Mockaroo
Random Data Monster
Universal Data Generator
Dummy File Generator
DUMMY DATABASE
RANDOM.ORG
Wheel of Names
Data generator that can create a table filled with pseudo-random content.

fx
jq
VisiData
DSQ
Jsonnet
JSON Crack
yq
jello is a command line tool that filters JSON data using pure python syntax.

Which is more popular?
Based on our record, jello seems to be more popular. It has been mentioned 20 times since March 2021.
Website, pricing, platforms and company facts side by side.
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Data Creator
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| Website | ecleti.com | github.com |
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What each product offers, as listed by its team.

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Koolaid Gels Jello Review
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Share your experience with using Data Creator and jello. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Tracking Data Creator since Mar 2021.
Jello let’s you use python syntax with dot notation without the stdin/stdout/json.loads boilerplate. https://github.com/kellyjonbrazil/jello. - Source: Hacker News / about 3 years ago
A couple more alternatives: https://github.com/kellyjonbrazil/jello. - Source: Hacker News / about 3 years ago
Yep, you can create a filter in jq to do that. Alternatively, if you prefer Python syntax you could try jello, which works like jq but is really Python under the hood. (I am also the author of jello). Source: over 3 years ago
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jq is like sed for JSON data - you can use it to slice and filter and map and transform structured...
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Generate realistic Salesforce test data with proper relationships and record types in minutes! Direct upload to sandboxes—no CSV wrangling, no production data risks.
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Interactive multi-tool for tabular data in the console
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