Free tools that never ask you to sign up.

Combine as many PDF files as you like into one document.

Pull out a page range, or break a document into single pages.

Turn a sideways scan the right way up and keep it that way.

Take out the pages you do not want and keep the rest in order.

Move pages around, reverse a run, or type the order you want.

Pull the words out of a PDF and copy them anywhere.

Print a number on every page, in any corner, starting wherever you like.

Trim white space from every page, or from the ones you choose.

See what changed between two versions of a document.

Turn a filled in form into fixed page content so it cannot be edited or lost.

Turn a document into headings, paragraphs and lists you can paste into a wiki or a notes app.

Lay two, four, six or nine pages onto one sheet before you print.

See the whole table of contents a document carries, with the page each entry points to.

Turn every two page spread into two single pages, in reading order.

Every font the document calls for, whether it is embedded, and which pages use it.

Pretty print, validate and minify JSON in your browser.

A structural diff that reports added, removed and changed paths. Key order and indentation are ignored, and neither document leaves your browser.

Paste an API response and get named interfaces back. Keys missing from some records come out optional.

Write an expression, see every match and its full path, live.

Turn any text into a valid JSON string literal, and back again.

Order every key at every depth so two files can be compared cleanly.

Turn newline delimited records into one array, or split an array into lines.

Arrays, nulls and keys that are not legal element names each get an explicit, documented decision.

Get readable YAML with quoting that survives a round trip.

Multi document files, anchors and block strings all handled.

Tables, arrays of tables, dotted keys and real date values all convert correctly.

Paste a CSV export and get JSON back.

Nested objects become dotted columns, records with different shapes union their columns, and quoting follows RFC 4180 so Excel opens it cleanly.

Attributes, repeated elements, CDATA and entities are all handled, and invalid XML is reported with a line and a column.

Indent a minified document, minify an indented one, and get the exact line where the tags stop matching. Everything runs in the tab.

Indent and case a query across twenty dialects.

Quoted values, multi-line keys, export prefixes and inline comments are all parsed the way dotenv parses them.

Dotted keys become nested YAML and Spring's indexed keys become real sequences. Values that YAML would misread, like the country code NO, are quoted for you.

Drop an .xlsx file in and get clean CSV out, one sheet at a time.

Drop in an .xlsx and get an array of objects keyed by your header row, or raw arrays if there is no header. Converted in the tab.

Paste or drop a CSV and download a real .xlsx. Numbers and dates become proper cells, but anything that would lose meaning stays text.

Encode and decode base64 in your browser.

Percent encode a query value or decode a mangled link.

Generate one UUID or a hundred, from your browser's own cryptographic random source.

Hash text with SHA-256, SHA-1, SHA-384 or SHA-512 in your browser.

Read the header, the claims and the expiry of a JSON Web Token.

Escape text for HTML, or turn a page full of entities back into readable characters.

Compute HMAC-SHA256 and friends in your browser.

Paste a crontab line and read what it actually does, plus the next eight times it fires.

Test a pattern against real text, see every match and capture group, and try a replacement.

Turn a Unix timestamp into a readable date in UTC and your local time, or go the other way. Seconds and milliseconds are detected for you.

Convert a number between binary, octal, decimal, hex and any base up to 36. Arbitrary precision, so 64-bit values keep every digit.

Break a URL into its parameters, decoded and readable, with the repeated keys called out.

Turn awkward text into a safe literal for the language you are pasting it into, or unescape one you were given.

Read the browser, engine, operating system and device out of a User-Agent header.

Every registered status code, what it means and when to send it, plus the unofficial ones from nginx, Cloudflare and Laravel.

Look up the media type for an extension, or the extension for a media type, with the disagreements between servers called out.

Paste a curl command and get readable JavaScript, with the flags that have no fetch equivalent reported rather than dropped.

Paste a range and a list of versions and see which ones match, using npm's own range logic including the prerelease rule.

Turn text into ones and zeros through UTF-8, and back again.

All 128 codes in decimal, hex, octal and binary, with the control characters explained rather than left blank.

Tick the permissions you want and read the octal, the ls listing and the command to run. Nothing about your server is sent anywhere.

Type an address and a prefix and read the network, broadcast, host range, netmask and wildcard.

Strip comments and whitespace from a stylesheet in your browser.

Turn a minified or badly indented stylesheet back into something readable.

Strip editor metadata, collapse pointless groups and round coordinates in vector markup you already have.

Words, characters, sentences and a per page breakdown.

Words, characters, sentences, paragraphs and reading time, counted as you type.

Switch between sentence case, title case, camelCase, snake_case and five more.

Characters with and without spaces, visible characters, UTF-8 bytes and how much room is left against the usual limits. Counted as you type.

Unwrap hard wrapped text from an email, a PDF or a terminal, keeping the paragraphs. Or flatten everything into a single line.

Natural sort so item10 lands after item2, plus case sensitivity, reverse order and blank line removal. Runs in the tab.

Keep the first of each line, keep only the one-offs, or list just the repeats. Case and whitespace handling are yours to choose.

Line, word or character level differences between two versions, computed in your tab.

Plain text or regular expressions, with whole word and case options, and a live count of how many replacements were made.

Paragraphs, sentences, words or list items, as plain text, HTML or Markdown.

Flip a string end to end, reverse the word order, or flip the order of the lines. Emoji and accented letters survive intact.

Accents folded to plain letters, punctuation removed, words joined with a hyphen. Paste a whole list and get a slug per line.

Collapse double spaces, trim line ends, tidy blank lines, and strip the non-breaking and zero width characters that come with pasted text.

Number every line from any starting point, aligned in a column, with the separator you want.

A Fisher-Yates shuffle driven by the browser cryptographic random source, so every ordering is equally likely.

Repeat a word, a line or a block up to two hundred thousand times, joined by a new line, a space, a comma or nothing at all.

An exact count for the word or phrase you are looking for, plus a full frequency table of everything else.

Parsed with the browser HTML parser rather than a regular expression, so entities decode correctly and scripts never run.

GitHub flavored Markdown with tables, task lists and fenced code, converted to clean HTML as you type.

Headings, lists, links, emphasis and code blocks come across intact. Choose the heading style, the bullet character and the code fence.

Flesch Reading Ease, Flesch-Kincaid grade level, sentence length and reading time, computed in your browser as you type.

Get a padded, readable Markdown table for a README, a pull request or your docs. Pipes are escaped and line breaks inside cells are handled properly.

See what your document is carrying, then strip the author, the software trail and the XMP block.

Strong random passwords made by your browser, not by a server.

Random word passphrases with the entropy stated exactly, drawn by your browser and never transmitted to anyone.

An honest entropy estimate, computed in your browser.

Hash a file locally and compare it against the checksum the download page published.

AES-256-GCM with a key stretched from your password.

Paste raw headers and see the delivery path, the SPF, DKIM and DMARC results and the mismatches that phishing relies on.

Cryptographically random PINs of three to twelve digits, with the obvious ones left out.

Paste a color in any notation and read it back in six.

Get the real WCAG 2.1 ratio for a text and background pair, with AA and AAA verdicts and a live sample of the actual text.

Linear, radial and conic gradients with as many stops as you want. The preview is the CSS, so there is nothing to export.

Stack as many shadow layers as you want, see them on a real element, and copy the rule.

Eight handles, one per corner per axis, previewed on a real element. Copy the shorthand and paste it into your stylesheet.

Build complementary, triadic, analogous and split complementary palettes from one color, each swatch carrying its contrast against black and white.

Drag the two control points, watch the curve and three live previews, and copy the timing function.

Every clickable link and every address written in the text, listed with the page it is on.

Every page measured in millimeters, inches or points, with its orientation, rotation and standard sheet name.

Drop a file in and read it as a sortable table with a sticky header.

Uniform random integers from your browser's cryptographic generator, with no modulo bias and no server involved.

Pick a date, a time and a city, and read the same moment everywhere else.

Total days, whole weeks, calendar months and working days between any two dates.

Years, months and days, plus the countdown to the next birthday.

Five calculations, including the one people get wrong: taking a tax back out of a total that already includes it.

Numbers to numerals and numerals back to numbers, with strict validation that rejects IIII rather than guessing at it.

Length, mass, temperature, volume, area, speed and data, with the whole table shown at once.

Give it a ratio and one side to get the other, or two dimensions to get the simplest ratio. Every result shows the arithmetic behind it.