Subtitle Downloader

Utility that helps download subtitles from different websites.

Users10K

Rating3.4

Reviews11

Manifest versionV3

7-day growth0

7-day growth rate0%

Preview

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1 assets

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30-day rating change

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3.36

Latest

3.36

30-day rating change

0.00

2026年5月29日2026年6月4日

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Technical snapshot

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Version0.1.0

ManifestV3

Size43.4KiB

Languages1English (United States)

Published--

Store updated--

Last crawled--

Overview

Product summary

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This is an extension that allows users to download subtitles for Youtube, Netflix and NPOstart. This is useful for language learners, because they will be able to look up words and sentences from videos they are watching in order to increase their understanding of a foreign language.

Reviews

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The Chrome Web Store shows 11 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

5★

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AI product read

Download subtitles from YouTube, Netflix, and NPO Start video pages

Language learners need access to subtitle text from streaming videos to look up words and study foreign languages, but streaming platforms don't provide easy subtitle download options

1. User navigates to a video on Netflix, YouTube, or NPO Start. 2. Extension content scripts intercept platform's internal JSON data to extract subtitle track information. 3. User clicks the extension popup and presses 'Get available subtitles'. 4. Extension queries the content script for available subtitle tracks. 5. Available subtitle languages are displayed in a dropdown. 6. User selects a language and clicks 'Download' to save the subtitle file.

Target users: Language learners studying foreign languages / Users who want to extract subtitle text from streaming video content

No YouTube worker.js file present in package despite being referenced in manifest web_accessible_resources - may indicate incomplete packaging or the YouTube feature uses a different approach (direct page scraping via content script)
No source code for npo.js appears to be used by any entry point in the current manifest (it's not referenced in content_scripts), suggesting it may be legacy code
Cannot fully verify whether the extension works without being logged into Netflix/NPO Start since the subtitle interception depends on those platforms' internal APIs being active

Monetization

No paid features detected

The extension itself has no paid features, premium tiers, subscription gates, or billing integration. All keyword hits for 'paid' terms are false positives: 'pro' in netflix/worker.js refers to Netflix subtitle profiles (data.params.profiles), 'license' in jquery.min.js is the jQuery MIT license header. No payment platforms, upgrade prompts, or feature gates found in the source code.

Confidence: 95
Payment platform: --
Source: AI / High
Login required: Yes
Reason: The extension itself has no login mechanism, but it operates on Netflix (requires paid subscription/account), NPO Start (may require account), and YouTube (free). For the Netflix subtitle extraction feature to work, the user must be logged into Netflix with an active subscription. The extension intercepts Netflix's internal JSON API responses, which only occur when a logged-in user is watching content.

Permission risk

Medium-risk permissions

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

扩展能力较强：activeTab、downloads

Publisher

clarapastore17

Independent publisher

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