129 free online tools, zero uploads

Compress JPG, PNG and WebP images in your browser with an adjustable quality slider. See before/after file size and download the smaller image free.

Resize images to exact pixel dimensions or by percentage with aspect-ratio lock. Free online image resizer that works privately in your browser.

Rotate images 90 degrees left or right, or enter any custom angle. Free online image rotation tool that processes photos privately in your browser.

Flip or mirror any image horizontally or vertically in one click. Free online image flipper with instant preview — photos never leave your browser.

Add a custom text watermark to any photo — set the text, font size, color, opacity and position on a 9-point grid. Free, no uploads, no logo stamps.

Convert JPG or JPEG images to PNG format instantly in your browser. Batch convert multiple files at once and download each PNG — free, no uploads.

Convert JPG, PNG and AVIF images to WebP with an adjustable quality slider. Batch convert in your browser — smaller files, faster pages, no uploads.

Convert WebP images to universally compatible JPG files with a quality slider. Batch convert in your browser — free, instant, and nothing is uploaded.

Convert WebP images to lossless PNG format while preserving transparency. Batch convert multiple files in your browser — free and fully private.

Convert JPG images to next-generation AVIF format with adjustable quality. Cut file sizes up to 50% versus JPEG — free, in-browser, no uploads.

Convert AVIF images to universally compatible JPG format with a quality slider. Decode and convert locally in your browser — free and private.

Convert iPhone HEIC photos to universally compatible JPG in your browser. Private, free conversion with clear guidance if your browser lacks HEIC support.

Convert GIF images to PNG format in your browser — extracts the first frame of animated GIFs as a lossless still. Free, instant and private.

Convert PNG or JPG images to a multi-size ICO favicon (16, 32 and 48 px in one file). Generate a valid favicon.ico in your browser — free, no uploads.

Convert SVG vector files to PNG at any resolution you choose. Render crisp raster images from SVG in your browser — free, instant and private.

Convert PNG to SVG online by tracing raster pixels into scalable vector shapes. Free browser-based vectorizer for logos, icons and pixel art.

View image metadata and EXIF data online: camera make, model, date taken, ISO, exposure, GPS location, dimensions and file size — all private.

Check the DPI of an image online. Reads real PNG and JPEG density metadata and shows print size at 300 DPI and 150 DPI in inches and centimeters.

Change the DPI of a PNG or JPEG online without re-encoding pixels or losing quality. Set 72, 96, 150, 300, 600 or custom DPI and download instantly.

Check image dimensions, file size, aspect ratio and megapixels online for one or many images at once. Fast, free and fully private in your browser.

Convert an image to a Base64 data URL online. Get copy-ready HTML img tags and CSS background-image snippets. Free, instant and fully private.

Convert a Base64 string back to an image online. Paste a data URL or raw Base64, preview instantly and download as PNG, JPG or the original format.

Blur an image online with an adjustable Gaussian blur slider. Preview the original and blurred photo side by side and download free — no upload needed.

Sharpen a blurry image online with an adjustable unsharp mask. Enhance edge detail in photos, compare before and after, and download free — no upload.

Adjust image brightness and contrast online with live sliders. Fix dark or washed-out photos, preview changes instantly and download free — no upload.

Convert an image to grayscale online. Turn photos black and white with an adjustable intensity slider, preview live and download free — no upload.

Apply a sepia filter to photos online for a warm vintage look. Adjust intensity with a slider, preview instantly and download free — no upload needed.

Invert the colors of an image online to create a photo negative effect. Adjustable intensity, instant preview and free download — no upload required.

Pick colors from any image online. Click a photo to get exact HEX, RGB and HSL values with copy buttons and a history of recent picks — free and private.

Combine multiple PDF files into one document in your browser. Reorder files before merging, no upload, no watermark — free online PDF merger.

Split a PDF into separate single-page files or extract a page range in your browser. Free, private PDF splitter — no upload, no watermark.

Rotate all PDF pages or a specific range by 90, 180 or 270 degrees and save the result. Free in-browser PDF rotation with no upload.

Remove unwanted pages from a PDF by typing page numbers or ranges like 1,3,5-8. Free browser-based tool — your file is never uploaded.

Pull selected pages out of a PDF into a new document. Enter pages or ranges like 2,4,6-9 and download instantly — private, in-browser, free.

Reorder the pages of a PDF with simple up/down controls and download the reorganised file. Free, private and entirely in your browser.

Stamp page numbers onto every PDF page. Choose position, starting number and font size, then download — free, no upload, no watermark.

Convert JPG, PNG and WebP images into a single PDF. Choose A4, Letter or fit-to-image pages and margins — free, private, in-browser.

Render every PDF page as a high-resolution PNG or JPG image at 1x–3x scale, preview thumbnails and download each page — free and private.

Inspect a PDF's hidden properties: title, author, subject, keywords, creator, producer, dates, page size and version — privately in your browser.

Count words, characters, sentences, paragraphs and estimated reading time instantly. Free online word counter for essays, blogs and social media.

Convert text between uppercase, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case and more. Free online case converter.

Count characters with and without spaces in real time and check limits for Twitter/X, Instagram captions, meta descriptions and SMS messages.

Delete duplicate lines from any list or text instantly. Case-insensitive matching, whitespace trimming and keep-first or keep-last options.

Strip blank lines from text or code in one click. Optionally remove whitespace-only lines or collapse multiple empty lines into a single one.

Collapse double spaces into one, trim spaces at line ends and convert tabs to spaces. Clean messy whitespace from pasted text instantly.

Sort lines of text alphabetically A to Z or Z to A, by length, numerically, or shuffle randomly. Options to ignore case and remove duplicates.

Reverse text instantly: flip character order to create mirror text, reverse word order in sentences, or invert the order of lines in a list.

Compare two blocks of text side by side and highlight added and removed lines with a color-coded diff. Free online text difference checker.

Repeat any text, word or emoji thousands of times with your chosen separator — new line, space, comma or custom. Copy or download the result.

Generate classic lorem ipsum placeholder text by paragraphs, sentences or words. Copy dummy text for mockups, designs and layouts in one click.

Turn any title into a clean, SEO-friendly URL slug: lowercase, accents removed, words joined with hyphens or underscores. Live preview and copy.

Generate random strings with custom length and character sets, or random words from a built-in list. Great for test data, IDs and placeholders.

Format, beautify and minify JSON online with 2-space, 4-space or tab indentation. Sort keys alphabetically and catch syntax errors instantly — free and private.

Validate JSON online and find syntax errors with exact line and column numbers. See root type, key counts and nesting depth — free, instant and 100% private.

Format and beautify XML online with proper indentation, or minify it to a single line. Parse errors are reported clearly — free, fast and fully private.

Validate XML online and check it is well-formed. Get the browser parser's exact error message, plus element and attribute counts for valid documents. Free and private.

Beautify HTML online with clean, consistent indentation. Handles void elements and preserves pre, script and style content exactly. Free, instant and private.

Minify HTML online: strip comments, collapse whitespace between tags and shrink page size. See bytes saved instantly. Free, private, runs in your browser.

Format and beautify CSS online: one declaration per line, tidy indentation, spaces after colons and support for nested at-rules. Free and 100% private.

Minify CSS online: remove comments and whitespace, drop trailing semicolons and shorten hex colors. See bytes and percent saved. Free, instant, private.

Beautify JavaScript online with token-aware indentation. Respects strings, template literals, regex and comments. A quick, private, in-browser JS formatter.

Minify JavaScript online safely: strip comments and collapse whitespace without renaming or rewriting code. See bytes saved. Free and 100% in-browser.

Format SQL online: uppercase keywords, new lines before SELECT, FROM, WHERE and JOIN, indented AND/OR conditions. One-line minify included. Free and private.

Encode text or files to Base64 instantly in your browser. UTF-8 safe, with a URL-safe Base64 option, copy and download. Free online Base64 encoder.

Decode Base64 to readable text or download it as a file. Handles URL-safe base64url and missing padding automatically. Free, private, in-browser decoder.

Percent-encode text for URLs instantly. Switch between encodeURIComponent and encodeURI modes, see live output and copy the result. Free URL encoder.

Decode percent-encoded URLs back to readable text instantly. Optional '+ as space' handling for query strings and clear errors for malformed input.

Decode JWT header and payload instantly, with human-readable iat/exp/nbf timestamps and an expiry badge. Client-side only — tokens never leave your browser.

Generate MD5 hashes of text or files instantly in your browser. 32-character hex checksum with uppercase option and one-click copy. Free and private.

Compute SHA-1 hashes of text or files in your browser using Web Crypto. 40-character hex digest with uppercase option and instant copy. Free and private.

Generate SHA-256 hashes of text or files with the browser's Web Crypto API. 64-character hex digest, uppercase option, instant copy. Free and private.

Compute SHA-512 hashes of text or files right in your browser. 128-character hex digest with uppercase option and one-click copy. Free, fast, private.

Generate 1–100 cryptographically random UUID v4 identifiers at once. Uppercase and hyphen-less options, per-item copy and copy-all. Free UUID generator.

Generate cryptographically secure random bytes at any size. Output as hex, Base64 or a downloadable binary file — perfect for keys, salts, tokens and test data.

Generate SEO-ready HTML meta tags with live character counters for title and description. Free meta tag generator with robots, viewport and charset options.

Generate Open Graph meta tags for Facebook, LinkedIn and WhatsApp link previews. Free OG tag generator with a live social share preview card.

Generate Twitter Card meta tags for rich link previews on X. Choose summary or large image cards, set handles, and see a live preview mock-up.

Generate a correct rel=canonical link tag from any URL, with optional trailing-slash and lowercase normalization. Fix duplicate content the easy way.

Generate hreflang link tags for multilingual and multi-regional sites. Add URL and language rows, include x-default, and catch duplicate locales.

Build a robots.txt file with user-agent rules, allow/disallow paths, crawl-delay and sitemap URL. One-click presets to allow all, block all, or block AI bots.

Paste a list of URLs and generate a valid XML sitemap with lastmod, changefreq and priority. Validates URLs and downloads sitemap.xml instantly.

Generate Schema.org JSON-LD structured data for WebSite, WebPage, LocalBusiness, Person, Event and Recipe types with a simple guided form.

Generate Article, NewsArticle or BlogPosting JSON-LD with headline, author, publisher, dates and image. Copy-paste structured data for your posts.

Build BreadcrumbList JSON-LD structured data from simple name and URL rows. Positions are numbered automatically — copy the script tag and go.

Create FAQPage JSON-LD structured data from question and answer pairs. Add unlimited Q&A rows and copy a valid script block for your FAQ page.

Generate Organization JSON-LD with name, logo, URL, social profiles (sameAs) and contact point. Strengthen your brand's knowledge panel signals.

Create Product JSON-LD with brand, SKU, price, currency, availability and optional aggregate rating. Get rich snippets with price and stars.

Calculate what X% of a number is, what percent one number is of another, and percentage increase or decrease between two values — instantly and free.

Work out the final sale price and money saved from any discount percentage, including stacked double discounts like an extra 10% off an already reduced price.

Add GST to a net amount or extract GST from an inclusive price. Preset 5%, 12%, 18% and 28% slabs plus custom rates, with net, tax and gross shown instantly.

Add VAT to a net price or extract VAT from a gross amount. Preset 5%, 10%, 20% and 23% rates plus custom, showing net, VAT and gross values instantly.

Calculate your monthly EMI for home, car or personal loans from loan amount, interest rate and tenure — with total interest and a full amortization schedule.

Calculate your Body Mass Index from height and weight in metric (cm/kg) or imperial (ft-in/lbs) units and see your WHO category with a color-coded badge.

Find your exact age in years, months and days from your date of birth, plus totals in weeks, days and hours and a countdown to your next birthday.

Do arithmetic and bitwise math on binary, decimal, hex and octal numbers — add, subtract, multiply, divide, AND, OR, XOR and shifts, with results in all bases.

Free online scientific calculator with sin, cos, tan in degrees or radians, log, ln, powers, roots, π, e, parentheses, memory keys and keyboard support.

Convert between units of length, weight, temperature, area, volume, speed, time and data storage instantly, with a swap button and common conversion tables.

Calculate the area of a rectangle, triangle, circle, trapezoid or ellipse from simple measurements, with the formula shown and results in m², ft² and more.

Pick any color and get its HEX, RGB and HSL values instantly. Free online color picker with shades, tints and one-click copy for designers and developers.

Generate complementary, analogous, triadic, tetradic and monochromatic color palettes from any base color. Click any swatch to copy its HEX code fast.

Create beautiful linear, radial and conic gradients with up to 4 color stops, position sliders and an angle control. Live preview and copyable CSS code.

Build production-ready CSS gradients with a fallback color, preset gallery and live preview. Copy clean background-image code straight into your site.

Convert HEX color codes to RGB and RGBA instantly. Supports 3, 6 and 8-digit HEX with a live color swatch, batch list conversion and one-click copy.

Convert RGB or RGBA values to HEX color codes instantly. Enter channels manually or paste an rgb() string, preview the swatch and copy the HEX result.

Convert HEX color codes to HSL and HSLA instantly. See hue, saturation and lightness values with a live swatch, batch list conversion and copy button.

Convert HSL values to HEX and RGB with live hue, saturation and lightness sliders. Watch the color swatch update in real time and copy the color codes.

Check the contrast ratio between text and background colors against WCAG AA and AAA standards. Live preview, pass/fail badges and a one-click color swap.

Generate random color palettes instantly. Lock the swatches you like, re-roll the rest, and copy the palette as a HEX list or as ready CSS variables.

Design rounded corners visually with per-corner sliders and a live preview box. Copy standard or fancy 8-value border-radius CSS for organic blob shapes.

Create CSS box shadows visually with offset, blur, spread, color and opacity controls. Stack multiple shadow layers, preview live and copy the CSS code.

Generate clip-path CSS visually: triangles, arrows, hexagons, circles, ellipses and custom polygons with point sliders. Live preview and copy-ready code.

Convert GPS coordinates between decimal degrees, degrees-minutes-seconds and decimal minutes instantly. Paste any format like 40°26'46"N and copy the result.

Calculate the great-circle distance and initial bearing between two latitude/longitude points with the Haversine formula — km, miles and nautical miles.

Paste messy GPS coordinates in any format to validate and normalize them, see decimal and DMS output, and open the exact point on Google Maps or OpenStreetMap.

Convert GeoJSON files to KML for Google Earth free in your browser. Supports points, lines, polygons, multi-geometries and feature properties. No upload.

Convert GPX files from your GPS device to KML for Google Earth. Waypoints, tracks and routes preserved with names and elevation — free and private.

Convert KML files to GeoJSON FeatureCollections in your browser. Placemarks, folders, polygons with holes and MultiGeometry supported. Free, no upload.

Generate a KML circle around any latitude/longitude with a custom radius in meters, kilometers or miles. Download and open it in Google Earth or Maps.

Build a KML polygon from a list of latitude/longitude vertices with custom fill and line colors, then download it for Google Earth or Google Maps.

Calculate the exact difference between two dates in years, months and days, plus total days, weeks, hours and minutes. Free, fast and private.

Free online countdown timer. Count down to any date and time or start a quick timer in minutes, with start, pause, reset and a live progress bar.

Convert any date and time between world time zones. See UTC offsets, daylight saving handled automatically, and compare multiple zones at once.

Convert timestamps to human-readable dates and dates back to timestamps. Auto-detects seconds vs milliseconds, shows local, UTC and ISO 8601 formats.

Unix epoch time converter with live current epoch, seconds, milliseconds and microseconds support, and a reference table of common epoch values.

Generate strong random passwords with cryptographically secure randomness. Choose length and character sets, see entropy strength, copy instantly.

Create QR codes for URLs, Wi-Fi, email, phone and SMS. Pick size, colors and error correction, then download a crisp PNG — free and private.

Generate Code 128 barcodes online with checksum, adjustable bar width and height, optional text label, and PNG download. Free and fully private.

Generate random numbers in any range with cryptographically secure randomness. Multiple numbers, no-repeat mode, sorting, plus dice and coin presets.

Generate random realistic names from a diverse international list, or unique usernames combining words and numbers. Pick gender, count and format.