
Faker
Mockaroo
Mimesis
ShadowTraffic
Tonic AI
Eventum is an open-source developer tool for generating realistic test data: logs, metrics, security events and transactions.

Nim (programming language)
D (Programming Language)
Go Programming Language
C++
Crystal (programming language)
Zig
Perl
Simple, fast, safe, compiled language for developing maintainable software.

Which is more popular?
Based on our record, V (programming language) seems to be more popular. It has been mentioned 79 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | eventum.run | vlang.io |
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| Platforms | — | |
| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Describe events, schedule them, and stream to ClickHouse, OpenSearch, Kafka, files or any HTTP endpoint. Eventum is used for testing pipelines and detection rules, live demos, seeding databases and load testing. Highlights: - Pipeline of three swappable stages: when events happen, what they...
No description of V (programming language) yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
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V Programming Language (Vlang): First Impression - Mike Shah
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Eventum.run and V (programming language).
Eventum.run's answer
Python (FastAPI, Pydantic, Jinja2) for the engine, CLI and REST API; React + TypeScript for the Eventum Studio web UI. Ships as a pip package and Docker image.
Eventum.run's answer
Libraries like Faker give you fake values - Eventum gives you the whole pipeline: scheduling, templating, state, and parallel delivery to ClickHouse, OpenSearch, Kafka, files or any HTTP endpoint. And it ships with Eventum Studio, a web UI where you preview and debug events before anything goes live.
Eventum.run's answer
Most data generators produce random values at a flat rate. Eventum also models behavior: traffic follows cron schedules, intervals or statistical time patterns with peaks, bursts and quiet periods, and templates persist state between events - three scopes of state plus a finite state machine mode for multi-step scenarios like user sessions.
Eventum.run's answer
Data engineers, SIEM and detection engineers, and developers who need realistic data for testing pipelines, live demos, seeding databases or load testing - teams that would otherwise write throwaway generator scripts.
Eventum.run's answer
The author works on a data analytics platform similar to Splunk, where every customer demo needs a believable case running on data that looks alive. The team generated demo data with Splunk Eventgen, but the workflow never felt convenient, so around 2023 he started building his own generator. It grew into Eventum, now used by his SIEM team and data engineers daily.
Eventum.run's answer
Internal SIEM and data engineering teams at the author's Cyber Security company
Share your experience with using Eventum.run and V (programming language). For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking Eventum.run since Jun 2026.
This seems to be the language's main page https://vlang.io/. - Source: Hacker News / 28 days ago
How about v-lang? https://vlang.io/ Not python, but, go-like syntax, and satisfies other stuff you mentioned. - Source: Hacker News / 6 months ago
Somewhat similar language, https://vlang.io It’s a mix of go and rust syntax that translates to C. - Source: Hacker News / 6 months ago
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Faker is a PHP library that generates fake data for you
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The Nim programming language is a concise, fast programming language that compiles to C, C++ and JavaScript.
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A realistic data generator to test your app
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D is a language with C-like syntax and static typing.
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Application and Data, Data Stores, and Database Tools
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Go, also called golang, is a programming language initially developed at Google in 2007 by Robert...
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