Stable signalNo paid features detectedHigh-risk permissions

Substital: Add subtitles to videos and movies

Add captions to any video or movie on Netflix, Youtube or other platforms.

Users300KCurrent public install base

Rating4.3Store average score

Reviews3,175Public review volume

Manifest versionV3Extension platform version

7-day growth0Net users gained this week

7-day growth rate0%Relative weekly velocity

Preview

Substital: Add subtitles to videos and movies Media preview

5 assets

Trend

User growth trend

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User Growth Over Time

Rating trend

7-day rating trend

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7-day rating change

Start

4.33

Latest

4.33

7-day rating change

0.00

2026年7月15日2026年7月21日

Growth overview

Daily, weekly, and monthly growth

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1-day growthNo data

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7-day growthFlat

00%

30-day growthNo data

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Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version2.10.3

ManifestV3

Size1.56MiB

Languages3Deutsch / English / français

Published--

Store updated--

Last crawled--

Overview

Product summary

Review the store description, core capabilities, and common use cases.

Be it on Netflix, Disney+, Youtube or any other online streaming website - Our mission is to fill any language gap that exists whether for entertainment, language learning or to make videos accessible to the Deaf and Hard-of-Hearing.

RECENT UPDATES:

- 01.09.25 Fix issues with HBO Max, Netflix, and Disney+. Mubi is now officially supported!

- 03.05.25 Fix issues with Amazon Prime Video and Dailymotion.

- 22.12.24 Update to ManifestV3. Fixes issues with Disney+ and ok.ru.

- 21.01.24 Use the new OpenSubtitles API and fix an issue with downloading subtitles

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

Store average score4.3Chrome Web Store aggregate rating, including ratings without synced review text

Synced text average4.1Average computed only from synced review bodies below

Reviews with text1,654Synced review bodies

Total ratings / reviews3,175Chrome Web Store public rating/review count

Store average score: 4.3. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5★

1034

4★

220

3★

100

2★

1★

230

Ahmed Mahmoud2026年5月18日

ممتازة جدا ممكن الاستفادة منها للتعلم بدلا من الاعتماد على ادوات الترجمة التلقائية على سبيل المثال موقع زى يوديمى تقدر تسحب منه الترجمة الانجليزية او اي لغة اخري عن طريق اضافة مخصصه لكده (فيه كتير زى Udemy Subtitle Radar) بعدها ترفع الملف المسحوب او تنسخه لاي اداة من ادوات الذكاء الاصطناعى وتطلب منه ترجمة الملف للغة العربية وبكده انت بقا معاك ترجمة حرفيا كانها بشرية وده افضل بكتير من الاعتماد على ادوات الترجمة التلقائية لانها بتترجم ترجمة حرفية دى كانت طريقة جربتها حبيت اشاركها يمكن حد يكون محتاجها او بيدور على حاجة شبه كده , تقدر كمان تحل مشكلة عرض النص من الشمال لليمين خصوصا في الترجمات العربية لانه الترجمة ممكن متبقاش مفهومة عن طريق برنامج Subtitle Edit الطريقة معقدة شوية بس الموضوع في نظري يستحق وبالتدريج هيبقا سلس معاك

Mary Gwen Dungan2026年5月17日

I just started, and I'm having trouble with synchronization. I see others say it's good, so I'll keep trying. Otherwise, great service!

Elijah Raven Sy2026年5月7日

Good but it glitches/hangs/freezes sometimes. the synchronization thingie is good tho

Cris Monaco2026年5月2日

Buenísima esta extensión. Poder ver videos online en cualquier idioma y agregarle subtitulos sin descargar nada era algo que venía buscando hace tiempo.

gamer king2026年4月28日

“Why, when I play a video using your add-on, does a black screen appear on the GoFile video (SoftSub)? Please fix this issue.”

Mert Yılmaz2026年4月27日

çok iyi

Mora William2026年4月27日

Excellent

Duy Nguyen Tan2026年4月25日

wollte ein Ger dub und viet sub, konnte super durch die Erweiterung gelöst werden ! mega

Robert Rywalski2026年4月19日

na razie się sprawdza

Vishnu Shiva2026年4月18日

Works really well so far and very useful when movies don't have subtitles in the video player but you can get subtitles online.

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AI product read

Add subtitles/captions to online videos and movies on streaming platforms

Bridges language gaps for entertainment, language learning, and accessibility for deaf and hard-of-hearing users by enabling subtitle overlay on any online video

1. User navigates to a video on a supported streaming platform. 2. User clicks the Substital extension popup. 3. User either searches for subtitles via the built-in search (uses OpenSubtitles) or drags-and-drops a local .SRT file. 4. Subtitles are overlaid on the video player. 5. User can adjust sync timing and customize appearance (size, colors).

Target users: Non-native language speakers watching foreign content / Language learners / Deaf and hard-of-hearing users / Viewers of content without available subtitles in their language

Bundles are heavily minified, making it difficult to trace exact authentication and payment flows
Could not confirm whether the .signin-btn UI is actively rendered or vestigial code
Could not verify if OpenSubtitles API requires authentication for subtitle search

Monetization

No paid features detected

The extension itself has no paid features, subscription plans, or feature gating. The PayPal link found (https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=QDDCUJHJMW66Y) and reference to substital.com/donations are voluntary donations, not paid feature unlocks. The 'pro' and 'premium' keyword hits in minified bundles are from the Plyr video player library and React boilerplate code, not subscription tiers. All described features (subtitle search, drag-drop SRT, sync, customization) appear freely available.

Confidence: 80
Payment platform: PayPal
Source: AI / Medium
Login required: No
Reason: The extension has a signin-btn CSS class in popup/styles.css (lines 404-417), suggesting an optional sign-in UI exists. However, the core workflow—adding subtitles via drag-and-drop .SRT files or searching OpenSubtitles—does not require authentication. The sign-in likely relates to OpenSubtitles API access for searching subtitles, which may be optional or use an API key. No mandatory login flow gates the core subtitle-addition functionality.

Permission risk

High-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

扩展能力较强：activeTab、storage、scripting、webRequest
主机权限覆盖范围较宽

Publisher

Substital

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