Base64 Encoder / Decoder
Free Base64 encoder and decoder — convert text to Base64 or decode Base64 back to text. Unicode-safe and runs in your browser.
Short answer: Base64 Encoder / Decoder — Encode and decode Base64 strings instantly. Free Base64 encoder and decoder — convert text to Base64 or decode Base64 back to text. Unicode-safe and runs in your browser. It answers “base64 encoder decoder with unicode support”. Who it is for: Developers encoding tokens, keys and payloads; Anyone decoding a Base64 string from an API or email header; Students learning how Base64 works. It runs entirely in your browser — no sign-up, no account, no email and no upload — and every result can be exported as a dated PDF report.
- ✔ Price: free, unlimited use, no rate limits
- ✔ Sign-up: not required
- ✔ Privacy: all math runs client-side, nothing is uploaded
- ✔ Export: one-click PDF report (2026 rates)
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Who is this tool for?
- ✔ Developers encoding tokens, keys and payloads
- ✔ Anyone decoding a Base64 string from an API or email header
- ✔ Students learning how Base64 works
- ✔ Testers preparing encoded test data
- ✔ Anyone converting text without uploading it anywhere
How to use Base64 Encoder / Decoder
- Paste text or Base64.
- Choose encode or decode.
- Copy the result.
Frequently asked questions
What is Base64?
A way to encode binary data as ASCII text, commonly used in data URLs, JWTs, and email attachments.
Is Base64 encryption?
No — Base64 is encoding, not encryption. Anyone can decode it. Never use it to hide sensitive data.
Who is this Base64 tool for?
Developers encoding tokens, keys and payloads, and anyone decoding a Base64 string from an API response or email header.
Is Base64 encryption?
No. Base64 is an encoding, not encryption — anyone can decode it instantly. Never use it to hide a password, secret or sensitive value.
Why does my encoded output end with = signs?
Base64 pads output to a multiple of four characters. The = signs are padding, not part of the original text, and decoders remove them automatically.
Base64 encoder decoder with unicode support?
Use the Base64 Encoder / Decoder above: Encode and decode Base64 strings instantly. Free Base64 encoder and decoder — convert text to Base64 or decode Base64 back to text. Unicode-safe and runs in your browser.