Base64 Encoder & Decoder (Text & Data)
Convert text to Base64 encoding and decode Base64 back to UTF-8 text instantly.
How to Use This Tool
Select or Paste
Drop your file or paste your data directly into the tool. Everything remains strictly within your browser.
Customize & Adjust
Choose your target size, dimension, format, or parameters. The algorithm calculates the result in milliseconds.
Instant Download
Save your finished file or copy the processed result directly to your device with zero waiting time.
Universal Base64 Data Transformation
Base64 is a binary-to-text encoding scheme used across email MIME standards, data URIs, and authentication tokens. This tool provides two-way conversion with full Unicode safety.
Unicode Architecture & RFC Data Serialization Standards
Reliable text parsing and code formatting require strict compliance with international serialization specifications to prevent silent data corruption.
Our text suite is engineered around full Unicode 15.0 and UTF-8 multi-byte processing, ensuring that non-Latin characters, diacritics, and emojis are never corrupted or clipped.
JSON formatting adheres strictly to RFC 8259 AST tree parsing, and Base64 conversion complies with RFC 4648 standards using direct byte arrays to avoid legacy 8-bit Latin-1 truncation.
Technical Specifications & Standards
| Character Encoding | Unicode 15.0 / UTF-8 Multi-byte |
| Parser Specifications | RFC 8259 (JSON) & RFC 4648 (Base64) |
| Algorithmic Complexity | Single-pass linear O(N) execution |
| Memory Buffer | Up to 10MB clipboard payload in-RAM |
| Process Isolation | V8 / SpiderMonkey browser sandbox |
| Keystroke Privacy | Zero external telemetry or server pings |
Frequently Asked Questions (FAQ)
Does it support Arabic and non-English characters? ▼
Yes! Our custom implementation uses UTF-8 safe encoding so characters never get corrupted.