🔧 Conversion Tools
Unit Converter
Convert length, weight, temperature, volume, speed, and area between metric and imperial units.
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Currency Converter
Live exchange rates for 150+ world currencies. USD, EUR, GBP, JPY and more.
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🧮 Calculators
Percentage Calculator
Calculate percentages, percentage change, and what percent one number is of another.
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BMI Calculator
Calculate your Body Mass Index using metric or imperial measurements.
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Age Calculator
Find your exact age in years, months, and days from your date of birth.
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Tip Calculator
Calculate tip amounts and split the bill evenly among your group.
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📝 Text Tools
Word Counter
Count words, characters, sentences, and paragraphs in any block of text.
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Case Converter
Convert text to UPPERCASE, lowercase, Title Case, or sentence case instantly.
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🕐 Date & Time
Time Zone Converter
Convert times across world time zones. Perfect for scheduling remote meetings.
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Date Calculator
Calculate the number of days between two dates, or add and subtract from a date.
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💻 Developer Tools
JSON Formatter
Format, validate, and beautify JSON with syntax highlighting. Minify or prettify instantly.
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JSON Converter
Convert JSON to CSV, XML, or YAML. Download the converted output for spreadsheets, config files, or legacy systems.
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JSON Diff
Compare two JSON objects side by side. See added, removed, and changed keys instantly.
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Base64 Encoder / Decoder
Encode text or files to Base64, or decode Base64 strings back to plain text.
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JWT Decoder
Decode JSON Web Tokens to inspect the header, payload, claims, and expiry date.
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URL Encoder / Decoder
Encode special characters for URLs or decode percent-encoded strings instantly.
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Hash Generator
Generate MD5, SHA-1, SHA-256, and other hash digests from text or files.
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Color Converter
Convert colors between HEX, RGB, HSL, and CSS formats with a live preview.
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Number Base Converter
Convert numbers between binary, decimal, hexadecimal, and octal bases.
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UUID Generator
Generate UUIDs/GUIDs in v1, v4, or v7. Bulk generate up to 100, copy or download.
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Lorem Ipsum Generator
Generate placeholder text in paragraphs, sentences, words, or HTML. Multiple styles available.
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QR Code Generator
Generate QR codes for URLs, text, email, Wi-Fi, phone, and SMS. Download as PNG or SVG.
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Random String Generator
Generate secure random strings, passwords, API keys, and tokens with full character set control.
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Meta Tag Generator
Generate SEO meta tags, Open Graph, and Twitter Cards with live Google and social preview.
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🧪 Testers & Validators
Regex Tester
Test regular expressions with real-time highlighting, capture groups, and find-and-replace.
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CRON Explainer
Paste a cron expression and get a plain-English explanation plus the next 5 run times.
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SQL Formatter
Format messy SQL with proper indentation and syntax highlighting. Supports all major dialects.
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CSS Minifier / Beautifier
Minify CSS to reduce file size or beautify it for readability. See savings percentage instantly.
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HTML Beautifier / Minifier
Format HTML with proper indentation or minify it for production. Syntax highlighted output.
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XML Formatter / Validator
Format, validate, and minify XML documents with syntax highlighting and error detection.
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🌐 Network & Reference
HTTP Status Codes
Complete reference of all HTTP status codes with plain-English descriptions. Searchable and filterable.
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MIME Type Lookup
Look up MIME types by file extension or find extensions for a given content type.
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IP Address Lookup
Look up geolocation, ISP, and network info for any IP address — or detect your own.
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DNS Lookup
Query DNS records for any domain — A, AAAA, MX, TXT, CNAME, NS, SOA, and CAA.
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Ping Test
Measure HTTP response latency to any public URL with live stats and a latency chart.
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📚 Developer Articles & Guides
Learn about Base64, JWTs, regex, hashing, CSS colors, and more — with practical examples and working tools.
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What is ToolPlex?
ToolPlex is a free, growing collection of online tools designed for everyday tasks. Whether you need to convert units, calculate a percentage, check your BMI, or count words in a document — ToolPlex has a tool for that. No account needed, just instant results in your browser.
Why Use ToolPlex?
All ToolPlex tools run entirely in your browser — nothing is sent to a server. They're fast, private, and always free. We're constantly adding new tools based on what people actually search for, so bookmark this page and check back often.