# ClickBasic

> Free, fast, privacy-first online tools for PDF processing, image manipulation, text formatting, QR code & barcode generation, financial, construction, and date calculators, and developer utilities. All tools process data locally in modern browsers or through temporary in-memory streams without account requirements, subscription paywalls, or tracking.

## Core Capabilities
- **Privacy & Security**: Zero client file retention. File transformations execute directly in the browser using WebAssembly / HTML5 Canvas or memory-buffered pipelines that immediately purge user data upon download.
- **High Performance**: Optimized client-side bundles and pre-rendered server static pages for instant load times and minimal latency.
- **No Sign-Up**: 100% free with unlimited usage, no credit cards, and no watermarks.

## Quick Links
- [All Tools](https://www.clickbasic.com/tools): Full directory of 100 free web utilities
- [Privacy Policy](https://www.clickbasic.com/privacy): Details on data protection and zero-storage guarantees
- [Contact Us](https://www.clickbasic.com/contact): Support and developer inquiries

## PDF Tools
- [PDF to JPG Converter](https://www.clickbasic.com/tools/pdf-to-jpg): Convert PDF documents into high-resolution JPG images with page-by-page extraction or ZIP download.
- [JPG to PDF Converter](https://www.clickbasic.com/tools/jpg-to-pdf): Merge multiple JPG, PNG, and WebP images into a single clean PDF document.
- [PDF Merger](https://www.clickbasic.com/tools/merge-pdf): Combine multiple PDF documents into one unified file while preserving formatting.
- [PDF Splitter](https://www.clickbasic.com/tools/split-pdf): Split multi-page PDFs or extract specific page ranges into new documents.
- [PDF Compressor](https://www.clickbasic.com/tools/compress-pdf): Reduce PDF document size without visible degradation of typography or images.
- [PDF Rotator](https://www.clickbasic.com/tools/rotate-pdf): Rotate individual or all pages within a PDF by 90, 180, or 270 degrees.
- [HTML to PDF Converter](https://www.clickbasic.com/tools/html-to-pdf): Convert raw HTML markup, CSS, and web page snippets into printable PDF documents.

## Image Tools
- [WebP to JPG & PNG Converter](https://www.clickbasic.com/tools/webp-converter): Convert WebP images to JPG and PNG online or convert JPG/PNG photos to lightweight WebP with batch download.
- [Remove Image Background](https://www.clickbasic.com/tools/remove-background): Auto magic wand background removal, manual brush eraser, and transparent PNG maker with 100% in-browser privacy.
- [Blur & Pixelate Image](https://www.clickbasic.com/tools/image-blur-redactor): Censor photos, blur faces, pixelate sensitive personal data, license plates, and credit card numbers securely.
- [Image Compressor](https://www.clickbasic.com/tools/image-compressor): Compress JPEG, PNG, GIF, and WebP images in the browser with quality controls.
- [Image Resizer](https://www.clickbasic.com/tools/image-resizer): Resize image pixel dimensions or percentage scale while preserving aspect ratio.
- [Image Cropper](https://www.clickbasic.com/tools/image-cropper): Crop photos to custom or preset aspect ratios (1:1, 16:9, 4:3) with interactive preview.
- [Image Format Converter](https://www.clickbasic.com/tools/image-converter): Convert between JPG, PNG, WebP, BMP, and GIF formats client-side.
- [HEIC to JPG Converter](https://www.clickbasic.com/tools/heic-to-jpg): Convert Apple iPhone HEIC and HEIF photos to high quality JPG, PNG, or WebP images instantly in your browser with batch processing.
- [Base64 Image Converter](https://www.clickbasic.com/tools/base64-image-converter): Convert PNG, JPG, WebP, SVG, and GIF images to Base64 Data URI strings for HTML/CSS embedding, or decode Base64 back into downloadable images.
- [SVG to PNG Converter](https://www.clickbasic.com/tools/svg-to-png): Convert SVG vector files and raw SVG markup to crisp high-resolution PNG images with 1x to 8x retina scaling and transparent backgrounds.
- [Favicon Generator & ICO Converter](https://www.clickbasic.com/tools/favicon-generator): Generate multi-resolution favicon.ico files (16x16, 32x32, 48x48) and Apple iOS / Android PWA icon sets with copy-paste HTML head tags.
- [Image to Text OCR](https://www.clickbasic.com/tools/image-to-text): Extract printed and handwritten text from images using optical character recognition.
- [Color Picker & Eyedropper](https://www.clickbasic.com/tools/color-picker): Pick colors from images or screen palettes with HEX, RGB, HSL, and HSV conversion.

## Text & Writing Tools
- [URL Slug Generator](https://www.clickbasic.com/tools/url-slug-generator): Generate clean, SEO-friendly URL slugs and permalinks with custom separators, lowercase conversion, and diacritic stripping.
- [Word & Character Counter](https://www.clickbasic.com/tools/word-counter): Analyze text length, word count, character count, reading time, and keyword density.
- [Case Converter](https://www.clickbasic.com/tools/case-converter): Transform text between UPPERCASE, lowercase, Title Case, Sentence case, and Capitalized Case.
- [Text Cases & Code Formats](https://www.clickbasic.com/tools/text-cases): Convert developer identifier naming styles across camelCase, snake_case, kebab-case, PascalCase, and CONSTANT_CASE.
- [Lorem Ipsum Generator](https://www.clickbasic.com/tools/lorem-ipsum): Generate placeholder dummy paragraphs, sentences, and lists for design mockups.
- [Grammar & Spell Checker](https://www.clickbasic.com/tools/grammar-checker): Detect and fix grammatical mistakes, punctuation errors, and typos.
- [Markdown Live Previewer](https://www.clickbasic.com/tools/markdown-preview): Real-time side-by-side Markdown editor with live rendered HTML preview and copy tools.
- [Markdown to HTML Converter](https://www.clickbasic.com/tools/markdown-to-html): Convert GitHub Flavored Markdown (GFM) into clean, semantic HTML code with live preview, code blocks, tables, task lists, and full document boilerplate export.
- [Text to Binary & Binary to Text](https://www.clickbasic.com/tools/text-to-binary): Convert plain text to binary code (0s and 1s) and decode binary back to human-readable ASCII / UTF-8 text with custom delimiters and formatting.

## Code & Developer Utilities
- [YAML to JSON & JSON to YAML Converter](https://www.clickbasic.com/tools/yaml-json-converter): Bidirectional YAML to JSON and JSON to YAML parser with indentation formatting and syntax validation.
- [HTML Entity Encoder & Decoder](https://www.clickbasic.com/tools/html-entity-encoder): Escape special characters into named, decimal, or hex HTML entities to prevent XSS attacks, and decode entities back to readable text.
- [XML Formatter & Beautifier](https://www.clickbasic.com/tools/xml-formatter): Format, indent, beautify, and minify XML documents with real-time DOM validation and syntax error checking.
- [Data Storage & Bandwidth Converter](https://www.clickbasic.com/tools/data-storage-converter): Convert storage units across decimal (KB, MB, GB, TB) and binary (KiB, MiB, GiB, TiB), plus download and upload transfer time calculator.
- [SQL Formatter & Beautifier](https://www.clickbasic.com/tools/sql-formatter): Format, beautify, indent, and minify messy SQL queries online for MySQL, PostgreSQL, T-SQL, SQLite, and Standard ANSI SQL.
- [JSON Formatter & Validator](https://www.clickbasic.com/tools/json-formatter): Format, prettify, minify, and validate JSON data structures with syntax tree views.
- [JSON Unstringify](https://www.clickbasic.com/tools/json-unstringify): Unescape stringified and double-escaped JSON strings into structured objects.
- [Base64 Encoder & Decoder](https://www.clickbasic.com/tools/base64): Encode and decode plain text or binary data to and from Base64 RFC 4648 strings.
- [URL Encoder & Decoder](https://www.clickbasic.com/tools/url-encoder): URL encode query strings, percent-encode characters, and decode URI components.
- [Cryptographic Hash Generator](https://www.clickbasic.com/tools/hash-generator): Compute MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes for strings.
- [Unix Timestamp Converter](https://www.clickbasic.com/tools/timestamp-converter): Convert Unix epoch seconds and milliseconds to human-readable dates across timezones.
- [Epoch Converter](https://www.clickbasic.com/tools/epoch-converter): Epoch time tool with live clock, relative timestamp math, and batch conversions.
- [Regular Expression Tester](https://www.clickbasic.com/tools/regex-tester): Test, debug, and highlight regex patterns with flags and capture groups.
- [CSV to JSON Converter](https://www.clickbasic.com/tools/csv-to-json): Transform CSV spreadsheet data into structured JSON objects or arrays.
- [Cron Expression Converter](https://www.clickbasic.com/tools/cron-converter): Parse 5-field cron syntax into human-readable recurring schedules and next run times.
- [GUID / UUID Generator](https://www.clickbasic.com/tools/guid-generator): Generate batch cryptographically secure RFC 4122 UUIDv4 identifiers with uppercase and hyphen options.

## QR & Barcode Generators
- [QR Code Generator](https://www.clickbasic.com/tools/qr-code-generator): Create custom high-resolution QR codes for URLs, plain text, WiFi credentials, and vCards.
- [Barcode Generator](https://www.clickbasic.com/tools/barcode-generator): Generate standard Code 128, EAN-13, UPC-A, and Code 39 barcodes for inventory and retail.
- [Password Generator](https://www.clickbasic.com/tools/password-generator): Generate high-entropy secure passwords with custom character sets and length toggles.
- [Password Strength Checker & Analyzer](https://www.clickbasic.com/tools/password-strength-checker): Test password security, calculate cryptographic entropy in bits, audit dictionary flaws, and estimate brute-force crack time against GPU clusters with 100% privacy.
- [Username Generator](https://www.clickbasic.com/tools/username-generator): Generate creative, memorable usernames and gamer tags across different themes.

## Financial & General Calculators
- [TDEE & Calorie Calculator](https://www.clickbasic.com/tools/tdee-calculator): Calculate Total Daily Energy Expenditure (TDEE), BMR, and daily calories & macros for fat loss, maintenance, or muscle gain.
- [Universal Unit Converter](https://www.clickbasic.com/tools/unit-converter): Convert length, weight, volume, temperature, area, and speed instantly between Metric and Imperial systems.
- [BMI & Health Calculator](https://www.clickbasic.com/tools/bmi-calculator): Calculate Body Mass Index (BMI) for men, women, and adults with Metric or Imperial units, WHO classification, and healthy target weight ranges.
- [Tip Calculator & Bill Splitter](https://www.clickbasic.com/tools/tip-calculator): Calculate restaurant gratuity and split bills evenly among friends with custom tip percentages, round-up options, currency support, and tipping etiquette guide.
- [Mortgage Calculator](https://www.clickbasic.com/tools/mortgage-calculator): Calculate home loan monthly payments, interest totals, and full amortization schedules.
- [Percentage Calculator](https://www.clickbasic.com/tools/percentage-calculator): Calculate percentage changes, increases, decreases, discounts, and fractions.
- [Loan EMI Calculator](https://www.clickbasic.com/tools/loan-calculator): Compute monthly loan repayments, interest rates, and loan payoff duration.
- [GPA Calculator](https://www.clickbasic.com/tools/gpa-calculator): Calculate semester and cumulative Grade Point Averages across letter grades and credit weights.
- [Zakat Calculator](https://www.clickbasic.com/tools/zakat-calculator): Calculate Islamic Zakat on savings, cash, gold, silver, investments, and business assets against Nisab thresholds.

## Date & Time Calculators
- [Days Between Dates](https://www.clickbasic.com/tools/days-between-dates): Compute elapsed calendar days, weeks, months, and years between any two dates with leap year rules.
- [Date Add & Subtract](https://www.clickbasic.com/tools/date-add-subtract): Add or subtract days, weeks, months, or years to pinpoint future or past calendar dates.
- [Business Days Calculator](https://www.clickbasic.com/tools/business-days-calculator): Calculate working days and working hours between dates, excluding weekends and public holidays.
- [Business Date Calculator](https://www.clickbasic.com/tools/business-date-calculator): Add or subtract business days to compute project deadlines and delivery dates.
- [Age Calculator](https://www.clickbasic.com/tools/age-calculator): Calculate exact age in years, months, days, hours, and countdown to your next birthday.
- [Weekday Calculator](https://www.clickbasic.com/tools/weekday-calculator): Determine the exact day of the week for any past or future date using Zeller's congruence and Conway's Doomsday rule.
- [Week Number Calculator](https://www.clickbasic.com/tools/week-number-calculator): Look up ISO-8601 calendar week numbers and date spans for any week of the year.
- [Time Duration Calculator](https://www.clickbasic.com/tools/time-duration-calculator): Calculate elapsed hours and minutes between clock times with break deductions and decimal hours.
- [Countdown Timer](https://www.clickbasic.com/tools/countdown-timer): Live ticking countdown timer to any upcoming event, milestone, or holiday.
- [Leap Year Calculator](https://www.clickbasic.com/tools/leap-year-calculator): Test if any calendar year is a leap year with 4/100/400 divisibility rule breakdown.
- [Date Pattern Calculator](https://www.clickbasic.com/tools/date-pattern-calculator): Generate recurring event schedules for daily, weekly, bi-weekly, or monthly intervals.
- [Half-Birthday Calculator](https://www.clickbasic.com/tools/half-birthday-calculator): Calculate your exact half-birthday date and key life day milestones (1,000, 5,000, 10,000 days alive).

## Counters & Trackers
- [Tally Counter](https://www.clickbasic.com/tools/tally-counter): Multi-tab digital clicker counter with audio beeps, keyboard shortcuts, and persistent storage.
- [Day Counter](https://www.clickbasic.com/tools/day-counter): Track elapsed days since a habit or milestone, or count down days until an upcoming event.
- [Score Counter & Scoreboard](https://www.clickbasic.com/tools/score-counter): Digital scoreboard for board games, card games, ping pong, and sports for 2 to 4 players.
- [Workout Rep Counter](https://www.clickbasic.com/tools/rep-counter): Gym rep and exercise set counter with automated rest intervals and sound beeps.
- [Daily Water Counter](https://www.clickbasic.com/tools/water-counter): Track hydration and water glasses drunk toward daily wellness goals.
- [Cash Counter & Denominations](https://www.clickbasic.com/tools/cash-counter): Calculate total currency drawer values across USD, EUR, GBP, and PKR bank notes and coins.
- [Stopwatch & Lap Counter](https://www.clickbasic.com/tools/stopwatch-lap-counter): Millisecond-precision stopwatch with lap splits, fastest/slowest highlights, and CSV export.
- [Character & Limit Counter](https://www.clickbasic.com/tools/character-counter): Real-time character counter with social media post character limits for X (Twitter), LinkedIn, and Instagram.
- [Habit & Daily Streak Counter](https://www.clickbasic.com/tools/habit-counter): 14-day consistency tracker and streak counter for building daily routines.
- [Dice Roller & Counter](https://www.clickbasic.com/tools/dice-counter): Polyhedral dice roller (D4, D6, D8, D10, D12, D20, D100) with roll history and distribution analytics.

## Random & Decision Tools
- [Spin the Wheel](https://www.clickbasic.com/tools/spin-wheel): Interactive decision wheel with physics deceleration, sound effects, and winner elimination.
- [Random Name Picker](https://www.clickbasic.com/tools/random-name-picker): Pick raffle and giveaway winners from custom candidate lists.
- [Random Team Generator](https://www.clickbasic.com/tools/team-generator): Split names into balanced teams and assign captains.
- [Coin Flipper](https://www.clickbasic.com/tools/coin-flipper): 3D coin toss simulator with heads/tails streaks and batch trials.
- [Decision Maker](https://www.clickbasic.com/tools/decision-maker): Magic 8-Ball and weighted probability decision helper.
- [Random Item Picker](https://www.clickbasic.com/tools/random-item-picker): Unbiased item drawer and Fisher-Yates list shuffler.

## Construction Tools
- [Concrete Block Calculator](https://www.clickbasic.com/tools/concrete-block-calculator): Calculate CMU masonry wall blocks, mortar bags, sand, rebar, and door/window deductions.
- [Retaining Wall Block Calculator](https://www.clickbasic.com/tools/retaining-wall-calculator): Calculate segmental retaining wall blocks, top cap stones, buried base courses, leveling gravel, and backfill drainage rock.
- [Concrete Block Weight Calculator](https://www.clickbasic.com/tools/concrete-block-weight-calculator): Calculate dry and grouted concrete block weights, pallet counts, and vehicle payload hauling capacities.
- [Fire Pit & Planter Block Calculator](https://www.clickbasic.com/tools/fire-pit-planter-calculator): Calculate radial trapezoid blocks for circular fire pits, steel ring inserts, top cap stones, and soil volume for raised garden planters.
- [Concrete Slab Calculator](https://www.clickbasic.com/tools/concrete-slab-calculator): Calculate concrete volume in cubic yards/meters, 60lb/80lb bags, rebar grids, and gravel sub-bases for patios, shed pads, and driveways.
- [Mortar & Concrete Bag Calculator](https://www.clickbasic.com/tools/mortar-calculator): Calculate premix bags of Type S/N mortar for block/brick walls, and fast-setting concrete bags for fence and gate posts.
- [Concrete Footing & Pier Calculator](https://www.clickbasic.com/tools/concrete-footing-calculator): Calculate concrete volume, cardboard Sonotube forms, and rebar for deck piers, continuous strip trench footings, and column spread pads.