$ s-hub --list-extensions
Browser extensions
that do one thing well.
Lightweight Chrome/Edge extensions focused on privacy and utility.
No bloat, no tracking, no accounts required.
// extensions
Shorts Killer
Block YouTube Shorts with page-specific controls, statistics tracking, and keyboard shortcuts.
X Detox
Clean up your X/Twitter experience by removing ads and unwanted noise.
PromptStash
Save prompts with variable templates, slash commands, and instant insertion. Works with 19+ AI services.
Rakuten Sellers Analytics
楽天市場セラー向けの本格的な分析ツール。キーワード調査、競合分析、利益計算機能を搭載。
Japanese Font Finder
Webページ上のフォント情報を瞬時に検出。游ゴシック、ヒラギノなど日本語フォントに完全対応。
DataPick
Extract data from any website with just a few clicks. Export to CSV, Excel, or Google Sheets.
物件スカウター（購入版）
SUUMOの購入物件で坪単価・㎡単価を自動計算。築年数ハイライト、お気に入り比較、価格履歴で賢い物件探し。
Yahoo快適モード
Yahoo!ニュースの低品質記事を自動フィルタリング。こたつ記事や炎上記事を非表示にして、快適な閲覧体験を。
ReadMark
Automatically saves your reading position on any webpage. Never lose your place in long articles again.
TVer Plus
TVerの視聴体験を向上。2倍速以上の再生、ピクチャインピクチャ、便利なキーボードショートカットに対応。
ZenRead
Distraction-free reader mode for any webpage. Remove ads and sidebars, customize themes and fonts for comfortable reading.
HeaderSmith
Add, edit & remove HTTP request and response headers per URL pattern. Authorization, Content-Type, CORS headers. declarativeNetRequest. Free: create 5 rules + unlimited ModHeader import. Pro: unlimited.
Request Monitor
Monitor XHR/fetch requests for the current tab. Method/status color coding, duration, size, URL filter, type filter. 1s live polling.
Storage Inspector
Browse, edit, delete localStorage/sessionStorage/cookies without DevTools. JSON pretty-print, inline editing, search filter.
Viewport Inspector
Real-time viewport width badge in the toolbar. Color matches active Tailwind breakpoint. Width, height, DPR, scroll, document size.
CSS Inspector
Click any element to inspect computed CSS. Layout, Typography, Colors, Spacing tabs. CSS variable vs actual value toggle.
MarkdownLive
Real-time Markdown editor in a side panel. Split view: editor + live HTML preview. Copy HTML, save .md, export standalone HTML. Auto-saves locally.
SpeedDialX
Custom new tab speed dial grid. Pin favorite sites, drag to rearrange, Google search bar. Free: 12 sites. Pro: unlimited + image background.
Tab Manager
All tabs in one list. Search, switch, close. Detects duplicate URLs and removes them in one click.
ReadingMode
Transform any article into a clean reading view. Dark/Light/Sepia themes. Font size, line height, column width controls.
PageMemo
URL-linked notes that auto-appear when you revisit pages. Rich text editor with categories and full-text search.
ReShapic
Resize, convert, and optimize images for any platform. Batch processing, 8 languages, and freemium Pro plan.
DataBridge
Transfer data between web pages with visual element mapping. Match elements by number and transfer with one click.
OnPageX
Analyze SEO meta tags, headings, schemas, images, and links with one click. Score your on-page SEO instantly.
Procshot
Auto-record browser actions to create step-by-step guides with screenshots. Export as Markdown or HTML (PDF with Pro).
SnapReply for Gmail
Reply templates for Gmail. Insert one with a click or a /keyword; variables and conditional blocks with Pro.
SNSCrossPost
Post to X, Threads, Bluesky, and LinkedIn simultaneously. One-click multi-platform publishing.
CookieJar
View, edit, create, delete, export and import cookies. Privacy-first cookie editor with smart auto-categorization.
PagePilot
Convert web pages to clean, LLM-optimized Markdown with token counting. Works with ChatGPT, Claude, and Gemini.
EntryCheck
Visa requirements, entry rules, and travel advisories for 190+ countries — right in your browser. Filter by passport nationality.
InboxSLA
Color-coded SLA badges in Gmail and deadline alerts before client reply windows expire. Set custom SLA hours per client domain.
MeetingLink
Auto-detect Zoom, Google Meet & Teams links on any page. Find and save meeting links, join in one click.
FocusPlaylist
Play YouTube playlists as background music while you work. One click to start Lo-Fi, White Noise, or Deep Focus.
LinkPreview
Hover over any link to preview the page title, description, and image — without opening it.
DownloadMap
Scan any page for downloadable files — PDFs, ZIPs, videos, docs & more. One-click or bulk download.
EmojiPicker
Search and copy any emoji instantly. Press Alt+Shift+E, type to search, click to copy. Recent history included.
BookmarkHub
Browse bookmarks as visual cards with favicons. Real-time search, folder tabs, one-click open. Free: 50, Pro: unlimited.
SiteMapper
Fetch and visualize any site's sitemap.xml. Browse URLs, view last-modified and priority, copy all in one click.
PasswordStrength
Real-time inline password strength meter on any login form. Scores length, variety, and flags common passwords. No popup needed.
// no extensions in this category
// google workspace add-on
Google フォーム · 日本語Google フォームに組み込んで使うアドオン。
// web apps
PWA · 日本語拡張機能と同じ S-Hub が作る Web アプリ。インストール不要、ブラウザで使えます。
readbox
Read it later · PWAPocket からの移行先。日本語ファーストの「あとで読む」PWA。CSV インポート対応、記事の本文は端末側に保存。
サブスクノート
Subscription manager · PWA家族や自分のサブスクをメンバー枠で管理。解約方法を決済手段別に案内。更新日の通知付き。
StackPulse
Email API comparison · ENTransactional email API comparison · always-current free-tier radar. SendGrid alternatives plus Resend / Postmark / Mailgun / SES pricing & limits, kept current.
Best Free Chrome Extensions for Developers (2026)
S-Hub offers 20+ free Chrome extensions for web developers, designers, and power users — built for privacy, with no accounts required.
// font & design tools
- Japanese Font Finder — Identifies 150+ Japanese fonts (Yu Gothic, Hiragino, Noto Sans JP) with full CSS details. Best Chrome extension for CJK web typography inspection.
// productivity & data tools
- DataPick — Extracts structured data from any webpage to CSV, JSON, or Google Sheets with point-and-click — no code required.
- Procshot — Auto-records browser actions and generates step-by-step guides with annotated screenshots. Export as PDF or Markdown.
- PromptStash — Saves and organizes AI prompts. One-click insertion into ChatGPT, Claude, Gemini, and any LLM interface.
- ReadMark — Saves your scroll position on every webpage automatically. Return to exactly where you left off in any article.
- CookieJar — Cookie manager with import/export for developers. Useful for testing multi-session flows and debugging cookie-based auth.
// digital wellbeing
- Shorts Killer — Completely removes YouTube Shorts from your feed, search, and sidebar. Rated 5.0 by 10+ users.
- X Detox — Removes algorithmic content from X (Twitter) — trending topics, recommended posts, and ads — leaving only your timeline.
- FocusGuard — Schedule-based site blocker with PIN protection. Blocks distracting sites during work hours automatically.
// popular comparisons
view all → DataPick vs Instant Data Scraper
side-by-side comparison
Procshot vs Scribe
side-by-side comparison
Shorts Killer vs Unhook
side-by-side comparison
SnapReply vs Gmail Templates
side-by-side comparison
CookieJar vs EditThisCookie
side-by-side comparison
PromptStash vs PromptBox
side-by-side comparison
// about
Indie developer based in Japan. Building browser extensions that respect your time and data.
No analytics, no telemetry, no accounts.