Free online tools that run in your browser
A small, fast set of text, developer and security utilities. No sign-up, no upload, no ads chasing you around the page - the work happens on your own device.
Word Counter
Count words, characters, sentences and paragraphs as you type, with an estimated reading time. Runs entirely in your browser.
Character Counter
Count characters with and without spaces, letters, digits and punctuation, plus a letter frequency table for any text.
Case Converter
Convert text between eight letter cases instantly: uppercase, lowercase, title case, sentence case, camelCase, PascalCase, snake_case and kebab-case.
JSON Formatter & Validator
Format messy JSON with clean indentation, minify it back, or find the exact position of a syntax error. Runs locally in your browser.
Base64 Encoder & Decoder
Encode plain text to Base64 or decode Base64 back to text, including URL-safe variants. Runs entirely in your browser.
URL Encoder & Decoder
Percent-encode or decode URLs and query-string values, with the option to encode an entire URL or only a parameter value.
Strong Password Generator
Generate strong random passwords using the browser's cryptographic random source. Choose length and character sets; nothing leaves your device.
UUID / GUID Generator
Generate RFC 4122 version 4 UUIDs in bulk, ready to copy as plain text, JSON, SQL or CSV.
SHA-1 and SHA-256 Hash Generator
Compute SHA-256 or SHA-1 hashes of any text using the browser's Web Crypto API, with a quick check for known weak inputs.
Lorem Ipsum Placeholder Generator
Generate lorem ipsum placeholder text by paragraph, sentence, word or list count, with an option to start with the classic opening.
Why these tools do not upload your data
Every utility on this site is written in plain JavaScript and runs in the page. That matters more than it sounds: the text people paste into a word counter is often an unpublished draft, and the JSON in a formatter is usually a live API response with tokens in it. Sending that to a server you do not control is a habit worth breaking. Nothing here is transmitted, and there is no account to create.
Built for the boring, repeated jobs
Counting characters before a submission form truncates your copy. Finding the syntax error in a JSON payload. Generating a UUID that will not leak how many rows your database has. These are five-second tasks that should take five seconds, which is the whole design goal: one page, one job, keyboard-friendly, and fast enough to use on a phone.
Questions
Are these tools free to use?
Yes. All of them are free and unlimited, with no account and no quota.
Do you store anything I type?
No. The tools execute in your browser and the input never reaches a server. Anonymous, cookie-free visit counts are the only measurement on the site.
Can I use the output commercially?
Yes. Text, identifiers, hashes and passwords produced here are yours to use with no attribution.
Which tool should I start with?
The word counter is the most used, followed by the JSON formatter and the password generator.