
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

The Security Checklist
Marshal
Messiah
Google Capture the Flag 2017
Revoke.cash
Web3Antivirus.io
Security Planner
A browser extension to verify the authenticity of websites

Which is more popular?
Based on our record, Signed Pages seems to be more popular. It has been mentioned 13 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | devfinancetools.com | github.com |
| Pricing | — | |
| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


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...
No description of Signed Pages yet.
What each product offers, as listed by its team.


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


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


Tracking DevFinanceTools since Aug 2026.
There are some efforts to use extensions to allow signing/verification of web assets (assuming you trust the extension/browser), some via third parties: https://github.com/tasn/webext-signed-pages https://github.com/jahed/webverify... - Source: Hacker News / over 1 year ago
There is "Signed Pages" by the debeloper of EteSync. It is a browser extension, that checks webapps based on signatures in the html file. The addon then warns the user if the signature is not correct or - if I remember correctly - the... - Source: Hacker News / over 2 years ago
EteSync has implemented something called Signed Pages, this might be worth looking closer at. This uses PGP keys which is preloaded into the browser; but I suspect that will be a barrier too high for most non-tech users. Source: over 3 years ago
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Should you build an internal tool? Or just buy it?
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Protect your Web3 assets before you sign. Messiah scans sites, intercepts wallet signing requests, and checks addresses — detecting phishing and drainers in real time.
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