PerfexTools | Powerful Tools for Everyday Use

PerfexTools - Free Online Tools for Everyday Use

PerfexTools is your all-in-one digital swiss knife for free online tools. From converting and generating to encoding, decoding, and calculating our fast, reliable utilities help developers, students, and professionals get things done in seconds, with no installation required.

Explore Tools Why PerfexTools

Our Mission

Simple, fast, and reliable tools for everyday work

We build lightweight web tools that help developers, students, and professionals complete common tasks in seconds without downloads, sign-up friction, or unnecessary complexity.

Featured Tools View All →

Age Calculator Free online age calculator find your exact age in years, months, days, weeks, hours & seconds. Leap year accurate with reverse date of birth lookup Calorie Calculator Calculate your daily calorie needs to maintain, lose, or gain weight. Includes macros and body fat formulas like Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle. BMI Calculator Calculate your Body Mass Index (BMI) instantly. Find your healthy weight range, BMI category, Ponderal Index, and weight recommendations with our free BMI Calculator. Base64 Decoder Decode Base64 text instantly with our free online Base64 Decode tool. Convert Base64 strings into readable text with copy-ready output in your browser. Password Strength Test Test password strength privately with realistic pattern detection, crack-time estimates, policy checks, entropy, and actionable security feedback. Base64 Encoder Encode text to Base64 instantly with our free online Base64 Encode tool. Convert one or multiple lines into copy-ready Base64 output in your browser.

PerfexTools

Explore Our Free Tools

Browse our collection of free tools designed to make everyday tasks easier. Click on any tool to get started.

Calculators

3 tools

Security Tools

10 tools

Base64 Decoder Decode Base64 text instantly with our free online Base64 Decode tool. Convert Base64 strings into readable text with copy-ready output in your browser. Password Strength Test Test password strength privately with realistic pattern detection, crack-time estimates, policy checks, entropy, and actionable security feedback. Base64 Encoder Encode text to Base64 instantly with our free online Base64 Encode tool. Convert one or multiple lines into copy-ready Base64 output in your browser. SHA1 Hash Generator Generate SHA1 hashes instantly with our free online SHA1 Hash Generator. Securely hash text and files locally in your browser with HMAC support. JWT Decoder Decode and verify JSON Web Tokens (JWT) instantly online. View header and payload, verify signatures, and check token expiration securely in your browser. MD5 Hash Generator Generate MD5 hashes instantly with our free online MD5 Hash Generator. Encode strings, passwords, and data into secure 128-bit MD5 fingerprints. Fast, reliable, and easy to use SHA256 Hash Generator Generate SHA256 hashes instantly with our free online SHA256 Hash Generator. Securely hash text and files locally in your browser with HMAC support. SHA512 Hash Generator Generate SHA512 hashes instantly with our free online SHA512 Hash Generator. Securely hash text and files locally in your browser with HMAC support. Bcrypt Generator & Checker Generate and verify Bcrypt hashes instantly online. Securely hash passwords locally in your browser with adjustable cost factors. Argon2 Hash Generator & Verifier Generate and verify Argon2id and Argon2i hashes securely online. Easily configure memory cost, time cost, and parallelism for your passwords.

Developer Tools

18 tools

Browser Window Size Checker Check browser window size, viewport dimensions, outer window size, screen resolution, pixel ratio and breakpoints instantly in your browser. Perfex HTML Stripper Strip HTML tags, attributes, and comments from your code instantly with our free online HTML Stripper tool. Clean up your content while preserving text. Responsive Clamp Calculator Generate fluid typography with independent min and max type scales using our free Responsive Clamp Calculator. Code to Image Converter Convert code snippets into beautiful, shareable images online. Customize syntax highlighting themes, gradient backgrounds, window frames, padding, font styling, and social media ratios. Download as high-res PNG, JPEG, WEBP, or vector SVG. Markup Validation Check your HTML documents for standard compliance, syntax errors, and standard violations securely and accurately using the official W3C Validator API. GUID Generator Generate standard and customizable GUIDs/UUIDs instantly with our free online GUID Generator. Options for bulk generation, Base64 short GUIDs, empty GUIDs, and developer-friendly formats for C#, Python, C++ and more. JSON Formatter Format, validate, repair, minify, explore, and convert JSON securely with tree, table, graph, type, diff, BigInt, and NDJSON support. Cron Job Generator Generate, parse, and translate cron expressions instantly. Build cron jobs visually, calculate next execution dates, and translate crontab strings to plain English with our free online Cron Job Generator. CSS Minifier Minify, validate, beautify, merge, and optimize CSS locally with file uploads, gzip statistics, safe presets, and instant downloads. HTML Encoder Encode HTML entities instantly online. Convert special characters to HTML entities safely and securely in your browser. JavaScript Minifier Minify, validate, beautify, batch-process, and download modern JavaScript locally with safe presets, name controls, and size statistics. Color Picker Extract colors from images or your screen with our free online Color Picker. Get HEX, RGB, HSL, and CMYK codes instantly. UUID Generator Generate UUIDs (v1, v4, v5) online in bulk. Configurable formats including hyphens, braces, quotes, and various export options. Fast and secure browser processing. HTML Decoder Decode HTML entities instantly online. Convert HTML entities back to characters safely and securely in your browser. JSON Compare Compare two JSON objects side-by-side or inline to find differences. Formats, sorts, and visualizes additions, deletions, and modifications instantly. URL Parser Parse, edit, and analyze URLs instantly with our free online URL Parser. View protocol, domain, path, and decode query parameters securely in your browser. Regex Tester Test, debug, and learn regular expressions instantly. Features live match highlighting, group extraction, and substitution preview securely in your browser. Diff Checker Compare text files online and find the differences instantly. Secure, offline-capable diff checker with multiple view modes and precision settings.

SEO Tools

1 tools

Bulk URL Opener Paste an entire list of URLs and open them all at the same time in separate tabs. Works with all browsers, no install required!

Network Tools

1 tools

Internet Speed Test Test your internet connection speed instantly. Check your download speed, upload speed, latency (ping), and jitter with our free, fast, and accurate online speed test.

Education

1 tools

Kids English Spelling Practice A kid-friendly English spelling practice tool with levels from easy three-letter words to expert dictation using browser text-to-speech.

Generators

8 tools

Lorem Ipsum Generator Generate Lorem Ipsum dummy text for your print, graphic, and web layouts. Fast and easy text generation with various dummy texts available. Name Generator Generate unique names for characters, businesses, babies, and fantasy worlds. Customize by origin, style, and industry instantly online. Password Generator Create strong, secure, and random passwords instantly. Protect your online accounts with our free advanced password and passphrase generator. Business Name Generator Generate creative, brandable business names instantly based on keywords, industry, and naming styles. Includes domain availability checks. QR Code Generator Create custom QR codes for URLs, Wi-Fi, contacts, messages, events, and more. Add colors and logos, then download PNG, WebP, JPEG, or SVG. Barcode Generator Generate over 70 barcode formats online with live validation, batch ZIPs, label-sheet PDFs, sequences, custom colors, and private browser processing. Username Generator Generate unique, creative, and secure usernames for social media, gaming, and online platforms instantly. Invoice Generator Create professional custom invoices online instantly. Add your logo, calculate taxes and discounts, and download as a polished PDF for free.

Converters

10 tools

Markdown to HTML Converter Convert Markdown text to HTML instantly with our free online Markdown to HTML Converter. Paste your markdown and get clean, formatted HTML code ready for your website. HTML to Markdown Converter Convert HTML to Markdown instantly with our free online HTML to Markdown Converter. Paste your HTML and get clean, copy-ready Markdown output. JSON to CSV Converter Convert JSON to CSV instantly with our free online JSON to CSV Converter. Paste your JSON arrays and get clean, formatted CSV data ready for Excel or Google Sheets. JSON to XML Converter Convert JSON to XML instantly with our free online JSON to XML Converter. Paste your JSON and get clean, formatted XML code ready for your needs. HTML to Text Converter Convert HTML code to plain text online. Strip HTML tags, extract meta information, and format text instantly with our free HTML to Text tool. Markdown to PDF Convert Markdown to polished PDF online. Live preview, 6 curated themes, custom fonts, syntax highlighting, Mermaid diagrams, KaTeX math, multiple file merge, cover page, TOC — all features free, no watermark. Numbers to Words Converter Convert numbers to English words instantly. Support for standard numbers, large numbers, decimals, and various currency formats (USD, EUR, GBP, INR). Batch processing supported. PDF to Word Converter Convert PDF to editable Word (DOCX) online for free. Extract text with OCR support for scanned PDFs, choose a page range, and download instantly. Private and secure. Hex Converter Convert Hex to Text, Decimal, Binary, Octal, and Base64 instantly. Features live conversion, swap endianness, delimiter options and file upload/download. CSV to Excel Converter Convert CSV files to Excel (XLSX or XLS) online for free. Features automatic delimiter detection, preview table, and secure client-side processing.

Device Testing

4 tools

Microphone Test Test your microphone online in your browser with real-time waveform visualizers, frequency spectrum analysis, decibel VU meters, clipping detection, silence noise floor tests, voice recording, loopback monitoring, and speech recognition. Webcam Test Test your webcam online in your browser. Check camera resolution, frame rate, aspect ratio, capture photos, and record videos securely. Keyboard Test Test your keyboard online in your browser. Check every key, test N-key rollover (ghosting), and view your key press history instantly. Mouse Test Test your mouse buttons, scroll wheel, and movement online. Check left, right, middle clicks, scroll speed, and extra buttons with our free interactive mouse tester tool.

Image Tools

13 tools

Perfex Image Compressor Compress JPG, PNG, and WebP images online with our Image Compressor. Reduce image size in your browser with batch uploads, quality controls, and instant downloads. PNG to WEBP Converter Convert PNG images to WEBP online with batch uploads, quality control, instant browser processing, and one-click downloads. QR Code Scanner Scan QR codes online using your camera or by uploading an image. Fast and secure PNG to JPG Converter Convert PNG images to JPG online with batch uploads, adjustable quality, background fill control, and instant browser downloads. PNG to ICO Converter Convert PNG images to ICO online with configurable icon sizes, favicon-ready output, and instant browser downloads. PNG to SVG Converter Convert PNG images to SVG online by exporting them into portable SVG containers with instant browser processing and downloads. Image Blur Tool Blur images online instantly. Adjust blur radius, apply smooth Gaussian blur, and download the blurred image without any quality loss. Meme Generator Create custom memes online for free. Choose from 100+ templates, add draggable text, stickers, filters, remove backgrounds, and export as PNG, JPG, WebP, or GIF — no watermark, no sign-up. Logo Maker Create a professional logo online instantly. Design custom logos for your business, brand, or project with free icons, fonts, colors, and high-quality PNG/SVG exports. Add Text to Image Add text to images online instantly. Easily overlay custom text, fonts, colors, outlines, and shadows to your photos in your browser. Favicon Generator Generate favicons for your website instantly. Upload an image or use text/emoji to create favicon.ico, Apple touch icons, and Android icons with HTML code. Signature Maker Create your own custom electronic signature online for free. Draw or type your signature, customize fonts, colors, and thickness, and download as PNG. Business Card Maker Create custom professional business cards online instantly. Customize templates with your logo, colors, fonts and details, and download as PNG, JPG or PDF.

Text Tools

9 tools

Perfex Typing Tutor Practice typing with Perfex Typing Tutor using timer modes, live WPM, accuracy tracking, finger guidance, custom text practice, and instant performance summaries. Perfex Character Counter Count characters, words, sentences, paragraphs, lines, spaces, punctuation, reading time, keyword density, and more with our advanced online Character Counter. Text to Handwriting Converter Convert your typed text into realistic human handwriting online. Choose from multiple handwriting fonts, ink colors, and paper styles, and download as an image or PDF. Reading Time Calculator Calculate how long it takes to read a piece of text. Perfect for timing speeches, blog posts, or presentation scripts with custom WPM settings. Random Text Generator Generate random characters, words, sentences, or paragraphs instantly. Configurable dummy text for design, layout testing, and placeholders. Reverse Text Reverse text instantly online. Flip entire strings, reverse word order, or invert line order while safely handling emojis and special characters. Case Converter Convert text between UPPERCASE, lowercase, Title Case, Sentence case, and more instantly online. A free text formatting tool to fix capitalization. Text Sorter Sort text lists alphabetically, by length, or randomly. Instantly remove duplicates, empty lines, and trim whitespace with our free online text sorter. Line Number Generator Automatically add sequential line numbers to text, lists, or code snippets. Customize the starting number, format, separator, and skip empty lines instantly.

AI Tools

1 tools

Prompt Library A searchable public library of AI prompts for writing, coding, SEO, marketing, email, and business workflows.

Date & Time

12 tools

Time Zone Converter Compare time between cities and time zones. Use the time zone converter for current local time, UTC offsets, and scheduling international meetings. Countdown Timer Create a custom countdown timer for any event. Set a specific duration or count down to a target date and time. Features alarm sounds and fullscreen mode. Stopwatch A free online stopwatch. Measure time in milliseconds, record split laps, copy results, and use keyboard shortcuts. Works offline and saves state. World Clock A free online world clock. Keep track of current local times in cities around the world, and plan meetings across multiple timezones with our interactive time slider. Time Difference Calculator Calculate the exact time difference between two times, add or subtract time from a specific starting point, or perform duration math. This calculator supports cross-day time math. Date Difference Calculator Calculate the exact number of days, months, and years between two dates. You can also use this tool to add or subtract a specific duration from a given date. Business Hours Calculator Accurately calculate the exact number of business hours and days between two specific dates and times. Configure your work week and daily hours to get precise results. Leap Year Checker Check if a specific year is a leap year instantly online. Calculate days in the year, check leap year rules, or find all leap years within a specific date range. Week Number Calculator Calculate week numbers instantly. Find the ISO or US week number for any date, or determine the start and end dates for a specific week number. Unix Timestamp Converter Convert Unix/Epoch timestamps to readable dates and vice-versa. Features live current timestamp, timezone conversion, and support for seconds and milliseconds. Timezone Difference Calculator Calculate the exact time difference between two global timezones. Automatically accounts for Daylight Saving Time (DST) and provides instant local time conversions. Calendar Generator Generate and print clean, customizable calendars online. Support for month/year views, start day selection (Sunday or Monday), and week number display.

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Why Us

Why PerfexTools is Different

PerfexTools is a free online tools platform built for speed, privacy, and simplicity. From hash generators and encoders to calculators and converters, every tool is browser-based, mobile-friendly, and ready to use without sign-up.

Why users choose PerfexTools

Fast and simple tools that work instantly with a clean, no-clutter interface.
Privacy-first processing for most utilities, so sensitive input is not stored.
Free forever access with no subscriptions and no hidden paywall features.
Accurate results for daily developer, student, and business workflows.
Regularly updated collection of practical online tools.

Free online tools for developers, students, and professionals

PerfexTools helps developers speed up tasks like encoding, decoding, hash generation, and quick data conversion. Students can use lightweight utilities for assignments and projects, while professionals can handle routine calculations and formatting tasks in seconds.

A developer looking for quick conversions
A student needing utilities for study and projects
A professional saving time with instant tools