SmartPlusLab
Tools
Online tools with clear inputs, predictable outputs, and honest privacy and limit notes.
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URL Parser
Parse and break down web addresses into scheme, hostname, port, path, query parameters, and fragments online.
Network Tools -
User Agent Parser
Parse browser User-Agent strings online to inspect browser name, version, operating system, rendering engine, and device classification.
Network Tools -
VAT Calculator
Calculate value-added tax by adding a tax percentage to net prices or removing VAT from gross totals.
Finance -
Video to GIF Converter
Convert video files into animated GIFs with custom start time, duration, frame rate, and width.
File Converters -
Vigenère Cipher
Encrypt and decrypt text online using the polyalphabetic Vigenère cipher with a custom keyword.
Crypto & Security -
Volume Converter
Convert liquid and dry volume measurements between metric units, US customary units, and UK imperial units.
Converters -
WebP to JPG Converter
Convert WebP image files to JPEG format online with customizable compression quality settings.
File Converters -
WebP to PNG Converter
Convert WebP images to PNG format online, generating PNG-encoded image data and file size details.
File Converters -
Week Number Calculator
Calculate the ISO week number, weekday, quarter, and total weeks in the year from any date or date components.
Time & Date -
Weight Converter
Convert weight and mass values accurately between metric units, imperial pounds, ounces, stones, and tons.
Converters -
WHOIS Lookup
Look up public domain registration information and status details through authoritative RDAP services.
Network Tools -
Word Counter
Count words, characters, sentences, paragraphs, and lines, then estimate reading and speaking time.
Text Tools -
Word Frequency Analyzer
Analyze word frequency and density across text with optional stop-word filtering and rank summaries.
Text Tools -
Word Frequency Map
Analyze word frequency in any text passage. Calculate word counts, percentage shares, and relative distributions with custom filtering.
Text Tools -
Word Wrapper / Line Breaker
Wrap text to a specified line width with optional indent and break-long-words support.
Text Tools -
Working Days Calculator
Calculate business days between two dates with custom weekend and holiday exclusions.
Time & Date -
World Clock
Compare current civil times, dates, and UTC offsets across multiple cities and IANA timezones in one view.
Time & Date -
XML Formatter
Format, indent, or minify XML markup online with custom spacing.
Developer Tools -
XML to JSON Converter
Convert XML documents and fragments into formatted JSON text while preserving attributes, element hierarchy, and custom array mappings.
File Converters -
YAML to JSON Converter
Convert YAML configuration data, lists, and mappings into formatted JSON text with customizable indentation and optional key sorting.
File Converters -
YouTube Thumbnail Downloader
Generate direct YouTube thumbnail image URLs in multiple resolutions from a video link or video ID.
Social & Media -
ZIP Creator
Create ZIP archives from text entries with customizable compression settings.
File Tools