Base64 Encoder / Decoder
Encode Unicode text to Base64 or decode Base64, including URL-safe Base64.
Turn this result into a calculation record
Carry the tool context into the PROFENG calculation-check and record workspace without implying certification or engineering approval.
Formula source and acknowledgement
Source being confirmed. PROFENG has not yet approved a published source for this exact calculator implementation, so no candidate book, paper or standard title is displayed here.
Credit for any underlying published method belongs to its original author(s) or standards body. PROFENG presents its own implementation and wording and does not imply endorsement or affiliation.
Read the PROFENG methodology for formula sourcing and automated checks →
Why use this base64 encoder / decoder?
Base64 is a text representation of binary or text data commonly used in APIs, email and configuration files. This tool can encode ordinary text or decode a Base64 string.
Example
Encoding the text Toolbox produces VG9vbGJveA==.
Important note
Base64 is encoding, not encryption. Anyone can decode it, so do not use it to protect secrets.
How to use it
Start with the inputs shown above, review the assumptions or options, then generate the result. Where the tool creates a file, keep the original until you have opened and checked the downloaded output.
Frequently asked questions
Is Base64 Encoder / Decoder free?
Yes. The core tool is free to use without creating an account.
Do I need an account to use Base64 Encoder / Decoder?
No. You can use the core Toolbox workflow without signing up.
Does Base64 Encoder / Decoder work on mobile?
Yes. Toolbox is designed for modern mobile and desktop browsers, although complex file workflows can be easier on a larger screen.
QA, changelog and corrections
Last QA update: 30 September 2026.
This page is covered by publication and metadata QA only unless a tool-specific automated verification status is displayed above. No named-expert review is claimed.
Changelog
30 September 2026 – source/indexation status, metadata and correction pathway reviewed. Engineering tools display the automated verification label only when they are inside the passing Part 3 verification scope.