Base64 Encoder Tool

• Free online Base64 encoder that turns text, JSON, HTML and more into Base64 strings
• Choose from UTF-8 (recommended), UTF-16, or ISO-8859-1, and optionally generate a Data URL with a MIME type
• Shows original size, encoded size, and size change after encoding, with one-click copy — everything runs locally in your browser

1. Open the tool page — no download or installation needed
2. Paste or type your content and pick a character encoding (UTF-8 by default)
3. For web embedding, turn on "Data URL" and choose a data type, then click the "Encode" button to see the Base64 result
4. Click "Copy" to grab the result; click "Reset" to start over, or "Examples" to load demo content

• This tool is completely free and requires no sign-up
• All encoding happens locally in your browser — your data never leaves your device

Free online Base64 encoding tool, supports Base64 encoding of various format contents including text, JSON, HTML, provides multiple encoding formats such as UTF-8, UTF-16, ISO-8859-1, supports Data URL format generation, one-click copy of encoding results.

Open the tool page — no download or installation needed Paste or type your content and pick a character encoding (UTF-8 by default) For web embedding, turn on "Data URL" and choose a data type, then click the "Encode" button to see the Base64 result Click "Copy" to grab the result; click "Reset" to start over, or "Examples" to load demo content

This tool is completely free and requires no sign-up All encoding happens locally in your browser — your data never leaves your device

Yes, Base64 Encoder Tool is completely free. No download or installation required — it runs right in your browser.