Base64-decode a List
Convert base64 back to a list. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Base64-decode a List
- 1. Paste the base64 string. Put the encoded base64 text into the input pane, whether it came from a config value, API response, or a previously encoded list.
- 2. Check the decoded output. The tool decodes the base64 back into its original text, restoring line breaks so the result reads as one item per line again. There are no options to set.
- 3. Copy the restored list. Copy the decoded list, back in its original readable form, into wherever you need the plain items rather than the encoded string.
When to use Base64-decode a List
Base64-decode a List reverses base64 encoding, taking an encoded string and restoring it to a readable list with the original line breaks intact. Reach for Base64-decode a List whenever you have base64 text that started life as a list and needs to be human-readable again.
- Reading a base64 environment variable. A CI pipeline stores a list as a base64-encoded environment variable and you need to inspect its actual contents while debugging. Decode it to see the original items.
- Inspecting an encoded API payload. An API response includes a base64 field that you suspect contains a list of values. Decode it to confirm what data is actually being sent.
- Recovering a list from a shared config value. You inherited a config file with a base64-encoded list and need to see and edit the actual values. Decode it, make your changes, and re-encode if needed.
- Verifying an encoded URL parameter. A URL has a base64 query parameter you built earlier and want to confirm it decodes back to the intended list. Paste it in to check the round trip.
Examples
Decode back to items
Input
YXBwbGUKYmFuYW5h
Output
apple banana
About the Base64-decode a List tool
Base64-decode a List runs as plain JavaScript in your browser tab, with no server behind it. Convert base64 back to a list. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's List Tools section, 114 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
There is nothing to configure. Provide the input and the result appears on its own. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Does Base64-decode a List cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
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 much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
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.