Base64 Encoder
Encode strings to Base64 with this free Base64 encoder that handles full UTF-8 - including emoji and non-Latin scripts - unlike naive btoa-only widgets. Paste text, click Encode (or rely on auto-run), then copy or download the result.
Useful for data-URI experiments, basic auth headers, and embedding small assets in source. Processing is local only. For the reverse path, open Base64 Decoder; both pages share the same UTF-8-safe implementation.
Input
Paste or type your content here…
Output
Your result will appear here
Frequently Asked Questions
Why do some Base64 tools break non-English text?
Native btoa only accepts Latin1. We wrap TextEncoder so multi-byte UTF-8 characters encode correctly.
Is encode the same as encryption?
No. Base64 is encoding, not encryption. Anyone can decode it. Never treat it as a secrecy control.
Can I decode on this page?
Use the companion Base64 Decoder page (same engine, opposite default) for decode workflows and SEO landing coverage.
Are line breaks in output added?
Output is a continuous Base64 string. Add wrapping yourself if a legacy system requires 76-character lines.