Stable signalNo paid features detectedMedium-risk permissions

Rajiko

Rajikoはradiko.jpのジオロケーション制限を解除するツールです！大阪、長崎、そして海外から東京、青森などのラジオをお楽しみください！

Users100KCurrent public install base

Rating4.6Store average score

Reviews182Public review volume

Manifest versionV3Extension platform version

7-day growth0Net users gained this week

7-day growth rate0%Relative weekly velocity

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Start

4.63

Latest

4.63

7-day rating change

0.00

2026年7月15日2026年7月21日

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1-day growthFlat

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7-day growthFlat

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Version3.2026.2

ManifestV3

Size232KiB

Languages3English / 中文（中国） / 日本語

Published--

Store updated--

Last crawled--

Overview

Product summary

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radiko.jpをジオロアンロックして、日本国内そして海外からも日本各地のラジオを聴ける。

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To celebrate the reunion of Kalafina at the end of 2024, Rajiko will be continued to support Chromium based browsers.

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You could sponsor me via [Ko-fi](https://ko-fi.com/jackyzy823) ! Thank you!

Note: For Japanese or japan resident, Please don't sponsor unless you've subscribed a Radiko's premium plan(https://radiko.jp/premium)!

Reviews

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Store average score4.6Chrome Web Store aggregate rating, including ratings without synced review text

Synced text average4.6Average computed only from synced review bodies below

Reviews with text126Synced review bodies

Total ratings / reviews182Chrome Web Store public rating/review count

Store average score: 4.6. 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★

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1★

a z2020年8月12日

8月11日使用好像失效了，是不是和radiko网页改版有关系？8月4日时还可以用，广播页面不能显示，多刷几次一瞬间看见不在该国不能使用试听3分钟。如果可能的话改进一下谢谢。用了firefox游览器一切正常，难道时谷歌游览器的问题？都是最新版本，谢谢，我用Firefox吧

Rika Akiba2020年7月21日

好用谢谢~

Jeremy Abel (jabelsjabels)2020年7月13日

This works perfectly, thanks so much!!!

Cenitoria2020年4月16日

I don't know who you are but you're a god and I'm so happy.

Murve Invictus2020年4月7日

太牛逼了！

Core2 Quad (Core2Quad)2020年4月1日

There are 2 new radio channels (JOYFM, AFM) added to radiko today (April 1st). The extension cannot play them.

ponde lions2020年3月3日

2023/04/25投稿　本日radiko.jp公式TOPページ（https://radiko.jp）にアクセスしたところ、ページ左上にあるradikoのロゴの右側にローマ字で都道府県名が表示されるようになりました。 [R]ボタンを押してエリア設定をしても、希望の都道府県に設定できなくなっています。ちなみに、昨日(2023/04/24)までは拡張機能『rajiko』の機能がONになっていれば、radikoロゴの右側は都道府県名が表示されず空白で、「R」ボタンでエリア選択した都道府県の放送局がTOPページに表示されていました。 radiko.jpが「radiko埋め込み3分シェアラジオ機能」というサービスを開始したので、radikoの配信サーバーのシステム変更が影響しているのでしょうか？ Chrome版rajiko、firefox版rajiko両方とも確認してみましたが、症状は変わらないです。

freeofr2020年2月1日

最初はエリアを変えていましたが、最近エリアを変更しなくても常に全国聴けるようになりました！笑バグ？ですかね？便利ですのでこのままでいいです。あと録音機能はなくなってしまったのでしょうか・・・。

更新山田2020年1月18日

本当に最高です。いままでフリーのVPNを時間をかけて探してツールを使ってダウンロードするのにすごい時間をかけていましたが、これのおかげで1分くらいですぐにダウンロードできるようになりました。強いて言うならタイムフリーのダウンロードのタイトルをラジオのタイトルにしてほしいです。それ以外は本当に最高です！

Olivia Quorra2020年1月6日

Thats great!! thanks. This is super useful

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AI product read

Bypass radiko.jp geolocation restrictions to listen to Japanese radio from any region or overseas

radiko.jp restricts radio streaming to specific Japanese regions based on IP geolocation. Users outside their registered area (or overseas) cannot listen to stations from other regions. Rajiko solves this by using the Android authentication flow with spoofed GPS coordinates instead of IP-based location checks, allowing access to all Japanese radio stations.

User installs extension and optionally selects a Japanese region in the popup. When visiting radiko.jp, the extension automatically intercepts auth requests and injects spoofed GPS coordinates for the selected area, bypassing geo-restrictions. User can then play any station. For recording, user clicks the record button in the popup during live playback. For timeshift downloads, user navigates to a timeshift program page and clicks the download button.

Target users: Japanese radio listeners outside their registered region in Japan / Overseas Japanese radio fans who want to access radiko.jp / Users who want to record or download radiko radio content

The source code is available and well-documented with a detailed README, making analysis reliable. No server-side code needed verification. The only area of mild uncertainty is whether the timefree30 feature (which requires radiko premium login on the website) could be considered a paid feature of the extension—but since it requires radiko.jp's own premium subscription and the extension merely passes through the existing session cookie, it is properly classified as a destination_service feature, not an extension paid feature.

Monetization

No paid features detected

The extension itself is completely free and open-source (GitHub: github.com/jackyzy823/rajiko). There is no payment UI, no subscription mechanism, no Stripe or other payment platform integration, and no features gated behind payment. The 'premium' references in the code (modules/auth.js line 8: 'Auth token generated with premium radiko_session cookie can access the tf30 resource') refer to radiko.jp's own premium subscription plan for timefree30 content—a destination service feature, not an extension feature. The Ko-fi link in the popup (pages/popup.html line 70) is a voluntary donation link for the developer, not a payment requirement for extension features. The 'subscribe' and 'premium plan' keywords detected in the heuristic are from the store description mentioning Ko-fi sponsorship and radiko's premium plan, neither of which constitute paid features within the extension itself.

Confidence: 95
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension's core functionality—bypassing radiko.jp geolocation restrictions to listen to live radio and download basic timeshift content—requires NO login. The extension programmatically generates random device info and auth tokens via radiko's Android auth API (auth1/auth2) without any user account (modules/auth.js lines 35-60). All 'auth' and 'token' references in the code are about radiko's API authentication flow, not user login. There is no login form, no account creation, and no sign-in UI in the extension. The only login-related mention is an optional case: to download 'timefree30' content (a radiko premium-only feature), the user must be logged into their own radiko.jp account via the website—but this is logging into the destination service, not the extension itself, and it is optional for a specific advanced feature.

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、cookies、storage、webRequest、downloads、scripting

Publisher

jackyzy823

Independent publisher

Email: [email protected]
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