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116 tools

Visual Area Comparisoncompare floor space and land areas as squares at the same scaleConverters

Globe Distancemeasure distance between cities on a globe and estimate nonstop flight timeUtility

Area Converterconvert area between metric and imperial unitsConverters

Distance Converterconvert distance between metric and imperial unitsConverters

BMI Calculatorcalculate adult body mass index from metric or imperial height and weightAnalyze

ASCII to Hexconvert ASCII text to hexadecimal bytesEncode

Add Slashesescape quotes and slashesEncode

Android to iOS Stringsconvert Android XML strings to iOS formatConvert

Base64 Decodedecode Base64 textDecode

Base64 Encodeencode text into Base64Encode

Barcode Generatorgenerate common barcode formats from text valuesUtility

Barcode Scannerscan barcode values from camera or uploaded imagesUtility

Binary to Decimalconvert binary numbers to decimalConvert

CSV to JSONconvert CSV data to JSON arraysConvert

Camel Caseconvert text to camelCaseCase

Collapse Whitespacecollapse repeated whitespace into single spacesUtility

Count Characterscount all characters in input textAnalyze

Count Linescount lines in multiline inputAnalyze

Count Wordscount words separated by whitespaceAnalyze

Text Diff Analyzercompare two text blocks with side-by-side diff analysis and character-level highlightsAnalyze

Date to Timestampconvert date strings to Unix timestampsTime

Date to UTCconvert date strings to UTC textTime

Deburrremove accents and diacriticsUtility

Decimal to Binaryconvert decimal numbers to binaryConvert

Decimal to Hexconvert decimal numbers to hexadecimalConvert

Downcaseconvert text to lowercaseCase

Fish Hex Path Converterdecode fish shell hex-encoded pathsConvert

Format CSSformat CSS code with indentationFormat

Format JSONpretty-print JSONFormat

Format SQLformat SQL queriesFormat

Format XMLformat XML markupFormat

HTML Decodedecode HTML entitiesDecode

HTML Encodeencode text as HTML entitiesEncode

HTML Encode Allencode all characters into entitiesEncode

Hex to ASCIIdecode hexadecimal bytes to textDecode

Hex to Decimalconvert hexadecimal numbers to decimalConvert

Image Resizerresize JPEG, PNG, and WebP images client-sideUtility

iOS to Android Stringsconvert iOS strings format to Android XMLConvert

JSON to CSVconvert JSON arrays to CSVConvert

JSON to YAMLconvert JSON to YAMLConvert

JWT Decodedecode JWT header and payloadDecode

JWT Token Generatorgenerate signed JWT tokens using plain secrets, RSA private keys, or ECDSA private keysUtility

JSON to Query Stringconvert JSON objects to URL query stringsConvert

Kebab Caseconvert text to kebab-caseCase

Lorem Ipsumgenerate placeholder text by word countUtility

MD5calculate an MD5 hashHash

Markdown Quoteprefix each line with Markdown quote syntaxUtility

Minify CSSminify CSS sourceMinify

Minify JSONminify JSON textMinify

Minify SQLcollapse SQL whitespaceMinify

Minify XMLremove XML formatting whitespaceMinify

Natural Sortsort lines using natural numeric orderSort

PHP Unserializeconvert PHP serialized payloads to JSONDecode

Query String to JSONconvert URL query strings to JSONConvert

QR Code Generatorgenerate QR code images from text or URLsUtility

QR Code Scannerscan and decode QR payloads from camera or imagesUtility

Remove Duplicatesremove duplicate linesUtility

Remove Slashesunescape slashed quotes and backslashesDecode

Replace Smart Quotesreplace typographic punctuation with plain ASCIIUtility

Reverse Linesreverse line orderUtility

Reverse Stringreverse characters in textUtility

ROT13apply ROT13 substitution cipherEncode

SHA1calculate a SHA1 hashHash

SHA256calculate a SHA256 hashHash

SHA512calculate a SHA512 hashHash

Shuffle Linesrandomize line orderUtility

Snake Caseconvert text to snake_caseCase

Sort Linessort lines alphabeticallySort

Sort JSONsort object keys recursivelySort

Sponge Casealternate lowercase and uppercase lettersCase

Start Caseconvert text to Start CaseCase

LLM Token Analyzeranalyze OpenAI token boundaries, IDs, and token countsAnalyze

Trimtrim leading and trailing whitespaceUtility

URL Decodedecode URL-encoded textDecode

URL Defangdefang URLs for safe sharingEncode

URL EncodeURL-encode textEncode

URL Entities Decodedecode URI entity textDecode

URL Entities Encodeencode URI entities while preserving URL separatorsEncode

URL Inspectorbreak down a URL into host, path, and query parameter partsAnalyze

URL Refangrestore defanged URLsDecode

Upcaseconvert text to uppercaseCase

YAML to JSONconvert YAML to JSONConvert

Hex to RGBconvert hex colors to rgb()Convert

SSH Key Generator + Inspectorgenerate RSA/ECDSA keypairs and inspect PEM/OpenSSH key metadataUtility

JWT/JWS/JWK Toolkitdecode tokens, verify signatures, inspect claims, and compare key metadataAnalyze

API Signature Toolsign and verify webhook payloads using HMAC SHA algorithmsUtility

Kubernetes Secret Manifest Decoderdecode base64 Secret data from JSON maps or full Kubernetes Secret manifests into plain JSON and .env outputKubernetes

Kubernetes Secret Manifest Creatorconvert JSON or .env values into a base64-encoded Kubernetes Secret manifest YAMLKubernetes

UUID/ULID/NanoID Generatorgenerate UUID v1/v3/v4/v5/v6/v7/v8, ULID, or NanoID identifiersUtility

Password + Token Generatorgenerate secure passwords and tokens with entropy scoringUtility

Cron Builder + Explainerbuild cron schedules with beginner-friendly presets and preview upcoming run timesTime

JSON Schema Validator + Example Generatorvalidate payloads against schema and generate sample dataAnalyze

Markdown Table of Contents Generatorgenerate markdown table of contents links from markdown headingsUtility

Markdown Editor + Previeweredit markdown with live preview, fullscreen mode, and local draft persistenceEditors

Regex Tester (JavaScript Only)test JavaScript regex patterns with live highlighting, captures, and explanationsAnalyze

Certificate/CSR Generator + PEM Inspectorgenerate CSRs/certificates and inspect PEM metadataUtility

Timezone + Unix Timestamp Utilityconvert between timestamps and timezone-formatted datesTime

JSON Size Analyzeranalyze JSON size breakdown by path and structureAnalyze

ASCII Art Generatorconvert text into stylized ASCII art bannersUtility

Bandwidth Converterconvert network throughput between bit and byte rate unitsConverters

Countdown Timerrun quick timers with presets and completion feedbackTime

Event Countdown Trackertrack future events with live day/hour/minute/second countdownsTime

Fasting Timer Trackertrack intermittent fasting and eating windows with live progress and local statsTime

Data Size Converterconvert between decimal and binary storage units from bytes through yottabytesConverters

Stopwatchtrack elapsed time with lap splits and quick reset controlsTime

Duration Converterconvert between nanoseconds, microseconds, milliseconds, seconds, and larger time units including months and yearsTime

ETH Unit Converterconvert between wei, gwei, ether, and extended ethereum denomination unitsCrypto

Fake Data Generator (Faker.js)generate realistic fake datasets for testing, demos, and local developmentUtility

Mermaid Diagram Editor + Previeweredit Mermaid diagram syntax with live SVG preview, zoom controls, fullscreen mode, and local draft persistenceEditors

Multi Timezone Plannercompare multiple timezones with live clocks, running seconds, and a shared hourly timelineTime

PNG Background Removerremove image backgrounds client-side with configurable threshold controlsUtility

Pomodoro Timerrun configurable focus sessions with automatic short and long break cyclesTime

Number Base Converterconvert integers across binary, octal, decimal, and hexadecimal formatsConverters

SOL Unit Converterconvert between lamports, microSOL, milliSOL, and SOL unitsCrypto

Transfer Time Calculatorestimate upload or download time using data size and bandwidth valuesTime

World Clocktrack multiple places with live digital clocks and saved 12/24-hour settingsTime