Generate Random Strings
Quickly generate random strings of any length. Runs entirely in your browser, so your data never leaves your device.
Output
The result appears here as you type.
How to use Generate Random Strings
- 1. Set the length and quantity. Enter Length (characters) to size each string and How many strings to set the batch, whether you need one token or a whole list.
- 2. Choose a character set. Select from Letters and digits, Letters only, Lowercase letters, Uppercase letters, Digits only, or Hexadecimal to match the format your token or ID field expects.
- 3. Copy the generated strings. Copy the results from the output pane and paste them into a test config, a mock API key field, or anywhere a random identifier is needed.
When to use Generate Random Strings
Generate Random Strings produces character sequences of any length and character set, useful for tokens, nonces, IDs, or any placeholder value that needs to look randomly generated. It runs entirely in your browser.
- Generating a placeholder API key. You are documenting an API and need a realistic-looking key format to show in example requests without exposing a real credential, so you generate a Hexadecimal string at the right length.
- Testing a unique ID field. You wrote a system that assigns short alphanumeric IDs to records and want generated Letters and digits strings at the same length to test collision handling and display formatting.
- Filling a password strength meter demo. You are demoing a password strength indicator and want strings of varying length and character set, from Digits only to mixed letters and digits, to show off each strength tier.
- Seeding test fixtures with random tokens. A test suite needs several distinct short tokens to simulate session IDs or CSRF tokens. Generating a batch with a chosen character set gives you consistent-looking fixtures quickly.
Examples
A 16-character token
Input
Output
k7Qx2pR9mZ4aT1nB
About the Generate Random Strings tool
Generate Random Strings does its work locally, right in the browser. Quickly generate random strings of any length. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the Random Tools collection on EditSafely, a set of 120 small, focused Random utilities that share the same instant, private workspace.
You can shape the output with 3 settings, including Length (characters), How many strings and Characters, and the result refreshes the moment you change one. A worked example further down the page shows exactly what the tool produces for a real input.
Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.
Frequently asked questions
Is Generate Random Strings free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Does the generator send anything to a server?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How do I get a different result?
Run the generator again. Each run is computed fresh on your device, and any options you change are applied to the next result immediately.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.