Technical Utilities
General utility tools. 2 free tools available.
Free Online Utility Tools for Everyday Tasks
Some tasks do not fit neatly into a single category but come up regularly in daily life and work. How old am I exactly in years, months and days? Where did this suspicious email actually originate from? These are the kinds of practical questions our utility tools answer instantly, right in your browser.
Our utility tools collection focuses on accuracy and ease of use. Each tool is designed to give you precise results with clear explanations, whether you are calculating an exact age for an official form or tracing the routing path of an email for security investigation. Every tool runs in your browser with no data sent to external servers.
Want to know your exact age down to the day?
Open Age Calculator →Age Calculator - Calculate Your Exact Age
Knowing your exact age is required more often than you might think. Visa applications, insurance forms, retirement planning, school enrollment and medical records all ask for your precise age. Mental math with dates is notoriously error-prone, especially when crossing month boundaries and leap years.
Our Age Calculator takes your date of birth and calculates your exact age in multiple units:
- Years, months and days – Your age broken down into precise calendar units, correctly accounting for varying month lengths and leap years.
- Total months – Useful for medical records, especially pediatric milestones where age in months is the standard measure.
- Total weeks – Sometimes required for pregnancy tracking and certain legal calculations.
- Total days – Your exact age in days, sometimes needed for astronomical calculations or curiosity.
- Next birthday countdown – See exactly how many days until your next birthday.
The age calculator correctly handles edge cases like being born on February 29 in a leap year, month-end dates and timezone considerations. Simply select your birth date and optionally a target date to calculate age at a specific point in time.
Email Header Analyzer - Trace Email Origins
Email headers contain the hidden metadata that reveals an email's journey from sender to your inbox. This information is invaluable for several purposes:
- Phishing investigation – Verify whether an email actually came from the claimed sender by examining the originating IP address and mail server.
- Spam analysis – Identify the source server of spam emails for reporting to abuse departments.
- Delivery troubleshooting – Diagnose why emails are delayed, bounced or landing in spam folders by examining the routing hops and SPF/DKIM results.
- Authentication verification – Check SPF, DKIM and DMARC authentication results to verify email integrity.
Our Email Header Analyzer parses the raw email header text and presents the information in a clear, readable format. It extracts the sender and recipient addresses, originating IP, mail server hops with timestamps, authentication results and any suspicious indicators. The tool processes headers entirely in your browser, ensuring that sensitive email metadata is never transmitted to external servers.
How to Get Email Headers
To use the Email Header Analyzer, you first need to access the raw headers of an email. The process varies by email client:
- Gmail – Open the email, click the three dots menu, select "Show original".
- Outlook – Open the email, click File > Properties, see "Internet Headers".
- Apple Mail – Open the email, View > Message > All Headers.
- Yahoo Mail – Open the email, click the three dots, select "View raw message".
Copy the full header text and paste it into the analyzer. The tool will parse and display all relevant information within seconds.
Why Use Browser-Based Utility Tools
Accurate Results
Precise calculations that handle edge cases like leap years, timezone differences and varying month lengths.
Privacy Protected
All processing runs locally in your browser. Birth dates and email headers never leave your device.
Instant Results
Get your answer immediately. No forms to fill, no emails to wait for, no accounts to create.
Works Everywhere
Use on any device with a web browser. Desktop, tablet and mobile all fully supported.
Clear Explanations
Results come with context and explanations so you understand what the numbers mean.
Free Forever
No subscriptions, no premium tiers, no usage limits. Every feature is free for everyone.
Frequently Asked Questions
The Age Calculator is mathematically precise. It correctly handles leap years, varying month lengths (28, 29, 30 and 31 days) and calendar transitions. The result is calculated to the exact day. For people born on February 29, the tool correctly determines age relative to both leap and non-leap years.
Yes. By default the calculator computes your age from your birth date to today. You can also specify a custom end date to calculate age at any point in time. This is useful for determining age at a past event or a future date like a policy maturity date.
Email headers reveal the originating IP address (which can be geolocated), the actual sending mail server (which may differ from the displayed sender), SPF and DKIM authentication results (pass or fail indicates whether the sender is authorized), the routing path through intermediate servers and timestamps showing when each hop occurred. If SPF or DKIM fail, the email is likely spoofed or sent from an unauthorized server.
Yes. The Email Header Analyzer processes all data locally in your browser using JavaScript. The raw header text you paste is never sent to our servers or any third party. You can verify this by using the tool with your internet connection disabled after the page has loaded.
No. All utility tools work directly in your web browser. There is nothing to download, install or update. They work on Windows, macOS, Linux, iOS and Android devices. Just open the page and start using the tool.