Sublo - Subtitle Translator for Netflix, HBO Max, Disney+ & More

About

Sublo – Subtitle Translation for Netflix, HBO Max, Amazon Prime & More

Watch any show or movie in your language — or learn a new one — with real-time subtitle translation across all major streaming platforms.

Sublo adds a second subtitle track directly on top of your video player. While the original subtitles run as usual, Sublo simultaneously shows a translated version in any of 30+ languages — no extensions to disable, no settings to dig through, no interruptions to your watching experience.

HOW IT WORKS

Install Sublo from the Chrome Web Store
Open Netflix, HBO Max, Prime Video, Disney+, or any other supported platform
Start playing a video with subtitles enabled
Sublo automatically detects the subtitles and displays the translation below or above them
Customize font size, color, position, and opacity directly from the popup
That's it. No account required to get started.

SUPPORTED STREAMING SERVICES

Watch your favorite Shows with translated Subtitles on Netflix, HBO Max, Prime, Disney+, YouTube and many more.

SUPPORTED LANGUAGES (30+)

English, German, Spanish, French, Portuguese, Italian, Chinese (Simplified), Chinese (Traditional), Japanese, Korean, Russian, Turkish, Arabic, Dutch, Polish, Indonesian, Swedish, Norwegian, Danish, Finnish, Ukrainian, Czech, Romanian, Hungarian, Greek, Slovak, Bulgarian, Slovenian, Estonian, Latvian, Lithuanian

FREE PLAN

15 minutes of translated subtitles per day
All languages included
All streaming services included
Full style customization

PRO PLAN

Unlimited subtitle translation — no daily cap
Everything in Free
Upgrade directly from the extension popup or at subloapp.com.

FULLY CUSTOMIZABLE

Every aspect of both subtitle tracks can be adjusted independently:

Font size (12–48px)
Font color
Background color and opacity
Font weight (normal or bold)
Position (top or bottom of screen)
Edge offset
Two subtitle tracks can be configured independently — for example, show the original English at the bottom and a German translation directly above it.

DESIGNED FOR

🎓 Language learners — Immerse yourself in your target language while keeping the original as a safety net. Studies show that reading subtitles in both your native language and your target language significantly accelerates vocabulary acquisition and listening comprehension.

🌍 Bilingual households — One family member wants German, another wants English? Run both at the same time without compromise.

🌐 International viewers — Access content in languages you're comfortable with, regardless of what the platform natively supports.

🎬 Film enthusiasts — Watch foreign-language films with subtitles in your language while preserving the original dialogue for a more authentic experience.

PRIVACY

Sublo does not collect or store any personal data. Subtitle content is sent to our translation service to generate translations, but is never stored or associated with your identity. No browsing history is recorded. The extension only activates on supported streaming platforms.

Full privacy policy: subloapp.com/privacy.html

FREQUENTLY ASKED QUESTIONS

Does Sublo work in fullscreen?
Yes. Sublo is designed to work in fullscreen mode across all supported platforms. The overlay repositions automatically when you enter or exit fullscreen.

Do I need to create an account?
No. The free plan works immediately after installation without any registration. To unlock Pro, you purchase a license key which you enter once in the popup — no account, no password.

Will Sublo interfere with the platform's built-in subtitles?
No. Sublo runs alongside the platform's existing subtitle system without modifying it. The original subtitles are unaffected.

Which languages can be translated?
Any of the 30+ languages listed above can be used as source or target language. Auto-detect is also available for the source language.

What happens when the free daily limit is reached?
Sublo stops showing the translated subtitle track. The original subtitles on the platform continue to work normally. The limit resets at midnight.

Is my video content or subtitle data sold to third parties?
No. Subtitle text is only used to generate translations and is never sold or shared with third parties. See our privacy policy for full details.

Does it work with anime on Crunchyroll?
Yes, Crunchyroll is fully supported.

Can I use Sublo on YouTube?
Yes. YouTube is supported, including auto-generated captions.

TECHNICAL NOTES

Sublo uses a PerformanceObserver to detect subtitle file requests at the network level, making it compatible even with streaming platforms that load subtitles via Web Workers or background processes. It supports WebVTT, TTML/IMSC, and SRT subtitle formats. DASH manifest parsing allows Sublo to proactively load segmented subtitle tracks without requiring any user interaction beyond enabling subtitles once in the player.

Sublo is built and maintained independently. For support or feedback, contact [email protected] or visit subloapp.com.

Sublo is not affiliated with Netflix, HBO Max, Amazon, Disney, Apple, or any other streaming platform mentioned above. All trademarks belong to their respective owners.