MyAITools
Encoder

Base64 Encode

Base64 Encode is a free online encoder that helps you encode any text to Base64 (and URL-safe Base64); runs locally in your browser, free and online. Base64 Encode uses 1 input field, returns 3 output values, and runs in your browser on the device.

Key facts

Inputs
1 field: Text
Outputs
3 values: Base64, Base64URL (URL-safe), and Output length (chars)
Runtime
your browser on the device
Mode
Encoder
Privacy
Files and text stay in the browser session.
Cost
$0, no account required

How to use Base64 Encode

  1. 1

    Paste or fill in the input

    Enter your text or values into the input fields on the page.

  2. 2

    Run the utility

    Click Compute to run the utility in your browser and review the result.

  3. 3

    Copy the output

    Copy the output value you need from the result panel.

Base64 Encode details

First, enter Text in Base64 Encode. Next, review Base64, Base64URL (URL-safe), and Output length (chars). Additionally, Base64 Encode uses 1 input field and 3 output blocks so the result is easy to scan and copy.

Paste any UTF-8 text and instantly get the standard Base64 encoding plus the URL-safe variant (using - and _, no padding). Encoding happens entirely in your browser; your text is never uploaded. Useful for embedding strings in data URIs, JSON, JWTs, and HTTP headers.

Common searches

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Related tools

Tools that work with the same formats — most users open one of these next.

Text & EncodingDecoder

Base64 Decode

Decode Base64 or URL-safe Base64 strings back to UTF-8 text — runs locally in your browser.

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Text & EncodingEncoder

URL Encode

Percent-encode text for safe use in URLs — supports both encodeURIComponent and encodeURI.

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Text & EncodingHasher

Hash Text

Compute MD5, SHA-1, SHA-256, SHA-384 or SHA-512 of any text — runs locally in your browser.

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Text & EncodingEncoder

Base32 Encode

Encode UTF-8 text to RFC 4648 Base32 — alphabet A-Z and 2-7, with = padding. Useful for TOTP secrets and DNS-safe identifiers.

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Text & EncodingGenerator

CRC32 Checksum Calculator

Calculate the CRC32 checksum of any text — hex and decimal output. Free, instant, runs in your browser.

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Text & EncodingEncoder

Text to Hex

Encode UTF-8 text as a hex string — lowercase, uppercase, space-separated or 0x-prefixed.

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Frequently asked

What is Base64 Encode?

Base64 Encode is a free online encoder that helps you encode any text to Base64 (and URL-safe Base64); runs locally in your browser, free and online. Base64 Encode uses 1 input field, returns 3 output values, and runs in your browser on the device.

What inputs and outputs does Base64 Encode use?

Base64 Encode uses 1 input field: Text. Base64 Encode returns 3 output values: Base64, Base64URL (URL-safe), and Output length (chars).

Do my files and data stay private?

Yes. Base64 Encode runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.

How do I use Base64 Encode?

Open Base64 Encode, paste or fill in the input fields, and the result updates instantly. Base64 Encode runs in your browser with no upload and no waiting.

Which browsers does Base64 Encode support?

Any modern browser works in Chrome, Firefox, Safari, and Edge on desktop and mobile. Base64 Encode uses standard web APIs and does not require any plugin, extension, or sign-up.