Tools That Get Out
Of Your Way
We make focused, professional software for video editors, post-production teams, and families using AAC. Every product runs locally on your device — fast, private, and one-time purchase wherever possible.
Products
Four products. One philosophy.
Each app does one thing well. No subscriptions where one-time purchase makes sense. No cloud uploads where local processing works. No bloat.
Post-Production Plugin
SilenceScout
Find & remove silence without leaving your timeline
Professional silence and freeze-frame detection plugin for Final Cut Pro and DaVinci Resolve. One license covers both NLEs — analyze a 1-hour recording in under 30 seconds.
QC Utility
FDUtility
Frozen-frame detection for pros
Standalone Mac app that catches frozen frames, recording dropouts, and VFR artifacts in your footage — frame-accurate flagging before they ruin your final export.
Audio Utility
SDUtility
Silence detection utility
Standalone Mac app for silence detection across any audio source. Configurable thresholds, magnetic timeline UI, fast batch analysis. Perfect for editors who want the engine without the plugin overhead.
Accessibility
ExpressMe Communicator
AAC made simple, for everyone
Augmentative and Alternative Communication app designed for iPad. Built for people who use icons, symbols, and speech synthesis to communicate. Designed for ease, dignity, and independence.
About
What KymeraJ stands for
KymeraJ is an independent software studio building focused, native tools for macOS, iPadOS, and iOS. Founded by Kaz Takahashi, based in New York.
Native first
We build on Apple Silicon, Metal, Accelerate, AVFoundation, and CoreML — the platforms our users already trust. No Electron, no cross-platform compromises where a native solution exists.
Local by default
Your footage, your audio, your communication — none of it leaves your device. Every product processes locally. No cloud uploads, no telemetry by default.
Built for working pros
We make tools we'd want to use ourselves: editors hunting silence, QC supervisors flagging dropouts, families using AAC. Real workflows, real time saved.
One-time purchase
Subscriptions everywhere makes sense for some products, not all. Where it makes sense, we charge once and ship lifetime updates.
Get in touch
with KymeraJ
Product questions, partnership inquiries, accessibility feedback, or press requests — happy to hear from you.