HNH Lab – Free Online Utility Tools
Word counters, password generators, JSON formatters, Base64 encoders, and more — no sign-up, no tracking, works in your browser.
Explore All ToolsHNH Lab offers a growing collection of free online tools built for developers, writers, and everyday tasks. Every tool runs directly in your browser — nothing is uploaded or stored on any server.
The toolbox includes word and character counters, JSON formatters and validators, Base64 and URL encoders, hash generators (SHA-256, MD5), Unix timestamp converters, random password generators, lorem ipsum generators, and more.
No account. No ads in the way. No installation. Just open a tool and use it.
Browse Tools by Category
Encoding, hashing, formatting, and conversion tools for developers.
View all Developer Tools →Generate passwords, usernames, placeholder text, and more.
View all Generator Tools →Handy everyday utilities — date calculators, colour converters, and more.
Popular Tools
Word Counter Tool
Count words, characters, sentences, and paragraphs in your text instantly.
Character Counter Tool
Count characters with and without spaces, great for social media limits.
Lorem Ipsum Generator
Generate placeholder lorem ipsum text by paragraphs, sentences, or words.
Random Password Generator
Generate strong, secure random passwords with customisable options.
Random Username Generator
Create unique, creative usernames with adjective-noun combinations.
SHA-256 Generator
Generate a SHA-256 hash from any string using the Web Crypto API.
MD5 Generator
Generate an MD5 hash from any input string, implemented in pure JavaScript.
Timestamp Converter Tool
Convert Unix timestamps to human-readable dates and vice versa.
Why Use HNH Lab Tools?
Free to Use
Every tool on HNH Lab is completely free, with no paywalls, no premium tiers, and no trial limits.
No Login Required
Open any tool and start using it immediately. No account, no email, no form to fill in.
Fast & Browser-Based
Tools run entirely in your browser using JavaScript. Results appear instantly with no server round-trips.
Privacy-Friendly
Your text, data, and inputs never leave your device. Nothing is sent to or stored on any server.
Works on Any Device
Fully responsive — use HNH Lab tools on desktop, tablet, or mobile without any loss of functionality.
Growing Toolbox
New tools are added regularly. If you need a specific utility, suggest it and we will consider adding it.