Convert Integers to Base64

Convert Integers to Base64 takes a list of integers and turns them into Base64-encoded strings. You can encode each number individually or combine them all into a single Base64 string. It’s quick, useful for testing, encoding data, or prepping numeric values for APIs or transmission.

Everything runs right in your browser. You can paste numbers, upload a file, and flip between modes all with live preview and a flashing output when things change. No servers involved. Just instant, safe Base64 encoding.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .csv, .tsv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css
Total lines: 0
Options
Maximize output

How to Use:

  • Paste your numbers into the Input Integers box (one per line or separated by spaces).
  • Or use Choose File to upload .txt, .csv, or other plain-text files.
  • Choose your Encoding Mode:
    • Encode each line – turns each number into Base64 separately (one result per line).
    • Encode entire input – joins all numbers and encodes the combined string.
  • Enable Maximize output to expand the output box.
  • The output flashes and updates live as you type or change settings.
  • Click Copy Output to copy everything.
  • Click Export to File to save the results.
  • Click Clear All to reset everything.

What Convert Integers to Base64 can do:

  • Turn each integer into a Base64-encoded string.
  • Optionally combine all integers and encode as a single Base64 result.
  • Accept large pasted lists or file uploads with instant processing.
  • Show flashing live updates with a line count indicator.
  • Copy or export results easily.
  • Runs entirely in your browser safe and fast.

Example:

Input:

123
456
7890

Mode: Encode each line Output:

MTIz
NDU2
Nzg5MA==

Mode: Encode entire input Output (from combined 123,456,7890):

MTIzLDQ1Niw3ODkw

Common Use Cases:

Use this when you need to Base64-encode numeric data for URLs, APIs, config files, database storage, or just to hide or compress values. It’s especially helpful for developers, testers, or anyone working with encoding and data transformation.

Useful Tools & Suggestions:

After using Convert Integers to Base64, try Convert Base64 to Integers to decode and verify your output. And if you’re exploring different encoding styles, Convert Integers to HTML Entities gives you another way to represent numbers as text.

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