Developer & Code
Format, validate, minify and convert code and data - JSON, CSS, JavaScript, HTML, Base64, RegEx and images.
Text Tools
Count words, convert case, compare texts, clean up duplicate lines and sort lists in one click.
Security & Generators
Cryptographically secure passwords, QR codes, UUIDs and file hashes - generated locally, never sent anywhere.
No tools match your search. Try “json”, “base64” or “password”.
Developer tools that respect your code - and your privacy
Every developer keeps a mental list of small jobs that come up a dozen times a day: a JSON response that needs formatting before it can be read, a token that has to be Base64-decoded, a stylesheet that should be minified before deploy, a regular expression that needs testing against a real string. The Alexx Access developer tools on this page handle all of those jobs in one place, completely free, with no account and no install. Open a tool, paste your content, and the result appears instantly - because every calculation happens locally in your browser.
That local-first design is the biggest difference from most online tool sites. Nothing you paste into the JSON formatter, the password generator or the hash tools is transmitted to a server; the page simply runs JavaScript on your own device. API keys, config files, draft copy and generated passwords stay exactly where they belong - with you. It also makes the tools fast: there is no upload queue and no waiting for a round trip, even on a slow connection or a phone.
The Developer & Code group covers the daily essentials. The JSON formatter beautifies with your choice of indentation and, when the input is broken, reports the precise line and column of the first error so you can fix it in seconds. The JSON, CSS, JavaScript and HTML minifiers strip comments and whitespace at a safe level that never rewrites your logic. Base64 tools work both ways and handle UTF-8 text correctly, the image converter turns any picture into a ready-to-paste data URI, the RegEx tester highlights matches live, and the favicon generator produces a genuine multi-size .ico file from a single image.
- Text tools for writers and editors: a word and character counter with reading time, a case converter covering camelCase, snake_case, kebab-case and Title Case, a line-by-line diff checker, a duplicate line remover and a flexible list sorter.
- Security & generators built on browser cryptography: passwords from crypto.getRandomValues, SHA-256 hashing through the Web Crypto API, plus QR code and UUID generators for everyday project work.
Bookmark this page and the whole toolkit is one tap away on desktop, tablet or mobile - free today, free tomorrow, with no sign-up wall in between.
Frequently asked questions
Are these developer tools really free?
Yes. Every tool on this page is completely free with no sign-up, no account and no usage limits. Open a tool, paste or upload your content, and get your result instantly.
Is my code or text uploaded to a server?
No. All 21 tools run 100% in your browser using JavaScript. Your JSON, passwords, hashes and files never leave your device, which makes these tools safe for sensitive snippets and credentials.
How does the JSON validator pinpoint errors?
When your JSON is invalid, the formatter reports the exact line and column of the first problem, along with the parser message, so you can jump straight to the broken character instead of hunting through the whole document.
Are the generated passwords secure?
Yes. The password generator uses the Web Crypto API (crypto.getRandomValues), the same cryptographically secure randomness your browser uses for security tasks - never Math.random. You control the length and character sets, and an entropy estimate shows the strength of each password.
Can I use these tools offline or on my phone?
The page and its core tools work on any modern phone, tablet or desktop browser. Once loaded, most tools keep working without a connection because everything is computed locally; only the QR and MD5 tools fetch a small library the first time you open them.
Advertisement