Over 135 free online tools to calculate, convert, generate, and validate
Generators, calculators, and converters that run directly in your browser. No installation, no registration, completely free.
Featured tools
The most searched tools for daily life, studies, and work.
CPF Generator
Generate valid and fictitious CPF numbers for testing, or validate an existing CPF and see the origin status, all in the same tool.
AbrirGerador de Pessoa Fictícia
Gere uma identidade fictícia completa (nome, CPF, RG, data de nascimento, endereço, telefone e email) para testar sistemas, grátis e sem cadastro.
AbrirPassword Generator
Create strong, random passwords in seconds and test the strength of passwords you already use, directly in your browser and without registering.
AbrirQR Code Generator
Create free QR Code from text, link, email or phone and download the PNG image instantly.
AbrirCharacter Counter
Count characters, words, lines and paragraphs in real time and see the limits of social networks, free and without registration.
AbrirPercentage Calculator
Calculate percentage, discount, increase and percentage change online for free, with the result explained step by step.
AbrirNet Salary Calculator
Calculate your exact net salary in 2024 and 2026, with updated INSS and IRRF discounts step by step.
AbrirUnemployment Insurance Calculator
Find out how many installments and the value of your Unemployment Insurance with the updated 2024 rules.
AbrirFinancing Calculator (Price and SAC)
Simulate your real estate or vehicle financing by comparing the Price Table (fixed installments) and SAC (decreasing installments).
AbrirCurrency Converter
Convert real, dollar, euro, pound, Argentine peso and bitcoin with live quotes, free and without registration.
AbrirDownload Video from Instagram
Download videos and Reels from Instagram via the link, in HD and without watermarks. Free, online and no login required.
AbrirDownload Instagram Reels
Download Instagram Reels in HD, with original audio and music, from the public reel link, without login and without watermark.
AbrirRegular Expression Tester (Regex)
Test and validate your regular expressions (Regex) in real time against example texts.
AbrirPDF to JPG
Extract all pages from a PDF into JPG image format separately.
AbrirJPG to PDF
Merge multiple JPG/JPEG photos into a single PDF document in seconds.
AbrirCompress Image
Reduce the size (KB/MB) of JPG, PNG and WEBP files without losing visible quality.
AbrirYouTube Video Downloader
Download YouTube videos in MP4 or MP3 for free.
AbrirExplore by category
Choose a category and find the right tool for your needs.
Generators
Online generators for various purposes
22 ferramentasText
Text editing and manipulation tools
11 ferramentasCalculators
Online calculators for math, finance and more
28 ferramentasImage
Free image editing and conversion: compressors, resizers, croppers, filters and format changes.
22 ferramentasFree tools to merge, split, convert and watermark PDF files right in your browser.
8 ferramentasConverters
Convert files, units, and formats online
18 ferramentasTests & Fun
Fun tests, games and interactive tools
9 ferramentasDownloads
Download media from social networks
6 ferramentasDev
Developer tools and utilities
11 ferramentasSearch what you need
Type a name or topic and find the tool instantly.
CPF Generator
Generate valid and fictitious CPF numbers for testing, or validate an existing CPF and see the origin status, all in the same tool.
AbrirGeneratorsGerador de Pessoa Fictícia
Gere uma identidade fictícia completa (nome, CPF, RG, data de nascimento, endereço, telefone e email) para testar sistemas, grátis e sem cadastro.
AbrirGeneratorsCPF Validator
Check whether a CPF is valid immediately: the tool tests the check digits and shows the state of origin of the number.
AbrirGeneratorsCNPJ generator
Generate a valid CNPJ for testing, or validate an existing CNPJ, with formatting, batch and matrix or branch option, free of charge.
AbrirGeneratorsPassword Generator
Create strong, random passwords in seconds and test the strength of passwords you already use, directly in your browser and without registering.
AbrirGeneratorsQR Code Generator
Create free QR Code from text, link, email or phone and download the PNG image instantly.
AbrirGeneratorsWhatsApp Link Generator
Create a direct WhatsApp link with a ready-made message and QR Code to place in your bio, on your website or in your ads.
AbrirGeneratorsOnline Drawer
Draw names or random numbers online, for free, with the option not to repeat and history of results.
AbrirGeneratorsNick Generator
Create stylized nicknames for Free Fire and other games with different symbols and fonts, free and ready to copy.
AbrirGeneratorsName Generator
Generate random names for your baby, user, company or band in seconds, for free and without registration.
AbrirGeneratorsThe generator of Lorem Ipsum
Generate free Lorem Ipsum text in paragraphs, sentences or words to fill your layouts and prototypes.
AbrirDevUUID Generator
Generate UUID v4 (RFC 4122) identifiers online, one or up to 50 at once, with capitalization option and copy button.
AbrirDevHash Generator
Calculate MD5, SHA-1 and SHA-256 hash of any text online, in real time and directly in the browser, without registration.
AbrirGeneratorsCredit Card Generator
Generate valid credit card numbers through Luhn, by brand, just to test forms and systems.
AbrirGeneratorsID Generator
Generate fictitious ID numbers with check digits, in batches and with or without punctuation, to test registrations and systems, free of charge and without registration.
AbrirGeneratorsPlate Generator
Generate vehicle license plates in the Mercosul standard and in the old format to test systems, free of charge and without registration.
AbrirGeneratorsEmail Signature Generator
Create a professional HTML email signature and copy it ready to paste into Gmail or Outlook, for free.
AbrirGeneratorsColor Palette Generator
Create random or harmonious color palettes, lock in your favorite tones and copy the HEX code of each color.
AbrirGeneratorsTeam Generator
Draw random, balanced teams from a list of names, free of charge and in just a few seconds.
AbrirGeneratorsCNPJ Validator
Check online and for free whether a CNPJ number is mathematically valid or whether it was entered incorrectly.
AbrirGeneratorsZIP Code Generator by State
Generate valid ZIP codes by State (UF) for filling out forms and software testing.
AbrirGeneratorsBarcode Generator
Create customized 1D barcodes (EAN-13, UPC, Code 128) for products and download in SVG format.
AbrirGeneratorsCompany Generator
Generate fictitious and coherent data from Brazilian companies — CNPJ, State Registration, company name, address, telephone and email — all validated for software testing.
AbrirGeneratorsSortear Número Aleatório
Sorteie um número aleatório dentro do intervalo que você definir.
AbrirTextCharacter Counter
Count characters, words, lines and paragraphs in real time and see the limits of social networks, free and without registration.
AbrirTextDifferent Letters
Convert your text into dozens of different font styles to copy and paste into your nickname, bio and social media.
AbrirTextCase Converter
Convert texts to UPPER CASE, lower case, title, remove accents or invert letters, free and instantly.
AbrirDevJSON Formatter
Format, validate and minify JSON online, with instant syntax error warning, object statistics and export to TypeScript interface.
AbrirDevBase64 e URL Encode
Encode and decode Base64 and URL Encode (percent encoding) online, both ways, with automatic detection of JWT, Data URI and URL parameters.
AbrirDevText Comparator
Compare two texts side by side and see what was added and removed, highlighted line by line, for free.
AbrirTextRemove Duplicate Rows
Remove duplicate lines from your list in seconds, with options to sort, clear blanks and count items.
AbrirTextEmail and Phone Extractor
Extract emails, phone numbers and URLs from any pasted text, without duplicates and ready to copy, free.
AbrirTextBio Generator for Instagram
Create a beautiful and organized bio for Instagram with ready-made templates, emojis and 150 character count.
AbrirTextEmojis to Copy
Copy emojis with one click: more than 90 emojis organized by category, with search by name, free and without registration.
AbrirTextMirror and Reverse Text
Invert and mirror any text instantly to use in nicknames, bios and games, for free and without registration.
AbrirTextAccent Remover
Remove accents, cedillas and special characters from any text instantly.
AbrirTextLine Counter
Count the number of lines in your text, code or list and remove empty lines automatically.
AbrirTextSearch and Replace Text
Advanced tool for searching and swapping words in large blocks of text, including Regex (Regular Expressions) support.
AbrirCalculatorsPercentage Calculator
Calculate percentage, discount, increase and percentage change online for free, with the result explained step by step.
AbrirCalculatorsRule of Three
Calculate simple, direct and inverse rule of three online for free, with the value of X and the step-by-step calculation.
AbrirCalculatorsAge Calculator
Find out your exact age in years, months and days and count how many days until any date.
AbrirCalculatorsCompound Interest Calculator
Simulate compound interest with a monthly contribution and see the final value, total invested and interest month by month.
AbrirCalculatorsTermination Calculator
Estimate your employment termination with salary, dates and type of departure in seconds, free and without registration.
AbrirCalculatorsVacation Calculator
Calculate the value of your holidays with the constitutional third, sale of proportional days and holidays, free of charge.
AbrirCalculators13th Salary Calculator
Calculate the 13th salary proportional to the months worked and see the two installments and the estimated discounts.
AbrirCalculatorsHours Calculator
Add and subtract hours, calculate the hours worked in the month and estimate the value of overtime at 50% and 100%, free.
AbrirCalculatorsBMI Calculator
Calculate your free BMI with weight and height and instantly see the WHO classification range in a visual bar.
AbrirCalculatorsPregnancy Calculator
Calculate the weeks of pregnancy, trimester and likely due date using the date of your last period.
AbrirCalculatorsFuel Calculator
Calculate the fuel cost of your trip and find out whether it's better to fill up with alcohol or gasoline.
AbrirCalculatorsDiscount Calculator
Calculate the final discounted price and see how much you save on your purchase, for free and in seconds.
AbrirCalculatorsSplit Account
Split the bar or restaurant bill between several people, include the tip and see how much each person pays.
AbrirCalculatorsFraction Calculator
Add, subtract, multiply and divide fractions online and see the simplified result with the step-by-step calculation.
AbrirCalculatorsMMC e MDC
Calculate the MMC and MDC of various numbers online for free, with factorization and step-by-step results.
AbrirCalculatorsSquare Root Calculator
Calculate the square, cubic or nth root of any number online, with results and steps, for free.
AbrirCalculatorsBusiness Days Calculator
Count the business days between two dates online, already discounting weekends and national holidays.
AbrirCalculatorsNote Calculator
Calculate the percentage of correct answers and your test grade and see how many correct answers are left for the average.
AbrirCalculatorsNet Salary Calculator
Calculate your exact net salary in 2024 and 2026, with updated INSS and IRRF discounts step by step.
AbrirCalculatorsOvertime Calculator
Calculate the value of your overtime and its impact on the DSR online and for free. Enter your salary and number of hours.
AbrirCalculatorsUnemployment Insurance Calculator
Find out how many installments and the value of your Unemployment Insurance with the updated 2024 rules.
AbrirCalculatorsFGTS calculator
Calculate your accumulated FGTS balance and the value of the 40% termination fine for unfair dismissals.
AbrirCalculatorsSimple Interest Calculator
Discover the value of simple interest and the final amount based on initial capital, rate and time.
AbrirCalculatorsFinancing Calculator (Price and SAC)
Simulate your real estate or vehicle financing by comparing the Price Table (fixed installments) and SAC (decreasing installments).
AbrirCalculatorsDays Between Dates Calculator
Find out the exact number of business days, calendar days, weeks and months between two dates.
AbrirCalculatorsMEI Simulator vs National Simples
Find out if your billing falls under the MEI and calculate the tax savings compared to Simples Nacional.
AbrirCalculatorsCLT vs PJ Calculator
Find out the exact amount you need to charge as a PJ to have the same standard of living and benefits as a CLT salary.
AbrirCalculatorsBMR Calculator
Calculate your Basal Metabolic Rate (BMR) and know how many calories you burn daily at rest.
AbrirConvertersUnit Converter
Convert length, weight, temperature, speed, area, volume and data instantly, for free and without registration.
AbrirConvertersNumber by Extensive
Transform any number into words instantly and write amounts in reais in words for checks and contracts.
AbrirConvertersCurrency Converter
Convert real, dollar, euro, pound, Argentine peso and bitcoin with live quotes, free and without registration.
AbrirConvertersTime Zone Converter
See the current time in cities around the world and convert times between two zones quickly and free of charge.
AbrirConvertersRoman Numerals Converter
Convert numbers to Roman numerals and Roman numerals instantly, for free and with the rules explained.
AbrirConvertersBinary and Hexadecimal Converter
Convert numbers between binary, octal, hexadecimal and decimal and transform text into binary instantly, for free.
AbrirConvertersImage Converter
Convert images between JPG, PNG, WebP, AVIF, BMP, GIF, and more. Resize and compress your photos for free, right in your browser.
AbrirConvertersMerge and Split PDF
Merge multiple PDFs into one or split a PDF into pages, free and directly in the browser, without sending anything.
AbrirConvertersExcel to CSV Converter
Convert XLSX and XLS spreadsheets to CSV (Comma Separated Values) universal text format.
AbrirConvertersExcel to JSON Converter
Transform Excel tabular data into JSON arrays ready to be used in APIs and Databases.
AbrirConvertersCSV to Excel Converter
Convert raw CSV files into XLSX spreadsheets ready for editing in Microsoft Excel or Google Sheets.
AbrirConvertersConversor de Dados Digitais
Converta unidades de armazenamento como MB, GB e TB na hora.
AbrirConvertersConversor de Comprimento
Converta unidades de comprimento como metros, centímetros e polegadas na hora.
AbrirConvertersConversor de Peso e Massa
Converta unidades de peso e massa como kg, gramas e libras na hora.
AbrirConvertersConversor de Temperatura
Converta temperaturas entre Celsius, Fahrenheit e Kelvin na hora.
AbrirConvertersConversor de Área
Converta unidades de área como m², hectare e km² na hora.
AbrirConvertersConversor de Volume
Converta unidades de volume como litros, mililitros e m³ na hora.
AbrirConvertersConversor de Velocidade
Converta unidades de velocidade como km/h, m/s e mph na hora.
AbrirTests & FunOnline Stopwatch
Free online stopwatch and timer, with lap marking, time presets, full screen and audible alarm.
AbrirTests & FunCoin Flip
Flip a coin online for free to break any tie instantly.
AbrirTests & FunOnline Dice Roller
Roll virtual dice (D4, D6, D8, D10, D12, D20) with free 3D animations.
AbrirTests & FunDecision Roulette
Create a custom wheel to draw names or options. Spin it and let luck decide.
AbrirTests & FunCPS Test (Clicks Per Second)
Measure how many clicks per second you make in 1, 5 or 10 seconds and beat your CPS record.
AbrirTests & FunTyping Test
Measure your typing speed in words per minute and your accuracy, free and with texts in Portuguese.
AbrirTests & FunOnline Metronome
Free online metronome with adjustable BPM and time signature to practice rhythm right in the browser.
AbrirTests & FunSound, Microphone and Webcam Test
Test sound, microphone and webcam online for free: check that everything works before meetings and video calls.
AbrirTests & FunOnline Timer
Set a custom alarm or countdown to increase focus and manage your time.
AbrirDownloadsDownload Video from Instagram
Download videos and Reels from Instagram via the link, in HD and without watermarks. Free, online and no login required.
AbrirDownloadsDownload Photo from Instagram
Download photos and carousels of public Instagram posts in high resolution, free, without login and directly from the link, on your cell phone or PC.
AbrirDownloadsDownload Instagram Reels
Download Instagram Reels in HD, with original audio and music, from the public reel link, without login and without watermark.
AbrirDevURL Encoder / Decoder
Securely encode or decode parameters and URL strings.
AbrirDevUnix Timestamp Converter
Convert Unix Timestamps to human-readable dates or generate current timestamp.
AbrirDevRegular Expression Tester (Regex)
Test and validate your regular expressions (Regex) in real time against example texts.
AbrirDevCode Minifier
Minify and compress CSS, JavaScript, and HTML code to speed up your site.
AbrirDevCron Expression Generator
Create and translate CRON expressions easily with our interactive interface.
AbrirDevCSV ↔ JSON Converter
Instantly convert CSV spreadsheets to JSON format or JSON Arrays to CSV file.
AbrirPDFWatermark on PDF
Insert a watermark (translucent text) on every page of your PDF.
AbrirPDFPDF to Text
Extract and copy all text contained within a PDF file.
AbrirPDFPDF to PNG
Extract PDF pages as PNG images without quality loss.
AbrirPDFPDF to JPG
Extract all pages from a PDF into JPG image format separately.
AbrirPDFPNG to PDF
Convert and combine transparent or regular PNG images to PDF format.
AbrirPDFJPG to PDF
Merge multiple JPG/JPEG photos into a single PDF document in seconds.
AbrirImageImage Filters
Apply quick Black and White, Sepia, Blur, Brightness and Contrast adjustments to your photos.
AbrirImageAdd Watermark
Protect your images by placing translucent text or logo over them.
AbrirImageRotate and Mirror Image
Rotate photos lying down or mirror horizontally to create effects or fix the front camera.
AbrirImageCrop Image
Easily crop unwanted parts of a photo. Use free cuts or exact proportions like Square (1:1).
AbrirImageResize Image
Change the width and height in pixels of any photo without distorting.
AbrirImageCompress Image
Reduce the size (KB/MB) of JPG, PNG and WEBP files without losing visible quality.
AbrirImageICO para PNG
Extract the original PNG image from within native Windows icons (.ico).
AbrirImagePNG to ICO (Icon)
Transform PNG logo files directly into ICO format for use in favicons and Windows systems.
AbrirImageBMP to JPG
Reduce heavy Bitmap (BMP) files to compressed JPG files without installing anything.
AbrirImageSVG to JPG
Convert SVG vector graphics to JPG images quickly.
AbrirImageWEBP para JPG
Convert WEBP files to standard JPG photos easily and ensure they are accepted anywhere.
AbrirImageWEBP for PNG
Convert WEBP files downloaded from the internet back to universal PNG format instantly.
AbrirImagePNG para JPG
Quickly transform PNG images to JPG to reduce size or make sharing easier.
AbrirImageJPG para PNG
Convert JPG and JPEG images to PNG in high quality and without losing details, 100% free and offline.
AbrirImageSVG to PNG Converter
Convert SVG vector files to PNG raster images while maintaining transparency and high quality.
AbrirImagePNG to WEBP Converter
Optimize your images with transparent backgrounds by converting from PNG to the super lightweight WEBP format.
AbrirImageJPG to WEBP Converter
Convert photos and JPEG images to WEBP. Save space on your website without losing visual details.
AbrirPDFMerge PDF
Combine multiple PDF files into a single document, choosing the order you want.
AbrirPDFSeparate PDF
Extract specific pages or split a large PDF document into smaller parts.
AbrirImageHEIC to JPG Converter
Convert iPhone photos (.heic format) to JPG privately, quickly and losslessly.
AbrirImageHEIC to PNG Converter
Convert Apple HEIC files to high-quality PNG while maintaining transparency.
AbrirImageFavicon Generator
Create complete web icon packs (favicon.ico, apple-touch-icon) from any PNG/JPG image.
AbrirImageImage to Base64
Quickly generate the Base64 code (data URI) of any image to embed it directly in HTML or CSS.
AbrirImageBase64 for Image
Paste a Base64 string to view the decoded image on the fly and download the original file.
AbrirDownloadsYouTube Video Downloader
Download YouTube videos in MP4 or MP3 for free.
AbrirDownloadsTwitter (X) Video Downloader
Download videos from Twitter easily.
AbrirDownloadsFacebook Video Downloader
Save public Facebook videos.
Abrir100% Free
All tools are free, with no usage limits and no account required.
Runs in browser
Your data doesn't leave your device. All processing happens on your own computer.
Fast and practical
Lightweight tools that load instantly and work great on mobile and desktop.
Perguntas Frequentes
Dúvidas comuns sobre o uso das nossas ferramentas.
O site é totalmente gratuito?
Sim, todas as ferramentas disponíveis no Ferramenta Grátis são 100% gratuitas, sem taxas ocultas ou limites de uso restritivos.
Preciso instalar algum programa?
Não. Todas as calculadoras, conversores e geradores funcionam diretamente no seu navegador, pelo celular ou pelo computador.
Os dados que eu digito são salvos no servidor?
Na grande maioria das vezes, não. A maioria das ferramentas processa os dados localmente no seu dispositivo. Quando alguma ferramenta exigir contato com nossos servidores (ex: converter imagem complexa), isso estará explícito na página.
Como faço para reportar um erro em uma calculadora?
Você pode usar a página de Contato para nos avisar. Analisaremos o erro e aplicaremos a correção baseada nas fontes oficiais correspondentes.