Tools that run in your browser
Most online text and developer tools upload what you type to a server. These tools do not. Every calculation, conversion and generator on this page runs as JavaScript inside your own browser, so your essays, passwords, JSON files and documents are not sent anywhere. That makes the tools fast, private and available even on a slow connection once the page has loaded.
There is nothing to install and no account to create. Open a tool, paste or type, and copy the result. Each page explains how the tool works, shows worked examples and answers the questions people ask most often, so you understand the output and not only the answer.
Writing and text tools
Writers and students use the word counter and character counter to hit exact limits, the words to pages converter to plan essays, and the reading time and speech time calculators to fit a talk or an article into the time available. The case converter, duplicate line remover, alphabetical sorter and text diff checker clean up and compare text in seconds, and the slug generator and fancy text generator help with web addresses and social profiles.
Generators
The lorem ipsum generator creates placeholder text for mockups and templates. The random number generator draws secure random numbers for games, raffles and sampling, and the password generator builds strong random passwords with a clear strength estimate, using your browser's cryptographically secure random source.
Developer tools
The JSON formatter validates and beautifies JSON and shows the exact line and column of an error. The Base64 and URL encoders convert text for APIs and links, the hash generator creates MD5 and SHA checksums for text and files, the Unix timestamp converter translates epoch time to readable dates, and the color converter switches between HEX, RGB and HSL and checks WCAG contrast.
Why browser-based tools are better for private text
- Your text is not uploaded, stored or logged by a server.
- Results appear instantly, with no waiting for a network round trip.
- There are no daily limits, watermarks or sign-up walls.
- Tools keep working on mobile browsers and on shared computers, because nothing is installed.
- You can close the tab at any time and nothing is left behind except what you copied.
Which tool should you use?
| Your task | Best tool |
|---|---|
| Count words or check a character limit | Word Counter, Character Counter |
| Fix capitalization | Case Converter |
| Plan the length of an essay or talk | Words to Pages Converter, Speech Time Calculator |
| Clean up a list | Remove Duplicate Lines, Alphabetical Order Sorter |
| Compare two versions of a text | Text Diff Checker |
| Create a web address from a title | URL Slug Generator |
| Fill a design with sample text | Lorem Ipsum Generator |
| Create a secure password | Password Generator |
| Debug API data | JSON Formatter, Base64, URL Encoder, Unix Timestamp |
| Verify a file or generate a checksum | Hash Generator |
Frequently Asked Questions
Are these tools free?
Yes. All tools are free to use with no sign-up, no limits and no watermarks.
Is my text uploaded to a server?
No. The tools run in your browser, so the text you type or paste stays on your device.
Do the tools work on a phone?
Yes. They are designed for phones, tablets and desktop browsers.
Can I use the results commercially?
Yes. The output of these tools, such as formatted text, hashes and generated passwords, is yours to use.
Do I need to install anything?
No. Open the page in any modern browser and start.
Which browsers are supported?
Current versions of Chrome, Edge, Firefox and Safari. A few features, such as the hash generator, need a secure (https) connection.