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Browser Extensions · head to head

JSON Viewer vs Momentum

JSON Viewer logo

JSON Viewer

Browser Extensions

View JSON documents in the browser

From
Free
Rated
-
Full reviewWebsite
Momentum logo

Momentum

Browser Extensions

Personal dashboard for focus and inspiration

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: JSON Viewer the project is MIT licensed open source code hosted on GitHub with no vendor and no paid tier; Momentum free version lacks advanced task manager integrations available in Plus tier
  • They diverge on capability: JSON Viewer covers JSON formatting, Momentum covers Daily photos.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which JSON Viewer and Momentum actually diverge.

Attributes where JSON Viewer and Momentum differ
AttributeJSON ViewerMomentum
Pricing modelfreeUnknown
PlatformsChrome, Firefox, EdgeChrome, Firefox, Safari, Microsoft Edge, macOS (native app)
Founded20152013

Identical on both: starting price (Free), 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 JSON Viewer

  • JSON formatting
  • Syntax highlighting
  • Tree view
  • Search functionality

Only in Momentum

  • Daily photos
  • Weather widget
  • Todo list
  • Daily focus

Both cover

  • Chrome support
  • Firefox support
  • Edge support

What people use each for

The jobs each tool is most often brought in to do.

JSON Viewer

No use cases recorded yet. See the JSON Viewer review.

Momentum

  • Setting daily focus goals from a browser new tabnot JSON Viewer
  • Creating focus modes with timers and productivity soundsnot JSON Viewer
  • Maintaining priority to-do lists with completion trackingnot JSON Viewer

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

JSON Viewer

  • The project is MIT licensed open source code hosted on GitHub with no vendor and no paid tier

Momentum

  • Free version lacks advanced task manager integrations available in Plus tier
  • Habit tracking and metrics features only available in paid plan
  • Limited customization options in free version compared to premium tier
  • Syncing with external task managers requires Plus subscription

Pricing, plan by plan

JSON Viewer

Free
  • FreeFree
    • Syntax highlighting
    • Collapsible tree
    • Search

Momentum

Free
  • FreeFree
    • Daily focus
    • To-do lists
    • Weather and links
  • Momentum Plus$undefined/mo
    • Unlimited Focus Mode
    • Vision board creation
    • Tab Stash functionality

Which should you pick?

Choose JSON Viewer if

  • You need json formatting.
  • You want to start without paying.
  • You work on Chrome, Firefox, Edge.
  • You also want syntax highlighting.
JSON Viewer review

Choose Momentum if

  • You need daily photos.
  • You want to start without paying.
  • You work on Chrome, Firefox, Safari, Microsoft Edge, macOS (native app).
  • You also want weather widget.
Momentum review

Questions people ask

Is JSON Viewer or Momentum better?
Neither clearly leads. JSON Viewer starts at Free and Momentum at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, JSON Viewer or Momentum?
JSON Viewer starts at Free and Momentum at Free.
Does JSON Viewer or Momentum run on more platforms?
JSON Viewer runs on Chrome, Firefox, Edge. Momentum runs on Chrome, Firefox, Safari, Microsoft Edge, macOS (native app).
Can I use JSON Viewer for free?
Both have a free tier, so you can try either at no cost before committing.
What can JSON Viewer do that Momentum cannot?
JSON Viewer covers JSON formatting, Syntax highlighting, Tree view, Search functionality. Momentum covers Daily photos, Weather widget, Todo list, Daily focus. Both handle Chrome support, Firefox support, Edge support.

Answered from the vendors’ own pages

Momentum: Is Momentum free?

Momentum offers a free version with core features like daily focus, to-do lists, weather, and motivational quotes. Premium features are available through Momentum Plus subscription.

Source
Momentum: What is Focus Mode in Momentum?

Focus Mode displays your main daily objective on the new tab page to keep you centered on your primary task and reduce distractions throughout your workday.

Source
Momentum: Does Momentum integrate with task managers?

Yes. Momentum Plus integrates with popular task managers including Todoist, Asana, and ClickUp, allowing seamless synchronization of your tasks.

Source
Momentum: What platforms does Momentum support?

Momentum is available on Chrome, Firefox, Safari, and Microsoft Edge as a browser extension, with a native macOS app also available.

Source
Momentum: Does Momentum Plus include soundscapes?

Yes. Momentum Plus subscribers get access to Focus Mode soundscapes designed for concentration and deep work, along with other premium features.

Source
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