100% Browser-Based • No Upload • Free

Free Base64 Tool Encode & Decode Instantly

Convert text to Base64 encoding and decode Base64 strings back to readable text. Instant results, entirely in your browser.

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No sign-up required to try • No files uploaded • Free forever

How It Works

1
Select or drop your file
2
Processed in your browser — nothing uploaded
3
Download the result — done!
Key Features

Why Use UniTrack Base64 Tool

The quickest way to encode and decode Base64 — right in your browser.

100% Private

Your files never leave your device. Everything is processed locally in your browser.

Instant Processing

No waiting for server uploads. Processing starts immediately using your device's power.

Unlimited & Free

No file limits, no watermarks, no hidden fees. Use as much as you want, forever free.

Your Data Never Leaves Your Browser

Unlike other online tools, we don't upload your files to our servers. Everything is processed using JavaScript directly in your browser. When you close the tab, your data is gone. Zero tracking, zero risk.

0
Server uploads
0
Data stored
0
Tracking
FAQ

Frequently Asked Questions

Base64 is a binary-to-text encoding scheme that represents binary data as ASCII characters. It's commonly used in email attachments, data URLs, API authentication tokens, and embedding binary data in text-based formats.

Base64 is an encoding, not encryption. It makes data readable as text but provides no security. Anyone can decode Base64 strings. For security, use proper encryption instead.

This tool encodes and decodes text strings. For file encoding, the output would typically be used as data URIs or in API payloads where binary data needs to be transmitted as text.

Encode & Decode Base64 for Free

Convert between text and Base64 instantly — no upload, no signup, no limits.

Use Base64 Tool Browse All Tools
No sign-up required 100% browser-based Free forever