All tools
146 free tools in 10 categories. Pick a category or search for the job you need to do.
Merge, split, compress, rotate, watermark and convert PDF files without uploading them.
Merge PDF
Combine several PDF files into one document, in the order you choose.
Split PDF
Split a PDF into several files by page ranges, every N pages, or one file per page.
Compress PDF
Reduce the size of a PDF. Light mode keeps text selectable; strong mode turns pages into compressed images, which suits scanned documents.
PDF to JPG
Convert PDF pages into JPG images.
PDF to PNG
Convert PDF pages into sharp PNG images.
JPG to PDF
Turn JPG, PNG and WebP images into one PDF, one image per page.
Rotate PDF
Rotate all or selected pages of a PDF by 90, 180 or 270 degrees.
Organize PDF Pages
Reorder, duplicate or delete pages by typing the page order you want.
Extract PDF Pages
Pull selected pages out of a PDF into a new, smaller file.
Add Page Numbers to PDF
Stamp page numbers on every page of a PDF, with your choice of position, format and starting number.
Add Watermark to PDF
Place a text watermark such as CONFIDENTIAL or DRAFT across the pages of a PDF.
Edit PDF Metadata
View or change the title, author, subject, keywords and creator stored inside a PDF.
Compare PDF Files
Compare the text of two PDFs and see what was added or removed, word by word.
Text to PDF
Turn plain text into a neatly paginated PDF with your choice of font, size and margins.
Compress, resize, crop, convert and inspect images right in your browser.
Image Compressor
Make JPG, PNG and WebP images smaller. Choose the quality, optionally resize, and see how much each file shrank.
Image Resizer
Change the dimensions of one or many images by pixels or percentage while keeping the proportions.
Image Cropper
Crop an image by dragging a box over it, with fixed aspect ratios for social posts, profile pictures and thumbnails.
Image Converter
Convert images between JPG, PNG, WebP and AVIF. Convert many at once.
JPG to PNG
Convert JPG photos to lossless PNG files.
PNG to JPG
Convert PNG images to smaller JPG files, with a background colour for transparent areas.
WebP Converter
Convert images to WebP for smaller web pages, or turn WebP files back into JPG or PNG.
AVIF Converter
Open AVIF images and convert them to JPG, PNG or WebP. Creating AVIF files works in browsers that can encode AVIF.
Image to Base64
Encode an image as a Base64 string or data URL, with ready-made HTML and CSS snippets.
Base64 to Image
Turn a Base64 string or data URL back into an image you can preview and download.
Image Rotator
Rotate images by 90, 180 or 270 degrees, or any custom angle.
Image Flipper
Mirror images horizontally, vertically, or both.
Image Color Picker
Click anywhere on a picture to get the exact colour in HEX, RGB and HSL, and see its dominant colours.
Image Metadata Viewer
Read the size, format and EXIF data of a photo: camera, lens, date taken, exposure settings and GPS location if present.
Trim, convert, compress and extract audio from media files on your own device.
Video Compressor
Shrink a video to an MP4 that is easier to email or upload, with a choice of compression level and maximum height.
Video Converter
Convert video between MP4, WebM and MKV.
Video to MP3
Pull the soundtrack out of a video and save it as an MP3.
Audio Converter
Convert audio between MP3, WAV, M4A, OGG and FLAC.
Audio Trimmer
Cut a section out of an audio file by start and end time.
Video Trimmer
Cut a clip from a video by start and end time. Fast mode copies the video without re-encoding.
Audio Merger
Join several audio files into one, in the order you choose.
Extract Audio from Video
Save the audio track of a video as MP3, WAV, M4A or OGG.
Video Resizer
Change the resolution of a video to a standard height or a custom width, keeping the aspect ratio.
GIF Maker
Turn a short section of a video into an animated GIF.
Audio Metadata Viewer
See the duration, codec, bitrate, sample rate and tags (title, artist, album) of an audio file.
Video Metadata Viewer
See the resolution, duration, codecs, frame rate and bitrate of a video file.
Summarise, rewrite, translate and brainstorm with an AI provider configured by the site owner.
AI Text Summarizer
Condense an article, report or email into a short summary or a list of key points.
AI Writing Assistant
Get help drafting or improving text: write from an instruction, continue a draft, or polish what you have.
AI Paraphraser
Reword a passage in a different style while keeping its meaning.
AI Translator
Translate text between more than 30 languages, keeping the tone and formatting.
Grammar Checker
Find and fix spelling, grammar and punctuation mistakes, with a list of what changed.
AI Email Writer
Draft a clear email from a few notes: who it is for, what you need and the tone.
AI Product Description Generator
Write a product description for your online store from the product name and its main features.
AI Blog Outline Generator
Create a structured outline for a blog post, with headings and key points for each section.
Text to Speech
Listen to text read aloud in a voice and speed you choose.
Speech to Text
Dictate with your microphone and get the words as text you can copy.
AI Chat Assistant
Ask questions and get help with writing, ideas and explanations in a simple chat.
AI Keyword Suggestions
Get keyword ideas for a topic, grouped by search intent, to guide your content.
AI Content Ideas
Brainstorm blog, video and social post ideas for your niche.
AI Image Generator
Create an image from a written description, if the site owner has set up an image provider.
AI Image Description
Get a description or alt text for a picture, written by an AI model that can see images.
Check titles, preview snippets and generate meta tags, sitemaps and campaign links.
Meta Title Checker
Check the length of a page title in characters and estimated pixels, so it is less likely to be cut off in search results.
Meta Description Checker
Measure a meta description and see whether it is likely to be shown in full in search results.
Meta Tag Generator
Generate the title, description, robots, canonical, Open Graph and Twitter Card tags for a page, ready to paste into your HTML head.
Robots.txt Generator
Build a robots.txt file that tells search engines which parts of your site to crawl, with optional blocks for AI training crawlers.
XML Sitemap Generator
Turn a list of page URLs into a valid sitemap.xml file.
UTM Builder
Add UTM campaign parameters to a link so analytics can show where visits come from.
Keyword Density Checker
See which words and phrases appear most often in your text and what share of the text they make up.
SERP Snippet Preview
Preview how a page could appear in Google search results on desktop and mobile, with truncation shown.
Open Graph Preview
Preview how a link will look when shared on Facebook, LinkedIn, WhatsApp and similar apps, from your Open Graph tags.
Heading Structure Checker
Show the H1 to H6 outline of a page and flag a missing H1, several H1s, skipped levels and empty headings.
Redirect Checker
Follow a link through every redirect and see each status code (301, 302, 307, 308) until the final page.
Website Status Checker
Check whether a website is responding, with its HTTP status, response time, server and content type.
URL Encoder
Percent-encode text so it can be used safely inside a URL or query string.
URL Decoder
Turn percent-encoded text such as %20 and %2F back into readable characters.
Word Counter
Count words, characters, sentences and paragraphs, and see how long your text takes to read aloud.
Format and minify code, decode tokens, test regular expressions and generate hashes.
JSON Formatter
Pretty-print JSON with the indentation you choose, and see exactly where a syntax error is.
JSON Validator
Check whether text is valid JSON and get its structure: type, size, depth and number of values.
JSON Minifier
Remove whitespace from JSON to make it as small as possible without changing its meaning.
XML Formatter
Indent and tidy XML so nested elements are easy to read. Reports malformed XML.
HTML Formatter
Re-indent HTML, including inline CSS and JavaScript, using the Prettier formatter.
CSS Formatter
Turn compressed or messy CSS into neatly indented rules.
JavaScript Formatter
Format JavaScript with consistent indentation, quotes and semicolons.
HTML Minifier
Shrink HTML by removing comments and extra whitespace, and minifying inline CSS and JavaScript.
CSS Minifier
Compress CSS by removing whitespace and comments and merging safe duplicates.
JavaScript Minifier
Minify JavaScript with Terser: shorter names, no whitespace, and dead code removed.
Base64 Encoder
Encode text as Base64, with an option for URL-safe output.
Base64 Decoder
Decode a Base64 string back to readable text. Accepts standard and URL-safe Base64.
URL Encoder
Percent-encode text so it can be used safely inside a URL or query string.
URL Decoder
Turn percent-encoded text such as %20 and %2F back into readable characters.
UUID Generator
Generate random version 4 UUIDs or time-ordered version 7 UUIDs, one or hundreds at a time.
JWT Decoder
Read the header and payload of a JSON Web Token and see when it was issued and when it expires.
Hash Generator
Calculate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or a file. Compare a file against a published checksum.
Regex Tester
Test a JavaScript regular expression against sample text, see every match highlighted, and inspect capture groups.
Markdown Editor and Preview
Write Markdown and see the rendered result instantly. Copy the generated HTML when you are done.
Color Code Converter
Convert a colour between HEX, RGB, HSL, HSV and CMYK, and check how readable text is on it.
Loans, interest, percentages, dates, units and currency conversion.
Percentage Calculator
Work out a percentage of a number, what percent one number is of another, or the percentage change between two values.
Age Calculator
Find an exact age in years, months and days, the total days lived, and the date and weekday of the next birthday.
Date Difference Calculator
Count the years, months, days and working days between two dates.
Time Calculator
Add or subtract two durations written as 1:30:15, 2h 15m or 90m, and see the total in several forms.
Loan Calculator
Estimate the monthly payment, total interest and total cost of a fixed-rate loan, with a repayment schedule.
EMI Calculator
Calculate the equated monthly instalment (EMI) using the reducing-balance or flat-rate method.
Compound Interest Calculator
See how savings or investments grow with compounding and optional monthly contributions.
Simple Interest Calculator
Calculate interest that is charged only on the original amount, plus the total to repay.
Profit Margin Calculator
Find profit, margin and markup from cost and revenue, or work out the selling price needed for a target margin or markup.
Discount Calculator
Work out the sale price after one or two successive discounts and optional tax, and how much you save.
VAT Calculator
Add VAT to a net price or take it out of a gross price, and see the VAT amount.
Sales Tax Calculator
Calculate sales tax and the total price using a state or national rate plus an optional local rate.
Salary Calculator
Convert pay between hourly, daily, weekly, monthly and yearly figures, with an estimate of take-home pay.
BMI Calculator
Calculate body mass index from height and weight, see the WHO adult category and the weight range for a healthy BMI at your height.
Unit Converter
Convert between units of length, weight, volume, area, speed, time, pressure and energy.
Temperature Converter
Convert temperatures between Celsius, Fahrenheit and Kelvin.
Length Converter
Convert between millimetres, centimetres, metres, kilometres, inches, feet, yards and miles.
Weight Converter
Convert between milligrams, grams, kilograms, tonnes, ounces, pounds, stone and tola.
Currency Converter
Convert between about 40 currencies using exchange rates from a provider the site owner has switched on. The time of the rates is shown with every result.
Data Storage Converter
Convert between bits, bytes, kilobytes, megabytes, gigabytes and terabytes, in both decimal (1,000) and binary (1,024) units.
Count words, change case, sort lines, compare text and clean up copy.
Markdown Editor and Preview
Write Markdown and see the rendered result instantly. Copy the generated HTML when you are done.
Word Counter
Count words, characters, sentences and paragraphs, and see how long your text takes to read aloud.
Character Counter
Count characters with and without spaces, plus letters, digits, lines and the size in bytes. Useful for social posts and meta tags.
Sentence Counter
Count the sentences in a passage and see the average sentence length in words.
Paragraph Counter
Count paragraphs (blocks separated by blank lines) and lines in your text.
Case Converter
Change text to upper case, lower case, title case, sentence case, camelCase, snake_case, kebab-case and more.
Uppercase Converter
Turn any text into capital letters.
Lowercase Converter
Turn any text into small letters. Handy for tidying emails, tags and file names.
Title Case Converter
Capitalise headlines properly. Short words such as "and", "of" and "the" stay lower case unless they start or end the title.
Remove Duplicate Lines
Delete repeated lines from a list while keeping the first copy of each in its original order.
Remove Extra Spaces
Clean up copied text by collapsing repeated spaces, trimming lines and removing surplus blank lines.
Text Reverser
Reverse the characters, the order of words, the order of lines, or the letters inside each word.
Text Compare
Compare two pieces of text and see what was added or removed, line by line or word by word.
Text Sorter
Sort a list alphabetically, by number, by length, or in random order.
Find and Replace
Replace every occurrence of a word or pattern in a block of text. Supports whole-word matching and regular expressions.
Lorem Ipsum Generator
Generate placeholder paragraphs, sentences or words for layouts and mock-ups.
QR codes, barcodes, passwords, colour palettes, CSS snippets and invoices.
UUID Generator
Generate random version 4 UUIDs or time-ordered version 7 UUIDs, one or hundreds at a time.
Color Code Converter
Convert a colour between HEX, RGB, HSL, HSV and CMYK, and check how readable text is on it.
Lorem Ipsum Generator
Generate placeholder paragraphs, sentences or words for layouts and mock-ups.
QR Code Generator
Create QR codes for links, text, Wi-Fi logins, email, phone numbers and SMS. Download as PNG or SVG.
Barcode Generator
Make Code 128, Code 39, EAN-13, EAN-8, UPC-A and ITF-14 barcodes and download them as PNG or SVG.
Password Generator
Generate strong random passwords using your browser's secure random number generator. Nothing is sent anywhere.
Username Generator
Get username ideas built from a word you like. Choose a style and separator.
Random Number Generator
Pick random whole numbers or decimals between two values, with an option for no repeats.
Random Text Generator
Generate random strings of letters, digits or hex characters, or random word sequences, for test data and tokens.
Color Palette Generator
Build a colour palette from one base colour using colour-wheel harmonies, and copy it as HEX or CSS variables.
Gradient Generator
Design a CSS linear, radial or conic gradient with live preview and copy the ready-to-use CSS.
CSS Box Shadow Generator
Tune a box-shadow visually and copy the CSS.
CSS Border Radius Generator
Set each corner radius separately and copy the border-radius CSS.
Invoice Generator
Create a clean PDF invoice with line items, tax and discount. Everything stays in your browser.
Business Name Generator
Get business name ideas by combining your keywords with prefixes and suffixes that suit the style you want.
Hashtag Generator
Turn a topic or caption into a list of relevant hashtags in readable CamelCase.
DNS, SSL and header checks, link extraction, short links and more.
Website Status Checker
Check whether a website is responding, with its HTTP status, response time, server and content type.
Markdown Editor and Preview
Write Markdown and see the rendered result instantly. Copy the generated HTML when you are done.
Data Storage Converter
Convert between bits, bytes, kilobytes, megabytes, gigabytes and terabytes, in both decimal (1,000) and binary (1,024) units.
URL Shortener
Turn a long web address into a short link on this site that redirects to the original.
DNS Lookup
Look up the DNS records of a domain: A, AAAA, MX, NS, TXT, CNAME, SOA and CAA.
IP Information
See your public IP address, or look up any IP: version, whether it is public or private, and its reverse DNS name.
Domain Information Lookup
Find a domain's registrar, registration and expiry dates, name servers and status using public RDAP data.
HTTP Header Checker
View a page's HTTP response headers and see which common security headers are present.
SSL Certificate Checker
Check a site's SSL/TLS certificate: issuer, validity dates, days until expiry, covered names and whether the chain is trusted.
Website Response Time Checker
Measure how quickly a website answers: time to first byte and total download time, over three requests.
Robots.txt Viewer
Fetch and read a website's robots.txt, with its sitemaps and rules summarised.
Sitemap Viewer
Open a sitemap.xml and list the URLs inside it, or the child sitemaps if it is a sitemap index.
Link Extractor
List every link on a web page and separate internal links from external ones.
Password Strength Checker
Estimate how strong a password is, how long it could take to guess, and what to improve. The password never leaves your browser.