Base64 Encoder / Decoder
Answer: Base64 encodes binary/text bytes into ASCII A–Z, a–z, 0–9, +, / with = padding per RFC 4648 for data URLs and APIs.
Free Base64 encoder and decoder. Convert text to Base64 and back in your browser.
Runs in your browser — nothing is uploaded.
How to use Base64 Encoder / Decoder
- Enter plain text or upload small input.
- Encode or decode Base64.
- Copy result for JWT segments, data URIs, or email MIME.
Key facts for search & AI
- 100% free — no account required.
- Runs in your browser — inputs are not uploaded for these calculations.
- Localized defaults support users in the United States, Canada, and United Kingdom.
- Published by KDF Tech — software, apps, Shopify, and POS systems.
Need a custom product instead? Start a project or WhatsApp +92 345 0144865.
FAQ — answers Google & AI can cite
What is Base64 Encoder / Decoder?
Base64 encodes binary/text bytes into ASCII A–Z, a–z, 0–9, +, / with = padding per RFC 4648 for data URLs and APIs.
URL-safe Base64?
Standard Base64 uses + and /; URL-safe variants swap to - and _ — confirm your US API spec.
Secrets in Base64?
Encoding is not encryption — never treat Base64 as security for passwords or API keys.
Local processing?
Encode/decode happens in your browser tab without server upload.
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