All Tools
Browse our complete collection of 47 free online tools
BMI Calculator
Calculate your Body Mass Index with visual gauge chart
550K searches/moCalorie Calculator
Estimate daily calories for weight loss, maintenance, or gain
450K searches/moGPA Calculator
Calculate your GPA by adding courses with credits and grades
200K searches/moCitation Generator
Generate perfectly formatted APA, MLA, or Chicago citations
165K searches/moMerge PDF
Combine multiple PDF files into one document
135K searches/moYouTube Thumbnail Downloader
Download HD, max res, and standard YouTube thumbnails
135K searches/moPercentage Calculator
Calculate percentages, percentage increase/decrease, and more
120K searches/moPDF to JPG
Convert PDF pages to high-quality JPG images
110K searches/moPregnancy Due Date Calculator
Calculate your estimated due date based on last menstrual period
90K searches/moAge Calculator
Calculate exact age in years, months, days from birth date
90K searches/moInvoice Generator
Create professional invoices and download as PDF
90K searches/moHashtag Generator
Generate 30 relevant hashtags for any topic
90K searches/moColor Picker
Pick colors and get HEX, RGB, HSL values
80K searches/moCurrency Converter
Convert between world currencies
80K searches/moPassword Generator
Generate strong, secure passwords
70K searches/moLoan Calculator
Calculate monthly payments and total interest
65K searches/moBusiness Name Generator
Generate startup name ideas from your keywords
60K searches/moWord Counter
Count words, characters, sentences, paragraphs
60K searches/moQR Code Generator
Create QR codes for any text, URL, or data
55K searches/moBMR Calculator
Calculate your Basal Metabolic Rate
45K searches/moJSON Formatter
Format, validate, and minify JSON data
45K searches/moUnit Converter
Convert between all common units of measurement
45K searches/moAnagram Solver
Find all possible words from your letters - great for word games
40K searches/moMargin & Markup Calculator
Calculate profit margins and markup percentages
40K searches/moBase64 Encoder/Decoder
Encode or decode Base64 strings instantly
35K searches/moTip Calculator
Calculate tips and split bills
35K searches/moProtect PDF
Add password protection to your PDF files
30K searches/moPayPal Fee Calculator
Calculate exact PayPal fees and what you'll receive
27K searches/moURL Encoder/Decoder
Encode URLs for safe web transmission
25K searches/moHash Generator
Generate MD5, SHA-1, SHA-256 hashes
25K searches/moBinary Converter
Convert between binary, decimal, hex, octal
25K searches/moWater Intake Calculator
Get personalized daily hydration recommendations
22K searches/moSplit PDF
Split a PDF into multiple separate files
22K searches/moCase Converter
Convert text between different cases
22K searches/moImage to Base64
Convert images to Base64 data URLs
20K searches/moRegex Tester
Test and debug regular expressions
20K searches/moAdd Page Numbers to PDF
Add page numbers to your PDF documents
18K searches/moYouTube Tags Extractor
Extract hidden tags from any YouTube video
18K searches/moText to Slug
Convert text to URL-friendly slugs
18K searches/moUUID Generator
Generate unique UUIDs v1, v4, and v7
18K searches/moUnlock PDF
Remove password protection from PDF files
15K searches/moHTML Entity Encoder
Encode HTML special characters
15K searches/moDiff Checker
Compare two texts and find differences
15K searches/moReading Time Calculator
Estimate how long it takes to read any text out loud
12K searches/moTweet to Image Converter
Convert tweets to beautiful shareable images
12K searches/moCron Expression Parser
Parse and validate cron expressions
12K searches/moInstagram Caption Spacer
Format Instagram captions with proper line breaks
8K searches/mo