Step-by-step usage guides, examples, quick tips and accessibility notes for our most used tools. Click a tool heading to jump to its section.
Calculator — Quick Guide
A simple, fast calculator for everyday math. Includes a visible input, keypad, and calculation history.
How to use
- Type numbers using your keyboard or tap the on-screen keypad.
- Use operators (+, −, ×, ÷) to build the expression.
- Press = (or Enter) to calculate the result.
- Use C or AC to clear current input.
- Open the history panel to re-use previous expressions (tap an entry to restore it).
Tip: Use parentheses ( ) for grouping. The calculator follows standard operator precedence.
Examples
- Calculate VAT: 120 × 1.15 → enter
120*1.15 and =
- Average of 3 numbers: (12 + 17 + 21) ÷ 3 →
(12+17+21)/3
Accessibility: keypad buttons are keyboard-focusable and have ARIA labels.
Age Calculator — Quick Guide
Calculate someone's age from their birthdate and see days until their next birthday.
How to use
- Select or type the birthdate (YYYY-MM-DD or use the date picker).
- Press Calculate.
- The tool shows years, months, and days old, and days until next birthday.
Tip: If you want age at a specific date (not today) — use the optional "Calculate for date" field if available.
Examples & notes
- Example: Born 2000-09-13 → shows current age and days until next birthday.
- Use for planning events (birthdays, eligibility checks, etc.).
QR Code Tool — Quick Guide
Generate QR codes for text, URLs, phone numbers, or Wi-Fi credentials. You can also decode QR images.
Generate a QR
- Choose the QR type (Text, URL, Wi-Fi, Phone, etc.).
- Enter the content (URL or text). For Wi-Fi, enter SSID, password and encryption type.
- Choose size and optional error correction (higher = more tolerant to damage).
- Click Generate. Download PNG/SVG or scan from screen.
Tip: Use high error correction when printing codes on physical materials.
Decode a QR
- Open the decoder tab.
- Upload an image of the QR or use device camera (if supported).
- The tool extracts and shows the encoded text or link. Click the link to open it.
Privacy: decoding happens locally in most browsers — no content is stored by Aivorize.
Password Generator — Quick Guide
Create strong, customizable passwords — choose length and character sets (lowercase, uppercase, numbers, symbols).
How to generate
- Select desired length (recommended 12+ for most accounts).
- Toggle character groups: uppercase, lowercase, numbers, symbols.
- Optionally remove ambiguous characters (like O/0 or l/1).
- Click Generate. Use the copy button to quickly copy to clipboard.
Tip: Use the generator for unique passwords per site and store them in a password manager.
Best practices
- Use 16+ characters for critical accounts.
- Include symbol & number sets for stronger entropy.
- Do not reuse passwords across important accounts.
Password Strength — Quick Guide
Analyze passwords for length, common patterns, dictionary words, and estimated crack time.
How to check strength
- Type or paste the password into the input field (only do this for your own passwords).
- Tool provides a score, shows weak patterns (like repeating characters), and estimates time to crack.
- Follow suggestions to improve: increase length, add varied character types, avoid dictionary words.
Tip: Use the strength suggestions to tweak the password and re-check until you reach a strong score.
Privacy note
We recommend checking strength only for passwords you own; avoid pasting other people's passwords publicly. The check runs client-side when possible.
Unit Converter — Quick Guide
Convert between units for length, weight, volume, temperature, speed and more.
How to convert
- Select the conversion category (Length, Mass, Volume, Temperature, etc.).
- Choose the source unit and the target unit.
- Enter a numeric value and press Convert (or press Enter).
- Results show with a precise decimal and often a rounded friendly format.
Tip: For temperature conversions, the tool accounts for offsets (C ↔ F).
Examples
- Convert 5 kilometers to miles: select Length → km → miles → enter 5 → Convert.
- Convert 2048 MB to GB: File size conversions use 1024 or 1000 base depending on chosen mode (if available).
File Size Converter — Quick Guide
Translate between bytes, KB, MB, GB, TB — handy for storage planning and uploads.
How to use
- Enter a size (e.g. 1536).
- Pick the unit (Bytes, KB, MB, etc.).
- Select conversion base: 1024 (binary) or 1000 (decimal) if option available.
- Press Convert to see equivalent values across units.
Tip: Choose 1024 for OS-level sizes (GB shown by many file systems), and 1000 for marketing sizes (manufacturer labels).
Use cases
- Find how many MB a 3.5 GB file is (3.5 × 1024 = 3584 MB).
- Estimate upload time: combine file size with your upload speed to plan transfers.
Stopwatch — Quick Guide
Measure elapsed time, pause/resume, and record lap times.
How to use
- Press Start to begin timing.
- Use Lap to record intermediate splits; laps appear in a list.
- Press Pause to stop the timer temporarily; press Resume to continue.
- Press Reset to clear.
Tip: Use Lap to compare lap consistency (sports, tasks, experiments).
Examples
- Time a workout set and record laps for each rep or round.
- Use for cooking or time-boxed tasks to measure accurate durations.
Countdown Timer — Quick Guide
Create timers for tasks, focus sessions, or events with optional audio alerts.
How to use
- Enter the amount of time or pick an end time and date.
- Click Start. The timer counts down live.
- When time ends, an alert sound plays (allow audio permissions in browser).
- Use Pause and Reset to control the timer. Save presets for repeated tasks (if supported).
Tip: Use a gentle audio alert for focus sessions and a stronger one for important deadlines.
Examples
- Pomodoro: 25 min work, 5 min break – create presets for fast start.
- Event Countdown: input future date/time to show time left until the event.
Dice Roller — Quick Guide
Roll single or multiple dice with custom sides — ideal for games and random decisions.
How to use
- Choose number of dice (e.g., 1, 2, 3...).
- Select the type of die (d6, d20, custom sides like d10).
- Click Roll. Results show individual rolls and total (if requested).
- Use Keep / Drop options if tool supports advanced dice (RPG use).
Examples
- Roll 2d6: useful for tabletop games — shows both die values and sum.
- Use a d20 for quick decision: roll once and check result.
Spin Wheel — Quick Guide
Create a wheel with segments to randomly pick winners, chores, or options.
How to use
- Add segments (names/options) into the list. You can include colors and weights if available.
- Press Spin. The wheel animates and selects a random segment.
- Use repeat/once options to determine whether the chosen option is removed for next spins.
Tip: Use weights to bias selections (useful for probability testing or giving some options higher chance).
Examples
- Classroom reward: add student names and spin to choose who answers.
- Random meal: list meal options and spin to decide dinner.
Head & Tails — Quick Guide
Flip a virtual coin for quick binary decisions.
How to use
- Press Flip. The coin flips and shows Head or Tail.
- Optionally set number of flips to get frequency stats.
- Use for 50/50 choices where a fair coin is needed.
Notes
The result is random; if you need repeatability, seedable PRNGs are required (not provided here).
Emoji Picker — Quick Guide
Search and copy emojis, browse categories, and access commonly used emoji sequences.
How to use
- Search by name (e.g., "smile", "heart") using the search bar.
- Browse categories (Smileys, Food, Travel, Objects, etc.).
- Tap an emoji to copy it to clipboard — paste into messages, social media, or documents.
Tip: Click recently-used to see a quick history of your pasted emojis.
Examples
Use emoji combos for quick reactions: 🎉👏🔥 — copy and paste into your message field.
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