Timecode math, from anywhere on your Mac.

Silverfang TC is a timecode calculator a hotkey away, and a shifter for cue sheets, markers and EDLs. Made for editors, assistants and post supervisors.

coming soon$29 at launch · $49 after

For macOS 13 and later. Windows is coming.

Try one:

That's the real thing, running in your browser. In the app it's a hotkey away.

Everything you do with timecode in post

Quick Calc, from any app

Press ⌥⌘T over Resolve, Avid or Premiere. Type 01:00:00:00 + 4s, press Return, and the answer is on your clipboard. Copied a timecode first? It's already filled in.

Every rate, drop-frame right

23.976 to 119.88, drop-frame and non-drop, with the timecode, frames, real time and the non-drop equivalent side by side. Ambiguous numbers show both readings.

Shift whole lists

Paste cue sheets, spreadsheets or marker lists and move every timecode by an offset, with change points for edits that cut or add time.

Through an EDL or XML

Import the cut as an EDL or Final Cut Pro 7 XML, and timecodes move with the picture: removed sections snap to the cut, and the timeline shows where everything lands.

Notes onto a new cut

Notes and markers made on an old version move to the new one, through both cuts. Export them back as a marker EDL for Resolve.

Pin a project offset

Pin +4s for a distributor card, or a whole edit, to Quick Calc. Every timecode you paste comes back shifted.

Free tools

The same engine as the app, in your browser. Nothing you type or paste is uploaded.