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273 apps · Showing 1–96

Developer Tools: Capture & Preview

Website · CreateAbove-the-Fold ScreenshotSave the first screen visitors see before they scroll.Website · CreateCSS-Free Website PreviewSee the page structure without its style sheets.Website · CreateCustom Viewport ScreenshotChoose an exact browser width and height for the screenshot.Website · CreateDark Mode Website ScreenshotAsk the page for its dark colour scheme and capture the result.Website · CreateForced Colours Website PreviewSee how the page looks with system forced colours.Website · CreateFull Page ScreenshotCapture the page from top to bottom, up to a safe height.Website · CreateHigh-DPI Website ScreenshotCapture a sharper two-times pixel density image.Website · CreateImage-Free Website PreviewSee whether the page still makes sense when images do not load.Website · CreateJavaScript-Off Website ScreenshotSee what the page shows when JavaScript is turned off.Website · CreateLight and Dark Screenshot ComparisonCapture the same page in light and dark colour schemes.Website · CreateLight Mode Website ScreenshotAsk the page for its light colour scheme and capture the result.Website · CreateMobile Landscape ScreenshotCapture a wide phone view for menus, games, and videos.Website · CreateMobile Website ScreenshotSee a public page in a 390 pixel phone view.Website · CreatePrint Layout ScreenshotPreview the page with print styles before making a PDF.Website · CreateReduced Motion Website PreviewSee the page with reduced motion turned on.Website · CreateResponsive Screenshot PackCapture desktop, tablet, and phone views in one run.Website · CreateTablet Website ScreenshotSee a public page in a roomy tablet view.Website · CreateWeb Page Quality SnapshotOpen a public page and get a clear screenshot with its main quality facts.Website · CreateWeb Page to PDFTurn a public web page into a clean PDF with backgrounds.Website · CreateWide Desktop ScreenshotCapture a 1600 pixel desktop view.

Developer Tools: Errors & Network

Website · CheckDownload Link InventoryFind links that look like file downloads without clicking them.Website · CheckFailed Web Request CheckerFind network failures and HTTP error responses seen while the page loads.Website · CheckJavaScript Console Error CheckerOpen the page and collect browser console errors and warnings.Website · CheckPage Performance Timing SnapshotShow browser navigation, paint, and content timing from one page load.Website · CheckThird-Party Host InventoryList outside hosts contacted while the page loads.Website · CheckWeb Font InventoryList font files requested and font families used on the page.Website · CheckWeb Page DOM Size CheckerCount page elements and show the deepest nesting found.Website · CheckWeb Page Network Request SummaryCount page requests by type and host.Website · CheckWeb Page Redirect Chain CheckerList each page URL followed before the final page opened.Website · CheckWeb Page Resource Weight EstimateEstimate transferred bytes reported by the browser for this page load.

Developer Tools: Accessibility & Quality

Website · CheckARIA Accessibility SnapshotCreate a text view of the page accessibility tree.Website · CheckBrowser Language Website PreviewOpen the page with a browser language such as French Canada.Website · CheckTime Zone Website PreviewOpen the page in another time zone and capture what it shows.Website · CheckWeb Page Scroll Size CheckerMeasure the full page width and height and flag sideways scrolling.

Developer Tools: Content & Structure

Website · CheckCanonical URL CheckerCheck whether the page names one clear canonical URL.Website · CheckFavicon and Icon InspectorFind favicons, touch icons, and web app icons named by the page.Website · CheckHeading Outline ExtractorList the H1 to H6 headings in page order.Website · CheckPage Language CheckerCheck the page language and direction settings.Website · CheckPage Title and Description CheckerCheck the page title and search description length.Website · CheckStructured Data ExtractorFind JSON-LD blocks and show their main schema types.Website · CheckWeb Page Control InventoryList buttons, inputs, selects, and text areas with their labels.Website · CheckWeb Page Form InventoryList forms, methods, actions, and control counts.Website · CheckWeb Page Image InventoryList images with alt text, size, and loading style.Website · CheckWeb Page Landmark InventoryCount headers, navigation, main areas, asides, and footers.Website · CheckWeb Page Link InventoryList page links and show which ones leave the website.Website · CheckWeb Page Metadata ExtractorCollect the title, description, language, canonical link, and viewport settings.Website · CheckWeb Page Table InventoryList each table with its caption, row count, and column count.Website · CheckWeb Page Text ExtractorPull out the visible words from a public page.Website · CheckWebsite Technology Hint ScannerFind public clues for common site builders and front-end tools.

Developer Tools: Format & Encode

Base64 · EncodeBase64 Encoder & DecoderEncode Unicode text or files to Base64, decode Base64 safely, and switch to URL-safe output when needed.JSON · FormatJSON Formatter & ValidatorFormat, minify, sort, repair, and inspect JSON with clear line-and-column errors and a searchable tree view.URL · EncodeURL Encoder & DecoderEncode or decode a full URL, one query value, or form data, then inspect every query parameter in a readable table.

Developer Tools: Format & Validate

XML · FormatXML FormatterAdd clean spacing and line breaks to messy XML without sending it anywhere.XML · FormatXML MinifierMake a smaller XML copy by removing display-only spaces and line breaks.XML · ValidateXML ValidatorCheck tags, quotes, and closing marks, then get a short message that points to the problem.

Developer Tools: Convert & Clean

XML · ConvertJSON to XML ConverterTurn a JSON object into clean XML, including attributes marked with @_ and text marked with #text.XML · FormatXML Namespace CleanerRemove prefixes such as store: and meta: to make a simpler XML copy for basic tools.XML · ConvertXML to JSON ConverterConvert elements and attributes into JSON that is easy to read, copy, and use in code.

Developer Tools: Explore & Extract

XML · ExtractXML Attribute ExtractorPull attribute names and values into a CSV table with the path to each element.XML · ViewXML Element FinderSearch an XML file by element name or path and list each matching value and attribute.XML · ViewXML StatisticsSee element, attribute, text, depth, and repeated-name totals in one small report.XML · ExtractXML Text ExtractorList the text inside XML elements with a clear path showing where each line came from.XML · ViewXML Tree ViewerTurn nested XML into a simple indented outline with element names, attributes, and short text.

Developer Tools: IDs & Tokens

JWT · DecodeJWT Decoder & InspectorRead JWT headers and claims, check expiry and issued times, and optionally verify HS256 signatures in your browser.UUID · GenerateUUID GeneratorCreate one or hundreds of secure UUID v4 or time-sortable UUID v7 values, then validate and inspect any UUID.

Developer Tools: Time & Automation

Cron · GenerateCron Expression GeneratorBuild or explain a standard five-part cron schedule, validate each field, and preview the next run times in your timezone.Unix · ConvertUnix Timestamp ConverterConvert Unix seconds, milliseconds, microseconds, or nanoseconds to readable dates and turn any local date back into a timestamp.

Developer Tools: Test & Compare

Regex · TestRegular Expression TesterTest JavaScript regular expressions live, highlight every match, inspect capture groups, and preview replacements.Text · CompareText Diff CheckerCompare text or code line by line, ignore unimportant spacing or case changes, and export a familiar unified diff.

Developer Tools: Diff & Patch

CSS · CompareCSS Diff CheckerCompare two CSS files by selector, property, value, punctuation, and spacing in one clear view.JSON · CompareJSON Diff CheckerCompare two JSON files by value, even when their keys are in a different order, and see every added or removed part.Patch · EditPatch ApplierApply a unified patch to one text file and preview the finished file before you save it.Patch · ViewPatch InspectorInspect a unified or Git patch and count its files, hunks, added lines, and removed lines without changing anything.Patch · GenerateUnified Patch MakerTurn the old and new version of a text file into a standard unified patch for Git and other tools.Text · CompareWord Diff CheckerCompare two paragraphs word by word and spot small edits that a line comparison can miss.

Developer Tools: Mock Data

JSON & CSV · GenerateCustom Fake Dataset GeneratorName your columns, pick simple fake field types, and create a repeatable JSON or CSV dataset.JSON & CSV · GenerateFake Address GeneratorCreate localized street addresses, cities, regions, postal codes, countries, and optional map coordinates.JSON & CSV · GenerateFake Appointment Dataset GeneratorCreate safe sample appointments with clients, services, staff, times, lengths, prices, and status.JSON & CSV · GenerateFake Book Metadata GeneratorCreate sample book titles, authors, genres, publishers, formats, series, ISBNs, and optional summaries.JSON & CSV · GenerateFake Company GeneratorCreate made-up company names, taglines, industries, websites, emails, and phone numbers.JSON & CSV · GenerateFake Contact List GeneratorBuild a sample contact list with names, emails, phone numbers, companies, and optional addresses.JSON & CSV · GenerateFake Food Menu GeneratorCreate sample dishes with descriptions, food styles, ingredients, spice notes, prices, and availability.JSON & CSV · GenerateFake Order GeneratorCreate nested test orders with customers, line items, quantities, totals, dates, and order status.JSON & CSV · GenerateFake Person GeneratorCreate realistic names, birthdays, jobs, and short bios for tests, demos, and practice projects.JSON & CSV · GenerateFake Product Catalog GeneratorCreate sample products with SKUs, names, departments, descriptions, materials, colours, and prices.JSON & CSV · GenerateFake Vehicle Dataset GeneratorCreate sample vehicles with makers, models, types, fuel, colours, and optional VIN and plate values.JSON & CSV · GenerateInternet Test Data GeneratorCreate sample usernames, emails, domains, URLs, IP addresses, user agents, and optional passwords.JSON & CSV · GenerateLocalized Fake Data SamplerCompare names, addresses, phone numbers, companies, and products from two language or country settings.JSON & CSV · GenerateMock API Response GeneratorCreate a realistic users, products, or orders API response with optional page details.SQL · GenerateSQL Seed Data GeneratorCreate safe INSERT statements for sample users, products, or companies in PostgreSQL, MySQL, or SQLite.JSON & CSV · GenerateTest Payment Data GeneratorCreate clearly fake card and bank fields for form tests. These values are not for real payments.

Developer Tools: Architecture & Documentation

Project JSON / HTML / Mermaid / SVG / PNG / ZIP · ConvertArchitecture Documentation BuilderMake a system architecture document with Mermaid diagrams and notes. Download one HTML guide or a bundle of diagrams.

Developer Tools: Build Templates

Liquid · GenerateCustomer Greeting Liquid Template TesterPreview a greeting with names, customer tags, and a safe fallback.Liquid · GenerateInvoice Line Liquid Template TesterLoop through invoice items and show quantity, price, and a simple line total.Liquid · GenerateJSON to Liquid RendererPaste any JSON object and render its fields through a bounded Liquid template.Liquid · GenerateLiquid Batch Preview MakerPreview the same Liquid template for up to fifty records in a JSON customers array.