GigaCode logo GigaCode

Developer tools, fast and local, because your privacy matters.

QR Code Generator CPF/CNPJ Generator JSON Formatter & Validator Fluff text generator JWT Decoder SQL Formatter Text diff CSS Units Converter Base64 Encoder/Decoder SVG to PNG or JPEG converter JPG/PNG ↔ WebP converter Image resizer Grayscale image filter

Random string generator

Generate alphanumeric or hex strings with crypto.getRandomValues.

{{ randomString.message }}

{{ t("randomStrMaxLen") }}

Overview

For passwords with symbol rules, see the dedicated password tool. Length is capped for browser safety.

Technical deep dive

Common questions summarized

  • What is this tool for?: It runs fully in your browser: useful to validate, format, or convert data in everyday development.
  • Are my inputs sent to a server?: Processing happens locally with JavaScript. We do not store what you paste into the text areas.
  • Can I use this for real production data?: Use at your own risk. For secrets (passwords, tokens), prefer controlled environments and your company policies. And always review the generated contents. Never trust blindly things you see on the internet.

Sample payload to try

  • See also the larger "Code Snippets" sample; paste this excerpt to try locally: Use — IDs de teste: 16 caracteres [a-zA-Z0-9]

Tool guide

  • What a random string is An unpredictable sequence drawn from a chosen alphabet.

  • What the tool does Generates a configurable length using crypto.getRandomValues, with alphanumeric, hex, or a custom character set.

  • Why use it Test IDs and sample values. For password policies with symbol rules, also use the site’s password generator.

This chapter in the full guide All tools guide

Code Snippets

Code example
IDs de teste: 16 caracteres [a-zA-Z0-9]

Use 

IDs de teste: 16 caracteres [a-zA-Z0-9]

FAQ

What is this tool for?

It runs fully in your browser: useful to validate, format, or convert data in everyday development.

Are my inputs sent to a server?

Processing happens locally with JavaScript. We do not store what you paste into the text areas.

Can I use this for real production data?

Use at your own risk. For secrets (passwords, tokens), prefer controlled environments and your company policies. And always review the generated contents. Never trust blindly things you see on the internet.

GigaCode global FAQ