Browser Extensions · head to head
Dark Reader vs Postmark
Postmark
Marketing
No hidden fees, no guesswork. Just the features you need, at a price that makes sense
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Dark Reader cannot modify PDF files displayed in browsers; Postmark free tier caps at 100 emails per month with no overages allowed
Where they differ
Only the attributes on which Dark Reader and Postmark actually diverge.
| Attribute | Dark Reader | Postmark |
|---|---|---|
| Pricing model | Unknown | freemium |
| Platforms | Chrome, Firefox, Safari, Edge | Web |
| Category | Browser Extensions | Marketing |
| Founded | 2014 | Unknown |
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).
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
- Chrome support
- Firefox support
- Edge support
- Safari support
Only in Postmark
Nothing recorded that Dark Reader does not also cover.
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 Postmark
- Reducing eye strain for night-time or extended browsingnot Postmark
- Per-site brightness, contrast, and sepia customizationnot Postmark
- Toggling dark mode on/off per domainnot Postmark
- Accessibility use for light-sensitive usersnot Postmark
Postmark
No use cases recorded yet. See the Postmark review.
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
Postmark
- Free tier caps at 100 emails per month with no overages allowed
- Basic plan ($15/mo) includes 10,000 emails then charges $1.80 per 1,000 extra; Pro and Platform tiers have their own lower per-1,000 overage rates ($1.30 and $1.20), so cost scales per email beyond the included volume
- Custom high-volume pricing above the published tiers requires contacting sales
Pricing, plan by plan
Dark Reader
FreeNo published plan breakdown. See the Dark Reader review.
Postmark
FreeNo published plan breakdown. See the Postmark review.
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.
Questions people ask
- Is Dark Reader or Postmark better?
- Neither clearly leads. Dark Reader starts at Free and Postmark at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Dark Reader or Postmark?
- Dark Reader starts at Free and Postmark at Free.
- Does Dark Reader or Postmark run on more platforms?
- Dark Reader runs on Chrome, Firefox, Safari, Edge. Postmark runs on Web.
- 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 Postmark is typically brought in for.
- What can Dark Reader do that Postmark cannot?
- Dark Reader covers Dark mode, Custom brightness, Contrast adjustment, Site-specific settings.
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.
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.
SourceDark Reader: What browsers does Dark Reader support?
Dark Reader is available for Chrome, Firefox, Safari, and Edge browsers across desktop and mobile platforms.
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.
SourceRelated pages
More on Dark Reader
Other head to heads
- Dark Reader vs Pocket
- Dark Reader vs Raindrop.io
- Dark Reader vs Privacy Badger
- Dark Reader vs AdBlock Plus
- Dark Reader vs Evernote Web Clipper
- Dark Reader vs Instapaper
- Dark Reader vs Awesome Screenshot
- Dark Reader vs BuiltWith
- Dark Reader vs Capital One Shopping
- Dark Reader vs Ghostery
- Dark Reader vs Honey
- Dark Reader vs LanguageTool
- Dark Reader vs Mercury Reader
- Dark Reader vs ProWritingAid
- Dark Reader vs Rakuten
- Dark Reader vs SimilarWeb
- Dark Reader vs uBlock Origin
- Dark Reader vs Hemingway Editor
- Dark Reader vs Wrike
- Dark Reader vs Buffer
- Dark Reader vs Hootsuite
- Dark Reader vs Moz
- Dark Reader vs Ahrefs
- Dark Reader vs Customer.io
- Dark Reader vs Instapage
- Dark Reader vs Iterable
- Dark Reader vs Leadpages
- Dark Reader vs Mailgun
- Dark Reader vs MoEngage
- Dark Reader vs Typeform
- Dark Reader vs Unbounce
- Dark Reader vs Vimeo
- Postmark vs Pocket
- Postmark vs Raindrop.io
- Postmark vs Privacy Badger
- Postmark vs AdBlock Plus
- Postmark vs Evernote Web Clipper
- Postmark vs Instapaper
- Postmark vs Awesome Screenshot
- Postmark vs BuiltWith
- Postmark vs Capital One Shopping
- Postmark vs Ghostery
- Postmark vs Honey
- Postmark vs LanguageTool
- Postmark vs Mercury Reader
- Postmark vs ProWritingAid
- Postmark vs Rakuten
- Postmark vs SimilarWeb
- Postmark vs uBlock Origin
- Postmark vs Hemingway Editor
- Postmark vs Wrike
- Postmark vs Buffer
- Postmark vs Hootsuite
- Postmark vs Moz
- Postmark vs Ahrefs
- Postmark vs Customer.io
- Postmark vs Instapage
- Postmark vs Iterable
- Postmark vs Leadpages
- Postmark vs Mailgun
- Postmark vs MoEngage
- Postmark vs Typeform
- Postmark vs Unbounce
- Postmark vs Vimeo