About this tool
Base64 encoding turns text or binary data into a safe set of ASCII characters, widely used to embed images in CSS, transmit data in APIs, and store tokens. This tool encodes and decodes Base64 with complete UTF-8 support, so Arabic text, French accents and emoji are all handled correctly. Everything runs in your browser for full privacy.
How to use
- 1Choose Encode or Decode.
- 2Type or paste your input.
- 3Copy the converted output.
Benefits
- Full UTF-8 / Unicode support.
- Instant two-way conversion.
- Private — nothing is uploaded.
Base64 is encoding, not security
Practical example
Encoding “ToolBlur” produces a portable ASCII string that can travel through a text-only field. Decoding restores the original text; anyone with a decoder can do the same.
Interpreting the result
Base64 is useful when a system needs binary or Unicode data represented as plain text. It commonly appears in data URLs, email attachments and developer payloads.
Limits and common mistakes
The output is roughly one third larger and provides no confidentiality. Do not use Base64 instead of encryption, hashing or access control, and do not paste active credentials.
Detailed guides for this tool
Learn the underlying concepts, worked examples and common mistakes before relying on the result.
Frequently asked questions
Does it support emoji and Arabic?+
Yes, the tool uses UTF-8 so all characters encode and decode correctly.
Is Base64 encryption?+
No. Base64 is encoding, not encryption — it is reversible and not secure for secrets.