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Website & DNS Tools

19 tools

Authorized Port Range Checker Check a TCP port range on a host you own or are authorized to test.Authorized Single Port Checker Check whether one TCP port is reachable on a host you own or are authorized to test.DKIM Checker Check a DKIM selector host with DNS lookup.DMARC Checker Check a domain's DMARC TXT record with local DNS lookups only.DNS Lookup Resolve hostnames to addresses and reverse DNS using standard lookup APIs.DNS Propagation Checker Run safe DNS lookups for a domain without external APIs.Email Deliverability Tester Review public MX, SPF, DKIM, and DMARC readiness signals for a domain without sending email.HTTP Header Checker Fetch HTTP response headers without using a third-party API.IP Geolocation Lookup Resolve IP registry data, reverse DNS, and WHOIS-based location hints fully offline from your own request path.MX Record Checker Check mail-related DNS information for a domain.My IP Address Show the visitor client IP using Cloudflare and forwarded proxy headers without using external services.Ping Tool Send ICMP pings and measure latency, packet loss, and jitter.Redirect Checker Follow redirect chains and inspect every hop.Response Time Checker Measure how long a request takes from send to first response.SPF Record Checker Check SPF-related DNS results for a domain.SSL Checker Inspect TLS certificate details, chain status, and protocol information.SSL Expiry Reminder Inspect certificate expiry for an authorized HTTPS host.Website Status Checker Check whether a website responds successfully and capture timing plus status code.WHOIS Lookup Query WHOIS servers over the standard TCP protocol and show the raw registry response.

Web Tools

4 tools

Local URL Shortener Create browser-local short labels for long URLs without implying a durable public short-link service.Temporary Email-Style Alias Generator Generate email-style aliases for placeholders, testing, and form drafts.Webhook Inbox Capture, inspect, and replay incoming webhooks with a private inbox URL and per-inbox response settings.YouTube Thumbnail Previewer Preview public YouTube thumbnail image sizes with copyright and permission reminders.

Security Tools

15 tools

API Key Generator Generate random API-key style tokens locally.Certificate Decoder Inspect PEM boundaries and certificate/key text safely.Data Policy Template Generator Create a data handling policy draft template from guided fields for later legal and operational review.Encryption Key Strength Analyzer Review key length and variety guidance.Encryption Studio Encode, decrypt, and encrypt common text transforms with local cryptography tools.File Checksum Calculator Calculate MD5/SHA checksums of text.HMAC Generator Generate HMAC-SHA256 from a message and secret.OAuth Token Debugger Decode OAuth bearer tokens locally and inspect claims, scopes, issuer, audience, and expiry.Password Generator Generate strong passwords.Password Strength Checker Check password strength.Public Key Inspector Inspect public key text length and PEM markers.Random String Generator Generate random strings/tokens.Secure Token Generator Generate stronger random tokens with advanced entropy.SSH Key Studio Generate and inspect SSH keys in a local workspace using built-in cryptography.Web Pentest Studio Run an authorized, non-destructive website security review for headers, cookies, forms, TLS, CORS, exposed paths, metadata files, and safe reflection signals.

Money Format Tools

46 tools

Games

8 tools

Connect Four Drop discs into columns and try to connect four before the local bot.Metro Spark Runner by DaivVerse Sprint across a suspended neon ropeway, jump barriers, slide under gates, collect spark cores, build combos, and chase your high score in an original DaivVerse runner game.Neon Drift Rush by DaivVerse Race through a glowing highway, dodge traffic, collect energy orbs, build combos, and chase your high score in an original DaivVerse racing game.Original Browser Games Word Dash Adventure, Neon Drift Rush, Metro Spark Runner, Tic Tac Toe, Connect Four, Rock Paper Scissors, and Typing Speed Game.Rock Paper Scissors Play fast rock paper scissors rounds with local streak tracking.Tic Tac Toe Play a quick X and O board game against a simple local bot.Typing Speed Game Type short prompts and track words per minute and accuracy locally.Word Dash Adventure Run, jump, slide, and collect correct English words in an original DaivVerse word runner game.

PDF Tools

26 tools

Add Page Numbers Stamp page numbers into the footer area.Excel to PDF Converter Render workbook text into a PDF.HTML to PDF Converter Convert HTML content into a PDF.Image to PDF Converter Combine one or more images into a PDF.Markdown to PDF Converter Convert Markdown into a PDF.PDF Annotation Tool Add a note-style annotation overlay.PDF Compressor Reduce PDF size with best-effort stream rebuilding.PDF Flattener Resave imported pages to flatten content.PDF Merger Merge multiple PDFs into one file.PDF Metadata Remover Strip obvious metadata hints and trailer fields.PDF Page Extractor Extract selected pages into a new PDF.PDF Page Remover Remove selected pages from a PDF.PDF Page Reorderer Change page order in a PDF.PDF Password Opener for Owned Files Open a password-protected PDF only when you know the password and own or are authorized to access the file.PDF Password Protector Encrypt a PDF with passwords.PDF Rotator Rotate selected pages in a PDF.PDF Signature Tool Stamp a signature-style overlay.PDF Splitter Split one PDF into individual page PDFs inside a ZIP archive.PDF to Excel Converter Extract PDF page text into an XLSX sheet.PDF to Image Converter Export each PDF page as an image archive.PDF to PowerPoint Converter Turn PDF pages into a slide deck draft.PDF to Word Converter Extract text from PDF pages into a DOCX draft.PDF Tools Temporary PDF workspace for upload, validation, page organization, and file conversion.PDF Watermark Adder Stamp text across each PDF page.PPT to PDF Converter Render slide text into a PDF.Word to PDF Converter Render DOCX text into a PDF.

Image Tools

7 tools

Background Remover Studio Remove backgrounds locally, replace them with solid, gradient, or image fills, and export single or batch cutouts as PNG or JPEG.Base64 to Image Preview Base64 image strings and data URLs instantly.Image Background Editor Remove simple backgrounds, replace background color, crop, and download PNG.Image Enhancer Apply best-effort browser-side enhancement controls such as upscale and sharpen.Image to Base64 Convert PNG, JPEG, GIF, or WebP files to Base64 data URLs.Image to Text Extract text from images with OCR.Passport-Size Photo Layout Helper Prepare common photo layout sizes from an uploaded portrait image.

Code & Data

46 tools

.env Validator Validate .env key/value lines and highlight malformed entries.API Documentation PDF Generator Generate beautiful API documentation PDFs from Swagger and OpenAPI URLs, including endpoint summaries, request and response models, authentication details, quality warnings, and developer exports.API Workbench Send requests, inspect responses, and generate cURL, fetch, and HttpClient snippets from any endpoint.Base64 Encode/Decode Encode/decode Base64.Chmod Calculator Unix file permissions.Config Diff & Sync Compare .env, JSON, YAML, and INI configs by key, highlight missing or mismatched values, and create a synced config patch.Cron Expression Builder Build cron expressions.CSV to SQL Generator Generate SQL INSERT statements from CSV headers and rows.CSV Viewer Preview CSV rows in a table before copying or cleaning.Diff Checker Compare two texts.Docker Compose Validator Check for common Docker Compose structure such as services.GraphQL Builder Build a GraphQL query from operation name, fields, variables, and arguments.GraphQL Query Formatter Format GraphQL query text for easier reading.Hash Generator Generate MD5, SHA1, SHA256, SHA512.HTML Entity Encode/Decode Encode/decode HTML entities.HTML Formatter Format HTML code.HTTP Status Codes HTTP status code reference.INI Deep Editor Inspect INI sections, key/value structure, duplicate keys, comments, and normalized text.INI Formatter Clean and format INI sections and key/value lines.JS Minifier Minify JavaScript.JSON Schema Validator Parse JSON and basic schema syntax for quick validation checks.JSON to Data Model Generate a typed data model from JSON.JSONPath Tester Test simple JSONPath-style property access against JSON.JWT Decoder Decode JWT header and payload without sending data anywhere.JWT Expiry Checker Decode a JWT payload and show the exp claim without sending it elsewhere.Markdown Table Generator Convert CSV rows into a Markdown table.Mermaid Studio Validate Mermaid diagrams, fix common syntax errors, render a polished local preview, and export SVG, PNG, or PDF without any external service.OpenAPI Validator Validate common OpenAPI or Swagger structure before sharing a specification.OpenAPI Viewer Preview and sanity-check OpenAPI or Swagger text.Postman/Insomnia Collection Analyzer Analyze exported Postman or Insomnia collection JSON, summarize requests, detect variables, and create reviewable cURL drafts without calling endpoints.Regex Tester Test regular expressions.SQL Formatter Format SQL queries.Timestamp Converter Convert Unix timestamps.Timestamp Diff Compare two timestamps and see the exact elapsed time.TOML Deep Editor Inspect TOML sections, key/value structure, duplicate keys, unfinished strings, and normalized text.TOML Formatter Format TOML-style key/value configuration text.ULID Generator Generate time-sortable ULID-style identifiers locally.URL Encode/Decode URL encode/decode text.User Agent Parser Parse user agent strings.UUID Generator Generate UUIDs/GUIDs.UUID v7 Generator Generate timestamp-based UUID v7 identifiers locally.UUID Validator Validate UUID/GUID format, version, and variant.XML to JSON Converter Convert simple XML documents to JSON using local XML parsing.YAML Deep Editor Inspect YAML configuration structure, key paths, duplicate keys, indentation hints, and normalized text.YAML Formatter Format simple YAML by normalizing whitespace and indentation-friendly line breaks.YAML Validator Validate basic YAML key/value and list structure without external services.

JSON & Data

7 tools

JSON Diff Compare two JSON documents and highlight shape/value changes.JSON Escape/Unescape Escape/unescape JSON strings.JSON Formatter Format and beautify JSON.JSON Minifier Minify JSON.JSON to CSV Convert JSON to CSV.JSON to YAML Convert JSON to YAML.JSON Validator Validate JSON syntax.

Encoding Tools

3 tools

ASCII Table ASCII character reference.QR Code Generator Generate QR codes.Unicode Lookup Look up Unicode characters.

Text Tools

35 tools

Add Line Numbers Add numbers to each line.Bulk Text Formatter Trim and normalize pasted lines in bulk.Case Converter Convert text to uppercase, lowercase, title, camelCase, snake_case.CSV Cleaner Clean CSV whitespace and normalize rows.Data Deduplicator Advanced Remove duplicate rows with case-insensitive matching.Domain Name Generator Generate domain name ideas from a phrase.Extract Emails Extract emails from text.Extract URLs Extract URLs from text.Find and Replace Find and replace with regex.Join Lines Join lines with separator.JSON Cleaner Parse and pretty-print JSON for cleanup.Lorem Ipsum Generator Generate placeholder text.Markdown to HTML Convert Markdown to HTML.Morse Code Converter Convert text to Morse code.Number to Words Convert numbers to words.Palindrome Checker Check if text is a palindrome.Password List Generator Generate a local list of random demo passwords.Remove Duplicate Lines Remove duplicate lines.Remove Empty Lines Remove blank lines.Reverse Text Reverse characters or words.ROT13 Encoder Encode/decode ROT13.Slug Generator Advanced Generate clean slugs with stricter normalization rules.Sort Lines Sort lines alphabetically, by length, numerically.Split Text Split text by delimiter.Text Cleanup Studio Trim, normalize, slugify, and reformat text in one browser-local workspace.Text Repeater Repeat text with separator.Text Summarizer Summarize long text into key points and a shorter version.Text to Binary Convert text to binary and back.Text to Hex Convert text to hex and back.Text to Slug Convert text to URL slug.Text Truncator Truncate text with ellipsis.Username Generator Generate simple username ideas from a base phrase.Whitespace Remover Remove extra whitespace.Word Counter Count words, characters, sentences, paragraphs with reading time.Word Frequency Counter Count word occurrences.

Smart Generators

1 tools

AI Prompt Generator Create structured prompts for writing, code, learning, business, and research workflows using guided templates. No API key required.

SEO & Website

3 tools

HTTP Security Headers Checker Review common response security headers for websites you own or are authorized to inspect.Robots.txt Generator Create a reviewable robots.txt draft for public crawler rules.Sitemap Validator Check sitemap URL lists for basic XML structure and crawl-readiness issues.

Math Tools

13 tools

Average Calculator Calculate mean, median, mode.Basic Calculator A fast daily calculator with keyboard-friendly operations.Factorial Calculator Calculate factorial.Fibonacci Generator Generate Fibonacci sequence.GCD & LCM Calculator Calculate GCD and LCM.Number Base Converter Convert binary/octal/decimal/hex.Percentage Calculator Calculate percentages.Power & Root Calculator Calculate powers and roots.Prime Number Checker Check if prime.Quadratic Solver Solve ax²+bx+c=0.Random Number Generator Generate random numbers.Ratio Calculator Calculate and simplify ratios.Roman Numeral Converter Convert Roman numerals.

Daily Utilities

11 tools

Age in Days Calculator Calculate age in days from a birth date.Day of Week Calculator Find the weekday for any date.Internet Speed Test Measure a local browser download estimate without external services.Keyboard Tester Capture key presses and show the keys you press live.Microphone Test Check mic access and display live input activity.Paper Size Reference Reference chart for A, B, and US paper sizes.Recipe Unit Converter Convert cups, tablespoons, teaspoons, milliliters, and grams for cooking.Tip Calculator (Restaurant) Calculate tip, tax, and split bills for dining out.Webcam Test Preview the webcam stream and verify camera access.World Clock View multiple cities side by side with live local time.Year Progress Bar Show how much of the current year has passed.

Date & Time

8 tools

Age Calculator Calculate exact age.Date Add/Subtract Add days/months to a date.Date Difference Days between dates.Days Until Count days until an event.Leap Year Checker Check if leap year.Stopwatch Stopwatch with lap times.Timezone Converter Convert between timezones.Week Number Find week number for a date.

Productivity

3 tools

Live Clock Running digital and analog clock with date and timezone.Pomodoro Timer Focus timer with work, short break, and long break sessions.Quick Notes A lightweight private scratchpad with word and character stats.

Color

4 tools

Color Picker Pick colors, HEX/RGB/HSL.Contrast Checker WCAG contrast checker.Gradient Generator Create CSS gradients.Palette Generator Generate color palettes.

CSS

5 tools

Border Radius Generator Generate CSS border-radius.Box Shadow Generator Generate CSS box-shadow.CSS Gradient Builder Build CSS gradients visually.Flexbox Playground Visualize flexbox.Text Shadow Generator Generate CSS text-shadow.

Converters

10 tools

Area Converter Convert area units including square meters, hectares, acres, square feet, and square miles.Data Storage Converter Convert data units including bits, bytes, kilobytes, megabytes, gigabytes, and terabytes.Energy Converter Convert energy units including joules, kilojoules, calories, watt-hours, and BTU.Length Converter Convert length units including meters, kilometers, miles, yards, feet, inches, and nautical miles.Pressure Converter Convert pressure units including pascal, bar, psi, atmosphere, and torr.Speed Converter Convert speed units including meters per second, kilometers per hour, miles per hour, knots, and feet per second.Temperature Converter Convert Celsius, Fahrenheit, and Kelvin values side by side.Time Converter Convert time units including seconds, minutes, hours, days, weeks, months, and years.Volume Converter Convert volume units including liters, milliliters, cubic meters, gallons, quarts, and cups.Weight Converter Convert weight and mass units including kilograms, grams, pounds, ounces, and tons.

More Tools

12 tools

Coin Flipper Flip a coin.Color of the Day Unique daily color.Countdown Timer Countdown to any date.Decision Maker Random choice picker.Dice Roller Roll dice.Fake Data Generator Generate fake names, emails.Fuel Cost Calculator Estimate trip fuel cost by distance, mileage, and fuel price.NATO Phonetic Alphabet Convert to NATO phonetic.Random List Picker Pick random items.Screen Info Display screen resolution.Tip Calculator Calculate tip, total bill, and per-person split.Typing Speed Test Test typing speed.