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Free Base64 Encoder & Decoder Online
Encode and decode Base64 strings online for free. Supports text, files, and images with instant conversion and UTF-8 support.
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How to Use Base64 Encoder / Decoder
Enter Text or Upload File
Paste your text or upload a file you want to encode to Base64.
Encode or Decode
Click Encode to convert to Base64, or Decode to convert Base64 back to text.
Copy Result
Copy your encoded or decoded result to clipboard with one click.
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Encode and Decode Base64 Strings Instantly
Helperzy Base64 Encoder/Decoder converts text, files, and images to Base64 encoding and decodes Base64 strings back to readable text. Used by developers for encoding binary data in APIs, JWT tokens, email attachments, and data URIs. Supports UTF-8 text, files, and images. All processing happens in your browser — no upload, no signup, completely free.
Frequently Asked Questions – Base64 Encoder / Decoder
Paste your text into Helperzy Base64 Encoder, click Encode, and copy your Base64 string instantly.
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Professional standards, zero cost.
Helperzy is built for everyone — developers, students, and professionals who need fast, reliable tools without the friction.
Always Private
Browser-based tools run 100% on your device. Your files are never uploaded, never seen by us, never stored anywhere.
Edge Optimised
Processes are distributed across global edge nodes for minimum latency. Server-side files auto-deleted in 60 minutes.
Always Free
Every tool is free forever. No account, no credit card, no email required. Open a tool and start in seconds.
Works Everywhere
No software to install. All browser-based tools use modern Web APIs — fast, offline-capable, and always available.
Common Questions
Absolutely. For all browser-based tools your files never leave your device — processing happens entirely in your browser. For server-side tools like PDF to Word, files are encrypted in transit, processed in isolated memory, and permanently deleted within 60 minutes.
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Get in touch
Have a tool request, found a bug, or want to report a security concern? We read every message and typically reply within 24 hours.
- Tool requests & feature ideas
- Bug reports & feedback
- Security concerns or responsible disclosure
- Partnership & business enquiries
Your message is sent securely over HTTPS. We never share your contact details with third parties.
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