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500+ free online calculators and tools for finance, health, math, conversions, and more.

With Cozystack, you can transform your bunch of servers into an intelligent system with a simple REST API for spawning Kubernetes clusters, Database-as-a-Service, virtual machines, load balancers, HTTP caching services, and other services with ease.

Website, pricing, platforms and company facts side by side.
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| Website | alltools.dev | cozystack.io |
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| Company | Startup from Bulgaria · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


AllTools.dev is a modern, fast, free online toolkit built for people who need quick, accurate calculators and converters without signing up, creating an account, or wading through cluttered interfaces. The platform offers 500+ tools across finance (mortgage calculators, loan amortization,...
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1000+ free tools on Ease Tools including calculators, converters, generators and utilities with no signup, no ads and instant access.
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