Developer Tool

Base64 Encode/Decode

Encode or decode Base64 strings for testing, debugging, integrations, and quick data checks.

Use this utility when you need to inspect an encoded value, generate a quick test string, or sanity-check a payload without dropping into a terminal. It is lightweight, fast, and useful in day-to-day developer workflows.

Runs in the browser No signup needed Instant output
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Tool Area

Everything runs in the browser.

How to use

  1. Paste the source text or Base64 string.
  2. Choose encode or decode mode.
  3. Copy the result.

Common use cases

  • Inspect encoded payloads.
  • Generate test strings quickly.
  • Handle simple debugging tasks without a terminal.

FAQ

Does it support binary files?

No. This version is designed for text content pasted into the browser, not file uploads.

What happens with invalid Base64 input?

The tool returns an error instead of a decoded result so you can catch invalid input immediately.

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