Tools

Convert a time across time zones.

Find times that work across time zones.

Convert Unix timestamps (seconds or milliseconds) to and from human-readable dates.

Find the duration between two dates, add or subtract intervals, and calculate an exact age.

Count the business days between two dates, or add and subtract working days, with optional custom holidays.

Focus with the Pomodoro technique, run a custom countdown, or time anything with a stopwatch — with desktop alerts and a live tab title.

Count words, characters, sentences, and reading time.

Format, minify, and validate JSON.

Encode or decode Base64 and URL text.

Convert text between UPPER, lower, Title, camelCase, snake_case, and more.

Compare two texts and highlight what changed.

Test regular expressions with live match highlighting and capture groups.

Write Markdown and see the rendered HTML live, side by side.

Convert between Simplified and Traditional Chinese in real time, with Taiwan and Hong Kong variants.

Sort, deduplicate, trim, and clean lines of text, with live statistics.

Pick colors with HEX/RGB/HSL conversions, build CSS gradients, and generate palettes.

Convert length, weight, temperature, volume, area, speed, and data units with live two-way conversion.

Convert between Celsius and Fahrenheit in real time, with both fields updating as you type.

Convert integers between binary, octal, decimal, and hexadecimal in real time, with all four fields updating as you type.

Turn any text or URL into a customizable QR code and download it as PNG or SVG.

Create strong, random passwords with custom length and character options, right in your browser.

Generate random v4, time-ordered v7, or time-based v1 UUIDs — one or thousands at a time.

Generate placeholder Lorem Ipsum text by paragraph, sentence, or word count, right in your browser.

Generate realistic test data — names, emails, addresses, phone numbers, UUIDs and more — and export it as JSON or CSV.

Generate random numbers, roll dice, draw or shuffle names, and spin a visual wheel — all powered by secure browser randomness.

Build a .gitignore by picking languages and tools.

Crop a photo to passport specifications.

Shrink JPG, PNG, and WebP images by re-encoding and resizing.

Convert HEIC, PNG, JPG, and WebP images between formats.

Resize images by pixels or percentage and crop with a draggable selection.

Inspect a photo's EXIF metadata — camera, date, GPS — and download a copy with it removed.

Turn any image into a complete favicon set — PNGs, apple-touch-icon, manifest, and HTML snippet — in a ZIP.

Combine images into one PDF, or export every PDF page as a PNG or JPG.

Frame screenshots with a gradient or solid background, padding, rounded corners, and a drop shadow, then export a PNG.

Convert an image to a Base64 string, Data URI, or CSS background snippet — and preview a Data URI back as an image.

Overlay a text or image watermark on a photo with adjustable position, opacity, rotation, and tiling, then export a PNG.

Clean up SVG markup (strip comments, whitespace, and redundant attributes) and render any SVG to a PNG, all in your browser.

Read and decode QR codes from an image or your camera, right in your browser.

Redact private parts of an image — draw boxes over faces, names, or numbers and pixelate or blur them.

Combine multiple images into an animated GIF with frame timing and looping, or stitch them into one long image.

Cut out the subject and get a transparent PNG, all in your browser.

Combine multiple PDF files into one, in any order.

Extract or split pages from a PDF into one file or separate PDFs.

Reorder, rotate, and delete PDF pages, then rebuild the file.

Rotate, delete, and extract PDF pages, then download a new file.

Shrink a PDF by re-encoding and downsampling its pages, with a before/after size comparison.

Stamp a text watermark and sequential page numbers onto every page of a PDF, right in your browser.

Render every page of a PDF as a PNG or JPG image at the resolution you choose, then download them individually or as a ZIP.

Pull the selectable text out of a PDF, page by page, then copy it or download a .txt file — all in your browser.

Decode a JSON Web Token's header and payload, with readable expiry and issued-at times.

Encode or decode HTML entities and escape or unescape JS, JSON, and backslash string sequences.

Convert data between JSON, CSV, and YAML in any direction, right in your browser. Paste in one format, pick a target, and copy or download the result.

Beautify, minify, and validate XML.

Translate a cron expression into plain English and preview the next times it will run, all in your local time zone.

Minify or beautify HTML, CSS, and JavaScript in your browser — pick the language, flip between compress and format, and copy the result.

Beautify and pretty-print SQL queries with dialect-aware formatting and configurable indentation.

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text or a file, and verify checksums — all locally in your browser.

Generate SEO meta tags plus Open Graph and Twitter Card tags from a simple form, ready to copy.

Build a robots.txt from User-agent, Allow, Disallow, Crawl-delay, and Sitemap fields, ready to copy.

Preview your title and meta description as a Google search result, with live character and pixel-width limits.

Turn a pasted list of URLs into a valid sitemap.xml, with optional lastmod, changefreq, and priority.

Generate JSON-LD structured data for Article, Product, FAQ, Breadcrumb, Organization, and LocalBusiness, ready to copy.

Paste body text to see word counts, word frequency, and 1/2/3-word keyword density with reading time.

Turn a language-region → URL mapping into rel="alternate" hreflang link tags, with x-default and duplicate checks.

Turn any title or text into a clean, URL-safe slug — lowercase, accent-folded, and hyphenated, ready to copy.

Paste a page's HTML to audit its title, meta description, headings, image alt text, canonical, Open Graph, Twitter Card, and more.

Estimate how strong a password is, with entropy, crack-time, and tips — all offline.

Encrypt and decrypt text with a password using AES-256-GCM, entirely in your browser — your data never leaves your device.

Compute a file's SHA-256, SHA-1, and MD5 checksums locally and verify them against an expected value.

Work out the tip and split a bill evenly between any number of people, with optional rounding to tidy whole amounts.

Work out percentages three ways: what is Y% of X, what percent X is of Y, and the percentage increase or decrease between two numbers.

Solve for a missing width or height from any aspect ratio, simplify a width:height pair to its lowest terms, and pick from common presets like 16:9 and 4:3.

Work out loan monthly payments and total interest, plus compound-interest future value — all offline.

See how many years your savings can fund early retirement, with an 11×11 sensitivity table across capital and spending scenarios.