ESSE.TOOLS

High Quality Online Tools for Developers, Designers, Product Owners, Quality Engineers and Entire Digital Workforce

For routine tasks use our tools to save time on what is important.

argon2.online logo Argon2 Hash Generator

Easily generate argon2 (argon2i, argon2d, argon2id) hashes with all available parameters & options. Verify existing hashes with plain texts and find important resources about this winner algorithm.

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contrastchecker.online logo WCAG Color Contrast Checker

Use this tool to calculate contrast ratio of two given colors and check for Web Content Accessibility Guidelines. Learn about color theory and find related handpicked blog posts and resources.

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slugify.online logo URL Slug Generator

Simple but smart tool to generate SEO friendly and human readable URL slugs for your next blog post or web page. Check examples and learn more about URLs from trusted sources.

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bcrypt.online logo Bcrypt Hash Generator

Bcrypt hash generator and verifier. Create secure bcrypt hashes by inputting text, selecting parameters like cost factor, and verifying against plain text. Explore related security resources.

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crc32.online logo CRC32 Checksum Calculator

Instantly calculate CRC 32 checksums, find specifications and resources.

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Our Mission

Build Free, High Quality, Basic Online Tools for Digital Workforce.

Fast

We are building tools performance in our minds. Even with slow connection you will get what you need.

Secure

We believe that privacy is a right. We never use your data in a way other than described in our Privacy Policy.

Accessible

By constantly checking our websites against web content accessibility guidelines, we ensure maximum quality.