Base64 Encoder / Decoder
Encode Unicode text as Base64 or decode standard and URL-safe Base64. Free, with no signup or usage-count limits.
Free · No signup · No watermark · On-device processing
Use the tool
How to use Base64 Encoder / Decoder
- Paste plain text to encode or Base64 text to decode.
- Choose Encode or Decode; optionally select URL-safe output.
- Run the tool, then copy or download the result.
Understand the input and output
Base64 represents bytes with printable characters. This utility first encodes your text as UTF-8, so accented letters and emoji round-trip correctly. URL-safe output replaces + and / and omits optional padding.
Base64 is encoding, not encryption. Decoding expects UTF-8 text; arbitrary binary data may not be readable here.
Privacy and browser support
Your input is handled in this browser tab. Selected files and entered text are not sent to Varento Tools by this tool. Some specialized libraries load only when needed. A browser with JavaScript and sufficient device memory is required. Read our local-processing explanation.
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Frequently asked questions
Is this tool free without daily usage limits?
Yes. Varento Tools has no signup, accounts, usage-count caps, paywalls or watermarks. Device memory, format support and browser restrictions can still limit technically demanding files.
Does Base64 hide private information?
No. Anyone can decode Base64 without a key. Encoding changes representation, not confidentiality.
Is my input uploaded?
No. This tool processes your input in the current browser tab and does not send it to a processing server.
What are the practical limits?
Base64 is encoding, not encryption. Decoding expects UTF-8 text; arbitrary binary data may not be readable here.