Diagnose domains and sites
Check DNS, email health and web status before setting up monitoring.
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Free web tools
Find the right web tool in seconds.
Search practical tools for IP, DNS, PDFs, QR codes, JSON, images, invoices, time zones and website checks. Open the free tool directly, no account required.
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Free answer firstTool pages prioritize the input and result before background reading.
Localized navigationBrowse the same tool families in five public languages.
Tool finder
Free tools ready to use
Start with a direct tool page. The cards below filter as you type or choose a category.
What is my IP
See the public IP observed by the service without signing in.
Open toolDNS Propagation
Check DNS values and compare them with an expected answer.
Open toolLoan Payment
Estimate a payment, total interest and scenario range in the browser.
Open toolJSON Formatter
Format, validate and inspect structured data locally.
Open toolTime Zone Converter
Translate a meeting time across cities and zones.
Open toolStatic QR
Create a static QR code preview for a public-safe payload.
Open toolInvoice Builder
Draft a basic invoice and prepare a browser-side document.
Open toolSPF Checker
Inspect a domain SPF record and understand the next fix.
Open toolWebsite Status
Check whether a site is reachable and see the first status details.
Open toolImage Compressor
Compress an image locally and compare output basics.
Open toolPDF Merge
Combine PDFs with a simple browser-first tool.
Open toolChoose by task
Create client documents
Draft invoices, quotes, receipts and PDFs with browser-first tools.
Prepare launch assets
Generate QR links, optimize images and keep conversion assets tidy.
Plan operations
Model business numbers, schedule across time zones and inspect developer snippets.
Network sites
Explore focused tool suites
Browse each focused site when you want a fuller tool set around one task family.
Network diagnostics
NetProbe Atlas
IP, DNS, domain and SSL diagnostics for public troubleshooting.
Calculators
CalcHarbor
Financial and business calculators with formulas users can inspect.
Developer utilities
DevUtility Lab
Developer utilities designed to process sensitive snippets locally first.
Time and dates
TimeNexus
Time, date and unit helpers for everyday global coordination.
QR and links
QRRoute
QR, barcode, UTM and link tools with clear abuse controls.
Documents
InvoiceCraft
Invoices, quotes and receipts that work before account creation.
Email deliverability
MailHealth
Email authentication and deliverability checks for safer domains.
Website monitoring
SitePulse Lab
Website status, headers and performance checks for first response.
Images
PixelBatch
Image optimization tools for web and commerce images.
Documents
DocShift
PDF and document utilities with privacy-first processing rules.
Product principles
Free must work
The basic user need is solved without mandatory signup.
Privacy by default
Browser-side processing is preferred when it reduces collection.
Respectful growth
Advanced options stay separate from the free answer and never interrupt the core task.
Community support
Support the free network
The best support today is practical: share useful tools, report corrections and bookmark the pages you use most.
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- Send a correction
- Use the free tools