
Greasemonkey
Tampermonkey
Greasy Fork
Userscripts
Database Script Tool
Script Manager – SManager
FireMonkey
Violentmonkey is a userscript manager to support running userscripts in web pages.

Omni Calculator
calculator.net
Build vs. Buy Calculator
DeveloperToolStack
DevNestTools
DevTools Advanced
DevTools.fit
Free, no-signup calculators for the money side of building software and freelancing

Which is more popular?
Based on our record, Violentmonkey seems to be more popular. It has been mentioned 46 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | violentmonkey.github.io | devfinancetools.com |
| Pricing | ||
| Company | — | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Violentmonkey yet.
DevFinanceTools is a collection of free, no-signup calculators for the money side of building software and freelancing. Everything runs in your browser — no account, no tracking beyond basic page-view analytics — and every tool shows its formulas and benchmarks so you can check the maths...
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
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No analysis of DevFinanceTools yet.
Walkthroughs and reviews on video.
暴力猴 Violentmonkey chrome 神器扩展插件 看VIP电影 下载视频一应俱全
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Violentmonkey and DevFinanceTools. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


- 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
Since Tampermonkey seems to be misbehaving, consider using Violentmonkey. Source: almost 3 years ago
Step 1Install violentmonkey (or your favorite user script manager). Source: about 3 years ago
Tracking DevFinanceTools since Aug 2026.
When comparing Violentmonkey and DevFinanceTools, you can also consider the following products.

Customize the way a web page displays or behaves, by using small bits of JavaScript.
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Helping you make rational decisions, one calculation at a time.
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Greasemonkey compatible script manager.
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Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
Compare calculator.net to Violentmonkey or DevFinanceTools:

Should you build an internal tool? Or just buy it?
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