Free online tools
17 free tools for people who write, study, calculate or organize lists. Type or paste, see the result instantly and copy it or save it to a note. No sign-up needed, and everything runs in your browser: what you type is not sent to any server.
Categories
Text
Tools to tidy, count and compare text: character limits, capitalization, repeated lines, stray spaces, text copied from PDFs and lists to paste into other programs.
- Word and character counter onlineWords, characters, reading time and social media limits.
- Convert text to uppercase and lowercaseUPPERCASE, lowercase, Title Case and capitalized words.
- Remove duplicate lines from textDeletes repeated lines from a list and keeps the first.
- Sort lines alphabetically onlineAlphabetical, by length or reversed, with accents and numbers.
- Remove extra spaces from textDouble spaces, spaces at line ends and extra blank lines.
- Compare two texts and see the differencesShows what was added and removed between two versions.
- Clean the formatting of copied textPlain text: no invisible characters, PDF breaks, curly quotes or bullets.
- Remove accents from text onlineStrips accents, tildes and cedillas: "café" becomes "cafe".
- Generate a URL slug from textTurns a title into a clean address, with hyphens.
- Remove line breaks from textJoins the lines of a text, with the separator you choose.
- List to comma-separated text (and back)Lines to commas, with quotes, and the way back.
- Number lines and add text to the start and endNumbers lines and puts text at the start or end of each.
Numbers and calculators
Everyday calculators: write amounts in words, work out the average of your grades and do percentage, discount and increase math, with the calculation explained step by step.
QR Code and Markdown
Tools to create and share: generate QR Codes for links, text and Wi-Fi networks, and write in Markdown with an instant preview, the same format used in AnotPad notes.
Which tool to use
- Writing for social media, for an essay, a thesis or for Google: the word and character counter, which shows the size of the text and each place’s limits.
- Text typed with Caps Lock on, or a title that needs formatting: uppercase and lowercase.
- A list with repeated or unordered items: remove duplicate lines, sort lines and number lines.
- A list that has to become a single line for SQL, a spreadsheet or an email: list to comma-separated text.
- Copied text with double spaces, too many line breaks or PDF formatting: remove extra spaces, remove line breaks and clean formatting.
- A page address or file name from a title: text to slug and remove accents.
- Two versions of the same text and you wonder what changed: compare text.
- The amount of a check, receipt or contract written in words: number to words.
- School or college grades: grade average calculator. Discounts, increases and changes: percentage calculator.
- A link, text or Wi-Fi password to share with a phone camera: QR Code generator. Text formatted with simple symbols: Markdown viewer.
How they work
Each tool does its calculation in your own browser, as soon as you type or paste. Nothing is sent, stored or shared. When you close the page, what you typed is gone; to keep the result, use "Save to a note" and it becomes an AnotPad note, with an address of its own that you can open on your phone and computer.
To combine tools, copy the result of one and paste it into the next: for example, remove extra spaces, then duplicate lines and finally sort the list.