Subruu 川流字幕 · subs in full flow
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00:00:00 “OPENING”

The streams you never understood finally make sense.

Open a foreign-language stream and subtitles just appear.
YouTube, Twitch and more — if it has audio, Subruu can translate it, live or pre-recorded. Lines surge in like a flowing river, precisely aligned with the picture, translated while you watch. No waiting.

LANG
90+ languages
ZERO
0 drift frame-aligned
QUALITY
90% of human quality
00:01:42 “WHY SUBRUU”

Generated live, not edited after.

Subtitles come out while the audio plays, aligned to the picture — no waiting for editors or caption uploads. Open it and it works, with translation close enough to human that nothing pulls you out of the moment.

  1. 01

    0 drift between picture and subtitles. The words land as they're spoken.

    Live stream or local video, subtitles stick to the picture — not half a beat behind like typical AI captions. Punchlines don't get spoiled early, and interview moments don't get cut off mid-emotion.

    • YouTube · Twitch · more
    • Live & recorded video
    • No post-editing wait
  2. 02

    Translation quality close to human subtitles.

    Not just word-for-word conversion — slang, jokes and technical terms come out natural and on point, like a professional translator watching along with you. Interviews, tutorials and deep-dive content stay fully readable — you don't just get the words, you get the meaning.

    • Near-human quality
    • Slang & jokes land
    • Deep content, no barrier
  3. 03

    Pay for what you use. No monthly fee.

    No subscription, no auto-renew — nothing to forget to cancel when you move on. Credits are yours once bought and never expire; from NT$5 an hour you get near human-grade translation.

    • No monthly fee · no auto-charge
    • Credits never expire
    • From NT$5 / hour
00:03:12 “THREE STEPS”

Translate any stream in three steps.

  1. step.01

    Install the Chrome extension

    Grab the ZIP from the download section below, load the folder, and sign in to connect securely to the subtitle backend. First time? Follow the illustrated install guide.

  2. step.02

    Open a stream or video

    The extension captures the current tab's audio. YouTube Live, Twitch and regular HTML5 video all work; YouTube live streams automatically open a synced viewing tab.

  3. step.03

    Watch the subtitles

    A floating subtitle window shows the original and the translation. Font, colors and opacity adjust while you watch, and transcripts save to your member account automatically.

00:04:20 “DOWNLOAD”

Download the extension, set up in 3 minutes.

Download it right now. Follow the 5 install steps on the left and the 3 usage steps on the right — no commands, no terminal. First install? The install guide walks through every screen.

“CHROME EXTENSION”

Subruu Live Subtitle Extension

  • Version v0.1.2
  • ~750 KB
  • Chrome 116+
  • Windows · macOS
Download extension (ZIP) Illustrated install guide

Unzip it, then load the folder as shown on the right

“INSTALL · 5 STEPS”

  1. 1

    Download & unzip

    Click the button above to get the ZIP, then extract it into a folder.

  2. 2

    Open the extensions page

    Copy chrome://extensions into the address bar and press Enter.

  3. 3

    Turn on Developer mode

    Flip the “Developer mode” switch in the page's top-right corner.

  4. 4

    Load unpacked

    Click “Load unpacked” and pick the folder you just extracted.

  5. 5

    Pin it to the toolbar

    Click the puzzle-piece icon in the toolbar and pin Subruu.

“USE · 3 STEPS”

  1. 1

    Sign in

    Click the extension icon and sign in with Email or Google (same account as this site).

  2. 2

    Open a video, pick languages

    Open YouTube, Twitch or any video, then choose the source and target languages.

  3. 3

    Hit start, watch subtitles

    The floating subtitle window appears — drag it, restyle it, adjust opacity.

TIP YouTube's default mode is the cheapest; for Twitch / IG Live pick “Live delay sync”.

00:05:30 “PLANS”

Pay for what you use.

No monthly fee, no auto-renew — nothing to forget to cancel. Credits are yours once bought; from NT$5 an hour you get subtitle translation close to human quality.

“ENGINE TIERS”

Three budgets, three subtitle styles.

“LIVE · LIGHTNING”

NT$20/ hour

Lightning STT + Fast translation combo

  • Under 10 s behind live — the strongest “being there” feel
  • Pick this to follow chat and react in real time
“PRO TRANSLATION”

NT$15/ hour

Pro STT + High-quality translation combo

  • Closest to human subtitles — every word clear
  • Steadiest with accents & jargon; great for interviews and lectures
“ECONOMY”

NT$5/ hour

Mini STT + Economy translation combo

  • Cheap enough for binge sessions and all-day streams
  • Low delay, steady translation — plenty for daily use

“100,000 credits = NT$100 · actual deduction depends on engine combo & usage”

“starter”

Starter Pack

NT$100

100K credits total

Great for trying YouTube Live, Twitch, and comparing engine latency.

  • 100,000 credits, credited all at once
  • ≈ 20 hrs on Economy
  • High-quality & economy engines included
  • Credits never expire · Not a subscription
“daily”

Daily Pack

NT$200+25%

200K+ bonus 50K

250K credits total

For watching streams and shows every day.

  • 250,000 credits, credited all at once
  • ≈ 50 hrs on Economy
  • High-quality & economy engines included
  • Credits never expire · Not a subscription
“studio”

Studio Pack

NT$2,000+50%

2,000K+ bonus 1,000K

3,000K credits total

For team accounts, event streams, and bulk testing.

  • 3,000,000 credits, credited all at once
  • ≈ 600 hrs on Economy
  • High-quality & economy engines included
  • Credits never expire · Not a subscription

“Conversion: 1 hr on Economy ≈ 5,000 credits · varies with engine combo & usage”

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