Browser Extensions · head to head
Dark Reader vs Keeper
Keeper
Browser Extensions
Protect your passwords and private information
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Dark Reader cannot modify PDF files displayed in browsers; Keeper free tier is severely limited to 10 passwords on a single device; essentially a trial rather than a usable free version
- They diverge on capability: Dark Reader covers Dark mode, Keeper covers Password management.
Where they differ
Only the attributes on which Dark Reader and Keeper actually diverge.
| Attribute | Dark Reader | Keeper |
|---|---|---|
| Platforms | Chrome, Firefox, Safari, Edge | Chrome, Firefox, Edge, Safari, Brave, Opera, iOS, Android, macOS, Windows |
| Founded | 2014 | 2011 |
Identical on both: starting price (Free), pricing model (Unknown), free tier (Yes), user rating (Not yet rated), category (Browser Extensions).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Dark Reader
- Dark mode
- Custom brightness
- Contrast adjustment
- Site-specific settings
Only in Keeper
- Password management
- Zero-knowledge encryption
- Secure file storage
- BreachWatch
- Opera support
Both cover
- Chrome support
- Firefox support
- Edge support
- Safari support
What people use each for
The jobs each tool is most often brought in to do.
Dark Reader
- Applying dark mode to websites that don't natively support itnot Keeper
- Reducing eye strain for night-time or extended browsingnot Keeper
- Per-site brightness, contrast, and sepia customizationnot Keeper
- Toggling dark mode on/off per domainnot Keeper
- Accessibility use for light-sensitive usersnot Keeper
Keeper
- Business and enterprise password management with zero-knowledge encryptionnot Dark Reader
- Privileged access management for admin and service accountsnot Dark Reader
- Secure remote access and privileged session recordingnot Dark Reader
- Application secrets management through Secrets Managernot Dark Reader
- Government deployments requiring FedRAMP Highnot Dark Reader
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Dark Reader
- Cannot modify PDF files displayed in browsers
- Performance impact on devices with limited resources
Keeper
- Free tier is severely limited to 10 passwords on a single device; essentially a trial rather than a usable free version
- Personal plan at $1.79/month is promotional pricing; regular price is higher, making budget comparison difficult
Pricing, plan by plan
Dark Reader
FreeNo published plan breakdown. See the Dark Reader review.
Keeper
Free- FreeFree
- 10 passwords max
- Single device only
- No sync
- Personal$1.79/month
- Unlimited passwords
- All devices
- 2FA support
- Family$3.83/month
- Up to 5 users
- Unlimited storage
- Shared vaults
Which should you pick?
Choose Dark Reader if
- You need dark mode.
- You want to start without paying.
- You work on Chrome, Firefox, Safari, Edge.
- You also want custom brightness.
Choose Keeper if
- You need password management.
- You want to start without paying.
- You work on Chrome, Firefox, Edge, Safari, Brave, Opera, iOS, Android, macOS, Windows.
- You also want zero-knowledge encryption.
Questions people ask
- Is Dark Reader or Keeper better?
- Neither clearly leads. Dark Reader starts at Free and Keeper at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Dark Reader or Keeper?
- Dark Reader starts at Free and Keeper at Free.
- Does Dark Reader or Keeper run on more platforms?
- Dark Reader runs on Chrome, Firefox, Safari, Edge. Keeper runs on Chrome, Firefox, Edge, Safari, Brave, Opera, iOS, Android, macOS, Windows.
- Can I use Dark Reader for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Dark Reader best used for?
- Dark Reader is most often used for applying dark mode to websites that don't natively support it, reducing eye strain for night-time or extended browsing, per-site brightness, contrast, and sepia customization, toggling dark mode on/off per domain. Of those, applying dark mode to websites that don't natively support it and reducing eye strain for night-time or extended browsing are not what Keeper is typically brought in for.
- What can Dark Reader do that Keeper cannot?
- Dark Reader covers Dark mode, Custom brightness, Contrast adjustment, Site-specific settings. Keeper covers Password management, Zero-knowledge encryption, Secure file storage, BreachWatch. Both handle Chrome support, Firefox support, Edge support, Safari support.
Answered from the vendors’ own pages
Dark Reader: Is Dark Reader free to use?
Yes, Dark Reader is completely free with no ads and no tracking. It does not send user data anywhere.
SourceKeeper: Is there a free version of Keeper?
Keeper offers a free version with very limited functionality: it stores only 10 passwords on a single mobile device with no cross-device sync. A 30-day free trial provides full access to all features.
SourceDark Reader: How can I customize the dark mode in Dark Reader?
Users can configure brightness, contrast, and sepia filter settings to suit their specific needs, and selectively enable or disable Dark Reader for specific websites.
SourceKeeper: What are Keeper's paid pricing plans?
Keeper Personal starts at $1.79/month (promotional pricing) with annual billing. Keeper Family covers up to 5 users at $3.83/month annually. Both include unlimited password storage, cross-device sync, and 2FA support.
SourceDark Reader: What browsers does Dark Reader support?
Dark Reader is available for Chrome, Firefox, Safari, and Edge browsers across desktop and mobile platforms.
SourceKeeper: What browsers and devices does Keeper support?
Keeper has browser extensions for Chrome, Firefox, Edge, Safari, Brave, and Opera. It also offers native apps for iOS, Android, macOS, Windows, and web access.
SourceDark Reader: Does Dark Reader work offline?
Yes, Dark Reader runs entirely on your device with no external dependencies. It analyzes web pages locally to generate dark themes.
SourceKeeper: Does Keeper support 2FA and passkeys?
Yes, Keeper stores and autofills FIDO2 passkeys and supports multiple 2FA methods including TOTP, SMS, and WebAuthn. Biometric login (fingerprint/face recognition) is also supported.
SourceKeeper: How secure is Keeper?
Keeper uses zero-knowledge architecture where data is encrypted and decrypted only on your device. Only you can access your vault, and the company cannot see your passwords or data.
Source