
Subtitling Assistant
Tero Subtitler uses the power of whisper.cpp and its AI to automatically recognize and create subtitles from audio.
Tero Subtitler is an open source, cross-platform, and free subtitle editing software. Designed to prepare subtitles for any content and all major streaming services easily.


Multi-language, validation, automatic checks and much more!

Tero Subtitler uses the power of whisper.cpp and its AI to automatically recognize and create subtitles from audio.

Translate and reuse! Save time translating your projects with Tero's translation memory support.

No more switching between video player and text editor. Shortcuts control playback without taking your hands off the keyboard, and you can export to plain text compatible with any application.

A powerful conversion tool, allowing you to convert files between different formats and frame rates.

A timeline with waveform, subtitles and shot changes, so you can time every line precisely.

List view with all the information you need, including common errors marks.
Yes! There is an easy and free way to create subtitles. A single license for everyone, and it's free!
You can use Tero Subtitler for work, for a hobby, for teaching, for whatever!