About ToolBench

What ToolBench is

Every day, people need tiny jobs done: a password that is not their dog's name, a photo small enough to email, a lump of JSON made readable, a piece of text counted or converted. The tools for these jobs are usually buried inside heavyweight software, or offered on websites that want your email address, your files, and a few minutes of your patience before they hand anything back.

ToolBench is the opposite of that. Each tool does exactly one job, does it on the spot, and explains itself in plain language on the same page. The site is deliberately old-fashioned in one respect: it treats a tool as a finished product, not as bait for a subscription.

Why everything runs on your device

Most online tools work by sending your input to a server, processing it there, and sending the result back. That round trip is why other sites can offer to "keep your history" — they genuinely have a copy of what you made.

ToolBench tools are written in JavaScript and run entirely in your browser. When you generate a password, compress an image, or paste a paragraph into the word counter, the data never travels anywhere. There is no upload endpoint waiting to receive it. This is a stronger promise than a privacy policy, because it is about capability rather than behaviour: the site cannot keep what it never receives. As a side benefit, the tools keep working if your connection drops after the page has loaded.

How the bench is organized

The twenty tools sit in five categories, so the thing you need is never more than a short scroll — or one press of Ctrl K — away:

• Security — a password generator, a passphrase generator, a hash generator, and a UUID generator. The tools that make secrets and identifiers.
• Images — an image compressor, resizer, and converter, plus a favicon generator for finishing touches.
• Colour — a colour studio, a WCAG contrast checker, a palette generator, and a gradient generator for anyone who works with screens.
• Data — a JSON formatter, a JSON-to-CSV converter, and Base64 and URL encoders for the formats developers juggle daily.
• Text — a diff checker, a word counter, a case converter, and a lorem ipsum generator for people who work with words.

Every tool page follows the same layout: the working tool first, then an explanation of the idea behind it, the features and limits of our implementation, step-by-step instructions, and answers to common questions. Once you have learned one page, you have learned them all.

The principles we work by

• No uploads. Your input is processed locally and disappears when you close the tab.
• No accounts. There is nothing to sign up for, nothing to verify, and no password of ours to lose in a breach.
• Honest limits. If a method is an estimate — a password strength score, a contrast ratio, a reading time — the page says so and explains the reasoning.
• Free means free. No quotas, no watermarks on downloads, no "pro" tier holding the useful button hostage.
• Plain language. Tool pages explain the concept, not just the controls, so you leave knowing slightly more than when you arrived.

Who it is for

Developers checking a hash at midnight. Designers arguing about contrast ratios. Writers watching a word count. Small business owners squeezing a product photo down to size. Students, administrators, support staff — anyone whose day includes a small digital task that should take ten seconds and somehow keeps taking ten minutes. If that sounds familiar, the bench is yours.

Frequently asked questions