All tools

159 free tools. Most run 100% in your browser.

PDF Tools

Merge PDFCombine multiple PDF files into a single document in custom order.Split PDFExtract selected pages or page ranges from a PDF file.Compress PDFReduce PDF file size with adjustable optimization levels.PDF to WordConvert PDF documents into editable Microsoft Word DOCX files.Word to PDFConvert DOC/DOCX files into standard PDF documents.PDF to JPGExtract PDF pages as individual high-quality JPG images.JPG to PDFConvert one or multiple images into a structured PDF document.Sign PDFAdd drawn, typed, or uploaded digital signatures to PDFs.Edit PDFAdd text, white-out and highlights to a PDF.Watermark PDFAdd customizable text or image watermarks to PDF pages.Rotate PDFRotate specific pages or all pages in a PDF document.HTML to PDFRender pasted HTML markup directly into a PDF document.Organize PDFRearrange, delete, duplicate, or insert pages in a PDF.Page NumbersAdd custom sequential page numbering to headers or footers.OCR PDFExtract editable text from scanned PDF documents using OCR.Compare PDFCompare text contents of two PDFs and highlight differences.Crop PDFTrim page margins or crop specific regions of PDF documents.PDF FormsFill out interactive text inputs, checkboxes, and buttons inside PDFs.PDF SummarizerSummarise a PDF's key points in your browser, with an optional AI summary.PDF to MarkdownConvert PDF text layouts into structured Markdown text.

Image Tools

Image to ASCII Art ConverterConvert local photos and logos into custom ASCII character text art matrix.Image ResizerResize image pixel dimensions while locking target aspect ratios.Image CompressorCompress image file sizes with quality control (JPEG, PNG, WebP).Image CropperCrop rectangular sub-regions of images with preset aspect ratios.Image RotationRotate images by 90°, 180°, or 270° degrees.Image Flip (Horiz/Vert)Mirror image vertically or horizontally.Image to Base64Convert local image file into data URI Base64 string.Base64 to ImageDecode Base64 string back into displayable PNG/JPG photo.Image Format ConverterConvert between PNG, JPG, WebP, and GIF image formats.Favicon GeneratorCreate 16x16, 32x32, and 64x64 favicons for web sites.QR Code GeneratorGenerate customizable QR codes for links, text, or Wi-Fi.Barcode GeneratorCreate CODE128, EAN13, and UPC barcodes.Image WatermarkOverlay text or logo watermark protection onto photos.Image FilterApply grayscale, sepia, blur, contrast, and brightness filters.Photo Collage MakerCombine multiple photos into 2x2 or 3x3 grid collages.Batch Image ConverterConvert batches of multiple images simultaneously.SVG to PNG ConverterRender vector SVG graphics into raster PNG images.PNG to SVG (Tracing)Trace raster PNG contours into scalable vector SVG paths.Gradient GeneratorDesign multi-color CSS linear and radial gradients.Color Picker & ExtractorPick and extract exact RGB / HEX color values from any photo.Batch Rename ImagesGenerate standardized sequential filenames for photo collections.AliExpress Image ExtractorExtract and download all product images from any AliExpress URL.Uses server AI Prompt Enhancer StudioTransform simple ideas into hyper-detailed Midjourney, ChatGPT, DALL-E 3 & SDXL prompts.Background Remover (solid backgrounds)Remove plain, solid-colour backgrounds from photos and export a transparent PNG.

Text Tools

Word CounterCounts words, characters, sentences, paragraphs, and reading time.Text to LowercaseConvert all uppercase letters in string to lowercase.Text to UppercaseConvert all lowercase letters in string to uppercase.Text to Title CaseCapitalize the first letter of each word in text.Reverse TextReverse the exact character order of text.Remove Extra SpacesStrip multiple consecutive spaces into single clean spaces.Remove Line BreaksRemove all newlines and join multi-line text into a single line.Copy to Clipboard HelperQuickly paste, format, and copy text back to clipboard with 1-click.JSON Formatter & MinifierFormat, validate, beautify or minify JSON with clear error messages.HTML BeautifierFormat messy HTML code with proper tag nesting and indentation.HTML MinifierRemove comments and extra spaces from HTML code.CSS FormatterFormat CSS stylesheet code cleanly.CSS MinifierCompress CSS by removing whitespace and comments.JavaScript BeautifierFormat JS scripts for clear code review.JavaScript MinifierReduce JS file payload size by stripping spaces and comments.XML FormatterPretty-print XML documents with structural tree hierarchy.YAML to JSONConvert YAML config files into JSON data objects.Duplicate Line RemoverFilter out duplicate lines from text list while retaining order.Sort LinesSort text lines alphabetically (A-Z or Z-A) or by length.Reverse LinesReverse the vertical order of lines in text.Add Line NumbersPrefix each line with sequential line numbers.Search and ReplaceFind target string patterns and replace across whole text.Regex TesterTest RegExp expressions against text with match highlights.Character EncodingConvert text between UTF-8, ASCII, Hex, Base64, and URL encoding.

Converters

Unit ConverterConvert length, weight, temperature, area, volume and speed units.Currency ConverterCalculate exchange values between major global currencies.Binary to DecimalConvert base-2 binary strings to base-10 decimal numbers.Decimal to BinaryConvert base-10 decimal numbers to base-2 binary.Hex to DecimalConvert hexadecimal base-16 numbers to decimal base-10.Decimal to HexConvert decimal base-10 numbers to hexadecimal base-16.Octal to DecimalConvert octal base-8 numbers to decimal base-10.Decimal to OctalConvert decimal base-10 numbers to octal base-8.Roman to ArabicConvert Roman numerals (MCMXCIV) to Arabic numbers (1994).Arabic to RomanConvert Arabic integers to Roman numeral representation.HTML to TextStrip HTML tags and extract plain body text.Text to HTMLEscape reserved special characters (&, <, >) for HTML display.Markdown to HTMLConvert Markdown syntax into clean formatted HTML code.HTML to MarkdownConvert HTML elements back to concise Markdown.JSON to CSVConvert JSON array of objects to CSV format.

Calculators

Calculator (Basic & Scientific)Basic arithmetic plus trigonometry, logarithms, powers and roots.Percentage CalculatorCalculate percentage values, ratio, and % increase/decrease.Tip CalculatorCalculate gratuity tip amounts and split bills per person.Loan & Mortgage CalculatorCalculate monthly loan or mortgage payments (EMI) and total interest.Simple Interest CalculatorCalculate non-compounding simple interest (SI = P*R*T / 100).Compound Interest CalculatorModel savings growth with periodic compounding interest.BMI CalculatorCalculate Body Mass Index and WHO weight category.Calorie & TDEE CalculatorCalculate Basal Metabolic Rate (BMR) and daily TDEE calories.Age CalculatorCalculate exact age in years, months, days, and birthday countdown.GPA CalculatorCalculate Grade Point Average on 4.0 scale.Average CalculatorCalculate the arithmetic mean average of numbers.Median CalculatorFind the exact median value in dataset.Standard DeviationCalculate variance and population standard deviation.Speed Distance TimeCalculate Speed, Distance, or Time with physics formulas.Discount CalculatorCalculate final sale price and savings from discount %.Margin & Markup CalculatorCalculate selling price, profit margin and markup percentage.Salary CalculatorConvert salary between hourly, daily, weekly, monthly and yearly pay.

Developer Tools

Apache .htpasswd Basic Auth GeneratorGenerate encrypted .htpasswd basic authentication entries (Bcrypt, SHA-1, MD5).SEO Meta Tag & OpenGraph Preview StudioGenerate SEO title tags, meta descriptions, OpenGraph, and Twitter Cards with real-time preview.cURL to Code ConverterConvert cURL shell commands into JavaScript Fetch or Python.SQL FormatterFormat and indent complex SQL database queries.Diff CheckerCompare two text files or code blocks line-by-line.IP Address ToolsValidate IPv4 / IPv6 addresses and calculate CIDR ranges.Timestamp ConverterConvert Unix epoch timestamps to ISO dates and vice versa.Cron Expression ParserExplain 5-part cron expressions in human language.JSON to TypeScriptGenerate TypeScript interfaces from a JSON sample.Border Radius GeneratorDesign CSS border-radius values visually and copy the code.Box Shadow GeneratorBuild CSS box-shadow effects with live preview and copy the code.Colour Contrast CheckerCheck text and background colours against WCAG AA/AAA contrast rules.CSS Flexbox & Grid PlaygroundExperiment with flexbox and grid layouts and copy the CSS.

Encoders & Decoders

Base64 Encode/DecodeEncode or decode Base64 strings and images.URL Encode/DecodeEncode or decode URL strings.HTML EntitiesEncode or decode HTML entities.JWT DecoderDecode and inspect JWT tokens.Base32 Encode/DecodeEncode or decode Base32 strings.Base58 Encode/DecodeEncode or decode Base58 strings.ROT13 / ROT47 CipherApply ROT13 and ROT47 ciphers to text.CRC32 ChecksumCalculate CRC32 checksums of text or files.Punycode ConverterConvert domains to and from Punycode.Quoted-PrintableEncode or decode quoted-printable text.

Generators

App Store & Play Store Screenshot BuilderDesign promotional App Store and Google Play Store screenshots with device mockups and headline captions.Social Media Post Mockup GeneratorCreate realistic preview mockups for Twitter, LinkedIn, Instagram, and Facebook posts.SVG Wave & Blob Divider StudioDesign custom SVG section dividers, waves, curves, and blobs with live SVG/CSS export.AI LinkedIn Post GeneratorCreate viral, high-converting LinkedIn posts with hooks, formatting, emojis, hashtags, and live feed preview.Uses server Password GeneratorGenerate cryptographically secure passwords with custom pools.Random Number GeneratorGenerate random integers within custom min/max bounds.UUID GeneratorGenerate v4 universally unique identifiers (UUIDs).Slug GeneratorConvert article titles into clean URL-friendly slugs.Hash Generator (MD5, SHA)Generate MD5, SHA-1, and SHA-256 cryptographic hashes.Color Palette GeneratorGenerate cohesive HSL/HEX color schemes.Lorem Ipsum GeneratorGenerate dummy placeholder text paragraphs.Fake Data GeneratorGenerate realistic mock names, emails, addresses, and phones.

Business Tools

eBay Niche Research & Competitor IntelligenceDiscover high-profit eBay product niches, 30-day sell-through rates, competitor pricing dominance, and keyword clouds.Uses server SaaS Interactive Pricing Table GeneratorDesign responsive SaaS pricing card tables with monthly/yearly billing toggles and copy HTML/CSS code.Invoice GeneratorCreate professional itemized invoices with total tax & download PDF.Receipt GeneratorCreate printable sales receipt receipts.Estimate TemplateCalculate project estimates based on labor hours and materials.Schedule / CalendarOrganize events, set reminders, and manage daily schedule.Project Time TrackerTrack work hours per project and calculate billable totals.Kanban BoardVisualize task status (To Do, In Progress, Done).Meeting SchedulerFind optimal meeting times across participant time zones.Break-Even CalculatorFind sales units required to cover fixed and variable costs.ROI CalculatorCalculate Return on Investment percentage and net gain.Expense TrackerTrack spending by category. Data stays in your browser.Global Brand & Trademark CheckerCheck brand name availability and trademark conflict risks globally.Uses server eCommerce Compliance AuditorAudit listing titles, descriptions, and images for policy compliance.Uses server

Utilities

To-Do ListOrganise tasks with priorities, tags and due dates. Saved in your browser.Pomodoro Timer25-minute productivity timer with short & long break sounds.StopwatchPrecision stopwatch timer with lap tracking.Alarm ClockSet sound alarms with custom snooze intervals.Note Taking AppWrite and save formatted notes with local browser storage.Weather AppLook up weather temperature, humidity, and forecasts.Uses server Bookmark ManagerSave and organize web links into searchable folders.Typing Speed TestMeasure your typing speed (WPM) and accuracy.QR Code ReaderScan or upload QR code images to extract encoded data.Bulk URL OpenerOpen a list of multiple URLs simultaneously in separate browser tabs.