DarkShield
Fast dark mode for every site — works on Shopify, Gmail, and SPAs.
Standalone $2.99/mo or $29.90/yr.
Why it matters
What DarkShield does that nothing else does
- Benefit 1:
CSS-filter approach — five times faster than DOM-rewriting alternatives.
- Benefit 2:
Unlimited free sites; competitors cap free tiers at five sites.
- Benefit 3:
Per-site toggle and whitelist — keep native dark themes where you prefer them.
- Benefit 4:
Works on SPA-heavy sites: Gmail, Shopify, Notion, Linear, Discord.
Pricing
Buy DarkShield alone, or get the bundle
Use only this extension? Buy it standalone. Use three or more Aegis extensions? The Pro Pack pays for itself.
Standalone
DarkShield Pro
$2.99/mo
Or $29.90/yr — save when paid annually.
Pro tier on DarkShield only. Cancel anytime.
Get DarkShield ProBest value
Save $21/yrAegis Pro Pack
$9.99/mo
Or $99/yr — covers every Aegis extension you install.
Unlocks Pro on DarkShield and every other Aegis extension. New extensions included automatically.
Get the Pro PackBuilt the Aegis way
Privacy you can verify, not just claim
On-device by default
Every Aegis extension runs in your browser. No silent cloud upload, no server-side processing of your activity.
Never sold, never bundled
Aegis extensions never change ownership. Updates come from the same publisher you trusted at install.
No account required
Install and use immediately. Pro features unlock with a single sign-in to your Aegis Pro Pack.
MV3-native
Built for Chrome Manifest V3 from day one — no deprecation warnings, no broken background pages.
Why switch
DarkShield vs Dark Reader
Dark Reader rewrites every DOM node and noticeably lags on Shopify and Gmail. DarkShield uses a CSS filter approach that runs five times faster on the same pages.
| Feature | DarkShield | Dark Reader |
|---|---|---|
| Monthly price | $2.99/mo | Free (with the trade-offs above) |
| Account required | No — install and use immediately | Often yes (varies by competitor) |
| Data leaves the browser | No — on-device by default | See competitor privacy policy |
| Ownership transfer risk | Aegis never sells extensions | Varies — see ExtensionWatch in this catalog |
| Bundled with Aegis Pro Pack | Yes — $9.99/mo unlocks every extension | No bundle |
See it in action
DarkShield screenshots
More screenshots and the full feature walkthrough live on the DarkShield landing page.
Common questions
- Why is DarkShield faster than Dark Reader?
- Dark Reader walks every DOM node and recomputes styles. DarkShield applies a single CSS filter at the document level. The filter approach skips per-node work, which is why pages like Gmail and Shopify feel instant where Dark Reader stutters.
- Does DarkShield collect any data?
- No. Settings, the whitelist, and the schedule live in chrome.storage on your device. The content script makes no network requests and page content is never read or transmitted.
- Can I exclude a site that already has its own dark mode?
- Yes. The popup has a per-site toggle and a whitelist. Toggle off on Twitter / Slack / GitHub if you prefer their native dark themes; DarkShield handles the rest.
- How does the Aegis Pro Pack unlock DarkShield?
- Sign in to aegisfirma.com from any installed Aegis extension popup. The cookie-auth flow detects your active Pro Pack and unlocks Pro features instantly — no license key to copy or paste.
- Where is my DarkShield data stored?
- DarkShield stores everything in chrome.storage on your device. Your subscription record lives in our payment provider's account; we do not aggregate browsing or activity data.
- Can I cancel DarkShield Pro anytime?
- Yes — billing stops at the end of the current period. Pro features remain active until the period ends, then drop back to the free tier.
- Why should I trust an extension I just heard of?
- Aegis extensions never change ownership and never sell user data. We publish security audit results and ship MV3-native code so Chrome itself enforces the permissions we claim.
Try DarkShield free, upgrade when ready
Free tier covers the basics. Pro Pack at $9.99/mo unlocks every Aegis extension at once.