A small Chrome extension for Netflix + YouTube

Watch in two languages. Stay in the scene.

Your learning language on top. A quiet translation underneath. Click the phrase when it still makes no sense.

Free. No account.

preocupes do not worry

Negative command. Reassuring here.

No te preocupes por nada de eso

Do not worry about any of that

No new routine

Look it up.
Keep watching.

Click a word or drag a phrase. The answer opens beside the line.

Two friends talking in a bright seaside kitchen
Costa Norte Episode 4
01

Target first.

The line you are learning stays on top.

02

Translation second.

Blur it until you need it.

03

One-key replay.

Alt-R. No scrubbing.

Quiet on purpose

Most of the time,
do nothing.

Pick two languages. Press play.

DubstackOn this video
Learning Spanish
Translation English

Both tracks ready

Read first

Peek second.

Hide the familiar line until you need it.

Missed it?

Replay the line.

Alt-R. That is the whole trick.

Worth keeping?

Save the sentence.

Export later. If later happens.

Reliability

The boring priority:
keep it working.

Streaming sites change. Fixes stay public.

See the changelog

Privacy

Private by default.

Free features stay in Chrome. Premium sends only the phrase you ask about.

Read the policy

Plans

Use it free.
Pay for the weird lines.

Premium is for idioms, grammar, and tone. Not basic subtitles.

Free

$0

Dual subtitles, phrase lookup, replay, blur, saved lines, and export.

Get Dubstack

Premium

$4/mo

Short notes for idioms, grammar, and tone. Translation fallback. Up to 150 explanations a day.

Before you ask

A few useful details.

Which languages work?

Any subtitle languages the video provides. YouTube auto-translate can add more.

What if Dubstack has no line ready?

Your usual captions stay on. Dubstack only replaces them when its own lines are ready.

Is this part of Netflix or YouTube?

No. Dubstack is independent.