Free tools that stay on your device

Convert between square meters, square feet, acres, hectares, square kilometers, square miles, and square yards.

Remove image backgrounds and export transparent PNGs directly in your browser with zero uploads.

Generate customizable Code 128, EAN-13, UPC-A, and Code 39 barcodes with SVG, PNG, and print sheet exports.

Encode and decode text or files to and from Base64 format with full UTF-8 support.

Convert text and numbers between ASCII text, Binary (base 2), Hexadecimal (base 16), Decimal (base 10), and Octal (base 8) with real-time bidirectional syncing.

Design multi-layer, soft, neon, and inset CSS box shadows with real-time preview, interactive sliders, presets, and 1-click CSS and Tailwind export.

Convert color values between HEX, RGB, RGBA, HSL, HSLA, HSV, and CMYK with a visual color picker and WCAG contrast rating.

Generate harmonious color schemes with lockable color swatches, harmony rules (analogous, complementary, triadic, monochromatic), and instant CSS, Tailwind, or PNG export.

Design beautiful linear, radial, and conic CSS gradients with real-time preview, multi-color stops, presets, and 1-click CSS and Tailwind code export.

Convert bidirectional data between CSV and JSON formats with auto delimiter detection, table previews, and client-side downloads.

Convert between Bytes, Kilobytes (KB), Megabytes (MB), Gigabytes (GB), Terabytes (TB), and binary units (KiB, MiB, GiB).

Calculate exact age, duration between two dates, business working days, and date offsets client-side.

Compare two text or code files with instant side-by-side and inline visual diffs, character-level additions and deletions, and line statistics.

Play the classic 2048 number puzzle game directly in your browser. Slide tiles using arrow keys or touch swipes to combine numbers and reach 2048.

Design modern frosted glass UI elements with interactive backdrop-filter blur, opacity, border sheen, saturation, and 1-click CSS and Tailwind export.

Generate SHA-256, SHA-512, SHA-384, SHA-1, and MD5 hashes for text and files directly in your browser.

Pick pixel-exact colors from any image using an interactive loupe magnifier, view HEX, RGB, and HSL values, and extract dominant color palettes.

Compress JPG, PNG, and WebP images client-side with batch multi-file drop, adjustable quality, and instant savings preview.

Convert images between WebP, PNG, JPG, and other formats client-side with quality compression, dimension scaling, and instant downloads.

Flip images horizontally or vertically, rotate by 90-degree steps or custom angles, and export at full crystal-clear original resolution.

Resize JPG, PNG, and WebP images by exact pixel dimensions or percentage with aspect ratio lock.

Protect your images and photos with custom text or logo watermarks. Adjust transparency, tile repeating, angle, and positioning with full-resolution export.

Convert and combine JPG, PNG, and WebP images into a single PDF document with custom page sizes, margins, and reordering.

Create clean, professional, unwatermarked invoices and receipts with line items, tax calculations, and instant A4 PDF export.

Convert JSON data into CSV, Excel (.xlsx, .xls), and Markdown tables instantly with nested object flattening, delimiter controls, and client-side downloads.

Validate, format, prettify, minify, and debug JSON with exact line error detection.

Decode, inspect, and validate JSON Web Tokens (JWT) client-side. Parse header, payload claims, and expiration timestamps.

Convert between meters, feet, inches, kilometers, miles, yards, centimeters, and nautical miles with instant calculation.

Calculate monthly loan payments, total interest costs, and full amortization schedules with extra payment simulation.

Generate placeholder dummy text by paragraphs, sentences, words, or list items. Supports HTML tag formatting and instant clipboard copy.

Write GitHub-flavored Markdown with real-time split preview, syntax toolbar, tables, code blocks, and 1-click HTML code export and download.

Convert numbers, decimal figures, and currency amounts into written English words for checks, invoices, and legal documents.

Generate strong, cryptographically secure random passwords, memorable passphrases, and PINs. Includes real-time entropy calculation and bulk export.

Compress and optimize PDF file sizes directly in your browser.

Combine multiple PDFs into one file. Runs entirely in your browser.

Rearrange, delete, rotate, and duplicate PDF pages visually in your browser with real-time thumbnail previews and zero file uploads.

Rotate PDF pages permanently 90°, 180°, or 270° clockwise or counter-clockwise in your browser.

Sign PDF contracts and agreements directly in your browser. Draw, type, or upload your signature and stamp it onto any page with zero server uploads.

Split PDF files into individual pages or extract custom page ranges.

Convert PDF pages into high-resolution PNG or JPG images client-side with custom resolution scaling and individual or batch downloads.

Convert PDF documents to editable Microsoft Word (.doc) and text format in your browser.

Stamp custom text or image watermarks across PDF documents. Customize text, font size, opacity, rotation angle, and page ranges.

Calculate percentages, percentage change, discounts, and bill splits with instant formulas.

Generate custom high-resolution QR codes for websites, plain text, WiFi credentials, and contact cards. Customize colors and download lossless PNG or SVG.

Test, debug, and visualize JavaScript regular expressions with real-time match highlighting, capture group inspection, and string substitution.

Calculate sales tax, reverse gross-to-net tax breakdowns, and combined shopping discounts with instant itemized financial summaries.

Convert between kilometers per hour (km/h), miles per hour (mph), meters per second (m/s), knots, and feet per second.

Format, beautify, and indent messy SQL queries locally in your browser. Supports Standard SQL, MySQL, PostgreSQL, BigQuery, and SQLite with keyword capitalization and custom indentation.

Convert vector SVG graphics into crisp raster PNG or WebP images at custom scale multipliers (1x, 2x, 4x, 8x) or custom dimensions with transparency support.

Convert between Celsius (°C), Fahrenheit (°F), Kelvin (K), and Rankine (°R) with step-by-step conversion formulas.

Transform plain text into aesthetic Unicode fonts: Zalgo/Glitch, Mocking SpongeBob, Upside-Down, Vaporwave, Cursive, Gothic, and Small Caps.

Convert between units of length, weight, temperature, area, volume, speed, and digital data storage with instant calculation.

Encode, decode, parse, and rebuild URLs and query string parameters client-side with full UTF-8 support.

Generate bulk cryptographically secure UUID v4 identifiers directly in your browser.

Convert between liters, milliliters, cubic meters, gallons, quarts, pints, cups, and fluid ounces with instant calculation.

Convert between kilograms, pounds (lbs), grams, ounces, stones, metric tonnes, and US tons with instant precision.

Count words, characters, sentences, paragraphs, reading time, and speaking time in real time. Includes keyword density analysis and case conversion.

Inspect, preview, and extract files from ZIP archives directly in your browser. Browse folders, view text and images, and download unpacked files.