Popular tools
JSON Formatter
Format and beautify JSON online. Pretty-print with 2 or 4 space indentation, validate syntax and copy or download the result. Free and private.
JSON Validator
Validate JSON online and find syntax errors instantly, with line and column numbers. Free JSON lint tool that formats valid JSON too.
JSON to CSV
Convert JSON arrays to CSV. Nested objects are flattened to dot-notation columns. Choose the delimiter and download a .csv file.
HEIC to JPG
Convert iPhone HEIC/HEIF photos to JPG online for free. Batch conversion in your browser, with no upload needed.
Image Compressor
Compress JPG, PNG and WebP images online without visible quality loss. Set a target size or quality. Batch and private.
Merge PDF
Merge multiple PDF files into one. Drag to reorder, free with no watermark, and processed in your browser.
PDF to Word
Convert PDF to an editable Word document (DOCX) online for free. No watermark and no sign-up.
Word Counter
Count words, characters, sentences, paragraphs and reading time instantly. Free online word and character counter.
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case and more.
Password Generator
Generate strong, random passwords with a chosen length, symbols and numbers. Uses cryptographically secure randomness. Nothing is stored.
URL QR Code
Create a QR code for any website link. Customize colors, dot style and logo, then download PNG or SVG. Free and never expires.
JWT Decoder
Decode JWT tokens online and view the header, payload and claims. See issued-at and expiry times in readable form. Nothing is uploaded.
Percentage CalculatorNEW
Calculate percentages instantly: X% of Y, what percent X is of Y, percentage change between two values, and increasing or decreasing by a percentage.
Unit ConverterNEW
Convert length, weight, temperature, volume, area, speed, data storage, time, pressure and energy units instantly. See the value in every unit at once.
Loan CalculatorNEW
Calculate your monthly loan payment (EMI), total interest and payoff date. Includes an amortization schedule and the savings from extra payments.
BMI CalculatorNEW
Calculate your body mass index (BMI) in metric or imperial units, see your WHO weight category and the healthy weight range for your height.
Image ResizerNEW
Resize images by width, height or percentage, or to exact dimensions. Batch resize JPG, PNG and WebP in your browser with high-quality scaling.
Spin the WheelNEW
Spin a wheel to pick a random name, winner or choice. Add your own entries, shuffle, and remove winners. Fair, free and works on any device.
Typing Speed TestNEW
Test your typing speed in words per minute (WPM) and accuracy with 15-second to 2-minute tests. Live error highlighting and instant results.
QR Code ScannerNEW
Scan QR codes with your camera or from an image or screenshot. Reads links, Wi-Fi, contacts and text privately in your browser. No app needed.
JSON Tools
58 tools
JSON Formatter
Format and beautify JSON online. Pretty-print with 2 or 4 space indentation, validate syntax and copy or download the result. Free and private.
JSON Viewer
View JSON as a collapsible tree. Explore nested objects and arrays, search keys, and copy paths. Free online JSON viewer that runs in your browser.
JSON Validator
Validate JSON online and find syntax errors instantly, with line and column numbers. Free JSON lint tool that formats valid JSON too.
JSON Editor
Edit JSON online with syntax highlighting, code folding, auto-format and live validation. Import a file and download your edited JSON.
JSON Minifier
Minify JSON by removing whitespace and line breaks. Reduce payload size instantly and see how many bytes you saved.
JSON Cleaner
Clean JSON online: remove null values, empty strings, empty arrays and objects, then format the result. Free JSON cleanup tool.
JSON Sorter
Sort JSON object keys alphabetically (A-Z or Z-A), recursively through nested objects. Makes JSON diffs and reviews easier.
JSON Compare
Compare two JSON documents and see added, removed and changed values with their paths. Key order is ignored. Free online JSON diff.
Image Tools
35 tools
JPG to PNG
Convert JPG images to PNG online for free. Batch convert multiple files in your browser, with no upload and no watermark.
PNG to JPG
Convert PNG to JPG online and choose the quality level. Transparent areas are filled with white. Batch support, no upload.
JPG to WebP
Convert JPG and PNG to WebP for smaller, faster-loading web images. Adjustable quality and batch conversion.
WebP to JPG
Convert WebP images to JPG for maximum compatibility. Choose the quality, convert in batches, and keep files on your device.
HEIC to JPG
Convert iPhone HEIC/HEIF photos to JPG online for free. Batch conversion in your browser, with no upload needed.
JPG to HEIC
Convert JPG images to HEIC for smaller files at the same quality. Free online converter.
PNG to SVG
Convert PNG and JPG to scalable SVG vectors by tracing. Choose color count and detail. Works best for logos and icons.
SVG to PNG
Convert SVG to PNG at any size or scale with a transparent background. Free, fast and in-browser.
PDF Tools
23 tools
Rotate PDFNEW
Rotate all or selected PDF pages by 90°, 180° or 270° and save the result permanently. Works in your browser; your PDF is never uploaded.
Add Page Numbers to PDFNEW
Number the pages of a PDF: choose the position, format (1, Page 1, 1 of 10), starting number and font size, and skip the cover page.
Watermark PDFNEW
Add a text watermark such as CONFIDENTIAL or DRAFT to every page of a PDF. Choose size, opacity, color and a diagonal, centered or tiled layout.
PDF to TextNEW
Extract all text from a PDF into a plain .txt file, page by page. Fast, free and private: the PDF is processed in your browser.
Compress PDFNEW
Reduce PDF file size for email and uploads. Choose lossless optimization or strong compression for scanned and image-heavy PDFs. Free and private.
Organize PDFNEW
Rearrange PDF pages by drag and drop, rotate individual pages, delete pages and reverse the order, with page thumbnails. Free, in your browser.
Sign PDFNEW
Sign PDF documents online: draw, type or upload your signature, place it anywhere, and add your name and date. Free, no account, files stay private.
Add Text to PDFNEW
Type text anywhere on a PDF: fill in forms, add notes, names, dates and check marks. Choose font, size and color. Free and private.
Text Tools
54 tools
Word Counter
Count words, characters, sentences, paragraphs and reading time instantly. Free online word and character counter.
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case and more.
Password Generator
Generate strong, random passwords with a chosen length, symbols and numbers. Uses cryptographically secure randomness. Nothing is stored.
Random Word Generator
Generate random English words for games, brainstorming, passwords and creative writing. Choose the count and length.
Upside Down Text
Flip text upside down (ʇxǝʇ uʍop ǝpısdn) for social media, bios and messages. Copy and paste anywhere.
Reverse Text
Reverse a string, the word order, or each word's letters. Unicode- and emoji-safe. Free online text reverser.
String to Hex
Convert text to hexadecimal (UTF-8 bytes). Choose the separator and case. Free online text to hex converter.
Hex to String
Decode hexadecimal values to readable text (UTF-8). Accepts spaces, 0x prefixes and other separators.
QR Code Generators
8 tools
QR Code ScannerNEW
Scan QR codes with your camera or from an image or screenshot. Reads links, Wi-Fi, contacts and text privately in your browser. No app needed.
URL QR Code
Create a QR code for any website link. Customize colors, dot style and logo, then download PNG or SVG. Free and never expires.
vCard QR Code
Create a vCard QR code with your name, phone, email, company and website. Scanning saves you as a contact. Free.
Email QR Code
Create a QR code that opens a pre-filled email with the recipient, subject and body. Free, customizable and downloadable.
Phone QR Code
Create a QR code that dials a phone number when scanned. Free, customizable, PNG and SVG download.
WhatsApp QR Code
Create a QR code that opens a WhatsApp chat with your number and an optional pre-filled message. Free.
WiFi QR CodeNEW
Create a QR code that connects phones to your WiFi network without typing the password. Supports WPA/WPA2/WPA3 and WEP.
Text QR CodeNEW
Encode any plain text in a QR code. Customize and download as PNG or SVG. Free and works offline once loaded.
Calculators
40 tools
Scientific CalculatorNEW
Free online scientific calculator with trig (degrees and radians), logs, powers, roots, factorials, π and e. Type or tap, with history and keyboard support.
Percentage CalculatorNEW
Calculate percentages instantly: X% of Y, what percent X is of Y, percentage change between two values, and increasing or decreasing by a percentage.
Fraction CalculatorNEW
Add, subtract, multiply and divide fractions and mixed numbers. Results are simplified automatically and shown as a fraction, mixed number, decimal and percent.
Ratio CalculatorNEW
Simplify ratios like 1920:1080 to 16:9, and solve proportions (A:B = C:x) to find a missing value. Works with decimals and three-part ratios.
Average CalculatorNEW
Find the mean, median, mode, range, minimum, maximum and geometric mean of a list of numbers. Paste numbers separated by commas, spaces or lines.
Standard Deviation CalculatorNEW
Calculate sample or population standard deviation and variance for a data set, plus the mean, sum of squares and coefficient of variation.
Rounding CalculatorNEW
Round numbers to decimal places, the nearest 10, 100 or 0.05, or significant figures. Choose standard, banker's, up, down or truncate rounding.
Unit ConverterNEW
Convert length, weight, temperature, volume, area, speed, data storage, time, pressure and energy units instantly. See the value in every unit at once.
SEO Tools
5 tools
Meta Tag CheckerNEW
Check any page's title, meta description, canonical, robots, Open Graph, Twitter cards, headings and structured data. See Google and social previews with fixes.
Meta Tag GeneratorNEW
Generate HTML meta tags for SEO and social sharing: title, description, canonical, robots, Open Graph and X (Twitter) cards, with live Google and share previews.
Robots.txt GeneratorNEW
Create a robots.txt file in seconds: disallow paths, add your sitemap, and allow or block Googlebot, Bingbot and AI crawlers like GPTBot and ClaudeBot.
Robots.txt TesterNEW
Test whether Googlebot, Bingbot or AI crawlers can crawl your URLs. Fetch any site's robots.txt or paste your own and see the exact matching rule.
XML Sitemap GeneratorNEW
Generate an XML sitemap by crawling your website (up to 500 pages) or from a list of URLs. Respects robots.txt and noindex. Download sitemap.xml instantly.
Everyday Utilities
10 tools
Spin the WheelNEW
Spin a wheel to pick a random name, winner or choice. Add your own entries, shuffle, and remove winners. Fair, free and works on any device.
Random Number GeneratorNEW
Generate random numbers in any range, one or many at once, with or without duplicates. Uses a cryptographically secure generator. Free and instant.
Coin FlipNEW
Flip a virtual coin to get heads or tails with a 50/50 chance. Animated coin toss with a running tally and history of results.
Dice RollerNEW
Roll one to ten virtual dice with 4, 6, 8, 10, 12, 20 or 100 sides. See each die and the total. Perfect for board games and tabletop RPGs.
StopwatchNEW
A free online stopwatch with lap times, best and worst laps, and keyboard shortcuts. Accurate to the hundredth of a second, even in background tabs.
Online TimerNEW
Set a countdown timer for any number of hours, minutes and seconds, with one-click presets and an alarm sound. Free kitchen, study and workout timer.
Typing Speed TestNEW
Test your typing speed in words per minute (WPM) and accuracy with 15-second to 2-minute tests. Live error highlighting and instant results.
Online NotepadNEW
A simple online notepad that saves your notes automatically in your browser. Multiple notes, word count, open and download .txt files. No sign-up.
Private by design
JSON, text, QR and most image and PDF tools run in your browser. Your files never leave your device.
Instant results
No queues and no waiting. Results update as you type, even for large files.
Free, no sign-up
Every tool is free to use without an account. Sign in only if you want premium features.
Frequently asked questions
Is XUtilHub really free?
Yes. All tools are free to use without an account. Optional premium plans remove ads and raise limits for server-side conversions.
Are my files safe?
Most tools run entirely in your browser, so nothing is uploaded. The few conversions that need a server (such as Word ↔ PDF) delete files immediately after processing.
Do the tools work on mobile?
Yes. Every tool works on phones, tablets and desktops in any modern browser.