/Tools
Skip to content

All Tools

Explore all INSINEX Tools by category and search.

Last updated: Feb 27, 2026

Browse by category

  • 💹
    Finance47
  • 💖
    Health16
  • 🗂️
    Files7
  • 🔤
    Text31
  • 🔁
    Conversion8
  • 🛠️
    Utility70
  • 💘
    Romance11
  • All136
  • Finance47
  • Health16
  • Files7
  • Text31
  • Conversion8
  • Utility70
  • Romance11
  • Offline12

Offline indicates a tool works without a network connection (cached by the Service Worker).

🏠
Mortgage Tools Hub

Compare ARM vs Fixed, PMI drop, points break-even, affordability, and more — all in one place.

Showing 70 of 136 tools in Utility. Reset filters
|Export JSON|Export CSV|Export PDF|Copied|Copied|Copied|Copied|Shortcuts: Alt+C (CSV), Alt+J (JSON), Alt+P (PDF)

About Our Tools

Browse our collection of free online tools

🔒 Privacy First

Your data stays local

⚡ Instant Results

Get results as you type

📱 Works Everywhere

Use on any device

Popular Categories

  • Finance: Financial calculators and converters
  • Health: Health and fitness calculators
  • Files: PDF, image, and file tools
  • Category Text: Text processing and conversion tools

And many more...

  • .properties / .env ⇄ JSON Converter

    Convert between .properties (.env) and JSON locally in your browser.

    UtilityText
  • Offline

    Age Calculator

    Exact age in years, months and days.

    UtilityHealth

  • AI Image Generator

    Generate images from text with Google Imagen.

    FilesUtility

  • AI Text Summarizer

    Summarize long text into concise paragraphs or bullet points using AI.

    TextUtility

  • AI Video Generator

    Generate short videos from text (preview).

    FilesUtility

  • Anniversary Calculator

    Calculate relationship milestones and important dates.

    RomanceUtility

  • Audio Tools

    TTS, STT, voice changer and voice isolator.

    UtilityFiles

  • Base Converter

    Convert numbers between binary, octal, decimal and hexadecimal.

    ConversionUtility
  • Offline

    Base64 Encoder / Decoder

    Convert text to Base64 and back. Works offline.

    ConversionUtility
  • Offline

    Color Picker & Converter

    Pick colors and convert between HEX, RGB, HSL formats with palette generation.

    UtilityText

  • Couple Name Generator

    Create cute ship names from two names.

    RomanceUtility

  • Cron Expression Translator

    Explain standard 5-field cron expressions in plain English.

    UtilityText

  • Crush Calculator

    Find out if your feelings are mutual (for fun).

    RomanceUtility

  • CSS Minifier

    Minify CSS by removing comments and unnecessary whitespace.

    UtilityText

  • CSV to JSON Converter

    Convert CSV data into JSON arrays locally.

    UtilityText

  • Date Difference Calculator

    Calculate days between dates with human-friendly breakdown.

    Utility
  • Offline

    Discount Calculator

    Find savings and final price after discount.

    FinanceUtility

  • Essay Word Counter

    Advanced text analysis: readability, vocab, citations.

    UtilityText

  • Event Countdown

    Create customizable countdown timers you can share.

    Utility

  • Future Prediction (Fun)

    Ask the crystal ball a question and reveal your destiny.

    Utility

  • GPA Calculator

    Calculate Grade Point Average for academic performance tracking.

    Utility

  • GST Calculator

    Calculate GST from exclusive or inclusive price.

    FinanceUtility
  • Offline

    Hash Generator & Verifier

    Generate and verify MD5, SHA-1, SHA-256, SHA-512 hashes for text and files.

    UtilityText

  • Historical Age Calculator

    See your age in different eras and calendars.

    Utility

  • HTML Encoder / Decoder

    Encode or decode HTML entities safely.

    UtilityText

  • HTML Minifier

    Minify HTML by removing comments and collapsing whitespace.

    UtilityText

  • Image to Base64 (Data URL)

    Convert images to Base64 data URLs locally.

    FilesUtility

  • INI ⇄ JSON Converter

    Convert between INI and JSON locally in your browser.

    UtilityText

  • Invoice Generator

    Create invoices and download as PDF (local).

    FinanceUtility

  • IQ Test Calculator

    Fun, non-diagnostic IQ-style quiz with score.

    Utility

  • JSON Formatter & Validator

    Format, validate, and analyze JSON with stats, search, and path finder.

    UtilityText

  • JSON to CSV Converter

    Convert JSON arrays of objects into CSV with a header row.

    UtilityText

  • JWT Decoder

    Decode JSON Web Tokens locally to view header and payload.

    UtilityText

  • Kiss Compatibility Test

    A playful romantic test with a fun score and tips.

    RomanceUtility

  • Language Learning Progress Tracker

    Track daily streaks, vocabulary, and fluency goals.

    Utility

  • Lorem Ipsum Generator

    Generate placeholder text by paragraphs or sentences.

    UtilityText

  • Love Calculator

    Fun, privacy-first compatibility calculator (names or birthdays).

    RomanceUtility

  • Marriage Prediction (Fun)

    Lighthearted, astrology-inspired timing and tips.

    RomanceUtility

  • Memory Test Games

    Play simple games to assess memory and attention.

    Utility

  • Meta Tag Generator

    Generate optimized meta tags for your website including title, description, Open Graph, and Twitter Cards for better SEO.

    Utility

  • Name Meaning Generator

    Discover etymology, origins and fun personality traits.

    Utility
  • Offline

    Password Generator

    Create strong, random passwords with custom length and symbols.

    UtilityText

  • Percentage Calculator

    Calculate percentages, percentage change, and percentage of a number.

    UtilityFinance

  • Pet Age Calculator

    Convert dog and cat years into human equivalents.

    Utility
  • Offline

    QR Code Generator

    Generate QR codes for text, URLs, WiFi, and vCard contact information.

    UtilityText
  • Offline

    Random Number Generator

    Generate random numbers in a range; pick multiple unique values.

    Utility

  • Reading Time Estimator

    Estimate reading time for articles and books.

    UtilityText

  • Regex Tester

    Test JavaScript regular expressions against sample text.

    UtilityText

  • Relationship Compatibility Test

    Zodiac + fun personality match with a friendly explanation.

    RomanceUtility

  • Relationship Timeline

    Track important dates and milestones together.

    RomanceUtility

  • Research Citation Generator

    Generate APA, MLA, and Chicago style citations.

    UtilityText

  • Robots.txt Generator

    Create and customize robots.txt files to control search engine crawling for your website.

    Utility

  • School Days Calculator

    Days until graduation or vacation by calendar.

    Utility

  • Scientific Calculator

    Advanced scientific calculator with trigonometric, logarithmic, and exponential functions.

    UtilityConversion

  • SEO Analyzer

    Comprehensive SEO analysis with 46 real-time checks for technical SEO, content, performance, and rankings.

    Utility

  • Study Time Calculator

    Plan optimal study schedules and sessions.

    Utility
  • Offline

    Text Case Converter

    Convert text to upper, lower, title and sentence case.

    TextUtility

  • Text Diff (Compare)

    Compare two texts by lines, words, or characters and copy/download results.

    UtilityText

  • Time Zone Converter

    Convert time between popular time zones accurately.

    Utility

  • Timestamp Converter

    Convert between Unix timestamps and human-readable date-times.

    Utility
  • Offline

    Tip Calculator

    Split bills and calculate tips per person.

    UtilityFinance

  • TOML ⇄ JSON Converter

    Convert between TOML and JSON locally in your browser.

    UtilityText

  • Typing Speed Test

    Measure WPM and track improvement trends.

    Utility
  • Offline

    URL Encoder / Decoder

    Encode or decode URLs safely for sharing and APIs.

    ConversionUtility

  • URL Parser

    Parse URLs into protocol, host, path, query, and hash.

    UtilityText
  • Offline

    UUID Generator

    Generate RFC4122 UUID v4 identifiers with one click.

    Utility

  • Vocabulary Builder

    Daily word challenges with spaced repetition.

    UtilityText

  • Work Days Calculator

    Calculate business days between dates with holidays.

    Utility

  • XML ⇄ JSON Converter

    Convert between XML and JSON locally in your browser.

    UtilityText

  • YAML ⇄ JSON Converter

    Convert between YAML and JSON locally in your browser.

    UtilityText