All tools

Compress JPG, PNG and WebP images to a smaller file size in your browser.

Resize images to exact pixel dimensions or scale them by percentage.

Crop images to any area or a fixed aspect ratio with a visual editor.

Convert images between JPG, PNG and WebP — in any direction, in one place.

Convert an image into a Base64 data URI for use in CSS, HTML or JSON.

Inspect the EXIF data hidden inside a photo — camera, settings, date and GPS.

Make an image background transparent, entirely in your browser.

Add a text watermark to a photo at full resolution, in your browser.

Add classic top and bottom captions to any image, in your browser.

Turn part of a video into an animated GIF, entirely in your browser.

Capture a still image from any moment in a video, at full resolution.

Combine multiple PDF files into a single document, in any order.

Extract pages or page ranges from a PDF into new documents.

Rotate PDF pages 90, 180 or 270 degrees — all pages or just some.

Convert PDF pages into JPG images at your chosen resolution.

Turn JPG photos into a single PDF document with page size and margin options.

Convert PNG images into a PDF document with layout and background options.

Reduce PDF file size so documents fit under email and upload limits.

Count words, characters, sentences, lines and reading time as you type.

Convert text between UPPERCASE, Title Case, camelCase, snake_case and more.

Strip duplicate lines, extra spaces, HTML tags and smart quotes from text.

Sort lines alphabetically, numerically or by length — or shuffle and reverse them.

Convert text to and from binary, hexadecimal, Morse code and Unicode escapes.

Compare two texts and see exactly which lines were added, removed or changed.

Format, validate, minify and convert JSON to CSV, YAML and XML.

Encode and decode Base64, URL percent-encoding and HTML entities.

Test regular expressions with live match highlighting and capture groups.

Convert Unix timestamps to dates and back, in any unit.

Decode a JWT's header and payload, and check its expiry — no secret required.

Indent, minify and validate XML — comments and CDATA survive untouched.

Re-indent, compact and validate YAML — config files, Kubernetes manifests, CI pipelines.

Convert Markdown to HTML with a live preview, or pull HTML back into clean Markdown.

Format SQL queries with proper indentation, across a dozen database dialects.

Format or minify CSS without corrupting strings and data URIs.

Build a flex layout visually and copy the CSS.

Design a CSS grid layout visually and copy the CSS.

Build, check and understand cron schedules, with the next run times.

Turn a JSON sample into type definitions for six languages.

Generate UUIDs in bulk — random v4 or time-ordered v7 identifiers.

Convert length, weight, volume, temperature, data and more between any units.

Work out percentages, discounts, tax and tips — with the working shown.

Calculate the time between dates, someone's age, or a date in the future.

Loan repayments, compound interest, profit margin, break-even and ROI.

Roots, exponents, factorials, GCD, LCM, primes and factorisation.

Mean, median, mode, standard deviation, quartiles and outliers from any data set.

Read a resistor's colour bands, or find the bands for a target value.

Enter any two of voltage, current, resistance and power to find the other two.

Find Vout from two resistors, or solve for the resistor a target Vout needs.

Find the series resistor an LED needs, from supply voltage, forward voltage and target current.

AWG wire diameter, cross-section and resistance, plus voltage drop over a run.

Type a chemical formula and get its molar mass, broken down element by element.

Solve for moles, volume or molarity — enter any two, get the third.

C1V1 = C2V2 — enter any three values to find the fourth, for diluting a stock solution.

Convert between pH, pOH, [H⁺] and [OH⁻] — with an acidic/neutral/basic read.

PV = nRT — solve for pressure, volume, amount or temperature, given the other three.

The Moon's phase, illumination percentage and age for any date.

Sunrise, sunset, solar noon and day length for any place and date.

Convert between a calendar date and the continuous day count astronomy uses.

The dates and UTC times of all four equinoxes and solstices for any year.

What you'd weigh on the Moon, Mars, Jupiter and every other body in the solar system.

Create QR codes for links, text, Wi-Fi networks and contact details.

Pull the real colour palette out of any image, ordered by coverage.

Convert a colour between HEX, RGB, HSL, HSV, CMYK and OKLCH.

Build harmonious colour palettes from one base colour, ready to copy as CSS.

Check any colour pairing against the WCAG AA and AAA contrast requirements.

Build CSS gradients, box shadows, text shadows and border radii visually.

Build a soft, multi-colour mesh gradient by placing colour points on a canvas.

Frosted-glass CSS cards — blur, tint and border, with a live preview over a real backdrop.

Soft UI shadows in any colour — raised, pressed, convex or concave.

Generate a smooth, organic SVG blob shape — solid or gradient fill, downloadable.

See an image or a colour palette the way protanopia, deuteranopia or tritanopia would.

Generate strong random passwords and memorable passphrases.

Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or files.

Generate meta, Open Graph and Twitter tags with a live search preview.

Build and validate a robots.txt file, and test which paths are blocked.

Find which words and phrases your text actually emphasises.

Build tag and hashtag lists that fit each platform's character budget.

Current image dimensions and safe zones for every major platform.

Count captions and posts the way each platform actually counts them.

Convert mouse sensitivity between games and work out your cm/360.

BMI, calorie needs, body fat and ideal weight in one place.

Work out paint, tiles, flooring and concrete before you buy.

Convert cups to grams by ingredient, scale recipes and convert oven temperatures.