Password Generator
Generate secure passwords from 8 to 64 characters.
Generators
Generate secure passwords, QR codes and cryptographic hashes online.
Tools in Generators
QR Code Generator
Generate QR codes from any text or URL.
Hash Generator
Compute SHA-256 and MD5 locally in your browser.
UUID Generator
Generate version 4 universally unique identifiers.
Base64 Encoder and Decoder
Encode and decode text in Base64.
Random Number Generator
Generate random numbers within a range, with the option of no repeats.
Barcode Generator
Generate Code 39 barcodes from any text, ready to download.
Lorem Ipsum Generator
Generate classic lorem ipsum filler text for mockups, templates and web designs.
JWT Generator
Generate signed JSON Web Tokens (HS256, HS384, HS512) for development and testing.
JSON Formatter and Minifier
Format, minify, validate and sort keys of any JSON instantly.
Regular Expression Tester (Regex)
Test, debug and understand your regex with match highlighting, groups and token-by-token explanation.
Publicidad / Advertisement
Articles about Generators
What is Base64 and How to Encode and Decode Text
Base64 explained: what it is, what it is used for in APIs, email and URLs, how to encode and decode with our tool and why it is not an encryption system.
2 min readLorem Ipsum: What It Is, Origin, and How to Use It
Discover what lorem ipsum is, where it comes from, and how to use a filler text generator for your web designs, mockups, and templates effectively.
4 min readHow to Generate Secure and True Random Numbers
Learn how to generate secure random numbers with the Web Crypto API. Discover the difference between pseudo and cryptographic randomness and when each matters.
3 min readWhat Is a Barcode and How to Generate Your Own
Discover what a barcode is, how the Code 39 format works, and generate your own barcodes online for free in a compatible, widely supported format.
4 min readJSON Formatter: Beautify, Minify, Validate and Sort
Format, minify, validate and sort JSON keys online. Detects syntax errors. Private: everything in your browser.
2 min readOnline JWT (JSON Web Token) Generator
Generate and decode JWTs signed with HS256/384/512. Customizable JSON header and payload. Local and secure.
2 min readOnline Regular Expression Tester (Regex)
Test and debug regex with flags, groups, highlighting and token-by-token explanation. Presets: email, URL, IPv4, DNI, IBAN. Free.
3 min readQR Code Generator: Create Free QR, Customize and Download
Generate free QR codes for URL, text, WiFi, vCard, email, SMS. Customize colors, logo, size and margin. Download PNG, SVG. No registration, no limits.
3 min readHash & Checksum Generator: MD5, SHA-1, SHA-256, SHA-512, CRC32
Calculate cryptographic hashes (MD5, SHA-1, SHA-256, SHA-384, SHA-512, RIPEMD-160, BLAKE2b) and checksums (CRC32, CRC32C, Adler-32) from text or files. Compare integrity, verify downloads, sign data. 100 % client-side (Web Crypto API / WASM), no file uploads.
3 min readSecure Password Generator: Create Strong Passphrases and Passwords
Generate cryptographically secure random passwords (real entropy) and memorable passphrases (Diceware/EFF). Customize length, charset, exclude ambiguous chars. All client-side, zero logs.
3 min readHow to Create Strong Passwords and Remember Them
Learn to create strong passwords, use password managers, enable 2FA and avoid the most common security mistakes.
2 min readWhat Is a QR Code and How It Works
Learn what a QR code is, its versions, error correction, use cases, and generate your own for free online.
2 min read