About aresangel Tools
A small independent set of browser utilities, built and maintained by one person who got tired of tool pages that bury the input box under three ad blocks and a newsletter modal.
What this site is
Free text, developer and security tools. No account, no upload, no quota. Each page does exactly one job and the input field is the first thing on the page.
How it is built
Static HTML, one stylesheet and a few dozen lines of JavaScript per tool. There is no backend to leak your input because there is no backend handling it at all - the pages are served as plain files and the utilities execute in your browser.
Corrections and requests
If a tool produces a wrong result, the most useful thing you can send is the exact input and the output you expected. Tool requests are read, and ones with a clear repeated use case get built.
Independence
This site is not affiliated with any of the platforms whose formats it works with. Base64, JSON, RFC 4122 and the SHA family are open standards.
It does take part in the Amazon Associates Program: a few product boxes on calculator pages link to Amazon with our tag aresangel-20, and we may earn a commission on those purchases at no extra cost to you. Details are on the affiliate disclosure page.
Frequently asked questions
Is aresangel Tools really free?
Yes. Every tool and calculator is free, with no account, no quota and no paid tier.
Do my inputs get uploaded to a server?
No. The calculators run entirely in your browser and nothing you type in them is uploaded. The only thing ever sent is an email address you type yourself, and only when you ask us to send the checklist.
Do I need to sign up or log in?
No. Open a tool and start typing - there is no sign-up or login. Where a page offers to email your results, that box is optional and never blocks the tool.
Can I use the calculators for client work?
Yes. The seller calculators are free to use for any project, including work you do for clients.
How do I report a bug or request a tool?
Send the exact input and the output you expected. Tool requests are read, and ones with a clear repeated use case get built.