vdoflow

FFmpeg Online: Custom Commands in Your Browser

Run your own FFmpeg argument templates online: pick a file, write flags and filters with INPUT and OUTPUT placeholders, and export with private browser-side FFmpeg.wasm processing.

Choose a video to start

Drop a file here, upload from your device, or open your library.

What edit using FFmpeg solves

Custom FFmpeg online is for people who already know what they want from flags and filters, and only need a file picker plus a predictable place to write the argument list.

Built for experienced FFmpeg users who want a command-line-style template, local processing, and a clear mapping from INPUT to OUTPUT without uploading media.

When edit using FFmpeg is the right tool

  • Reuse a command you already run locally but want to try without installing tools on a new machine
  • Prototype a filter graph or mapping plan before moving the same idea into a script
  • Stay local-first when presets do not expose the exact combination you need

Common mistake to avoid

Do not assume every desktop encoder or hardware path exists in the browser build. Start with a short test clip and a simpler graph, then add complexity.

How this differs from nearby tools

Preset tools trade flexibility for guidance. Use them when you want safe defaults. Use custom FFmpeg when you are comfortable reading FFmpeg errors and adjusting flags.

After a successful export, convert or trim only if the destination still needs a different container or a shorter timeline.

How to use

  1. 1. Open the source file: Load the clip you want to edit using FFmpeg.
  2. 2. Apply the main fix first: Change only the setting that solves the primary problem before layering more edits on top.
  3. 3. Export and preview: Check the result in the real destination before deciding the job is done.

FAQ

When is edit using FFmpeg the right move?

Use edit using FFmpeg when that is the direct fix for the real problem, rather than a side issue like format or file size.

Should I change other settings first?

Usually no. Start with the edit that matches the main problem, then export one test copy before stacking more changes on top.

Can I keep working on the result afterward?

Yes. vdoflow works best as a sequence of focused steps, so you can trim, crop, resize, convert, or compress in the order the job actually needs.

Related tools and guides

Convert Video

Use guided presets when raw arguments are more than you need.

Trim Video

Shorten the source before long encodes or heavy filter graphs.

Try vdoflow next

Start with one focused workflow and keep the suggested settings ready when the page opens.

Custom FFmpeg

Open the template editor with the default stream-copy command.

Open Tool

Guided conversion

Export MP4, WebM, MOV, GIF, or MP3 without writing flags by hand.

Open Tool

Trim first

Keep only the section you need before complex processing.

Open Tool

Embed this tool

Use the same vdoflow tool inside your own docs, product pages, or support articles.

<iframe
  title="vdoflow embedded video tool"
  src="https://vdoflow.com/embed/ffmpeg-online"
  width="100%"
  height="760"
  style="border:0;"
  loading="lazy"
  allow="clipboard-write"
></iframe>

Choose a Tool

Select which editor should open this library file.