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Free Online Word Counter★Text Case Converter★Lorem Ipsum Generator Reading Time Calculator Text Repeater Tool URL Slug Generator Text Cleaner & Formatter Duplicate Line Remover

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33 free browser-based tools for text, numbers, colors, and everyday tasks.

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Word Counter
Percentage Calculator
Age Calculator from Date of Birth
Color Converter & Palette Generator
Unit Conversion Calculator
Lorem Ipsum Generator

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All 33 free XSular tools — open any utility directly or read the matching tutorial for step-by-step explanations.

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Developer tools

Password Strength Checker — Free Online Security AnalyzerAnalyze password strength in real time with a visual meter, crack-time estimate, and actionable security tips. Includes a secure password generator. All processing stays private in your browser — free, no data sent.Binary to Text Converter — Free Online Encoder & DecoderEncode plain text to 8-bit binary and decode binary strings back to readable ASCII or UTF-8 text. Flexible delimiters including space, comma, or none. Free developer tool that runs entirely in your browser — no upload.JWT Decoder & Generator — Free Online Token ToolDecode, inspect, and verify JSON Web Tokens with header and payload views. Generate signed JWTs with custom claims, expiration, and HS256/HS384/HS512 algorithms. 100% client-side — free, secure, nothing uploaded.Base64 Encoder & Decoder — Free Online Encode & Decode ToolEncode text and files to Base64 or decode Base64 strings to text, images, and binary. URL-safe mode, line wrapping, file upload, and image preview included. Runs entirely in your browser — free, private, no upload to servers.JSON Formatter & Validator — Free Online Beautifier & MinifierFormat, validate, and minify JSON with syntax highlighting, collapsible tree view, and error line detection. Compare minified vs pretty-printed size. Free browser-based JSON tool for developers — no upload, instant results.Hash Generator — Free Online MD5 & SHA CalculatorGenerate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or uploaded files with optional HMAC support. Powered by the Web Crypto API — instant results, nothing uploaded. Free browser-based hash calculator for developers.UUID Generator — Free Online Unique ID CreatorGenerate UUID v4, v1, and v5 identifiers — single or bulk up to 1,000 at once. Options for uppercase, braces, and hyphen-free formatting. Free browser-based UUID tool with session history — no signup, instant copy.URL Encoder & Decoder — Free Online Percent Encoding ToolPercent-encode and decode URLs, query strings, and URI components with auto-detect mode and full URL parsing breakdown. Character replacement map included. Free browser tool — nothing uploaded, instant encode and decode.Regex Tester — Free Online Regular Expression DebuggerTest regular expressions with real-time match highlighting, capture groups, flag options, and replace preview. Includes a library of common regex patterns. Free browser-based debugger for developers — no signup, instant feedback.Code Minifier & Beautifier - Free Online HTML, CSS & JS ToolMinify or beautify HTML, CSS, and JavaScript snippets with live size comparison and one-click copy. Free browser-based code cleanup tool with no signup required.IP Lookup Tool - Free Online IP Address CheckerLook up public IP details including approximate location, ISP or organization, region, and timezone. Free online IP address checker for troubleshooting and support.Markdown to HTML Converter - Free Online Preview ToolConvert Markdown to clean HTML with a live preview for docs, README snippets, CMS fields, and publishing workflows. Free browser-based converter with no signup.Meta Tags Generator - Free SEO & Open Graph ToolGenerate SEO title tags, meta descriptions, Open Graph tags, and Twitter Card tags with live previews. Free metadata generator for websites and CMS pages.Robots.txt Generator - Free Online Crawler Rules ToolCreate robots.txt allow and disallow rules, add sitemap directives, and copy a clean crawler file. Free technical SEO tool for launches and audits.Text Diff Checker - Free Online Compare ToolCompare two text, code, Markdown, or log snippets and highlight added, removed, and changed content. Free browser-based diff checker with no signup.XML Formatter & Validator - Free Online XML ToolFormat and validate XML snippets with readable indentation and parser errors. Free browser tool for feeds, config files, SVG, SOAP, and sitemap XML.QR Code Generator — Free Custom QR Code Maker OnlineCreate custom QR codes from any URL or text. Customize colors, gradients, dot styles, corner shapes, logos, and error correction — then download high-quality PNG or SVG instantly. 100% browser-based, no signup.Random Word & Name Generator — Free Online RandomizerGenerate random words by category — nouns, adjectives, animals, countries, colors — or random names filtered by gender and origin. Perfect for writing prompts, testing, and creative projects. Free, browser-based, no signup.Unix Timestamp Converter — Free Online Epoch Date ToolConvert Unix epoch timestamps to human-readable dates and back — with timezone support, relative time display, and ISO/RFC output formats. Handles seconds and milliseconds. Free browser tool — instant, no signup.

Text tools

Word Counter — Free Online Text & Character CounterCount words, characters, sentences, and paragraphs in real time with live stats. Perfect for essays, blog posts, SEO copy, and social media limits. Runs entirely in your browser — free, instant, no signup required.Text Case Converter — Free Online Letter Case ChangerConvert text to uppercase, lowercase, title case, sentence case, camelCase, snake_case, and kebab-case in one click. Copy formatted results instantly. Free browser-based tool — no upload, no account needed.Lorem Ipsum Generator — Free Online Placeholder Text ToolGenerate custom lorem ipsum placeholder paragraphs and sentences for mockups, wireframes, and prototypes. Adjust word count, paragraph length, and output format. Free, browser-based, no signup — ready in seconds.Reading Time Calculator — Free Online Article Read Time EstimatorEstimate how long your content takes to read at slow, average, and fast WPM speeds. Includes word count, sentence stats, and readability insights. Free browser tool for bloggers, writers, and editors — no signup.Text Repeater — Free Online String Duplicator ToolRepeat any text or string up to 1,000 times with custom separators and live preview. Copy or download duplicated output instantly. Ideal for testing, formatting, and bulk text generation. Free, browser-based, no signup.URL Slug Generator — Free Online SEO-Friendly Slug ToolTurn titles and phrases into clean, SEO-friendly URL slugs with stop-word removal, custom separators, max length limits, and bulk processing mode. Copy results instantly. Free browser tool for bloggers and developers — no signup.Text Cleaner & Formatter — Free Online Text SanitizerClean messy text by removing extra spaces, blank lines, HTML tags, smart quotes, numbers, and special characters. Compare before and after with live character stats. Free browser tool — no upload, copy clean results instantly.Duplicate Line Remover — Free Online List DeduplicatorRemove duplicate lines from any text list with case-sensitive or insensitive matching, whitespace trim, blank line removal, and A–Z or Z–A sorting. Copy or download clean results. Free browser tool — no signup required.

Color tools

Color Converter — Free Online HEX, RGB & HSL ToolConvert colors between HEX, RGB, HSL, and CMYK with live preview. Generate harmony palettes, check WCAG contrast ratios, and export CSS variables. Free browser-based color tool for designers and developers — no signup.

Number tools

Percentage Calculator — Free Online Percent Math ToolCalculate X% of any number, find what percent one value is of another, or compute percent increase and decrease between two values. Three calculation modes with instant results. Free, browser-based, no signup.Number to Words Converter — Free Online Spelling ToolSpell numbers as words in 30+ languages with cheque-style currency lines for 40+ ISO currencies including USD, EUR, MAD, and JPY. Supports negatives and decimals. Free browser-based converter — no signup, instant results.Unit Converter — Free Online Measurement CalculatorConvert length, weight, volume, temperature, time, pressure, energy, data storage, and 10+ other categories. Search units, swap direction, and get instant results. Free browser-based calculator — no signup, always accurate.Age Calculator — Free Online Date of Birth ToolCalculate exact age from date of birth in years, months, days, weeks, and hours. Includes birthday countdown, zodiac sign, Chinese zodiac, and milestone stats. Free browser-based tool — no signup, instant accurate results.Currency Converter — Free Online Live Exchange RatesConvert 150+ world currencies with live mid-market exchange rates. Swap currency pairs quickly and jump to popular shortcuts for USD, EUR, GBP, MAD, and more. Free browser-based converter — instant results, no signup.

Blog

Guides, tips & tool deep dives

Practical articles on writing, development, design, and productivity — each tied to a free XSular tool you can use right away.

31 articles

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Results for “json”

2 total

DeveloperJul 5, 2026

The Ultimate Guide to JSON Web Tokens (JWT)

Learn how JSON Web Tokens work under the hood. Understand headers, payloads, and signatures, and decode or generate JWTs safely in your browser.

4 min readRead article

DeveloperJul 5, 2026

The Ultimate Guide to JSON Formatting and Validation

Learn how to expertly format, validate, and debug complex JSON data instantly in your browser without compromising sensitive API secrets.

5 min readRead article

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