp9 -b:v 1M -c:a libopus output.webm - re-encodes to VP9 video and Opus audio for modern browsers.

Trim a segment (keep seconds 10-30). -i input.mp4 -ss 10 -t 20 -c copy output.mp4 - -c copy avoids a re-encode, so the trim is instant.

Extract audio only (MP4 → MP3). -i input.mp4 -vn -c:a libmp3lame -b:a 192k output.mp3.

Resize to 720p. -i input.mp4 -vf scale=1280:720 -c:v libx264 -crf 23 output.mp4 - bicubic scale + quality-targeted H.264 re-encode.

Probe a file before editing. Switch the binary to ffprobe and pass -v quiet -print_format json -show_format -show_streams input.mp4 to get codec, bitrate, duration, and stream metadata as JSON.

Remember: the forward-slash is reserved by this tool's command parser, so express paths without leading slashes and avoid the / separator in filter chains.

Privacy and retention

Your file is uploaded over HTTPS to service.us-east-1a.freetool.online and stored on the processing host only for as long as the conversion needs it; the source and the generated output are removed shortly after the command finishes (the retention window is the value the service emits as web.minsToDelFile at page load). The session is anonymous - no signup or sign-in is required. For workflows that must keep the source on-device for compliance, run FFmpeg locally; the hosted service is the fastest no-install route for one-off conversions, trims, and metadata probes.

Key features of this FFmpeg online converter include:

• Wide Format Support: Convert between numerous video, audio, and image formats, making it highly versatile.
• Real-time Console Feedback: View FFmpeg command logs as your files are processed, providing transparency and control.
• Cross-Platform Compatibility: Use this tool on any device with a web browser, be it desktop or mobile.
• Short retention: Source and output removed from the processing host shortly after the command finishes.
• Customizable Parameters: Fine-tune conversion options like bitrate, resolution, and frame rate as per your needs.

To use this tool, simply upload your file, adjust the settings to your preference, and start the conversion. The tool will handle everything in the background, giving you a downloadable output file in just moments.

Just need a quick format change, not a custom command? All Video Converter covers the common cases (MP4, WebM, MOV, MP3) with a GUI and no command line. For a slideshow video from still images, Video Maker assembles the sequence into MP4 in one click. For an animated GIF, GIF Maker turns short clips into shareable GIFs.

Hosted ffmpeg vs local ffmpeg - which one now? The guide ffmpeg online vs local ffmpeg when each wins covers the decision rule: the hosted service is ideal for one-off conversions; local ffmpeg wins for long-running batches, hardware-accelerated encoding, files that must stay on-device, and files larger than the upload window allows.