⚡ Instant Client-Side Tool • Zero Server Logs

Base64 Encoder & Decoder Converter

Convert plain text, API keys, or strings to Base64 and decode Base64 back to UTF-8 text instantly.

Text / Base64 → Base64 / Text

100% Client-Side • Zero Data Leaves Your Browser

Input (Text / Base64)

0 characters • 0 lines UTF-8

Output (Base64 / Text)

0 characters • 0 lines Instant

⚡ PRO DEVELOPER BUNDLE One-time $19

Convert millions of records via CLI scripts, automate your CI/CD pipelines, and work 100% offline with zero rate limits.

Instant digital delivery • 30-day money-back guarantee

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Instant Git deployments, serverless functions, and global edge caching for modern frontend developers.

Encodes UTF-8 strings into standard Base64

Decodes Base64 payloads back to UTF-8 text

Instant bidirectional toggle

No server interaction

Decode and inspect JSON Web Tokens (JWT) safely in your browser. Verify claims, headers, and expiration dates with 100% privacy.

Frequently Asked Questions about Base64 Encoder & Decoder

Does this support UTF-8 special characters and emojis?

Yes, it properly encodes multi-byte Unicode strings and emojis without corruption.