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Base64 Encode & Decode

Encode or decode Base64 for text and local files, on your computer.

About $1 per 1,000 unique texts.

Base64 Encode & Decode — Encode or decode Base64 for text and local files, on your computer.

Turn text or a local file into Base64, or turn Base64 back into text or bytes. You can also use the URL-safe alphabet and data-URI output. It runs offline.

What it does

  • Encodes and decodes Base64 for text and local files.
  • Supports the URL-safe alphabet and data-URI output.
  • Includes a free MCP server for AI apps. No API key is needed.
  • The free tool does not fetch file links from the internet. The Apify version does.

Before and after

Plain text

hello world

Base64

aGVsbG8gd29ybGQ=

From base64-lite/README.md.

Get it

Free lite · GitHub · Free

CLI and MCP server. Install for now with: pip install git+https://github.com/tidybytetools/base64-lite. We will switch this to a PyPI install when the package is on PyPI.

Pay per use · Apify · $0.001 per unique item

Failed items are free.

FAQ

What does this tool do?

Encode or decode Base64 for text and local files, on your computer. Turn text or a local file into Base64, or turn Base64 back into text or bytes. You can also use the URL-safe alphabet and data-URI output. It runs offline.

What does it cost?

Free lite on GitHub costs Free. CLI and MCP server. Install for now with: pip install git+https://github.com/tidybytetools/base64-lite. We will switch this to a PyPI install when the package is on PyPI. Pay per use on Apify costs $0.001 per unique item. Failed items are free.

Will you see my files?

The download tools run on your computer, so those files stay with you. The Apify tools run in your own Apify account. This website does not take uploads.

Does the free tool work with AI apps?

Yes. The free lite version includes a small MCP server. You can use it from Cursor, Claude Desktop, and other apps that support MCP. No API key is needed.