Your data never leaves your browser

Every Dev Tools ! utility runs entirely in JavaScript in your browser tab. No inputs are sent to any server. Ever.

0
Servers receive your data
70+
Client-side tools
100%
Browser-only processing

Privacy Principles

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No Tracking

We use minimal analytics (opt-out available). Your tool inputs are never logged, stored, or transmitted anywhere.

🖥️

No Server-Side Processing

Every tool — Base64, JWT, Hash, Regex — runs entirely in your browser via JavaScript. Zero server round-trips for tool execution.

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Open Source Philosophy

The full source is on GitHub. You can audit the code, verify our claims, fork it, or self-host it. No black boxes.

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GDPR by Design

We collect no personal data through tool usage. Cookie consent is granular. We never sell data to third parties.

Security Checklist

Technical security measures implemented across the site.

  • Content Security Policy (CSP) headers — no unsafe-inline, no unsafe-eval
  • HTTPS enforced everywhere via Cloudflare
  • DOMPurify sanitization on all HTML rendering
  • WebCrypto API for all cryptographic operations (never Math.random)
  • Subresource Integrity (SRI) on all CDN scripts
  • No eval(), no dangerouslySetInnerHTML outside sanitized renderers
  • Cloudflare Turnstile for bot protection on all forms
  • Input validation via JSON Schema on all tool inputs

Third-Party Services

We use a minimal set of trusted third-party services, listed here for full transparency.

Google Analytics 4Analytics
Purpose: Aggregate usage analytics (page views, popular tools)
Opt-out: Via cookie consent banner — decline "Analytics" cookies to opt out.
CloudflareInfrastructure
Purpose: CDN, DDoS protection, edge network, DNS
Opt-out: Infrastructure-level — cannot be opted out, but no personal data is shared.
Cloudflare TurnstileSecurity
Purpose: Bot protection on contact and subscribe forms
Opt-out: Only active on form submission pages. No cookie set for visitors who do not use forms.

Data Retention

We store nothing server-side from tool usage. LocalStorage is used only for your preferences (theme, language, calculator history) and stays on your device. You can clear it at any time from your browser settings. We have no ability to access it.

Our Commitments

Privacy First
WCAG 2.1 AA
PWA Certified
Open Source

Questions about our privacy or security practices?

Contact Us