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Eventum.run VS Violentmonkey

Compare Eventum.run VS Violentmonkey and see what are their differences

Eventum.run

Eventum is an open-source developer tool for generating realistic test data: logs, metrics, security events and transactions.

Rating
0 reviews
Pricing
Open source Free
Alternatives Is it good?
Violentmonkey

Violentmonkey is a userscript manager to support running userscripts in web pages.

Rating
0 reviews
Pricing
Open source
Alternatives Is it good?
Thalam
OpenAI-compatible API gateway for GPT, Claude, Gemini, DeepSeek, Qwen, Kling and more. One key, one endpoint, one bill. Pay per token, no lock-in. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Violentmonkey seems to be more popular. It has been mentioned 46 times since March 2021.

social mentions
0 vs 46
Synthetic Data popularity
100% vs 0%
alternatives listed
5 vs 30

Base details

Website, pricing, platforms and company facts side by side.

Eventum.run
Violentmonkey
Website eventum.run violentmonkey.github.io
Pricing
Open source Free
Open source
Platforms
Linux
—
Company 2026 —
Listed in
Synthetic Data Fake Data Generator Test Data Generator Data Pipelines MCP Servers Web App +3
Browser Extensions Dark Mode Tool Developer Tools +1

About Eventum.run and Violentmonkey

In their own words, as submitted to SaaSHub.

Eventum.run
Violentmonkey

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...

Read more about Eventum.run

No description of Violentmonkey yet.

Features and specs

What each product offers, as listed by its team.

Eventum.run 6 features
Violentmonkey 5 features
  • Flexible Scheduling
    Scheduling from cron and fixed intervals to statistical time patterns. Eventum has many ways to define schedule.
  • State Management
    Eventum has three scopes of state in event template, so you can build different complex dependencies between rendered events.
  • Multiple Destination Streaming
    Eventum supports parallel fan-out of events: stdout, files, ClickHouse, OpenSearch, Kafka and any HTTP endpoint
  • Live Mode
    Eventum can work in two modes: Live mode (events fire at their timestamps) or sample mode (everything at once)
  • Web Interface
    Eventum Studio is the web UI included in application mode: edit generator configurations and templates, preview rendered events, and monitor running generators.
  • MCP integration
    Connect an AI agent to Eventum built-in Model Context Protocol server and let an AI agent author, validate, preview, and run generators.
  • Free and Open Source
    Violentmonkey is freely available to use and the source code is open for anyone to inspect, modify, and contribute to. This ensures transparency and community-driven development.
  • Active Development
    The project is actively maintained and updated, which means that bugs are fixed promptly and new features are regularly added.
  • Cross-Browser Support
    Violentmonkey is compatible with multiple browsers including Chrome, Firefox, Microsoft Edge, and Opera, providing flexibility to users regardless of their browser preference.
  • User Script Manager
    It allows users to manage and run custom scripts to enhance web pages, providing extensive customization options for a tailored browsing experience.
  • Easy Backup and Sync
    Features like backup and sync allow users to easily transfer their settings and scripts across different devices, ensuring a consistent experience.

Possible disadvantages

  • Learning Curve
    For new users, especially those not familiar with scripting, there might be a learning curve involved in understanding how to write and manage scripts effectively.
  • Security Risks
    As with any tool that runs third-party scripts, there is a potential risk for malicious scripts that can compromise user security and privacy if not properly vetted.
  • Dependency on Community Scripts
    The quality and functionality of Violentmonkey heavily rely on the availability and maintenance of user-submitted scripts, which can vary in quality.
  • Browser Performance Impact
    Running multiple or poorly optimized scripts can affect browser performance by increasing loading times and resource consumption.

Analysis

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

Eventum.run
Violentmonkey

Overall verdict

  • I don't have verified, up-to-date information about Eventum.run specifically, so I can't confirm its quality, features, or reliability. I'd recommend checking recent user reviews, testing any free trial, and verifying company legitimacy before committing.

Why this product is good

  • Insufficient verified data available on this specific platform to confirm its features or performance
  • Unable to confirm user satisfaction, pricing fairness, or customer support quality without direct sources
  • Cannot verify security, uptime, or business legitimacy claims without independent research

Recommended for

  • Users willing to do their own due diligence by checking recent reviews on sites like Trustpilot or G2
  • Those who can test a free trial or demo before making a purchase decision
  • Individuals comfortable verifying a company's legitimacy through business registries or online presence

Overall verdict

  • Yes, Violentmonkey is a reliable and efficient userscript manager that caters to the needs of users who want to customize their web browsing experience.

Why this product is good

  • Violentmonkey is considered a good choice for users looking to manage userscripts on their web browsers. It provides a clean and straightforward interface, supports a wide range of script sources, and is compatible with multiple browsers including Chrome, Firefox, and Edge. Moreover, it is open-source, allowing for community contributions and transparency.

Recommended for

  • Tech-savvy users interested in enhancing their web browser functionality through userscripts.
  • Developers who want to test userscripts in a flexible environment.
  • Users looking for an open-source alternative to other popular script managers like Greasemonkey or Tampermonkey.

Videos

Walkthroughs and reviews on video.

Eventum.run 0 videos + Add
Violentmonkey 1 video + Add

No Eventum.run videos yet. You could help us improve this page by suggesting one.

暴力猴 Violentmonkey chrome 神器扩展插件 看VIP电影 下载视频一应俱全

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Eventum.run
Violentmonkey
100% 100%
Synthetic Data
0% 0%
0% 0%
Browser Extensions
100% 100%
100% 100%
Web App
0% 0%
0% 0%
Dark Mode
100% 100%

Questions & Answers

As answered by people managing Eventum.run and Violentmonkey.

Which are the primary technologies used for building your product?

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.

Why should a person choose your product over its competitors?

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.

What makes your product unique?

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.

How would you describe the primary audience of your product?

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.

What's the story behind your product?

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.

Who are some of the biggest customers of your product?

Eventum.run's answer

Internal SIEM and data engineering teams at the author's Cyber Security company

User comments

Share your experience with using Eventum.run and Violentmonkey. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Eventum.run 0 mentions
Violentmonkey 46 mentions

Tracking Eventum.run since Jun 2026.

  • Show HN: UserScript to manually choose model for ChatGPT website
    - GPT 4o mini, so you can save your 4o calls for more complex queries https://github.com/altbdoor/userscripts/raw/master/force-gpt3.user.js. - Source: Hacker News / about 2 years ago
  • If your Firefox suddenly started to hang or become extremely slow today, check if you have tampermonkey 5.0. Disable it for now as it seems to be the culprit.
    Since Tampermonkey seems to be misbehaving, consider using Violentmonkey. Source: almost 3 years ago
  • Current plan for the flag
    Step 1Install violentmonkey (or your favorite user script manager). Source: about 3 years ago

View more

Alternatives to Eventum.run and Violentmonkey

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