Fahrenheit to Celsius
Convert temperatures between Fahrenheit and Celsius scales.
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Converters
Feet to Meters
Convert lengths from feet to meters.
Meters to Feet
Convert lengths from meters to feet.
Inches to Centimeters
Convert lengths from inches to centimeters.
Miles to Kilometers
Convert distances from miles to kilometers.
Grams to Ounces
Convert weight from grams to ounces.
Pounds to Kilograms
Convert weight from pounds to kilograms.
Ounces to Grams
Convert weight from ounces to grams.
Square Feet to Square Meters
Convert area from square feet to square meters.
MPH to KMH
Convert speed from miles per hour to kilometers per hour.
Deciliters to Liters
Convert volume from deciliters to liters.
Liters to Deciliters
Convert volume from liters to deciliters.
Knots to M/S
Convert speed from knots to meters per second.
Code Obfuscator
Transform your JavaScript code into an obfuscated version that's harder to read and reverse engineer.
Roman Numerals
Convert between Roman numerals and decimal numbers.
Number Base Converter
Convert between binary, decimal, hexadecimal, and octal numbers.
Epoch Converter
Convert between Unix timestamps and human-readable dates.
Cubic Inches to Liters
Convert between cubic inches and liters/milliliters.
Energy Converter
Convert between joules, calories, and kilowatt hours.
Browse category
Calculators
BMI Calculator
Calculate your Body Mass Index (BMI).
Circle Calculator
Calculate area, circumference, and diameter of circles.
Square Root Calculator
Calculate square roots of numbers.
GPA Calculator
Calculate your Grade Point Average.
Percentage Calculator
Calculate percentages easily.
Fraction Calculator
Perform calculations with fractions.
Dog Age Calculator
Convert dog years to human years.
Screen Size Calculator
Calculate screen dimensions and resolution.
Speed Distance Time Calculator
Calculate speed, distance, or time.
Multiplication Table
Generate multiplication tables.
Pythagorean Theorem
Calculate sides of right triangles.
Days Between Dates
Calculate the number of days between two dates.
Business Days Calculator
Calculate working days between dates, excluding weekends and holidays.
Density Calculator
Calculate density, mass, or volume using the density formula.
Molar Mass Calculator
Calculate the molar mass (molecular weight) of chemical compounds.
Browse category
Time Tools
Week Number
Find the week number for any date.
World Clock
View time across different time zones.
Stopwatch
Simple online stopwatch.
ICS Calendar File Generator
Create downloadable ICS calendar events with reminders and recurrence rules.
ICS Calendar File Validator
Check iCalendar files for structure, required properties, dates, folding, and common import issues.
Cron Expression Debugger
Explain cron schedules and preview upcoming runs for Unix, GitHub, and AWS.
RRULE Generator & Tester
Build iCalendar recurrence rules and preview upcoming event occurrences.
Browse category
File Converters
CSV to JSON
Convert CSV files to JSON format easily.
JPG to PDF
Convert JPG images to PDF format.
PNG to JPG
Convert PNG images to JPG format.
JPG to WebP
Convert JPG images to WebP format.
ZIP Contents to PDF
Create a PDF inventory of the files inside a ZIP archive.
HEIC to JPG
Convert HEIC images to JPG format.
PDF to JPG
Convert PDF files to JPG images.
PDF to PNG
Convert PDF files to PNG images.
PDF to CSV
Convert PDF tables to CSV format.
SVG to PNG
Convert SVG images to PNG format.
JSON to CSV
Convert JSON data to CSV format easily.
DOCX to HTML
Convert Word documents to HTML format.
HTML to DOCX
Convert HTML content to Word documents.
ZIP/Unzip Files
Compress and extract ZIP files.
XML to JSON
Convert XML data to JSON format.
JSON to XML
Convert JSON data to XML format.
YAML to JSON
Convert YAML data to JSON format.
JSONL Converter & Validator
Convert JSON arrays, JSON Lines, NDJSON, and CSV with line-by-line validation.
CSV Delimiter & Encoding Fixer
Change CSV delimiters, line endings, and common text encodings locally.
CSV Duplicate Remover
Remove duplicate CSV rows using selected columns and normalization rules.
CSV Column Extractor
Select, reorder, clean, and export specific columns from CSV files locally.
TOML to JSON Converter
Validate TOML 1.1 configuration and convert it to formatted JSON locally.
Browse category
Random Generators
Random Number
Generate random numbers within a range.
Password Generator
Create secure random passwords.
Dice Roll
Roll virtual dice.
Raffle
Pick random winners from a list.
QR Code Generator
Generate QR codes for any text or URL.
Lorem Ipsum
Generate placeholder text.
GUID Generator
Generate .NET-style version 4 GUIDs with braces and case options.
UUID v7 Generator & Decoder
Generate time-ordered UUID v7 values and decode their embedded timestamps.
ULID Generator & Decoder
Generate sortable ULIDs, decode timestamps, and convert ULID values to UUIDs.
Browse category
Developer Tools
JSON Formatter
Format and validate JSON data.
Base64 Encoder/Decoder
Convert text to and from Base64.
Hex Converter
Convert numbers to/from hexadecimal.
URL Encoder/Decoder
Encode and decode URLs.
Favicon Path Checker
Check common favicon and app-icon paths on a website.
Google Preview
Preview how your page appears in Google.
Search Console Opportunity Analyzer
Prioritize positions 4–20, CTR gaps, and localization candidates from private CSV exports.
IP Address
Get your IP address and details.
Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text.
HTML Encoder/Decoder
Encode text as HTML entities or decode entities back to text.
JWT Decoder
Inspect JWT headers, payloads, and signatures locally in your browser.
UUID v4 Generator
Generate secure random version 4 UUIDs in bulk.
JSON Pointer & Patch Tester
Resolve RFC 6901 pointers and test RFC 6902 JSON Patch operations locally.
Cache-Control Header Builder
Build, parse, and explain HTTP Cache-Control directives with ready-to-use snippets.
SRI Hash Generator & Verifier
Create and verify SHA-256, SHA-384, and SHA-512 Subresource Integrity hashes.
OAuth PKCE Generator & Verifier
Generate and verify RFC 7636 code verifiers, S256 challenges, and authorization URLs.
HAR Viewer & Sanitizer
Inspect HAR network archives and redact credentials, cookies, query values, and bodies.
security.txt Generator
Create and validate RFC 9116 vulnerability disclosure contact files.
CSP Header Builder
Build, parse, and review Content Security Policy headers and server snippets.
Permissions-Policy Builder
Control browser features with HTTP headers and iframe allow attributes.
CORS Header Generator
Build CORS response headers and server snippets with origin and credential checks.
Content-Disposition Generator
Create and parse safe download headers with UTF-8 filename support.
Cookie Header Parser
Parse Cookie and Set-Cookie fields and review common scope and security issues.
JWK Thumbprint Calculator
Calculate RFC 7638 JWK thumbprints and generate temporary public key examples.
Data URI Generator
Convert text or small files to Base64 or percent-encoded data URLs and snippets.
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Text Tools
Word Counter
Count words, characters, and paragraphs.
Convert to Uppercase
Convert text to uppercase.
Convert to Lowercase
Convert text to lowercase.
Convert to Title Case
Convert text to title case.
Wingdings Translator
Convert text to/from Wingdings.
Unicode Text Generator
Generate fancy unicode text.
Text to ASCII Art
Convert text to ASCII art.
Morse Code Translator
Convert text to/from Morse code.
Image to Text
Extract text from images (OCR).
CSV Viewer
View and analyze CSV files.
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Design Tools
Honest answers for difficult formats
Practical conversion guides
Some files need a server, codec, or specialist renderer. These guides explain the methods that actually work without pretending a renamed file is a conversion.
How to Convert ASPX to PDF
Convert a rendered ASP.NET page to PDF with reliable browser, application, and server-side methods. Learn why a raw ASPX file is not enough.
How to Convert DWG to PDF
Create an accurate PDF from a DWG drawing using a compatible CAD renderer. Preserve layouts, line weights, fonts, scale, and layers.
How to Convert RAR to ZIP
Convert RAR to ZIP by safely extracting the archive and recompressing its contents. Preserve folders and check password-protected files.
How to Convert MOV to MP4
Convert MOV to MP4 by remuxing compatible video without quality loss or re-encoding when necessary. Includes dependable FFmpeg commands.
How to Convert PNG to SVG
Turn a PNG logo or icon into editable SVG paths with vector tracing. Learn when tracing works, how to clean paths, and what to avoid.
How to Convert ZIP to RAR
Create a genuine RAR archive by extracting a ZIP and recompressing its contents with software that supports RAR creation.