API Key Generator
Generate random API keys and secret tokens for your own projects. When you build a service, you often need a long, unpredictable string to authenticate clients or sign requests, and rolling that by hand is both tedious and risky if the randomness is weak. This generator uses the browser secure random source to produce high-entropy keys, and lets you add a recognizable prefix (like sk_ or pk_) and choose the length so the output matches your convention. Generate a single key or a batch, and copy any of them with one click. Everything is computed locally and never transmitted, so a secret you create here is only ever seen on your own machine, which is exactly how a secret should be born.
How to use API Key Generator
- Set a custom prefix if you want one.
- Choose the key length.
- Click generate.
- Copy the key and store it securely.
Frequently asked questions
How long and random are the keys?
You set the length and the key is built from the browser secure random source, producing a high-entropy value suitable for a secret token.
Can I add a prefix?
Yes. You can set a custom prefix so the key follows a naming convention like a service tag at the front.
Is the key stored anywhere?
No. The key is generated locally in your browser and is not sent to any server, so you should copy and store it yourself.
What is API Key Generator?
Generate random API keys and secret tokens for your own projects. When you build a service, you often need a long, unpredictable string to authenticate clients or sign requests, and rolling that by hand is both tedious and risky if the randomness is weak.
Is API Key Generator free to use?
Yes. API Key Generator is completely free, with no sign-up and no usage limits.
Does API Key Generator work in a web browser?
Yes. API Key Generator runs in any modern web browser. There is nothing to download or install.
Is my data private with API Key Generator?
Yes. API Key Generator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
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