# NekoCap

> Create and upload community captions for YouTube videos (and more) with this easy to use extension that supports SSA/ASS rendering.

Canonical page: [https://chrome-stats.com/d/nekocap](https://chrome-stats.com/d/nekocap)

## Overview

- **ID:** `nekocap`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** nopol10
- **Category:** photos-music-videos,games-entertainment
- **Daily users:** 379
- **Weekly downloads:** 5
- **Rating:** 5.00 / 5 (8 ratings)
- **Version:** 1.23.2
- **Last updated:** 2026-06-05
- **First published:** 2021-01-10
- **Size:** 4.94 MB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/nekocap/)
- **Website:** [https://nekocap.com](https://nekocap.com/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/nekocap/privacy/](https://addons.mozilla.org/firefox/addon/nekocap/privacy/)

## Description

NekoCap is an open-source Chrome extension that empowers users to create, view, and share community captions for videos on popular streaming platforms like YouTube, Netflix (beta), niconico, Vimeo, bilibili, and TVer. It supports advanced caption rendering, especially for SSA/ASS formats, offering a rich viewing experience with cool effects.

With NekoCap, users can easily create captions directly in their browser using the built-in editor, tweak externally created captions across various formats (SSA, ASS, SRT, VTT, SBV), and export their work, primarily in SRT format. The extension also features a community-driven platform where captions are submitted, rated, and shared, enhancing accessibility and engagement. Currently in alpha, NekoCap invites users to contribute and join its community on Discord for feedback and development.

## Rankings

- #5,887 — Overall
- #82 — contribute
- #89 — submit
- #134 — community
- #150 — upload
- #153 — create

## Permissions and access

### Permissions

- `storage`
- `webNavigation`
- `identity`

### Content script matches

- `*.youtube.com`
- `*.tver.jp`
- `*.nicovideo.jp`
- `*.vimeo.com`
- `*.bilibili.com`
- `*.netflix.com`
- `*.primevideo.com`
- `*.twitter.com`
- `*.x.com`
- `*.wetv.vip`
- `*.tiktok.com`
- `*.iq.com`
- `*.abema.tv`
- `*.dailymotion.com`
- `*.bilibili.tv`
- `*.nogidoga.com`
- `*.cu.tbs.co.jp`
- `*.instagram.com`
- `*.unext.jp`
- `*.lemino.docomo.ne.jp`
- `*.oned.net`
- `*.archive.org`

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Request access to the following domains: youtube.com, tver.jp, nicovideo.jp, vimeo.com, bilibili.com, netflix.com, primevideo.com, twitter.com, x.com, wetv.vip, tiktok.com, iq.com, abema.tv, dailymotion.com, bilibili.tv, nogidoga.com, co.jp, instagram.com, unext.jp, ne.jp, oned.net, archive.org
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [Community Captions Viewer](https://chrome-stats.com/d/community-captions-viewer) — 1 users
- [YouCap](https://chrome-stats.com/d/youcap) — 7 users, 3.00 / 5
- [Caption Sharing Hub](https://chrome-stats.com/d/caption-sharing-hub) — 1 users
- [YouTube Captions Search](https://chrome-stats.com/d/youtube-captions-search) — 141 users, 3.78 / 5
- [Youtube Caption Reader](https://chrome-stats.com/d/youtube-caption-reader) — 2 users
- [CaptionMaster Analytics](https://chrome-stats.com/d/captionmaster-analytics)
- [Vimeo Captions](https://chrome-stats.com/d/vimeo-captions) — 3 users
- [Ketuvia: accessible YouTube captions](https://chrome-stats.com/d/ketuvia-accessible-captions) — 15 users, 4.45 / 5
- [CaptionSubtitleTool](https://chrome-stats.com/d/time) — 318 users, 3.67 / 5
- [CaptionGo – Live Captions & Dual Subtitles](https://chrome-stats.com/d/captiongo) — 458 users, 1.00 / 5
- [Youtube CC standin](https://chrome-stats.com/d/youtube-cc-standin) — 1 users
- [CCaptioner](https://chrome-stats.com/d/ccaptioner) — 755 users, 4.10 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/nekocap)