Generate Random Base64-encoded Data
Generate random Base64-encoded data. 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 Base64-encoded Data
- 1. Set the byte length. Enter Bytes per value to decide how many raw bytes get encoded into each Base64 string before any padding is added.
- 2. Set how many values. Enter How many values to decide how many independent Base64 strings the generator returns in one batch.
- 3. Choose a separator. Set Separator, typically a newline, so each encoded value lands on its own line ready to paste into a config file or test script.
- 4. Copy the values. Copy the generated Base64 strings into your project. Each one decodes back to random bytes rather than meaningful text.
When to use Generate Random Base64-encoded Data
Generate Random Base64-encoded Data produces Base64 strings built from random bytes rather than encoded text, useful whenever you need sample tokens or binary-looking data without encoding a real file. It suits testing and mock data generation.
- Generating sample API tokens for a mock server. A developer building a mock authentication endpoint wants realistic-looking Base64 tokens to return in test responses without them corresponding to any real session.
- Testing a Base64 decoding function. Someone writing code that decodes Base64 into raw bytes wants sample encoded values of varying lengths to confirm the decoder handles padding correctly.
- Populating placeholder binary fields in a database. A developer seeding a test database with a binary blob column wants quick Base64-encoded filler values rather than encoding a real file for every row.
- Simulating an encryption key for a demo. Someone building an educational demo about key exchange wants a random-looking Base64 string to represent a key, without it being an actual cryptographic key.
Examples
Random Base64 values
Output
q83vK1mZ4pQ9rX7t A1b2C3d4E5f6G7h8
About the Generate Random Base64-encoded Data tool
Generate Random Base64-encoded Data does its work locally, right in the browser. Generate random Base64-encoded data. 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 Bytes per value, How many values and Separator, 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
Does Generate Random Base64-encoded Data cost anything?
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?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
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?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
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.