Translation & language

subtitle-translator-electron

Translate subtitle files with an AI, as a desktop app

Visit official page 日本語で詳しく見る

Popularity

★ 1.7k

Last update

August 2026

License / pricing

MIT

What it does

Load a subtitle file (.srt, .ass, .vtt and others) and it translates the lines using an AI, taking surrounding sentences into account so the result reads better than line-by-line machine translation. Interrupted jobs can be resumed from a saved checkpoint. The app is free but you supply your own API key and pay for the usage, which scales with the number of lines - try a short file first to gauge the cost.

Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.

Screenshots & visuals

Before you start

Setup difficultySome setup needed
Command lineNot required
API keyRequired
Sends data onlineYes

Judged automatically from the project's own metadata. Always confirm on the official page.

subtitle-translator-electron FAQ

Is subtitle-translator-electron free?: subtitle-translator-electron itself is free, but it needs an API key for an external AI service. That service charges separately, though some have a free tier.
Do I need to install anything or write code to use subtitle-translator-electron?: You install it like a normal desktop app. No command line involved.
Does subtitle-translator-electron work on a phone?: No. It needs a computer.
Can I use subtitle-translator-electron commercially?: The licence is MIT, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.

How it compares

The conditions that decide whether you can actually use it, side by side.

Tool	Command line	API key	Sends data out	Phone	Commercial use
subtitle-translator-electron (this page)	Not needed	Required	Yes	No	Yes
Auto-Synced-Translated-Dubs	Required	Required	Yes	No	Yes
RTranslator	Not needed	Not needed	No	Yes	Yes
Translate Web Pages (TWP)	Not needed	Not needed	Yes	No	Yes

"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.

Other translation & language tools

Auto-Synced-Translated-Dubs

Dubs a video from its subtitles, keeping the timing intact

RTranslator

An offline real-time interpreter on your phone

Translate Web Pages (TWP)

Translate the page you're on, in place

Translumo

Reads text off your screen and overlays a live translation

Browse all tools Home

What it does

Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.

subtitle-translator-electron FAQ

Is subtitle-translator-electron free?

subtitle-translator-electron itself is free, but it needs an API key for an external AI service. That service charges separately, though some have a free tier.

Do I need to install anything or write code to use subtitle-translator-electron?

You install it like a normal desktop app. No command line involved.

Does subtitle-translator-electron work on a phone?

No. It needs a computer.

Can I use subtitle-translator-electron commercially?

The licence is MIT, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.

How it compares

The conditions that decide whether you can actually use it, side by side.

Tool	Command line	API key	Sends data out	Phone	Commercial use
subtitle-translator-electron (this page)	Not needed	Required	Yes	No	Yes
Auto-Synced-Translated-Dubs	Required	Required	Yes	No	Yes
RTranslator	Not needed	Not needed	No	Yes	Yes
Translate Web Pages (TWP)	Not needed	Not needed	Yes	No	Yes

"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.