About Toolerax

What is Toolerax?

Toolerax is a growing collection of 100+ free online tools — text utilities, developer helpers, calculators, converters, image tools, PDF tools, SEO utilities and more. Every tool is designed to solve one everyday problem quickly: paste or drop your input, get your result, done. There are no accounts to create, no software to install and no artificial limits.

Privacy first: your files stay on your device

Almost every tool on Toolerax runs entirely in your web browser. When you compress an image, merge PDFs or format JSON, the processing happens on your own computer using modern browser technology — your files and text are never uploaded to our servers. That makes the tools faster, keeps your data private and means they even keep working on a slow connection once the page has loaded. Tools that work this way are marked with a “browser-side” badge. You can read more in our Privacy Policy.

Our mission

Simple online tasks shouldn’t require registering an account, paying a subscription or handing your files to an unknown server. Our mission is to build the most useful everyday toolbox on the web and keep it free for everyone, supported by non-intrusive advertising rather than paywalls.

What you’ll find here

• Text Tools — Free online text tools to count, convert, clean, sort and transform text instantly — right in your browser.
• Developer Tools — Free online developer tools — format JSON, encode Base64, decode JWTs, generate UUIDs and more, all client-side.
• SEO Tools — Free online SEO and webmaster tools — build a robots.txt, generate an XML sitemap, preview your Google and social snippets, and check keyword density, all in your browser.
• Security Tools — Free online security tools to generate strong passwords and MD5/SHA hashes securely in your browser.
• Converters — Free online converters for units, data formats and more — fast and browser-based.
• Calculators — Free online calculators for everyday math, finance, health and dates.
• Image Tools — Free online image tools to compress, resize, crop and convert images in your browser.
• PDF Tools — Free online PDF tools to merge, split, compress and convert PDF files.

We also publish practical guides on the Toolerax blog — short, hands-on articles that explain the concepts behind the tools, from character encodings to compound interest.

Who builds Toolerax?

Toolerax is built and maintained by a small independent team of software engineers with a background in building production business software. Every tool is hand-built, tested against known reference values before release, and improved continuously based on user feedback. New tools ship regularly — if something looks off or you’re missing a tool, we genuinely want to hear about it.

Get in touch

Found a bug, have an idea for a new tool, or just want to say hello? Head over to the contact page — we read everything.