Utilities
Pick the job, not a generic “generator”. A password is a secret you will type again. A UUID is an identifier, not a password. A hash is a fingerprint you cannot reverse. Base64 and URL encoding are reversible text transforms, not encryption. JSON format only reprints a document that already parses.
Lorem ipsum is filler for a layout. It is not copy. A slug is a URL piece derived from a title, not a translation.
What you type stays in the browser. These pages do not store a password, upload a document, or keep a QR code on a server so it can be edited later. The guides under this category say which of those limits applies.
Featured in this category
Password Generator
Create a strong random password in your browser. No signup, and the password is never stored or sent to analytics.
QR Code Generator
Create static QR codes for URLs, Wi-Fi, text, email, SMS and contacts. Download PNG or SVG in your browser — no signup.
JSON Formatter
Pretty-print, minify or validate JSON in your browser. Parse errors show an approximate line and column.
UUID Generator
Generate one or many RFC 4122 UUID v4 values in your browser. Copy or download as TXT.
Guides
How to Create a QR Code
Encode the data you want a phone to read, download a file, scan it once yourself, then print or share that file. The pattern is the data — it does not call a server later unless you encoded a URL that does.
How to Create a Strong Password
Use a unique, randomly generated password for each site, store it in a password manager, and prefer length over a clever substitution on a short word.
How to Format JSON
Formatting JSON means parsing it, then reprinting the same value with consistent indentation. Invalid text cannot be formatted — fix the syntax first.
What Is Base64?
Base64 is a way to write binary data using 64 ASCII characters. It is encoding, not encryption. Anyone who sees the string can decode it.
What Is URL Encoding?
URL encoding (percent-encoding) replaces characters that are unsafe in a URL with % and two hex digits. A space becomes %20. It keeps a query value from being read as another parameter.
Generators
Password Generator
Create a strong random password in your browser. No signup, and the password is never stored or sent to analytics.
UUID Generator
Generate one or many RFC 4122 UUID v4 values in your browser. Copy or download as TXT.
Lorem Ipsum Generator
Generate placeholder paragraphs, sentences or words in your browser. Optionally start with the classic opening line.
Encoding
Base64 Encoder / Decoder
Encode and decode Base64 in your browser with proper UTF-8 support, including Unicode and emoji.
URL Encoder / Decoder
Percent-encode or decode URL components in your browser with encodeURIComponent and decodeURIComponent.
Hash Generator
Hash text with SHA-256, SHA-384 or SHA-512 in your browser. Output is lowercase hex. Hashing is not encryption.
Text transforms
JSON Formatter
Pretty-print, minify or validate JSON in your browser. Parse errors show an approximate line and column.
Text Case Converter
Convert text to lowercase, UPPERCASE, Title Case, Sentence case, camelCase, PascalCase, snake_case or kebab-case.
Slug Generator
Turn a title into a URL-friendly slug. Latin accents including Swedish å, ä and ö become ASCII letters.
Visual
All utilities tools
Search or scan the full list for this category.
11 tools
QR Code Generator
Create static QR codes for URLs, Wi-Fi, text, email, SMS and contacts. Download PNG or SVG in your browser — no signup.
Password Generator
Create a strong random password in your browser. No signup, and the password is never stored or sent to analytics.
UUID Generator
Generate one or many RFC 4122 UUID v4 values in your browser. Copy or download as TXT.
Base64 Encoder / Decoder
Encode and decode Base64 in your browser with proper UTF-8 support, including Unicode and emoji.
URL Encoder / Decoder
Percent-encode or decode URL components in your browser with encodeURIComponent and decodeURIComponent.
JSON Formatter
Pretty-print, minify or validate JSON in your browser. Parse errors show an approximate line and column.
Hash Generator
Hash text with SHA-256, SHA-384 or SHA-512 in your browser. Output is lowercase hex. Hashing is not encryption.
Lorem Ipsum Generator
Generate placeholder paragraphs, sentences or words in your browser. Optionally start with the classic opening line.
Text Case Converter
Convert text to lowercase, UPPERCASE, Title Case, Sentence case, camelCase, PascalCase, snake_case or kebab-case.
Slug Generator
Turn a title into a URL-friendly slug. Latin accents including Swedish å, ä and ö become ASCII letters.
Color Converter
Convert colors between HEX, RGB and HSL with a live preview. Accepts #RGB and #RRGGBB.