Welcome to the

All Your Everyday Web Tools at SmartToolPack

71 free tools that run in your browser. Calculators, PDF, image, text and developer utilities. No sign-up.

Financial & Health Calculators

Interest, loan EMI, compounding, BMI health, discount savings, and tax calculation tools.

  • Finance

    FD Calculator

    Calculate Fixed Deposit maturity amounts, interest returns, and monthly/quarterly compounding.

    Open FD Calculator
  • Health

    BMI Calculator

    Calculate Body Mass Index, health risk category, and ideal target weight in metric or imperial units.

    Open BMI Calculator
  • Math

    Percentage Calculator

    Compute X% of Y, calculate percentage of totals, and percent increase/decrease differences.

    Open Percentage Calculator
  • Shopping

    Discount & Tax Calculator

    Calculate sale prices after percentage discounts, money saved, and optional sales tax.

    Open Discount & Tax Calculator
  • POPULARFinance

    Loan EMI Calculator

    Calculate monthly EMIs, total interest payable, and repayment schedules for home, car, and personal loans.

    Open Loan EMI Calculator
  • POPULARInvestments

    SIP & Investment Calculator

    Estimate wealth accumulation, compound growth, and future returns on your Mutual Fund SIPs.

    Open SIP & Investment Calculator
  • Finance

    Credit Card Interest Calculator

    Calculate credit card minimum payoff timelines, APR interest charges, and debt payoff strategies.

    Open Credit Card Interest Calculator
  • Tax

    GST Tax Calculator

    Compute inclusive and exclusive GST rates with CGST and SGST splits.

    Open GST Tax Calculator
  • Finance

    Compound Interest Calculator

    Calculate monthly, quarterly, and annual compound interest accumulation.

    Open Compound Interest Calculator
  • Health

    BMR & Calorie Calculator

    Calculate Basal Metabolic Rate and daily maintenance calorie expenditure.

    Open BMR & Calorie Calculator

PDF Document Utilities

Client-side PDF page cropping, merging, splitting, and format conversion.

  • Security

    PDF Password Remove

    Remove a known password or owner restrictions from a PDF so it opens, prints, and copies freely. Runs entirely in your browser.

    Open PDF Password Remove
  • Security

    PDF Password Add

    Protect a PDF with a password and permission locks for printing, copying, and editing. Encryption happens on your device.

    Open PDF Password Add
  • POPULARDocuments

    PDF Margin Crop

    Crop whitespace margins, re-align printable areas, and adjust PDF page frames directly in your browser.

    Open PDF Margin Crop
  • Documents

    PDF Merge & Split

    Combine multiple PDF files into one, split pages into individual files, and shrink PDF storage size.

    Open PDF Merge & Split
  • Documents

    PDF Converter Studio

    Convert PDF documents to editable Word (.docx), Excel spreadsheets, JPG images, or vice versa.

    Open PDF Converter Studio

Image & Media Suite

Favicon creation, image resizing, background erasing, palette generation, and aspect ratios.

  • AIAI Tools

    Audio & Video Transcription

    Turn speech in audio or video files into text with an on-device Whisper model, then export TXT or SRT subtitles.

    Open Audio & Video Transcription
  • Media

    Image Format Converter

    Convert photos between PNG, JPG, and WebP formats client-side.

    Open Image Format Converter
  • Media

    Image Cropper Studio

    Crop photos to 1:1 square, 16:9 widescreen, or 4:3 portrait aspect ratios.

    Open Image Cropper Studio
  • Media

    SVG Code Optimizer

    Minify, clean up extra tags, and shrink vector SVG graphics file sizes.

    Open SVG Code Optimizer
  • Media

    Image to Base64

    Convert image files into Base64 Data URIs or decode Base64 strings to images.

    Open Image to Base64
  • Media

    Favicon Generator

    Convert logos or photos into 16x16, 32x32, and Apple Touch icon PNG files.

    Open Favicon Generator
  • Media

    Image Resizer & WebP

    Resize photos, change pixel dimensions, and compress images to WebP format.

    Open Image Resizer & WebP
  • AIMedia & AI

    Background Remover

    Instantly erase photo backgrounds, isolate portrait subjects, and export clean PNG cutouts.

    Open Background Remover
  • Design

    Color Palette & Contrast

    Extract color swatches from uploaded images and check text accessibility contrast ratios.

    Open Color Palette & Contrast
  • Design

    Aspect Ratio Scaler

    Calculate exact width and height dimensions for 16:9, 9:16, 4:3, and custom display ratios.

    Open Aspect Ratio Scaler

Text Processing Suite

String transformations, line deduplication, word counter, age calculator, and pomodoro timer.

  • Text

    Case Converter

    Convert text between UPPERCASE, lowercase, Title Case, camelCase, kebab-case, and snake_case.

    Open Case Converter
  • Text

    Text Cleaners & Deduplicator

    Remove duplicate lines, sort text alphabetically, strip extra spaces, reverse string, and escape HTML.

    Open Text Cleaners & Deduplicator
  • Text

    Markdown to HTML Converter

    Convert Markdown content to HTML elements or view formatted Markdown live.

    Open Markdown to HTML Converter
  • Text

    Text Compare & Slug Generator

    Compare two text blocks side-by-side or generate SEO-friendly URL slugs.

    Open Text Compare & Slug Generator
  • Utilities

    URL Shortener & QR

    Shorten long links with TinyURL or is.gd, generate a QR code for each one, and keep a history in your browser.

    Open URL Shortener & QR
  • Utilities

    Word & Character Counter

    Count words, characters, sentences, paragraphs, and estimate reading time.

    Open Word & Character Counter
  • POPULARProductivity

    Pomodoro Focus Timer

    Boost focus with structured 25-minute work sprints and interval rest breaks.

    Open Pomodoro Focus Timer
  • Daily Tools

    Age & Birthday Calculator

    Calculate exact age breakdown in years, months, and days.

    Open Age & Birthday Calculator
  • Daily Tools

    Date Difference Calculator

    Count the calendar days and weeks between two dates, or add days to a date.

    Open Date Difference Calculator
  • Utilities

    Universal Unit Converter

    Convert length, weight, temperature, area, digital data, and live currency rates.

    Open Universal Unit Converter
  • Daily Tools

    Time Zone Clock

    Compare global time zones, schedule meetings, and convert international business hours.

    Open Time Zone Clock

Developer Utilities & Crypto

JSON formatter, Base64 encoder, URL encoder, UUID generator, JWT decoder, Unix timestamp, and Hash generator.

  • DevTools

    Regex & SQL Formatter

    Test regular expressions with match highlighting and format complex SQL queries.

    Open Regex & SQL Formatter
  • DevTools

    Cron Expression Parser

    Parse Linux crontab expressions into plain English schedules.

    Open Cron Expression Parser
  • DevTools

    Color Converter (HEX/RGB/HSL)

    Convert colors between HEX, RGB, and HSL values.

    Open Color Converter (HEX/RGB/HSL)
  • DevTools

    JSON Formatter & Validator

    Prettify, format, validate, and minify JSON payloads with syntax error detection.

    Open JSON Formatter & Validator
  • DevTools

    Base64 Encoder / Decoder

    Encode UTF-8 plain text to Base64 format or decode Base64 strings back to text.

    Open Base64 Encoder / Decoder
  • DevTools

    URL Encoder / Decoder

    Encode special characters in URLs using percent-encoding or decode URI query parameters.

    Open URL Encoder / Decoder
  • DevTools

    UUID Generator

    Generate single or bulk RFC 4122 v4 UUID strings with customizable uppercase and hyphen formatting.

    Open UUID Generator
  • DevTools

    JWT Decoder

    Decode JSON Web Token headers, payload claims, and expiration timestamps securely.

    Open JWT Decoder
  • DevTools

    Unix Timestamp Converter

    Convert Epoch seconds and milliseconds to human-readable UTC/Local date strings and vice versa.

    Open Unix Timestamp Converter
  • Security

    Cryptographic Hash Generator

    Compute SHA-256, SHA-512, and SHA-1 checksum hashes using browser Web Crypto APIs.

    Open Cryptographic Hash Generator
  • Security

    Password & QR Code Studio

    Create random cryptographic passwords and customize scannable QR codes for websites and WiFi.

    Open Password & QR Code Studio

CSS & Visual Generators

Gradient generators, box shadows, flexbox layout playgrounds, clip-path builders, and CSS animation studios.

HTML & JavaScript Utilities

HTML escaping, table generation, live previews, JS obfuscation, and JSON array converters.

Currency & Unit Converters

Currency conversion, roman numerals, base conversion, dummy data, and format validators.

SEO Tools & Web Guides

Meta tag generator, code minifier, robots.txt, schema markup, and speed test.