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Browser Extensions · head to head

JSON Viewer vs Screencastify

JSON Viewer logo

JSON Viewer

Browser Extensions

View JSON documents in the browser

From
Free
Rated
-
Full reviewWebsite
Screencastify logo

Screencastify

LMS

Simple video creation for everyone

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; Screencastify limited to Chrome browser only, cannot record on Firefox, Safari, or Edge
  • They diverge on capability: JSON Viewer covers JSON formatting, Screencastify covers Screen recording.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where JSON Viewer and Screencastify differ
AttributeJSON ViewerScreencastify
Pricing modelfreefreemium
PlatformsChrome, Firefox, EdgeChrome Browser
CategoryBrowser ExtensionsLMS
Founded20152013

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 JSON Viewer

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

Only in Screencastify

  • Screen recording
  • Video editing
  • Drawing tools
  • Google Drive export

Both cover

  • Chrome 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.

Screencastify

  • Recording lessons for flipped classroom instruction without external toolsnot JSON Viewer
  • Creating product demos and explainer videos for sales teamsnot JSON Viewer
  • Documenting technical processes for customer support tutorialsnot JSON Viewer
  • Collecting and grading video assignments from students with rubricsnot JSON Viewer
  • Adding interactive assessments to video content to measure understandingnot 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

Screencastify

  • Limited to Chrome browser only, cannot record on Firefox, Safari, or Edge
  • Free version watermark appears on all videos and requires upgrade to remove
  • Free tier limited to 10 videos total before requiring paid plan
  • Maximum 1080p resolution at 30fps, no support for higher framerates or 4K
  • No free educator license for educational institutions

Pricing, plan by plan

JSON Viewer

Free
  • FreeFree
    • Syntax highlighting
    • Collapsible tree
    • Search

Screencastify

Free
  • FreeFree
    • Up to 10 videos
    • 30-minute recording limit
    • Browser tab, full screen, and webcam recording
  • Starter$7/month
    • Unlimited videos
    • 60-minute recording limit
    • Basic editing
  • Pro$10/month
    • Unlimited videos
    • 180-minute recording limit
    • AI video enhancements
  • Enterprise & EDU$null/month
    • Custom pricing
    • Central admin controls
    • LMS integrations

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 Screencastify if

  • You need screen recording.
  • You want to start without paying.
  • You work on Chrome Browser.
  • You also want video editing.
Screencastify review

Questions people ask

Is JSON Viewer or Screencastify better?
Neither clearly leads. JSON Viewer starts at Free and Screencastify at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, JSON Viewer or Screencastify?
JSON Viewer starts at Free and Screencastify at Free.
Does JSON Viewer or Screencastify run on more platforms?
JSON Viewer runs on Chrome, Firefox, Edge. Screencastify runs on Chrome Browser.
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 Screencastify cannot?
JSON Viewer covers JSON formatting, Syntax highlighting, Tree view, Search functionality. Screencastify covers Screen recording, Video editing, Drawing tools, Google Drive export. Both handle Chrome support, Edge support.

Answered from the vendors’ own pages

Screencastify: What's the free tier limit?

Free plan allows 10 total videos up to 30 minutes each, with watermark. After 10 videos, you must upgrade.

Source
Screencastify: Is Screencastify limited to Chrome?

Yes. Screencastify is exclusively a Chrome extension and does not work on other browsers like Firefox, Safari, or Edge.

Source
Screencastify: What's the maximum video quality?

Maximum resolution is 1080p at 30 frames per second. Videos can only be exported to MP4, audio to MP3, or as GIF.

Source
Screencastify: Does Screencastify work for educational use?

Screencastify lacks a free educator license for schools or non-profits, unlike some competitors who offer discounted or free plans for educational institutions.

Source
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