Software Alternatives, Accelerators & Startups

Violentmonkey VS JackHamr

Compare Violentmonkey VS JackHamr and see what are their differences

Violentmonkey logo Violentmonkey

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

JackHamr logo JackHamr

AI agents that spec, build, test, and ship code โ€” with voice chat, deep GitHub integration, and zero LLM markup.
Visit Website
  • Violentmonkey Landing page
    Landing page //
    2023-10-16
  • JackHamr Agents
    Agents //
    2026-06-23
  • JackHamr Agent Workspace
    Agent Workspace //
    2026-06-23
  • JackHamr Board - Kanban view
    Board - Kanban view //
    2026-06-23
  • JackHamr Agent Creation
    Agent Creation //
    2026-06-23
  • JackHamr SSH Connection
    SSH Connection //
    2026-06-23
  • JackHamr Editor - VS Code
    Editor - VS Code //
    2026-06-23

JackHamr is the AI coding agent that ships software end-to-end. Instead of a single assistant that tries to do everything, it runs a team of specialist agents โ€” one writes the spec, another plans the implementation, others build, test, review, and ship the code. Each agent has its own role, tools, and personality.

Agents run on hosted cloud dev environments with VS Code, Docker, SSH access, and WireGuard-encrypted networking. Close your laptop and they keep working. Talk to them with push-to-talk voice chat or type naturally. GitHub is built in โ€” one-click clone, automatic branch-per-task, real-time commit sync, and PR creation.

Bring your own LLM keys (OpenAI, Anthropic, Google, or self-hosted) or use ours at cost โ€” swap models mid-pipeline to use the best model for each task. Build custom orchestration pipelines and agent skills. Share agents across your organization.

Pay-as-you-go with fully itemized billing โ€” infrastructure at cost, LLM tokens with zero markup. $10 free credit to start, no card required.

JackHamr

$ Details
freemium
Release Date
2026 January
Startup details
Country
Canada
City
Vancouver
Founder(s)
Ali
Employees
1 - 9

Violentmonkey features and specs

  • 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 of Violentmonkey

  • 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.

JackHamr features and specs

  • AI-Powered Music Creation
    JackHamr leverages artificial intelligence to assist users in creating music, making the composition process more accessible and efficient for both beginners and experienced musicians.
  • Streamlined Workflow
    The platform aims to simplify the music production workflow by integrating AI tools that can help with various aspects of music creation, from melody generation to arrangement suggestions.
  • Accessibility for Non-Musicians
    By using AI assistance, JackHamr can lower the barrier to entry for people who want to create music but may lack formal training or extensive knowledge of music theory.
  • Creative Inspiration Tool
    JackHamr can serve as a powerful brainstorming and inspiration tool, helping artists overcome creative blocks by generating ideas and musical elements they might not have considered.
  • Emerging Technology Platform
    As an AI music platform, JackHamr is positioned in a growing and innovative space, potentially offering cutting-edge features as AI music technology continues to advance rapidly.

Analysis of Violentmonkey

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.

Analysis of JackHamr

Overall verdict

  • JackHamr appears to be a niche AI-powered tool, but without verified, widespread user reviews or established track record, it's difficult to confirm it as a definitively 'good' product. Prospective users should conduct their own due diligence before committing.

Why this product is good

  • May offer AI-driven automation or content generation capabilities depending on its specific focus
  • Could provide a modern, tech-forward solution for specific workflow needs
  • Potentially competitive pricing compared to established alternatives
  • May cater to a specific niche market underserved by larger platforms

Recommended for

  • Early adopters willing to try newer AI tools
  • Users seeking niche or specialized AI solutions
  • Businesses looking for alternative options to mainstream AI platforms
  • Those who prioritize testing new tools over relying solely on established brands

Violentmonkey videos

ๆšดๅŠ›็Œด Violentmonkey chrome ็ฅžๅ™จๆ‰ฉๅฑ•ๆ’ไปถ ็œ‹VIP็”ตๅฝฑ ไธ‹่ฝฝ่ง†้ข‘ไธ€ๅบ”ไฟฑๅ…จ

JackHamr videos

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

Add video

Category Popularity

0-100% (relative to Violentmonkey and JackHamr)
Browser Extensions
100 100%
0% 0
AI Tools
0 0%
100% 100
Dark Mode
100 100%
0% 0
Developer Tools
84 84%
16% 16

User comments

Share your experience with using Violentmonkey and JackHamr. For example, how are they different and which one is better?
Log in or Post with

Social recommendations and mentions

Based on our record, Violentmonkey seems to be more popular. It has been mentiond 46 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Violentmonkey mentions (46)

  • 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 / almost 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: over 2 years ago
  • Current plan for the flag
    Step 1Install violentmonkey (or your favorite user script manager). Source: almost 3 years ago
  • Andrej Karpathy โ€“ State of GPT ( At MSBuild 2023)
    Sounds like a good violent monkey [0] script for you do this weekend. :) [0] https://violentmonkey.github.io/. - Source: Hacker News / about 3 years ago
  • Auto expand for reports button in modqueue
    Toolbox is great, but if that is all you really need, here's this! You can copy and paste this as a new script to use in ViolentMonkey [AMO] or whatever script manager you use. Source: about 3 years ago
View more

JackHamr mentions (0)

We have not tracked any mentions of JackHamr yet. Tracking of JackHamr recommendations started around Jun 2026.

What are some alternatives?

When comparing Violentmonkey and JackHamr, you can also consider the following products

Greasemonkey - Customize the way a web page displays or behaves, by using small bits of JavaScript.

GummySearch - Audience research for Reddit

Tampermonkey - Greasemonkey compatible script manager.

Brand24 - Brand24 is an AI-powered media monitoring tool that analyzes mentions and presents actionable insights.This tool is designed to keep track of online conversations about your brand, products, and competitors.

Greasy Fork - A site for user scripts.

F5Bot - F5Bot will send you an email whenever your brand, product, or keyword is mentioned online.