FFreeTool.wang

Video Thumbnail and Frame Extractor

Extract one JPG thumbnail from a decodable video at a selected time.

Video thumbnail extractor

Runs in one local browser worker. Files are never uploaded.

ffmpeg.wasm · local

Runs in one local browser worker. Files are never uploaded.

Extract Video Frame怎么用

The extracted image is a decodable frame near the selected timestamp. Timestamps, keyframes, and color conversion can differ slightly from a player display.

  1. Choose video and wait for duration metadata.
  2. Enter the extraction timestamp.
  3. Extract the fixed-quality JPG.
  4. Inspect orientation, color, and sharpness before download.

調整項目

  • Timestamp; current output is fixed-quality JPG with no PNG or quality control

解決できること

  • Choose an exact cover time
  • Media is read and transcoded in this browser tab and is not uploaded to FreeTool to perform the task.

互換性と制限

  • No extraction of every frame
  • Unsupported codecs or damaged timestamps fail
  • HDR/wide-gamut to ordinary image can change color

よくある質問

Why is it not the exact displayed frame?

A timestamp can fall between frames and the decoder selects a nearby decodable frame.

Can I download PNG?

The current page outputs JPG only and does not promise PNG.

Is video uploaded?

Media is read and transcoded in this browser tab and is not uploaded to FreeTool to perform the task.