How to extract frames from a video in your browser

FrameDigest turns moments from a local video into timestamped JPEG evidence without uploading the selected clip for extraction. It preserves chronological Full Evidence separately from its compact adaptive handoff.

Digest frames

How it works

Choose a local video, let FrameDigest decode and sample it in your browser, review representative moments, and export the frame set that fits your task. The selected source stays local during extraction.

  1. 01Choose the source

    Select a supported local video up to the current 180-second / 32 MiB envelope.

  2. 02Process locally

    The browser decodes the file, captures 1 FPS Full Evidence, and scans visible changes at higher frequency.

  3. 03Review and export

    Keep representative states, add exact manual moments, then download the output that matches your task.

Extraction modes

FrameDigest keeps two complementary views of the same source. Full Evidence preserves predictable one-frame-per-second chronology, while the adaptive handoff scans visible changes to reduce repetitive automatic frames.

Full Evidence

A predictable one-frame-per-second chronological archive. A 3-minute source produces about 180 timestamped Full Evidence frames.

Adaptive visual handoff

A separate higher-frequency scan looks for visible UI, text, layout, scene, and other state changes so the compact handoff can reduce redundant automatic frames.

What to expect

FrameDigest is built for useful visual evidence, not a lossless reconstruction of every source frame. Timestamps preserve chronology, selected media stays local, and transcription remains outside the current production workflow.

  • Neither output is a lossless reconstruction of every source frame.
  • Timestamp-aware JPEG filenames and frames.csv preserve chronological order.
  • Selected video bytes and generated media are not uploaded to FrameDigest application servers for extraction or ZIP generation.
  • Transcription is deferred; visual extraction does not fabricate speech or transcript files.

Frame extraction FAQ

Answers to common questions about sampling, manual moments, browser-local processing, and what FrameDigest does with your selected source video.

Does FrameDigest extract every frame from the source video?

No. Full Evidence preserves one frame per second, while the compact handoff separately scans for representative visible changes.

Why use 1 FPS Full Evidence?

The fixed rate creates a predictable chronological archive while keeping local resource use bounded at the current production envelope.

Can I preserve a specific moment manually?

Yes. Manually selected moments are retained in the AI Handoff rather than silently dropped by automatic compaction.

Is the video uploaded before frames are extracted?

No. Frame extraction and package generation run locally in the browser.