
Mockaroo
JSON Generator
MockTurtle.net
ExtendsClass's JSON generator allows to generate random JSON data from a template.

PixScript
Descript
Auto Subtitle Generator
EasySub
GeekLink.dev
Kapwing
Otter.ai
Captioner is an AI subtitle generator and editor for your videos. Add accurate subtitles to your videos and save hours of work. Upload your videos and edit right on your browser.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | extendsclass.com | captioner.io |
| Pricing | ||
| Platforms | — | |
| Company | 2019 | Startup from Singapore · 1 - 9 employees · 2024 |
| Listed in |
In their own words, as submitted to SaaSHub.


This free online tool allows to generate JSON dataset. You can generate multiple JSON files exported to a zip archive. No limits. No registration.
Add Accurate Subtitles to your Videos Add accurate subtitles to your videos and save hours of work. Upload your videos and edit right on your browser. Translate your subtitle into another language with a single click. Get subtitle file for your YouTube video or download the video with subtitles...
What each product offers, as listed by its team.


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No analysis of ExtendsClass JSON Generator yet.
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Share your experience with using ExtendsClass JSON Generator and Captioner.io. For example, how are they different and which one is better?
When comparing ExtendsClass JSON Generator and Captioner.io, you can also consider the following products.
A realistic data generator to test your app
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Paste a YouTube, TikTok, or Instagram URL and get the full transcript with timestamps. Export as SRT subtitles, plain text, or PDF. AI summaries, rewriting, and 50+ language translation built in. Free to start.
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Create mock and sample JSON using a powerful template syntax
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Text-based audio editor and automated transcription
Compare Descript to ExtendsClass JSON Generator or Captioner.io:

Generate realistic random JSON data through a simple and intuitive GUI.
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Generate, edit, style, and export accurate video subtitles with no watermark—even on the free plan.
Compare Auto Subtitle Generator to ExtendsClass JSON Generator or Captioner.io: