About EpitomeTool

EpitomeTool is a free collection of 59 small utility tools — generators, converters, encoders, formatters — across 12 categories. Everything runs in your browser. No server processes your input, no account is required, no analytics follow you around.

What "client-side" means here

Every tool is shipped as a tiny JavaScript bundle. When you paste a string, drop a file, or tap "Generate", the computation happens on your device. Nothing is uploaded. You can verify this by opening your browser's network tab while using any tool — you'll see zero requests carrying your input.

Principles

• Privacy by construction. Sensitive operations (password generation, hashing, UUIDs) use the browser's Web Crypto API for cryptographically strong randomness.
• No dark patterns. No paywalls disguised as "upgrade", no newsletter prompts, no cookie banners we don't legally need.
• Fast and small. Pages are pre-rendered HTML; the interactive bits hydrate only when visible.
• Open behaviour. Each tool ships with a guide and FAQ describing exactly what it does and the standards or algorithms it follows.

Who builds it

EpitomeTool is built and maintained by an independent developer who relies on these utilities daily. Every tool is hand-rolled against published standards (RFC 4122 for UUIDs, WCAG 2.1 for contrast, ISO 8601 for dates, the JSON Schema spec for validation, and so on) so the output you get matches what any conformant implementation would produce. If a tool ever returns the wrong result, that's a bug — please report it on the contact page.

Contact

Bug reports, feature requests, or feedback — see the contact page.