Plain text
text = Hello, world!
Result: SGVsbG8sIHdvcmxkIQ==
Base64 Encoder
Convert text to base64 using UTF-8 encoding. Unicode characters like emoji, accented letters, and non-Latin scripts are encoded correctly. The result is generated locally and never leaves your browser.
Privacy: this tool processes your data entirely in your browser. Nothing you paste or type is sent to the server.
Enter your values and press Calculate — the result appears here.
Worked examples
Unicode text
text = Héllo 👋
Result: SMOpbGxvIPCfkYs=
Frequently asked questions
Is base64 encryption?
No. Base64 is an encoding, not encryption — anyone can decode it trivially. Use it for data transfer or storage formats, never for secrets.
Why is my output different from other tools for the same text?
Almost always a character-encoding difference. This tool encodes UTF-8 (the web standard), so Unicode input matches the base64 your server-side code would produce for the same UTF-8 bytes.
Does this tool send my text to a server?
No. Encoding happens locally in your browser, so you can safely encode confidential data.
📚 Learn More
Cybersecurity
The Privacy Problem with Cloud AI
Key Takeaway --> 🎯 You can build a fully private AI agent that runs entirely on your local …
CybersecurityHashing vs Encryption vs Encoding: What's the Difference?
Key Takeaway --> Hashing verifies integrity and stores passwords safely. Encryption keeps data con…
CybersecurityThe Shift in How Code Gets Written
Key Takeaway --> 🎯 Agentic coding doesn't replace traditional programming skills—it amplifi…
CybersecurityThe 2026 Reality
Key Takeaway --> 🎯 The best learning strategy in 2026 combines strong fundamentals with str…
CybersecurityThe Double-Edged Sword
Key Takeaway --> 🎯 AI coding agents make junior developers more productive, but productivit…
CybersecurityThe 15 AI Security Domains
AI security is not one problem — it is 15 interconnected domains. From prompt injection to sandboxi…
🔧 Related Tools
Base64 Decoder
Decode base64 back to readable text, with clear errors for invalid or binary payloads.
Try it now →URL Encoder
Percent-encode text for URLs — as a query component or a full URI — right in your browser.
Try it now →URL Decoder
Decode percent-encoded URLs and query strings back to readable text, in your browser.
Try it now →UUID Generator
Generate RFC 4122 version-4 UUIDs — with or without hyphens, upper or lowercase.
Try it now →💬 Discuss on BestWordz Community
Join the conversation about Developer, base64 encode, base64 encoder on the BestWordz Community forum.
Visit Forum →💬 Discuss Base64 Encoder
Have questions about Base64 Encoder? Join the BestWordz Community.
Copied!