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Product Families 9
Files PDF, Office, and file handoff workflows. 24 tools
Images Image compression, conversion, metadata, and visual utilities. 21 tools
Developer JSON, Docker, web, converters, markdown, and developer snippets. 143 tools
Data Structured data, barcodes, IDs, and validation workflows. 19 tools
Network CIDR, DNS, headers, URL, and public lookup workflows. 30 tools
Security Crypto, hashes, certificates, forensic triage, and safe snippets. 32 tools
Calculators Math, measurement, physics, finance, and unit calculators. 60 tools
Everyday Text, randomizers, QR, gaming, and practical utilities. 74 tools
Content SEO, writing, markdown, web previews, and publishing helpers. 57 tools
Tool Categories 18
JSON Tools Format, minify, compare, flatten, sort, inspect, and convert JSON in browser-local workflows. Developer Converters Convert text, binary, hex, ASCII, tables, Markdown, HTML, and number bases locally. Web Tools Parse URLs, build UTM links, inspect headers, clean HTML/CSS, and convert cURL snippets. Network Tools Calculate CIDR ranges, parse DNS records, inspect public DNS and registration data, and check remote headers with guarded network access. Crypto Tools Generate hashes, HMACs, JWT fixtures, password placeholders, certificate fingerprints, and encrypted text fixtures locally. Datetime Tools Convert timestamps, compare durations, inspect ISO weeks, shift time zones, and work with ICS snippets locally. Docker Tools Convert simple Docker run and Compose snippets into handoff-friendly container configuration. XML Tools Lint XML, test XPath expressions, transform snippets with XSLT, and format XML locally. Markdown Tools Convert Markdown, HTML, CSV tables, and plain text snippets for documentation workflows. Generators Generate ULIDs, UUIDs, Nanoids, tokens, PINs, passphrases, and test-only mnemonic phrases locally. Data Tools Normalize phone numbers, validate Luhn, IBAN, VAT, GTIN values, and search ISO country data locally. Barcode and QR Tools Generate QR payloads for contacts and WiFi, validate GTIN codes, and use existing QR/barcode utilities. Gaming Randomizers Roll dice, flip coins, pick cards, and use quick randomizers locally in the browser. Measurement Tools Convert units, calculate geographic distance, estimate disk capacity, and handle everyday measurements locally. Everyday Maths Tools Use percentage, BMI, unit, speed, storage, and distance calculators for quick everyday math. Physics Tools Convert engineering units, solve electrical formulas, decode resistor colors, and run browser-local engineering calculators. Forensic Tools Extract indicators, inspect hashes, decode forensic IDs, mask sensitive data, and normalize logs with browser-local triage helpers. Development Tools Use regex, cron, SQL, YAML, Base64, schema, slug, color, and CSS helpers without opening a heavy IDE workflow.
JSON Tools 13
JSON Formatter Format, validate, and copy readable JSON snippets JSON Minifier Minify JSON into compact browser-local output JSON Prettifier Prettify JSON with readable indentation and validation JSON to Schema Infer a simple JSON Schema from sample JSON data JSON Diff Compare two JSON snippets and list changed paths locally JSON Sorter Sort JSON object keys recursively for stable diffs and review JSON Flattener Flatten nested JSON into dot-path key value pairs JSON Unflattener Rebuild nested JSON from dot-path key value pairs JSON String Escape Escape text as a JSON string or unescape JSON string content JSON Path Extractor Extract values from JSON using simple dot paths NDJSON to JSON Convert newline-delimited JSON records into a JSON array JSON to Query String Convert flat JSON objects to URL query strings Query String to JSON Parse URL query strings into readable JSON objects
Text to Binary Convert text to UTF-8 binary byte groups locally Binary to Text Decode binary byte groups back into readable UTF-8 text Text to Hex Convert UTF-8 text to hexadecimal byte groups Hex to Text Decode hexadecimal byte groups into UTF-8 text Text to ASCII Codes Convert text characters to decimal character codes ASCII Codes to Text Decode decimal character codes into text Number Base Converter Convert numbers between binary, decimal, hexadecimal, and custom bases CSV to Markdown Table Convert CSV rows into a Markdown table Markdown Table to CSV Convert Markdown tables into CSV text HTML to Markdown Convert common HTML headings, links, emphasis, and paragraphs to Markdown Markdown to Plain Text Strip Markdown syntax into readable plain text HTML Table Generator Convert CSV rows into a simple HTML table
Web Tools 13
URL Parser Parse URL components, query parameters, hash, and origin locally URL Encoder Decoder Encode and decode URL components safely UTM URL Builder Build campaign URLs with UTM source, medium, campaign, term, and content fields HTML Minifier Minify simple HTML markup by removing extra whitespace HTML Prettifier Format simple HTML markup with readable line breaks CSS Minifier Minify CSS by removing comments and extra whitespace CSS Prettifier Format CSS rules with readable indentation JavaScript Minifier Minify simple JavaScript snippets by removing comments and extra whitespace Cookie Header Parser Parse Cookie request headers into readable JSON HTTP Header Parser Parse HTTP header lines into readable JSON cURL to Fetch Convert simple cURL commands into browser fetch snippets User-Agent Parser Identify browser, engine, operating system, and device hints from a user agent string HTTP Basic Auth Generator Generate Basic Authorization header values locally
CIDR Calculator Calculate IPv4 network, broadcast, mask, range, and usable host count IPv4 Address Converter Convert IPv4 addresses between dotted decimal, integer, hexadecimal, and binary IP Range to CIDR Convert an IPv4 start and end range into CIDR blocks MAC Address Formatter Format MAC addresses with colon, hyphen, or plain notation IPv6 Compressor Compress expanded IPv6 addresses with zero-run shorthand IPv6 Expander Expand compressed IPv6 addresses to eight padded groups Port List Parser Expand comma-separated ports and ranges into sorted port lists CIDR Normalizer Normalize IPv4 CIDR blocks to their canonical network address SPF Record Parser Parse SPF mechanisms, includes, IP ranges, and policy qualifiers locally DMARC Record Parser Parse DMARC policy tags, aggregate report destinations, and alignment settings locally DKIM Record Parser Parse DKIM selector records, key types, hash algorithms, and public key hints locally DNS Zone File Parser Parse simple zone file records into structured JSON without network access Punycode Converter Convert internationalized domain labels to ASCII punycode locally DNS Lookup Resolve public DNS records through a rate-limited Fileees network function RDAP WHOIS Lookup Query public RDAP registration data through a guarded network function Remote Header Checker Fetch public HTTP headers through a guarded network function with private IP blocking Short URL Expander Follow a bounded public redirect chain through a guarded network function
Crypto Tools 20
Hash Generator Generate SHA and MD5 hashes for text snippets HMAC Generator Generate HMAC signatures for text with SHA-256 or SHA-512 in the browser Hash Compare Compare two hashes or strings with normalized whitespace JWT Decoder Decode JWT header and payload without sending tokens anywhere JWT Generator Generate local HS256 JWTs for development fixtures SHA Checksum Generate SHA-256 checksums for pasted text Password Strength Checker Estimate password strength, entropy, and practical improvement hints locally Token Generator Generate random hex, Base64URL, and alphanumeric tokens with browser crypto Nanoid Generator Generate short URL-safe IDs for prototypes, tests, and documentation Random Hex Generator Generate cryptographically random hexadecimal strings Passphrase Generator Generate memorable random passphrases locally TOTP Secret Generator Generate random Base32 secrets for authenticator app testing UUID Generator Generate UUIDs and ULIDs for tests or documentation UUID Namespace Helper Generate namespace-style UUID fixtures for docs and tests htpasswd Generator Generate development-only Apache htpasswd style entries in the browser Bcrypt Hash Helper Inspect bcrypt hash structure and generate safe development placeholder hashes Certificate Parser Inspect PEM certificate blocks, fingerprints, and encoded metadata hints locally CSR Inspector Inspect PEM certificate signing request blocks and fingerprints locally RSA Key Inspector Inspect PEM public and private key block type, size hints, and fingerprints locally Text Encryption Helper Create browser-local AES-GCM encrypted text fixtures from passphrases
Date-time Converter Convert ISO dates, Unix timestamps, UTC, and local time values locally Duration Calculator Calculate elapsed time between two date-time values Week Number Converter Find ISO week numbers and week date ranges for a date Timezone Converter Convert a date-time value across common time zones in the browser iCal Event Generator Generate simple ICS calendar event text from event details iCal Parser Parse ICS calendar snippets into readable event fields Age Calculator Calculate age in years and days from dates Date Difference Calculator Calculate days between two dates locally Working Days Calculator Estimate weekdays between two dates in the browser
Docker Tools 10
Docker Run to Compose Convert simple docker run commands into Docker Compose YAML snippets Compose to Docker Run Convert simple Docker Compose service snippets into docker run commands Compose to Kubernetes Create basic Kubernetes Deployment and Service YAML from simple Compose snippets Docker Compose to ENV Extract simple Compose environment maps and arrays into KEY=value lines Docker Inspect to Run Convert common Docker inspect JSON fields into a best-effort docker run command Compose to Quadlets Convert simple Compose services into Podman Quadlet .container unit text Docker Run to Quadlets Convert simple docker run commands into Podman Quadlet .container unit text Docker Run to Kubernetes Create basic Kubernetes Deployment and Service YAML from simple docker run commands Compose Version Converter Normalize legacy Compose version declarations while preserving services Traefik Compose Generator Generate a simple Compose service with Traefik router and service labels
XML Formatter Format XML markup with readable indentation in your browser XML to JSON Converter Convert simple XML documents into readable JSON locally XML Linter Check XML markup for basic well-formedness and parser errors XPath Tester Run XPath expressions against XML snippets in the browser XSLT Tester Apply simple XSLT stylesheets to XML snippets locally
Phone Number Parser Normalize phone numbers and show country hints for common prefixes Luhn Validator Validate card-like numbers with the Luhn checksum locally IBAN Validator Validate IBAN checksum and normalize spacing locally VAT Number Helper Normalize VAT numbers and show country prefix hints without remote lookup ISO Country Search Search common ISO country codes, names, and calling prefixes locally GTIN Validator Validate GTIN, EAN, UPC, and ISBN-style check digits locally
QR Code Generator Generate downloadable QR codes from text or URLs QR Code Reader Decode QR codes from uploaded images locally Barcode Generator Create downloadable barcodes for common values QR Contact Generator Generate vCard contact QR payloads locally from simple contact details WiFi QR Generator Generate WiFi QR payload text from SSID, password, and security type QR Code Decoder Decode pasted QR text fixtures locally and keep image decoding separate
Dice Roller Roll common dice expressions like 2d6 locally with browser randomness Coin Flipper Flip one or more virtual coins locally Random Card Picker Pick random playing cards from a standard deck Lucky Wheel Spin a local random picker for names, tasks, or choices Wheel Spinner Pick one option from a pasted list locally Team Randomizer Shuffle names into two local random teams Random Number Generator Generate random integers, decimals, and ranges with browser crypto Random Date Generator Generate random dates between two dates locally Random Time Generator Generate random HH:MM times locally
Geographic Distance Calculator Calculate great-circle distance between two latitude and longitude pairs HDD Capacity Calculator Convert advertised disk capacity to usable GiB and TiB estimates Unit Converter Convert common metric and imperial units in one browser-local calculator Speed Converter Convert mph, km/h, m/s, knots, and feet per second Area Converter Convert square meters, feet, acres, hectares, and more Volume Converter Convert liters, gallons, cups, milliliters, and cubic units SI Prefixes Converter Convert SI-prefixed values locally for quick, non-certified estimates Angle Converter Convert degrees, radians, turns, and grads for quick, non-certified estimates Pressure Converter Convert pascal, bar, atmosphere, psi, and torr values for quick, non-certified estimates Performance Benchmark Builder Calculate mean and variance from benchmark sample numbers Mass Converter Convert kg, g, lb, and oz values locally Volume Flow Rate Converter Convert m3/s, L/s, L/min, and gal/min values Time Unit Converter Convert seconds, minutes, hours, and days Data Transfer Rate Converter Convert MB/s, Mbps, KB/s, and GB/s estimates Fuel Economy Converter Convert mpg to L/100km and km/L estimates Pace Converter Convert running pace between min/km and min/mile Bytes Converter Convert bytes, KB, MB, GB, and GiB estimates Average Calculator Calculate average, min, max, and count from pasted numbers Ratio Simplifier Simplify two-number ratios with a greatest common divisor PPM Converter Convert ppm to percent and decimal estimates Acceleration Converter Convert m/s2, ft/s2, and g acceleration values locally Concentration Converter Convert percent, ppm, and decimal concentration values Cooking Measure Converter Convert cups, tablespoons, teaspoons, and milliliters locally REM PX Calculator Convert rem and px values with a browser-local base size
Percentage Calculator Calculate percentages, percent change, and what percent one number is of another BMI Calculator Calculate body mass index from metric or US height and weight inputs ROI Calculator Calculate return on investment from gain and cost values CAGR Calculator Calculate compound annual growth rate locally Break Even Calculator Calculate break-even units from fixed cost, price, and variable cost Margin Markup Calculator Calculate margin and markup from cost and price locally GPA Calculator Calculate simple grade point averages locally Grade Percentage Calculator Calculate grade percentages from score and total values
Force Converter Convert newtons, kilonewtons, dyne, kilogram-force, and pound-force for quick, non-certified estimates Energy Converter Convert joules, watt-hours, kilowatt-hours, calories, and BTU for quick, non-certified estimates Power Converter Convert watts, kilowatts, horsepower, and BTU per hour for quick, non-certified estimates Torque Converter Convert newton-meters, pound-feet, pound-inches, and kilogram-force meters for quick, non-certified estimates Density Calculator Calculate density, mass, or volume from two known values for quick, non-certified estimates Frequency Wavelength Calculator Convert frequency and wavelength using the speed of light for quick, non-certified estimates Ohm's Law Calculator Solve voltage, current, resistance, and power for quick, non-certified estimates Resistor Color Code Calculator Decode 4-band resistor colors for quick, non-certified estimates Kinematics Calculator Solve constant-acceleration values for quick, non-certified estimates
File Type Inspector Inspect magic bytes and common signatures for browser-local file triage File Checksum Generate browser-local SHA-256 checksums for pasted forensic snippets Hash Identifier Identify likely MD5, SHA, NTLM, bcrypt, and other hash formats locally IOC Extractor Extract URLs, domains, IP addresses, hashes, and emails from text locally Email Header Analyzer Summarize email headers, received hops, sender fields, and authentication hints locally URL Defang Refang Defang or refang URLs, domains, and IP indicators for safe sharing Safe Links Decoder Decode Microsoft Safe Links and reveal the original URL locally Snowflake ID Parser Decode timestamp hints from Twitter-style Snowflake IDs locally MongoDB ObjectId Parser Decode MongoDB ObjectId timestamps and raw components locally Sensitive Data Masker Mask emails, cards, tokens, IPs, and common secrets before sharing logs Hex Data Inspector Inspect hex bytes, ASCII previews, and entropy hints for pasted data Log Timeline Normalizer Normalize common log timestamps into an ordered browser-local timeline
Base64 Encoder Decoder Encode or decode Base64 text locally Regex Tester Test regular expressions against sample text locally Cron Parser Explain cron schedules and preview upcoming run times CSV JSON Converter Convert CSV to JSON or JSON arrays back to CSV JSON to TypeScript Generate TypeScript interfaces from JSON samples in your browser YAML JSON Converter Convert YAML to JSON and JSON to YAML for config snippets SQL Formatter Format SELECT, JOIN, INSERT, UPDATE, and DELETE SQL statements HTML Escape and Unescape Escape HTML entities or decode escaped HTML text locally JSON Schema Validator Validate JSON data against required fields and simple JSON Schema rules HTML Entities Decoder Encode and decode HTML entities for snippets and content cleanup Slug Generator Generate URL-safe slugs from titles and phrases Color Format Converter Convert HEX colors to RGB and HSL values CSS Unit Converter Convert px, rem, em, and percent values with a configurable base ENV to JSON Convert .env lines to JSON locally JSON to ENV Convert flat JSON objects to .env lines locally Dotenv Sorter Sort .env lines while preserving comments locally HTTP Status Lookup Look up common HTTP status code meanings locally MIME Type Lookup Look up common MIME types and file extensions locally Semver Compare Compare semantic versions locally Regex Escape Helper Escape literal text for regular expressions locally URL Joiner Join base URLs and paths without making network requests
PDF 17
PDF Merger Combine multiple PDF files into one browser-local document PDF Splitter Split selected pages or page ranges from a PDF without uploading PDF Compressor Reduce PDF file size locally before email, forms, or sharing PDF to Image Export PDF pages as PNG images in your browser Images to PDF Convert JPG, PNG, and WebP images into a single PDF locally PDF Rotate Rotate PDF pages and download a corrected copy PDF Delete Pages Remove unwanted pages from a PDF in the browser PDF Reorder Pages Reorder PDF pages before downloading a new file PDF Page Numbers Add page numbers to PDF pages with local processing PDF Watermark Add text watermarks to a PDF before sharing PDF Protect Add password protection to a PDF locally PDF Unlock Remove PDF password protection when you know the password PDF Sign Place a signature image or text mark onto a PDF PDF Extract Text Extract selectable text from PDF files in the browser PDF to Word Convert selectable-text PDFs to editable DOCX files locally PDF to Excel Extract text-layer PDF rows to a spreadsheet-friendly CSV download PDF OCR Run an isolated browser-local OCR workflow for scanned PDFs
Image 21
Image Compressor Compress JPG, PNG, and WebP images locally Compress Image to Exact KB Compress images to 20KB, 50KB, 100KB, or a custom target size Image Format Converter Convert JPG and PNG images to WebP (or PNG/JPG) in your browser Image Resizer Resize images by width and height without uploading Passport Photo and Signature Resizer Resize passport photos, signatures, avatars, and official form images with optional KB targets Social Media Image Resizer Resize images for Instagram, YouTube, Facebook, LinkedIn, and X presets Image Cropper Crop images to a selected area or aspect ratio locally Background Remover Remove simple solid backgrounds from images in the browser Image Watermark Add text watermarks to images before download HEIC to JPG Convert HEIC or HEIF photos to JPG when browser support is available Image Stitcher Stitch multiple screenshots or images into one long image Image Color Picker Pick HEX, RGB, and HSL colors from an uploaded image Image EXIF Viewer Inspect image metadata and camera information locally Favicon Generator Generate favicon sizes and manifest files from one image Image Base64 Converter Encode images to Base64 or preview Base64 image data EXIF Stripper Plan a browser-local image re-encode workflow with file-size and privacy notes SVG Previewer Preview pasted SVG markup safely as browser-local text Watermark Tool Prepare local image watermark workflow notes with file-size and privacy copy Color Inverter Invert HEX colors locally for quick image and design checks SVG to PNG Render SVG markup or files to downloadable PNG images locally Remove Image Metadata Strip image metadata by re-encoding a clean browser-local copy
Office 7
Emoji Search Search and copy common emoji for messages and documents Image OCR and PDF OCR Extract text from images and scanned PDFs with an isolated local OCR workflow Excel Merger Merge spreadsheet rows into a local workbook download Word Merger Merge document text into a simple DOCX download Excel to PDF Convert simple spreadsheet data to a clean browser-generated PDF Word to PDF Convert pasted document text to a simple local PDF download PowerPoint to PDF Convert slide text outlines to a browser-generated PDF handout
SEO 7
Sitemap Generator Generate XML sitemap entries from URLs, priorities, and change frequencies Create Robots.txt Online Create robots.txt files with Allow, Disallow, and Sitemap directives in your browser Meta Tag Generator Generate title, description, canonical, robots, Open Graph, and Twitter tags SERP Preview Preview how a page title, URL, and description may appear in Google results Open Graph Preview Preview social link cards and generate Open Graph metadata Schema Markup Generator Generate JSON-LD schema for articles, FAQs, products, and websites Keyword Density Checker Analyze word frequency, keyword density, and repeated phrases locally
Business 4
Loan Calculator Calculate monthly loan payments, total interest, and payoff totals Mortgage Calculator Estimate mortgage principal, interest, tax, insurance, and PMI payments Compound Interest Calculator Project compound growth from principal, deposits, rate, and years Invoice Generator Create a simple invoice and download a local browser-generated PDF
Simplified Traditional Converter Convert Chinese text between Simplified and Traditional scripts Hanzi Pinyin Converter Convert Chinese characters to pinyin annotations locally Text to Image Turn short text into a downloadable image card Text Diff Compare two text blocks and highlight line changes Timestamp Converter Convert Unix timestamps and readable dates in the browser Word Counter Count words, characters, sentences, and reading time Case Converter Convert text between uppercase, lowercase, title case, and more Text Reverser Reverse text, lines, or character order locally Duplicate Remover Remove duplicate lines from pasted text Lorem Generator Generate placeholder paragraphs and sample copy locally Password Generator Generate strong random passwords in the browser Find and Replace Find text, replace matches, and copy cleaned output in your browser Remove Line Breaks Remove unwanted line breaks, extra spaces, and wrapped paragraph breaks Sort Lines Sort lines alphabetically, numerically, or remove duplicates while sorting Text Cleaner Trim whitespace, normalize spaces, clean blank lines, and prepare pasted text Random String Generator Generate random strings, tokens, and test values locally Countdown Calculator Calculate days until a target date Line Number Adder Add readable line numbers to pasted text Text Statistics Count words, characters, lines, and paragraphs locally Character Counter Count characters with and without spaces Sentence Case Converter Convert pasted text to simple sentence case Whitespace Normalizer Normalize extra spaces, tabs, and blank lines CSV Column Extractor Extract one CSV column from pasted rows Comma-Separated List Cleaner Clean, trim, and deduplicate comma-separated lists Bullet List Converter Convert lines to a simple Markdown bullet list Aspect Ratio Calculator Calculate missing width or height from an aspect ratio Discount Calculator Calculate sale price and savings from a discount percent Tip Calculator Calculate tip, total, and split amount Screenshot Tool Capture, crop, download, or copy screenshots in the browser Color Picker Pick and convert HEX, RGB, HSL colors Length Converter Convert mm, cm, m, km, in, ft, yd, mi Weight Converter Convert kilograms, pounds, ounces, grams, and stones instantly Temperature Converter Convert Celsius, Fahrenheit, and Kelvin with exact formulas Prefix Suffix Adder Add prefixes and suffixes to pasted lines locally Alternating Case Converter Convert pasted text to alternating case in the browser Remove Emojis Remove emoji characters from pasted text locally Text Splitter Split pasted text by comma, pipe, or new line Text Joiner Join pasted lines into a single local string URL List Extractor Extract URLs from pasted text without upload Email List Extractor Extract email addresses from pasted text locally Word Frequency Counter Count repeated words in browser-local text Reading Time Calculator Estimate reading time for pasted drafts locally Markdown Link Extractor Extract Markdown links from notes and READMEs locally Title Case Converter Convert titles to browser-local title case Kebab Case Converter Convert phrases to kebab-case slugs locally Snake Case Converter Convert phrases to snake_case locally Clipboard Safe Text Clean control characters from copied text locally Number Rounder Round pasted numbers to useful decimal places locally Fraction Decimal Converter Convert simple fractions and decimals locally Loan To Value Calculator Calculate LTV percentage from loan and asset values Sales Tax Calculator Calculate sales tax and total price locally Payment Fee Calculator Estimate payment processing fees from amount and rate Aspect Fit Calculator Fit one rectangle inside another while keeping aspect ratio Pixel Density Calculator Calculate PPI from resolution and diagonal size YAML Frontmatter Extractor Extract Markdown YAML frontmatter locally Gitignore Generator Generate small .gitignore snippets for common stacks locally Base64 URL Converter Convert Base64 and Base64URL strings locally Cron Description Helper Describe simple cron expressions locally Random Name Picker Pick one name from a pasted list locally Raffle Ticket Generator Generate local raffle ticket numbers Checklist Shuffler Shuffle checklist lines locally Chores Rotator Rotate names through chores using a local list Meeting Time Slot Randomizer Pick a meeting time slot from pasted options locally Decision Matrix Scorer Score simple option rows locally Priority Sorter Sort P0, P1, P2, and P3 lines locally Simple Timer Plan Convert task lines into a local timer checklist