Axiomatic ToolsFree Fast Essential

Base64 encoder & decoder

Round-trip text or files through Base64.

  • Developer
  • Free to use
  • Server processed
Use via API

Your input

0 chars

Set your options

Options2 settings

Run Base64 Encode / Decode

Processed on our servers. Sent over TLS, and any file it makes is deleted an hour later — 24 hours if you are signed in.

Type or paste your input above to run this tool.

Report a bug

Three steps

How to use Base64 Encode / Decode

  1. Step 01

    Pick your input

    Paste your text into the box above.

  2. Step 02

    Configure & run

    Adjust the options (direction, url safe) and click Run. The work runs on our own infrastructure — no third-party processing APIs in the path.

  3. Step 03

    Download the result

    The result appears below the form. Copy it with one click.

This tool runs on our servers. There is nothing to upload, and any file it makes is deleted an hour after it is made — 24 hours if you are signed in. We do not use third-party processing APIs.

About Base64 Encode / Decode

Encode or decode Base64 (URL-safe variant supported). It sits in the developer shelf alongside 76 other developer tools, needs no account, and keeps the same behaviour whether you open it here or call it through the REST API.

It works from what you type in rather than a file and gives back plain text you can copy. The work happens on our servers. There is nothing to upload, and any file it makes is deleted an hour later — 24 hours if you are signed in. The same operation is available programmatically at POST /v1/dev/base64.

Base64 Encode / Decode questions

Where does Base64 Encode / Decode do its work?

On our own servers. There is no file to upload: what you enter is sent over TLS and processed on our infrastructure — no third-party processing APIs are in the path — and any file it makes is deleted within an hour.

Do I need an account to use Base64 Encode / Decode?

No. Base64 Encode / Decode works without signing in, and that is not a trial — it is how the free tier works. An account only matters for things that need one to exist at all: larger server jobs against your quota, API keys, saved workflows and billing.

Can I run Base64 Encode / Decode from my own code?

Yes. Every tool on the site is reachable from the REST API with the same slug — `base64` — and the same options as this page, so anything you can do here you can automate.

Base64 Encoder / Decoder · Axiomatic Tools