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Password generator
Create a long, unique password of any length — cryptographically strong, right in your browser.Open the toolPassword leak check
Find out whether your password has appeared in a known breach. It never leaves the browser (k-anonymity).Open the toolQR code generator
A QR for any link or text with PNG download — no watermarks, right in your browser.Open the toolUTM link builder
Build links with utm_source, utm_medium and utm_campaign. Presets for Google Ads, social and email.Open the toolURL slug generator
Transliterate Russian and Ukrainian text into a clean, SEO-friendly URL slug.Open the toolCharacter counter
Characters, words, sentences and reading time — with limits for SEO, X/Twitter and Telegram.Open the toolPhone number check
E.164 format, country by code and validity — in the browser. Carrier and spam-risk are paid Astrina.Open the toolReviews & rating
Collect honest 1–5★ reviews and show your rating on the site — via Astrina Reviews.Privacy by design
Your data stays with you
Privacy here comes from how the tools are built, not from a promise in the footer.
Computed on your device
Passwords, texts, links and numbers are processed by JavaScript right in your browser.
Five characters, not a password
The breach check uses k-anonymity: the server gets only a 5-character hash prefix shared by hundreds of passwords.
No accounts, no logs of what you type
We count only anonymous usage — which tool was opened, never what you entered.
Ostohlo studio
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