Free Online Tools & Calculators

Toolstrem offers free online calculators, academic tools, PDF converters, domain utilities, typing tests, image tools, and productivity tools. Fast, accurate, and mobile-friendly.

> Initializing secure stream diagnostics connection...
Security Grade Rating
-
Score: -/100

Diagnostic Connection Parameter Details
Target Host
TLS Protocol
Cipher Suite
Handshake Speed

Namecheap SSL Hostinger SSL

Certificate Attributes

Attribute Details Value / Information Parameters

Certificate Trust Verification Path

Related Network & Security Tools

Explore other Toolstrem diagnostics tools to optimize your website security, domains, and network health parameters.

Ping Test
Check latency
Online Traceroute
Diagnose network path
Domain Checker
Verify domain status
Whois Lookup
Check registrar ownership

Frequently Asked Questions

Answers to common questions about PDF formatting, DOCX extraction, security, and local browser processing.

A link shortener converts long, complex URLs into short, clean, easy-to-share links that redirect users safely to the target destination.

Yes! Toolstrem is 100% free for up to 10 short links per day, including custom aliases, QR code generation, and the Link Ready page.

Free plan users can create 10 links per day (resets every midnight). Pro plan users ($2/mo) get unlimited link creation.

Yes, you can enter custom short aliases (e.g. toolstrem.com/my-link) directly when shortening your link.

Yes, every link created automatically provides a high-resolution companion QR code ready for print and digital sharing.

Yes, Toolstrem tracks click activity. Pro users ($2/mo) unlock real-time click charts, unique visitors, and CTR stats.

Pro Plan unlocks Total Clicks, Unique Visitors, CTR %, Clicks Over Time charts, Country/Geo Analytics, Device reports, and CSV exports.

Yes, Toolstrem is fully responsive and optimized for smartphones, tablets, and desktop computers.

Yes, custom short URLs are perfect for Instagram bio links, Twitter/X posts, YouTube descriptions, and LinkedIn campaigns.

Toolstrem uses SSL encryption and automated anti-malware verification to ensure all shortened redirects are completely secure.

It combines keywords, prefixes, suffixes, and AI-driven brand structures to generate over 100 domain name ideas and check their availability in real time.

It queries standard registrars and RDAP registries to retrieve ownership, registration dates, registrar information, and nameserver configurations of any domain name.

It checks the precise registration expiration date of a domain and calculates the exact number of remaining days before it returns to public auction.

It identifies the hosting provider, IP address, ISP, and datacenter location of any website, helping you analyze where competitor platforms are hosted.

It maps the path data packets travel from our servers to the target domain, detailing every hop, response time (RTT), and geolocation along the route.

It queries global nameservers to print all active DNS records—including A, AAAA, MX, CNAME, TXT, and NS records—for troubleshooting routing issues.

It geolocates any IPv4 or IPv6 address, displaying the country, city, ISP, ASN, and coordinate map of the IP location.

It checks the validity of a website's SSL/TLS certificate, testing the signature algorithm, issuer, activation dates, and expiration timeline.

It calculates your exact age in years, months, weeks, days, hours, and minutes based on your birth date, alongside a countdown to your next birthday.

It uses height and weight parameters to calculate your Body Mass Index (BMI) and class according to standard WHO weight categories.

It estimates the daily number of calories your body needs to maintain, lose, or gain weight based on your physical activity profile.

It calculates your optimal daily water consumption based on weight and activity levels to keep you properly hydrated.

It measures your typing speed in Words Per Minute (WPM) and accuracy percentage across a choice of 11 languages over 1-minute to 5-minute durations.

The Clicks Per Second (CPS) test measures your mouse clicking speed over selected time intervals, showing your average clicks and mouse reaction curves.

It provides a visual sandbox to test left, right, middle clicks, double clicks, scroll wheel registers, and tracking accuracy.

It lets you press keys on your physical keyboard to see them light up on a virtual layout, testing key rollover and latency issues.

It analyzes a block of text to show word counts, character counts (with and without spaces), sentence counts, reading times, and keyword density stats.

It generates high-entropy random passwords with configurable lengths, numbers, symbols, and case variations that are impossible to brute force.

It converts text strings, email addresses, or website links into high-contrast QR code images that you can customize and download.

It converts long URLs into clean, shortened links that are easier to share, track, and manage across social media channels.