Dual subtitles on Netflix, YouTube and Disney+.

A Chrome extension that puts the original line and a second one in the language you choose on screen together. Click any word to save it. Free to start.

Free plan, no credit card. Installs in desktop Chrome. See how it works

Interactive preview of the extension. See it on each platform

Scene: Sintel © Blender Foundation · CC BY 3.0

  • No processing waitWhen the platform has your language, its own subtitles are aligned instantly
  • Unlimited saving, freeWords and phrases, synced when you sign in
  • 100 auto-translated lines a day, freeOnly for lines the platform lacks. Word look-ups don’t count (up to 300 a day)
  • Unlimited auto-translationOnly for lines the platform lacks. Every Pro feature is free too, for now.

From a line you hear to a word you keep.

Five steps, all on the free plan. No uploads, no per-episode processing, no account needed to start watching.

  1. 1

    Watch

    Press play on Netflix, YouTube or Disney+. Both lines appear — from the platform's own track wherever one exists.

    InstantEN → DE
  2. 2

    Click or drag

    Click any word for its meaning. Drag across several words to take a whole phrase.

    keep a secret
  3. 3

    Save

    One click saves it — words keep the subtitle line they came from. No cap on the free plan.

    Saved
  4. 4

    Sync

    Sign in once and your list follows you to every Chrome you use.

    Synced
  5. 5

    Review

    Two-minute cloze review in the side panel — the word, back in its scene.

    Space123

What SubPair does differently.

Each one is something you can check yourself in the first minute of an episode.

Instant

The platform’s own subtitles, with no wait.

Netflix and YouTube often already carry a professionally translated subtitle track in your language. SubPair reads it and aligns it to the original by time — so the second line is ready when the episode starts, not after a server has processed it.

  • Unlimited dual subtitles from the platform’s own tracks, free
  • SubPair draws both lines itself — your player settings stay untouched
  • Auto-translation steps in only for gaps and missing languages
Scene from Sintel with SubPair's real overlay: the English line 'A dragon.' above the German line 'Ein Drache.', with the SubPair side panel marking the title Instant — 26 of 26 lines from Netflix's own track
Scene from Sintel (Blender Foundation, CC BY 3.0) with the extension's real interface. Instant means the second line comes from Netflix's own track.
Phrases

Drag across a phrase. Save it as one.

Languages live in expressions, not single words. Click a word for a quick meaning, or drag across a run of words — an idiom, a phrasal verb, half a sentence — and SubPair translates and saves it as one entry.

  • One click for a word, one drag for a phrase
  • Auto-pause holds the scene while the popup is open
  • Works the same on Netflix, YouTube and Disney+
You never could keep a secret.
Du konntest noch nie ein Geheimnis bewahren.
Phrase keep a secret ein Geheimnis bewahren Save
Free saving

Save as much as you want. On the free plan.

Some tools charge for saving words. SubPair doesn't, and doesn't cap it. Your list lives in the side panel next to the player; sign in and it syncs across devices, shows up on your account page, and downloads as CSV whenever you want it.

  • Words, phrases and sentences — no limit, no paywall
  • Synced to your account when you're signed in
  • CSV export from the side panel or your account page
Words 4 saved
keep a secretein Geheimnis bewahren
phrase
doingmachen, tun · “What are you doing here so late?”
scoldedausgeschimpft · “He got scolded every single day”
betrayverraten · “I would never betray you.”
Synced to your account Export CSV
Practice

Study controls that stay out of the way.

Jump between lines with A S D, blur the translation until you've tried the line yourself, let auto-pause stop at the end of each subtitle, or loop a sentence until it sticks. All free.

Blur translation ein Geheimnis bewahren
Sentence loop On
Auto-pause On
Previous · replay · next ASD

One subtitle layer. Three platforms.

Every title is labeled with how its second line was made — the same badges you'll see in the extension.

Netflix

Instant

Netflix's own translated tracks, aligned by time. Human-quality, no quota.

Scene from Sintel with SubPair's real overlay: the English line 'Someone very dear? A kindred spirit?' above the German line 'Jemanden, der dir sehr lieb ist? Eine verwandte Seele?'
Scene from Sintel (Blender Foundation, CC BY 3.0) with the real SubPair overlay. English on top, German below — any two of 32 languages.

YouTube

InstantAuto-translated when missing

Instant when the video has captions: YouTube's own caption tracks, same alignment engine. Auto-translation fills missing languages.

Scene from Tears of Steel with SubPair's real overlay: the English line 'Look Celia, we have to follow our passions;' above the German line 'Schau Celia, wir müssen beide unserer Bestimmung folgen.'
Scene from Tears of Steel (Blender Foundation, CC BY 3.0) with the real SubPair overlay. Both lines come from the video's own subtitle tracks; auto-translation fills a missing language.

Disney+

Line by line

Line by line today: each line is auto-translated as it appears on screen.

Scene from Sintel with SubPair's real overlay: the English line 'This blade has a dark past.' above the German line 'Diese Klinge hat eine dunkle Vergangenheit.'
Scene from Sintel (Blender Foundation, CC BY 3.0) with the real SubPair overlay. Each line is translated as it appears.
32 languages
Spanish, Japanese, Turkish, Polish and more — pair any two.
Full transcript
Every line of the episode in both languages; click one to jump there.
SRT export
Download an episode's subtitles — original, translation, or both.
Timing offset
Shift subtitles up to ±5 seconds if a track runs early or late.

What SubPair does.

Where the second line comes from, what stays free and what Pro costs.

Where the second line comes from and what you get for free.

Instant pairing from the platform’s own tracks
When a title has a subtitle track in your language, SubPair lines it up with the original by time. Nothing to process first.
Free, unlimited saving
Save words, phrases and sentences with no cap. Sign in to sync them across devices.
100 auto-translated lines a day, free
Used only for lines the platform doesn’t have. Word look-ups have their own allowance of up to 300 a day.
Pro: $4.99/mo or $39/yr
Unlimited auto-translation, per-line appearance and Anki export with scene context. Cancel any time.
Free for everyone right now
SubPair is free for everyone right now: unlimited auto-translation and every Pro feature, no account needed to start. A paid Pro plan may come later.

Free to watch and learn. Pro for heavy translation.

Everything in the learning loop is free — saving, review and CSV export included. Pro removes the daily auto-translation limit, unlocks per-line appearance and adds Anki export.

Free for everyone right now

SubPair is free for everyone right now: unlimited auto-translation and every Pro feature, no account needed to start.

Free

$0

Everything SubPair does, with no daily limit

Get SubPair free
  • Unlimited dual subtitles from the platform’s own tracks
  • Unlimited auto-translation
  • Click-word dictionary & phrase drag-select
  • Unlimited saving, synced across devices
  • Review mode, transcript, side panel & CSV / SRT export
  • Per-line appearance: size, color, shadow, box style & background for each line
  • Anki export with scene context

Pro

Coming later

A paid Pro plan may come later. Nothing to buy today, and no card needed.

Free

$0 forever

The whole learning loop

Get SubPair free
  • Unlimited dual subtitles from the platform’s own tracks
  • 100 auto-translated lines a day; word look-ups don’t count (up to 300 a day)
  • Click-word dictionary & phrase drag-select
  • Unlimited saving, synced across devices
  • Review mode, transcript, side panel & CSV / SRT export
  • Not included: Unlimited auto-translation
  • Not included: Per-line appearance
  • Not included: Anki export with scene context

Pro

$4.99 /month

Billed monthly, cancel anytime

  • Everything in Free, plus:
  • Unlimited auto-translation
  • Per-line appearance: size, color, shadow, box style & background for each line
  • Anki export with scene context

Paying yearly: $39, about $3.25 a month, 35% less than monthly.

What is SubPair?

SubPair is a Chrome extension that shows two subtitle lines at once on Netflix, YouTube and Disney+: the original and a translation in your language. Click any word for its meaning, save words and phrases, and review them later. It is currently free for everyone, with unlimited auto-translation and every Pro feature; a paid Pro plan may come later.

Privacy-minded
Platform subtitles never leave your browser. Lines sent for auto-translation are logged with their title for 30 days, then deleted. No data is sold.

Something missing? Email us — a person answers.

Two languages. One screen. No waiting.

Install the extension, pick your two languages and press play. Free plan, no credit card.