Free Base64 Encoder & Decoder Online - Text, Files, Images
Encode text, files & images to Base64 or decode Base64 strings. Secure client-side processing, supports bulk operations. Perfect for developers, email attachments, data URIs, and API data transmission.
Base64 Encoder/Decoder
Encode and decode text and files to/from Base64 format
Instant encoding and decoding. All processing happens locally in your browser for maximum speed.
Your data never leaves your device. Everything is processed client-side for complete privacy.
Encode any file type to Base64. Perfect for embedding images, documents, or binary data.
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used in various applications including:
Common Use Cases
- • Email attachments (MIME)
- • Embedding images in HTML/CSS
- • Data URLs for web assets
- • API authentication tokens
- • Storing binary data in JSON
Key Features
- • Safe for text-based protocols
- • Reversible encoding process
- • Platform independent
- • Widely supported standard
- • No data loss during encoding
Help others discover this amazing free tool ✨
Encode Text
Convert text to Base64 for email transmission or data storage
What Developers Say About Our Base64 Tool
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Alex Johnson
VerifiedAmazing collection of tools
30tools has become my go-to for all online utilities. Every tool I've used works perfectly and the fact that it's all free is incredible. No ads, no watermarks!
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VerifiedReliable and fast
Been using these tools for months now. They're consistently reliable and much faster than similar tools I've tried. The privacy-first approach is a huge plus.
James Wilson
VerifiedProfessional quality tools
As a freelancer, I need tools that work reliably without breaking the bank. 30tools delivers professional-grade utilities completely free. Highly recommended!
Everything you need to know about base64 encoding & decoding
This image compressor is amazing! Reduced my website images by 70% without any noticeable quality loss. The batch processing feature is a game-changer.
Perfect tool for my blog! The interface is super clean and intuitive. Love that it works directly in the browser without uploading files to servers.
Great compression quality! Used it for optimizing images for my e-commerce store. Would love to see more format options in the future.
Fast and reliable! Processed 50+ images in under a minute. The quality settings give good control over the compression ratio.