Ranges in milliseconds and frames
Annotate a moment or segment with its timecodes and frame numbers.
Review notes for HyperFrames Studio
Review every frame, right on the timeline.
Mark a moment or range, write what needs to change, and give your AI agent frame-accurate context. Frame Notes keeps each note beside the local project.
No account. No cloud. On your device.
01Who it's for
For editors reviewing long videos with an AI agent.
When a change depends on an exact frame, “fix this” is not enough. Leave a marker at composition time, add a note, and let your local tools read the context.
HyperFrames Studio in the browser · local projects02Built for precise review
Context lives where the change happens.
Mark 0.2 s inside a 30-minute video
Zoom the timeline and use the detail strip to review sub-second ranges.
Nudge by ±1 frame
Move a range's start or end with single-frame precision.
Loop a range
Loop the note while you check a transition or a cut.
Copy every note
Copy timecodes and text with one click, ready to paste into an agent.
Files in the project root
review-notes.json and review-notes.md stay in the local project for your tools to read.
Optional dictation
Use Chrome on-device recognition or, after consent, local Whisper.
Dark or paper theme
The panel follows Studio's theme and includes a light view.
03How to install
Download the extension and load it in your browser.
Chrome, Edge, or Brave
- Download the latest ZIP from GitHub Releases and unzip it.
- Open chrome://extensions and enable Developer mode.
- Choose “Load unpacked” and select the unzipped folder.
Firefox
- Download the XPI from GitHub Releases.
- Open about:debugging#/runtime/this-firefox and choose “Load Temporary Add-on”.
- Select the XPI. An unsigned build is temporary until an AMO listing is available.
04How to use
From playhead to a clear review note.
01
Open your local project
Run npx hyperframes preview and open the project in HyperFrames Studio. Frame Notes works in the local browser preview.
02
Mark the start and end
Press Alt+N to start a note. Use Alt+I and Alt+O on the frames that bound the range, then write the context.
03
Fine-tune the moment
Zoom the timeline to see short ranges in the detail strip; adjust either edge by a single frame.
When you're done, click Copy all or let your local agent read review-notes.md from the project root.
05One click to share context
Notes an agent can read.
Copy all writes the text to your clipboard only when you click it. This is the format produced by the extension's formatter:
Review notes — long-demo (3 notes, 30 fps)
1) 12:00.000 → 12:00.200 (f21600–f21606, 0.200 s): Check the title timing.
2) 12:14.433 → 12:22.833 (f22033–f22285, 8.400 s): Review the cut after the camera move.
3) 12:31.000 (f22530): Use this frame as the reference.06Shortcuts
Take notes without leaving the review.
Alt+NNew note at the playhead
Alt+ISet range start
Alt+OSet range end
EnterSave the note
Shift+EnterInsert a newline
EscCancel editing
Alt+Shift+CCopy all notes
Alt+MMinimize or expand the panel
Alt+VStart dictation
Registered browser commands default to Alt+Shift+N/I/O/C and can be remapped in the extension's shortcut settings.
07Fits right into Studio
Paper-light or edit-suite dark.
The panel follows HyperFrames Studio's dark or light theme.
08Your data
Your notes stay on your machine.
Frame Notes has no accounts, analytics, or telemetry. Notes are saved in the extension's local storage and mirrored to Studio project files.
Read the privacy policy →09Frequently asked
Compatibility and limits.
Does it work with the desktop app?
No. Frame Notes works with Studio in the browser from a local HyperFrames preview, not the desktop app.
What if Studio's file API changes?
Studio's internal file API may change between versions. Copying notes remains available.
Does dictation work in every browser?
Availability depends on the browser and its recognition services. Dictation is optional and starts only when you request it.
Is Firefox tested as much as Chrome?
No. Firefox runtime behavior is less tested than Chrome.