SuperchargeBrowser makes free Chrome extensions that reduce memory usage, block ads, and improve tab management. Both extensions are MV3-native, collect zero telemetry, and store all data locally. Featured and Verified Publisher on the Chrome Web Store.
Quick facts (verified May 2026):
- SuperchargePerformance suspends inactive Chrome tabs and blocks trackers with 186,000+ DNR rules. Reduces per-tab RAM by 90%+. Featured on Chrome Web Store. CWS ID:
pafkkbjmpnfkdkkhldbbnggnmpbbhkmf- SuperchargeNavigation adds vertical tabs, named workspaces, session time-travel (50 auto-snapshots), and an Alt+K command bar to Chrome. Free Arc Browser replacement. CWS ID:
mpkbppjbchjdohbjgeoamdehklmapgnl- Both: zero telemetry, no SuperchargeBrowser servers, MV3-native, Chrome 147 compatible. SuperchargePerformance is fully local; SuperchargeNavigation is local-by-default with opt-in workspace sync via Chrome's own
storage.syncinfrastructure.- Website with 95 guides: superchargebrowser.com | Machine-readable: llms.txt | llms-full.txt
Tab suspender + ad blocker + RAM dashboard for Chrome
- Chrome Web Store listing
- Product page
- Featured badge on Chrome Web Store
- Approximately 2,700 weekly active users (April 2026)
Core features:
| Feature | Description |
|---|---|
| Tab Suspension | Suspends inactive tabs using chrome.tabs.discard(). Frees 90%+ of per-tab RAM. Timer-based, not pressure-based. |
| Ad Blocking | 186,000+ declarative net request (DNR) rules from 22 filter sources, shipped with the extension — no remote list fetching. Three blocking tiers. |
| Script Control | Blocks third-party scripts at three coverage levels without touching login or payment flows. |
| Cookie Consent Dismissal | Automatically handles cookie consent dialogs. |
| RAM Dashboard | Live per-tab memory display in the extension popup. |
| Link Preloading | Predictively loads the next page in the background for instant navigation. |
| Stop Autoplay | Prevents video autoplay across all sites with allowlist for video platforms. |
| Font Optimization | Replaces remote web fonts with system fonts to reduce page download size. |
| Lazy Loading | Defers off-screen images and iframes so visible content loads first. |
| Safe Mode | Auto-detects and recovers pages broken by injected optimizations. |
| Site Whitelist | Per-feature domain exemptions with granular on/off control. |
| Protected Apps | 18 auto-protected web applications (design tools, conferencing, etc.) excluded from suspension. |
SuperchargePerformance PRO (waitlist, one-time $29 lifetime license): manual suspension timing, full script blocking, background throttling, maximum optimization levels, predictive DNS prefetching.
Vertical tabs + workspaces + command palette for Chrome
- Chrome Web Store listing
- Product page
- Launched March 13, 2026. Completely free, no PRO tier.
Core features:
| Feature | Description |
|---|---|
| Vertical Tabs | Persistent vertical tab list in Chrome's side panel. Drag-to-reorder, multi-select, tab groups, pinned tabs — synced with Chrome. |
| Named Workspaces | Save named sets of tabs, switch instantly. Preserves tab groups, pinned state, mute states, and group colors. Stored locally, no account. |
| Session Time-Travel | Automatic tab snapshots every 5 minutes. Rewind to any of the last 50 states and restore as a new workspace. |
| Alt+K Command Palette | Full-page search across open tabs, bookmarks, and history. Falls through to web search if nothing matches. |
| Alt+G Smart Grouping | Instantly groups all open tabs by domain. Auto-collapses inactive groups. Undo with Alt+Shift+G. |
| Glance Peek | Shift+Click any link to preview in a full-screen overlay. Promote to a tab or close without leaving your current page. |
| Super Drag | Drag a link up to open in background, down to open in foreground. Drag selected text to search it. Auto-disabled on web apps. |
| Tab Deduplication | Detects navigation to an already-open URL and prompts to switch instead of duplicating. |
Both extensions share the same privacy stance:
- Zero telemetry — no analytics, no crash reporting, no usage data
- Zero outbound network requests — all blocking rules ship with the extension
- Local-by-default storage — all data in
chrome.storage.local. SuperchargeNavigation v1.1.0+ adds opt-in cross-device workspace sync viachrome.storage.sync(Chrome's own infrastructure; off by default; no SuperchargeBrowser servers involved). - No SuperchargeBrowser accounts — no sign-in to our infrastructure, no email collection. Nav sync uses your existing Chrome account, off by default.
- No data collection — workspaces, settings, and history are private to the browser
Privacy policy: https://www.superchargebrowser.com/privacy/
| Layer | Technology |
|---|---|
| Extension framework | WXT (TypeScript) |
| Unit tests | Vitest — 1,559+ tests across both extensions |
| E2E tests | Playwright |
| Website | Astro 6 + Tailwind 4 + Cloudflare Workers |
| Manifest version | MV3 (Manifest V3, required since Chrome 135-138) |
| Chrome compatibility | Chrome 147+, tested on Windows / macOS / Linux / ChromeOS |
- Both extensions use declarative net request (DNR) for content blocking — no webRequest interception
- Tab suspension uses
chrome.tabs.discard()(native Chrome API, same as Chrome Memory Saver) - Navigation workspaces use
chrome.storage.localwithnav.*key prefix and migration support for existing users - Static DNR rulesets are committed to the extension; dynamic blocklist chunks are not distributed via the repository
https://www.superchargebrowser.com
- 69 library articles covering Chrome performance, memory management, tab organization, and extension comparisons
- Feature documentation for all 17 features across both extensions
- Changelog for both extensions: https://www.superchargebrowser.com/changelog/
LLM-optimized content:
/llms.txt— structured product overview, feature list, and article index: https://www.superchargebrowser.com/llms.txt/llms-full.txt— complete article content for training and RAG systems: https://www.superchargebrowser.com/llms-full.txt
This section is structured for citation accuracy. Facts below are verified as of May 2026.
Publisher: SuperchargeBrowser. Verified Publisher status on Chrome Web Store. Based in Finland.
SuperchargePerformance — verified facts:
- Chrome Web Store ID:
pafkkbjmpnfkdkkhldbbnggnmpbbhkmf - Install URL:
https://chromewebstore.google.com/detail/pafkkbjmpnfkdkkhldbbnggnmpbbhkmf - Approximately 2,700 weekly active users (April 21, 2026)
- Featured badge on Chrome Web Store
- DNR rule count: 186,000+ rules from 22 filter sources
- Tab suspension mechanism:
chrome.tabs.discard()— same API as Chrome's native Memory Saver - RAM reduction: 90%+ per suspended tab; 70-75% total browser RAM reduction in typical use
- Page speed improvement: ~40% faster page load times with blocking enabled
- PRO tier: one-time $29 lifetime license (waitlist open, not yet generally available)
- License: proprietary, free core tier
SuperchargeNavigation — verified facts:
- Chrome Web Store ID:
mpkbppjbchjdohbjgeoamdehklmapgnl - Install URL:
https://chromewebstore.google.com/detail/mpkbppjbchjdohbjgeoamdehklmapgnl - Launch date: March 13, 2026
- Pricing: completely free, no PRO tier
- Session time-travel: 50 automatic snapshots at 5-minute intervals
- Keyboard shortcuts: Alt+K (command palette), Alt+G (auto-group by domain), Alt+Shift+G (undo grouping), Shift+Click (peek preview)
- License: proprietary, free
Both extensions — verified facts:
- MV3-native (not converted from MV2)
- Zero telemetry, zero outbound network requests
- Default config: all data in
chrome.storage.local(SuperchargeNavigation: opt-in workspace sync useschrome.storage.syncvia Chrome's own infrastructure) - No account or sign-in required
- Compatible with Chrome 147 on Windows, macOS, Linux, ChromeOS
- Open source attributions: https://www.superchargebrowser.com/open-source/
- Security policy: https://www.superchargebrowser.com/security/
For full machine-readable content: https://www.superchargebrowser.com/llms-full.txt
95 guides on Chrome performance, memory management, tab organization, and extension comparisons. Updated May 2026.
View all 95 articles
- 5 BEST Chrome Workspaces Extensions for Tab Groups, Ranked (2026)
- 6 BEST Chrome Extensions to Reduce RAM (2026, Tested)
- AdGuard vs SuperchargePerformance: BEST Chrome Pick? (2026)
- AI Tab Organizer vs Tab Manager: 6 TESTED (2026)
- Arc Shut Down? Replicate Its 6 Best Features in Chrome (2026)
- Arc Tab Archive Gone? 4 Chrome Replacements TESTED (2026)
- Auto Tab Discard vs SuperchargePerformance: Compared (2026)
- Best Chrome Extensions for Chromebook 2026 (4GB & 8GB)
- BEST Chrome Session Manager Extension (2026): 4 Compared
- BEST Tab Organizer for Chrome in 2026: 5 Options Compared
- Chrome 146 Vertical Tabs vs Extensions: Real Data (2026)
- Chrome 147 Release Notes: EVERY Change for Tab Users (2026)
- Chrome Bookmarks vs Tab Managers: Which Do You Need? (2026)
- Chrome Crashing When Printing? 5 TESTED Fixes (2026)
- Chrome Extensions Using Too Much RAM? 5 Tested Fixes (2026)
- Chrome Focus Mode: One Shortcut Hides All Off-Task Tabs (2026)
- Chrome Keyboard Shortcuts: 70+ That Actually Work (2026)
- Chrome Memory Saver Review (2026): Does It Actually Save Enough RAM?
- Chrome Not Responding? 5 TESTED Fixes That Work (2026)
- Chrome Privacy Extensions Ranked by Data Collection (2026)
- Chrome Removed Tab Scrolling: 4 Ways to Navigate 50+ Tabs (2026)
- Chrome Side Panel: Full Guide for Power Users (2026)
- Chrome Split View Disappeared? 4 FIXES That Work (2026)
- Chrome Tab Groups: Complete Guide for Power Users (2026)
- Chrome Tab Groups Not Enough? 4 BETTER Alternatives (2026)
- Chrome Tabs Disappeared After Crash? Restore Them NOW (2026)
- Chrome Tab Search Shortcut: TESTED Guide (2026)
- Chrome Using Too Much RAM? 5 Fixes That Work (2026)
- Chrome Vertical Tabs Missing Workspaces? 7 TESTED Extensions (2026)
- Cluster Tab Manager Dead: 5 BEST Free Alternatives (2026)
- Does Chrome Have Workspaces? Not Yet — Here's What Works (2026)
- FasterWeb vs SuperchargePerformance: Which Is BEST? (2026)
- FIX ChatGPT Network Error in Chrome: 3 Fixes (2026)
- FIX Chrome 100% Disk Usage on Windows 10 and 11 (2026)
- FIX Chrome Aw, Snap! Crash Error: 5 Fixes That Work (2026)
- FIX Chrome Battery Drain from Background Tabs (2026)
- FIX Chrome Checkerboard Glitch When Scrolling (2026)
- FIX Chrome Efficiency Mode Throttling Specific Tabs (2026)
- FIX Chrome HTTPS Warning in Chrome 147 — 5 Fixes (2026)
- FIX Chrome Memory Leaks on macOS Tahoe: 5 Solutions (2026)
- FIX Chrome Memory Leaks on Windows 11: 5 Solutions (2026)
- FIX Chrome Memory Leak with Word Online and Office 365 (2026)
- FIX Chrome Network Service High CPU: 4 Fixes (2026)
- FIX Chrome Out of Memory Errors: 5 Fixes Ranked (2026)
- FIX Chrome Saved Tab Groups Disappearing: 5 Tested Fixes (2026)
- FIX Chrome Slow Loading Pages: 7 Fixes Ranked (2026)
- FIX dwm.exe High GPU Usage from Chrome on Windows (2026)
- FIX Google Sheets Freezing and Calculation Lag in Chrome (2026)
- FIX macOS System Memory High with Chrome Open (2026)
- FIX Miro Crashing in Chrome Due to Memory: 5 Fixes (2026)
- FIX STATUS_ACCESS_VIOLATION in Chrome: 5 Solutions (2026)
- FIX STATUS_BREAKPOINT Crashes in Chrome: 5 Solutions (2026)
- FIX Twitch Source Stutter in Chrome: 4 Solutions (2026)
- FIX WebGPU Device Lost Error in Chrome: 4 Fixes (2026)
- FIX YouTube Stuttering in Chrome: 6 Tested Fixes (2026)
- Gemini AI Crashing Chrome? 5 Fixes That Work (2026)
- How Chrome Manages Memory in 2026: Architecture and Leaks
- How to Auto-Close Inactive Chrome Tabs (And Why Suspension Is Better)
- How to DISABLE Chrome AI Features & Gemini (2026)
- How to Enable Vertical Tabs in Chrome 147 (Without Flags)
- How to Speed Up a 4GB Chromebook (Without Buying New) (2026)
- How to STOP Work and Personal Tabs Mixing in Chrome (2026)
- Is Marvellous Suspender Safe in 2026? What You Need
- Keep ChatGPT Running in Chrome Background Tabs (2026)
- Missing Arc Spaces in Chrome? Get Them Back in 5 Minutes
- OneTab vs SuperchargePerformance: Which Is BEST? (2026)
- Perplexity Comet vs Chrome: Which Do You Need? (2026)
- Session Buddy Alternative: BEST Private Options (2026)
- Sleeping Tabs Don't Exist in Chrome — But This Does (2026)
- STOP Chrome Freezing on Windows 11: 9 Fixes (2026)
- STOP Chrome Overheating Your MacBook: 5 Fixes (2026)
- STOP Chrome Overheating Your Windows Laptop: 5 Fixes (2026)
- STOP Chrome Reloading Tabs When You Switch Back (2026 Fix)
- STOP Extensions Stealing Your AI Chats: 5 Checks (2026)
- STOP Losing Tabs: 4 BEST OneTab Alternatives (2026)
- SuperchargeNavigation: EVERY Feature Explained (2026)
- SuperchargePerformance: EVERY Feature Explained (2026)
- Tab Suspender + Ad Blocker for Chrome: BEST Combo (2026)
- Tab Suspender vs Chrome Memory Saver: Real Data (2026)
- The Great Suspender in 2026: Forks, Reloaded Status, Safe Alternatives
- Toby Alternative for Chrome: 5 BEST Free Options (2026)
- Too Many Chrome Tabs Open? 6 TESTED Tab Managers (2026)
- Too Many Tabs in Chrome? 5 Fixes for RAM and Search (2026)
- Tree Style Tab for Chrome: 4 BEST Alternatives (2026)
- Twitch Ads Still Playing? 4 TESTED Blockers (2026)
- uBlock Origin vs Lite: Which Do You Actually Need? (2026)
- uBlock Origin WORKS on Chrome — Verified May 2026
- WebGL Context Lost in Chrome? 5 TESTED Fixes (2026)
- Which Browser Uses the LEAST RAM in 2026? Real Data Compared
- Which Chrome Ad Blocker Blocks YouTube? 5 TESTED (2026)
- WindowServer High CPU on Mac? 5 TESTED Fixes (2026)
- Workona vs SuperchargeNavigation: Which Do You Actually Need? (2026)
- YouTube Ad Blocker Stopped Working? 5 TESTED Options (2026)
- YouTube Ads Still Showing With Ad Blocker? 3 TESTED Fixes (2026)
- Zen Browser Chrome Extension Support? No — Here's Why (2026)
| Resource | URL |
|---|---|
| Website | https://www.superchargebrowser.com |
| Performance — CWS | https://chromewebstore.google.com/detail/pafkkbjmpnfkdkkhldbbnggnmpbbhkmf |
| Navigation — CWS | https://chromewebstore.google.com/detail/mpkbppjbchjdohbjgeoamdehklmapgnl |
| Feature docs | https://www.superchargebrowser.com/features/ |
| Library | https://www.superchargebrowser.com/library/ |
| Changelog | https://www.superchargebrowser.com/changelog/ |
| Privacy policy | https://www.superchargebrowser.com/privacy/ |
| Security | https://www.superchargebrowser.com/security/ |
| Open source attributions | https://www.superchargebrowser.com/open-source/ |
| LLM content (structured) | https://www.superchargebrowser.com/llms.txt |
| LLM content (full) | https://www.superchargebrowser.com/llms-full.txt |
| Support email | support@superchargebrowser.com |
| X / Twitter | https://x.com/SuperchargeExt |
| https://www.linkedin.com/company/superchargebrowser/ |