About FrameMath

Small tools for the small math that fills a video professional's day.

FrameMath is built by a team with a background in film and television production — the people who have actually sat in edit suites arguing about drop frame timecode and re-exporting files to squeeze under an upload limit.

We kept noticing the same thing: the calculations editors do every day are simple, but the free tools for them are scattered across ancient personal homepages, Excel sheets and forum posts. So we're building the versions we always wanted: fast, accurate, mobile-friendly, and honest about the underlying math (every tool page explains how the calculation works).

Our principles

• Free, forever. The site is supported by unobtrusive advertising — never by paywalls or signups.
• Private by design. Every calculation runs in your browser. Scripts and subtitle files never leave your device.
• Professionally accurate. Drop frame math follows the SMPTE standard; presets match current platform specs; we cite our sources in the guides.

Spotted an error, or want a tool that doesn't exist yet? Tell us — the roadmap is driven by what working editors ask for.