MaisTools

Free Online Tools

53 free tools

Security

(4)
Security/Password GeneratorGenerate strong, secure passwords instantly in your browser.Security/Text EncryptorEncrypt and decrypt text with multiple algorithms, directly in your browser.Security/Hash GeneratorCompute cryptographic hashes from text or any file, entirely in your browser.Security/Text ScramblerScramble and unscramble text with a secret key.

Productivity

(10)
Productivity/Markdown PreviewWrite Markdown and see the rendered HTML preview in real time.Productivity/QR Code GeneratorGenerate QR codes from text or links, directly in your browser.Productivity/Color ConverterConvert colors between HEX, RGB, HSL, HSV, and CMYK formats instantly in your browser.Productivity/Markdown EditorWrite Markdown with a formatting toolbar and live preview — import, export, and copy as Markdown or HTML.Productivity/Stopwatch & TimerTrack elapsed time with laps or set a countdown with an audible alarm.Productivity/Text DiffPaste two texts to see line-by-line differences.Productivity/Random PickerPaste a list of items — one per line — and pick one at random.Productivity/CalendarNavigate between months and view the calendar with today highlighted.Productivity/Color PickerUpload an image and click to extract colors from any point.Productivity/Color PaletteUpload an image and automatically extract a color palette with your chosen number of colors.

Developer

(10)
Developer/JSON FormatterFormat, validate, and minify JSON directly in your browser.Developer/UUID GeneratorGenerate UUID v4 identifiers instantly in your browser.Developer/What Is My IPFind your public IP address along with location, ISP, and timezone information.Developer/Text to SlugConvert text into a clean, URL-friendly slug.Developer/Lorem Ipsum GeneratorGenerate lorem ipsum placeholder text for your designs and mockups.Developer/Base64 Encoder / DecoderEncode text to Base64 and decode Base64 strings back to text — UTF-8 safe, URL-safe option.Developer/Regex TesterTest JavaScript regular expressions with live highlighting and capture groups.Developer/JSON ViewerPaste JSON to explore it as a collapsible tree with color-coded values.Developer/Token EstimatorEstimate the token count of your text for any modern language model.Developer/XML ViewerPaste XML to explore it as a collapsible tree with highlighted elements, attributes and values.

Media

(8)
Media/Image to ICO ConverterConvert images to ICO format with multiple sizes, directly in your browser.Media/Image ResizerResize images to any dimension and download them instantly in your browser.Media/Black & White Image ConverterConvert any image to black and white or grayscale directly in your browser.Media/Image ViewerOpen and view images directly in your browser — no upload, no data sent.Media/Sound CutterCut audio files directly in your browser, no installation needed.Media/Image CompressorCompress images and reduce file size with adjustable quality — runs entirely in your browser.Media/Noise Texture GeneratorGenerate procedural noise textures with Perlin or Simplex algorithms. Configure octaves, scale and seed, then download as PNG.Media/ICO ViewerView the contents of an ICO file and inspect every embedded size.

Text & Numbers

(8)
Text & Numbers/Random Number GeneratorGenerate random numbers between any range, integers or decimals, directly in your browser.Text & Numbers/Word CounterCount words, characters, lines, and paragraphs in real time.Text & Numbers/Roman NumeralsConvert numbers to Roman numerals and from Roman numerals to numbers.Text & Numbers/CounterCount up or down with a simple, fast online counter.Text & Numbers/Remove AccentsRemove accents from your text directly in your browser.Text & Numbers/Text Case ConverterConvert your text to uppercase, lowercase, title case, camelCase, snake_case, kebab-case and more — instantly.Text & Numbers/Random LetterGenerate a random letter from the alphabet with options for case, vowels, and consonants.Text & Numbers/Morse CodeConvert text to Morse code and Morse code back to text.

Calculator

(7)
Calculator/Unit ConverterConvert between dozens of units across 8 categories, directly in your browser.Calculator/Rule of ThreeCalculate the missing value using the simple rule of three (cross multiplication).Calculator/Age CalculatorCalculate your exact age in years, months, and days from your birth date.Calculator/Percentage CalculatorCalculate percentages, find percent of a value, or get the percentage change.Calculator/Angle ConverterConvert angles between degrees, radians, gradians, arc minutes, arc seconds and revolutions.Calculator/Tip CalculatorCalculate the tip and split the bill between multiple people.Calculator/Scientific NotationConvert numbers to scientific notation and display the mantissa and exponent.

Other

(6)
Other/Meme GeneratorCreate memes with custom text at the top and bottom of any image.Other/Guess the NumberFind the secret number between 1 and 100 in as few guesses as possible.Other/Tic-Tac-ToeTic-Tac-Toe for two players. X and O randomly assigned each game.Other/ASCII Art MakerDraw ASCII art using pencil, eraser and fill tools. Copy the result.Other/8-bit / 16-bit Image ConverterConvert images to retro 8-bit or 16-bit style with a reduced color palette.Other/8-bit Sound GeneratorGenerate retro 8-bit chiptune sounds with wave selection, pitch, duration and ADSR envelope.