Tools that speed up your everyday work
Free tools for digital marketing and productivity. No sign-up, no ads, privacy first. Everything runs directly in your browser.
URL
Source
Medium
Campaign
Link
tools.davidzelenka.cz/?
utm_source=google
&utm_medium=cpc
&utm_campaign=spring_2026QR
Everything you need in one place
Hand-picked tools for everyday marketing and dev work. Fast, simple, no fluff.
CtrlV
Encrypted pastebin
Share text securely. Encryption happens in your browser; the server never sees the content or the key.
- AES-GCM encryption in the browser
- Key in URL fragment, server never sees it
- No sign-up, no tracking
UTM Generator
UTM links and QR codes
Build tracking links for campaigns and download QR codes. Templates for Google Ads, Meta and email.
- Live URL preview as you type
- Templates for Google Ads, Meta, LinkedIn, Email
- Export QR code as SVG or PNG
Pixelov
Image editor
Edit images directly in the browser. Crop, resize, batch export to ZIP.
- Drag & drop multi-file upload
- Crop, resize, format PNG/JPEG/WebP
- Batch export to ZIP archive
SEO Preview
SERP, OG & PPC preview
Check how your copy looks in Google results, social cards and PPC ads. With character counters.
- Google SERP preview with character limits
- Open Graph preview (Facebook, LinkedIn, X)
- Google Ads text ad preview
Redirect Checker
Redirect checking
Bulk URL redirect checking. Discover redirect chains, status codes and response times.
- Bulk check up to 50 URLs at once
- Visual redirect chain for each URL
- Export results to CSV
DNS Inspector
DNS records lookup
Show all DNS records for a domain. Useful for audits, email debugging, and post-migration checks.
- All record types (A, AAAA, MX, TXT, NS, CNAME, SOA, CAA, SRV)
- Auto-detection of DMARC and DKIM records
- Highlights for SPF and verification records
Cookie Configurator
Consent Mode V2 cookie banner
Build a lightweight cookie banner compatible with Google Consent Mode V2. Click the look, copy the snippet into GTM.
- Banner and modal modes with positioning
- Full Google Consent Mode V2 integration
- Less than 6 kB gzipped, no dependencies
Tools I use daily myself
I'm a marketing consultant with more than ten years of experience in digital marketing. I collect tools here that I needed myself and couldn't find anywhere else, or that were hidden behind unnecessary registrations and paid plans.
The goal is to build a quality, open collection of tools that saves time for me and for you.
Privacy first
No accounts, no marketing cookies, no retargeting. Everything runs in your browser.
No compromises
Each tool does one thing. And does it well. No paid upgrades for basic features.
Open to everyone
Free for everyone. Advanced features and client tools coming gradually.
Looking for a specific tool or strategic collaboration?
I add new tools regularly. If you need a consultation, custom solution, or you're missing a tool, get in touch directly.