Base64 Decode
Base64 Decode is a free online decoder that helps you decode Base64 or URL-safe Base64 strings back to UTF-8 text; runs locally in your browser. Base64 Decode uses 1 input field, returns 2 output values, and runs in your browser on the device.
Key facts
- Inputs
- 1 field: Base64 string
- Outputs
- 2 values: Decoded text and Decoded byte length
- Runtime
- your browser on the device
- Mode
- Decoder
- Privacy
- Files and text stay in the browser session.
- Cost
- $0, no account required
How to use Base64 Decode
- 1
Paste or fill in the input
Enter your text or values into the input fields on the page.
- 2
Run the utility
Click Compute to run the utility in your browser and review the result.
- 3
Copy the output
Copy the output value you need from the result panel.
Base64 Decode details
First, enter Base64 string in Base64 Decode. Next, review Decoded text and Decoded byte length. Additionally, Base64 Decode uses 1 input field and 2 output blocks so the result is easy to scan and copy.
Paste any Base64 or Base64URL string (with or without padding, using either +/ or -_) and get the original UTF-8 text. Whitespace is ignored. Decoding runs entirely in your browser; your data never leaves the page.
Common searches
- base64 decode
- base64 decoder
- base64 to text
- convert base64 to text
- decode base64
- base64 url decode
Related tools
Tools that work with the same formats — most users open one of these next.
Base64 Encode
Encode any text to Base64 (and URL-safe Base64) — runs locally in your browser, free and online.
Hex to Text
Decode a hex string back to UTF-8 text — accepts 0x prefixes, spaces, and any case.
Binary to Text
Decode 8-bit binary (groups of 0/1) back to UTF-8 text — space- or comma-separated.
Base32 Decode
Decode RFC 4648 Base32 (A-Z, 2-7) back to UTF-8 text — case-insensitive, padding optional.
Quoted-Printable Decode
Decode Quoted-Printable (RFC 2045) text back to UTF-8 — handles =XX escapes and soft line breaks (=\r\n).
QR Code Reader
Scan a QR code from any image and decode it to text — free, online, runs entirely in your browser.
Frequently asked
What is Base64 Decode?
Base64 Decode is a free online decoder that helps you decode Base64 or URL-safe Base64 strings back to UTF-8 text; runs locally in your browser. Base64 Decode uses 1 input field, returns 2 output values, and runs in your browser on the device.
What inputs and outputs does Base64 Decode use?
Base64 Decode uses 1 input field: Base64 string. Base64 Decode returns 2 output values: Decoded text and Decoded byte length.
Do my files and data stay private?
Yes. Base64 Decode 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 Decode?
Open Base64 Decode, paste or fill in the input fields, and the result updates instantly. Base64 Decode runs in your browser with no upload and no waiting.
Which browsers does Base64 Decode support?
Any modern browser works in Chrome, Firefox, Safari, and Edge on desktop and mobile. Base64 Decode uses standard web APIs and does not require any plugin, extension, or sign-up.