Privacy Policy

The short version

Every tool on Praticulus runs entirely in your browser. Your input (JSON, passwords, regex, text, colors) never reaches our servers. We do not set cookies, do not run analytics, and do not load third-party trackers.

Verify it yourself

Trust shouldn't rely on what we say. Open your browser DevTools (F12 or Cmd+Opt+I) and check:

• Network tab — paste your data into any tool. You should see zero outbound requests carrying your input. The only requests are the page's own files (HTML, CSS, JavaScript, fonts, icons), all served from praticulus.com.
• Application → Cookies — empty. We set none.
• Application → Local Storage / Session Storage — empty, except on the two Markdown tools, which autosave your draft there so you don't lose it. That data never leaves your device.
• Console — no third-party scripts, no fingerprinting libraries.

Zero third-party origins

Every script, stylesheet, font, and image loaded by Praticulus is served from praticulus.com. No CDN, no Google Fonts, no analytics pixels. The marked, DOMPurify, and Prism libraries used by Markdown Preview are bundled with the site.

No cookies

This website does not set any cookies: no first-party, no third-party, no tracking cookies.

No analytics or tracking

We do not use Google Analytics, Meta Pixel, Plausible, Fathom, or any other tracking service. Your usage of Praticulus is anonymous.

No external font services

The three fonts (Hanken Grotesk, Space Grotesk, JetBrains Mono) are self-hosted on praticulus.com. No Google Fonts, no Adobe Fonts, no third-party font requests.

Client-side error reports

A lightweight script (error-reporter.js) reports JavaScript errors to our own server using navigator.sendBeacon. The payload contains the error message, the stack trace and the page path (no query string, no URL fragment), and like any request it carries your user-agent. It never contains the data you entered into a tool. The endpoint lives on infrastructure we own; nothing is shared with third parties.

Open source: audit it yourself

Trust should not rely on what we say. The full source behind Praticulus is public at github.com/jamalofski/praticulus under the MIT license, so every claim on this page is auditable line by line.

Color picker eyedropper

The Color Picker exposes a "Pick from screen" button on supported browsers (Chrome, Edge, Opera) that uses the native window.EyeDropper API. The browser asks for an explicit permission gesture, reads one pixel locally, and returns its HEX value to the page. No screen capture, no image data, no network call.

Server logs

Our web server records standard access logs: IP address, user-agent, requested URL, timestamp, HTTP status code. They are used for security monitoring, rotated regularly, and never shared.

No personal data collected

There is no account system, no registration, and no form on this site that collects personal information. The data you input into tools is processed locally and never sent to a server; apart from the Markdown drafts mentioned above, it is gone when you close the tab.

Affiliate disclosure

Praticulus currently displays no affiliate links. If we add them in the future (clearly marked, only on cheatsheets and articles, never on tool pages), this disclosure will be updated and a notice will appear next to each affiliate link.

For machines

A summary of this site's contents and policies is available at /llms.txt for use by language models and automated tools.

Contact

Questions about this privacy policy: contact@praticulus.com.

Last updated: September 2026